ExperimentalWe used data and feedback to make a user-friendly site. We’d love your feedback.
Back to data.ca.gov.

Characterization of Sandy Beaches and Adjacent Surf Zones, California North Coast MPA Baseline Study, 2014 to 2015

We combined taxonomically detailed surveys of macroinvertebrates and birds with targeted sampling of regionally important focal taxa including surf zone fishes, kelp and sand crabs; physical and biological metrics of the habitat; and activities of people on the beaches to develop an integrated understanding of the important ecosystem processes structuring northern California beaches. Our baseline study program consisted of the following components: Nine monthly surveys (from September 2014 through May 2015) of birds, macrophyte wrack (detached marine vegetation such as seaweeds, surfgrasses and seagrasses that are deposited on the beach), human use and physical characteristics of 12 sandy beaches and their adjacent surf zones (6 MPA and 6 reference sites); A one-time, comprehensive survey of intertidal invertebrate biodiversity during summer 2014 of the 12 focal sandy beaches; A comprehensive baseline survey of redtail surfperch (Amphistichus rhodoterus), including diet analysis, at nine sandy beaches (4 MPA, 5 reference sites) over two years; Targeted monthly surveys of sand crabs (Emerita analoga) done concurrently with redtail surfperch surveys on three long beaches for three months; and Sampling of night smelt (Spirinchus starksi) spawning aggregations from nine beaches (5 MPA, 4 reference) during spring and summer over two years.

Data files

Data title and descriptionAccess dataFile detailsLast updated

Full Data Package for Characterization of Sandy Beaches and Adjacent Surf Zones, California North Coast MPA Baseline Study, 2014 to 2015

We combined taxonomically detailed surveys of macroinvertebrates and birds with targeted sampling of regionally important focal taxa including surf zone fishes, kelp and sand crabs; physical and biological metrics of the habitat; and activities of people on the beaches to develop an integrated understanding of the important ecosystem processes structuring northern California beaches. Our baseline study program consisted of the following components: Nine monthly surveys (from September 2014 through May 2015) of birds, macrophyte wrack (detached marine vegetation such as seaweeds, surfgrasses and seagrasses that are deposited on the beach), human use and physical characteristics of 12 sandy beaches and their adjacent surf zones (6 MPA and 6 reference sites); A one-time, comprehensive survey of intertidal invertebrate biodiversity during summer 2014 of the 12 focal sandy beaches; A comprehensive baseline survey of redtail surfperch (Amphistichus rhodoterus), including diet analysis, at nine sandy beaches (4 MPA, 5 reference sites) over two years; Targeted monthly surveys of sand crabs (Emerita analoga) done concurrently with redtail surfperch surveys on three long beaches for three months; and Sampling of night smelt (Spirinchus starksi) spawning aggregations from nine beaches (5 MPA, 4 reference) during spring and summer over two years.

DownloadZIP
01/16/19

MPA Baseline Program Information - North Coast

We combined taxonomically detailed surveys of macroinvertebrates and birds with targeted sampling of regionally important focal taxa including surf zone fishes, kelp and sand crabs; physical and biological metrics of the habitat; and activities of people on the beaches to develop an integrated understanding of the important ecosystem processes structuring northern California beaches. Our baseline study program consisted of the following components: Nine monthly surveys (from September 2014 through May 2015) of birds, macrophyte wrack (detached marine vegetation such as seaweeds, surfgrasses and seagrasses that are deposited on the beach), human use and physical characteristics of 12 sandy beaches and their adjacent surf zones (6 MPA and 6 reference sites); A one-time, comprehensive survey of intertidal invertebrate biodiversity during summer 2014 of the 12 focal sandy beaches; A comprehensive baseline survey of redtail surfperch (Amphistichus rhodoterus), including diet analysis, at nine sandy beaches (4 MPA, 5 reference sites) over two years; Targeted monthly surveys of sand crabs (Emerita analoga) done concurrently with redtail surfperch surveys on three long beaches for three months; and Sampling of night smelt (Spirinchus starksi) spawning aggregations from nine beaches (5 MPA, 4 reference) during spring and summer over two years.

Download
CSV
01/16/19

MPA Baseline Program Information - North Coast - Metadata

We combined taxonomically detailed surveys of macroinvertebrates and birds with targeted sampling of regionally important focal taxa including surf zone fishes, kelp and sand crabs; physical and biological metrics of the habitat; and activities of people on the beaches to develop an integrated understanding of the important ecosystem processes structuring northern California beaches. Our baseline study program consisted of the following components: Nine monthly surveys (from September 2014 through May 2015) of birds, macrophyte wrack (detached marine vegetation such as seaweeds, surfgrasses and seagrasses that are deposited on the beach), human use and physical characteristics of 12 sandy beaches and their adjacent surf zones (6 MPA and 6 reference sites); A one-time, comprehensive survey of intertidal invertebrate biodiversity during summer 2014 of the 12 focal sandy beaches; A comprehensive baseline survey of redtail surfperch (Amphistichus rhodoterus), including diet analysis, at nine sandy beaches (4 MPA, 5 reference sites) over two years; Targeted monthly surveys of sand crabs (Emerita analoga) done concurrently with redtail surfperch surveys on three long beaches for three months; and Sampling of night smelt (Spirinchus starksi) spawning aggregations from nine beaches (5 MPA, 4 reference) during spring and summer over two years.

Download
CSV
01/16/19

MPA Boundary Details - North Coast

We combined taxonomically detailed surveys of macroinvertebrates and birds with targeted sampling of regionally important focal taxa including surf zone fishes, kelp and sand crabs; physical and biological metrics of the habitat; and activities of people on the beaches to develop an integrated understanding of the important ecosystem processes structuring northern California beaches. Our baseline study program consisted of the following components: Nine monthly surveys (from September 2014 through May 2015) of birds, macrophyte wrack (detached marine vegetation such as seaweeds, surfgrasses and seagrasses that are deposited on the beach), human use and physical characteristics of 12 sandy beaches and their adjacent surf zones (6 MPA and 6 reference sites); A one-time, comprehensive survey of intertidal invertebrate biodiversity during summer 2014 of the 12 focal sandy beaches; A comprehensive baseline survey of redtail surfperch (Amphistichus rhodoterus), including diet analysis, at nine sandy beaches (4 MPA, 5 reference sites) over two years; Targeted monthly surveys of sand crabs (Emerita analoga) done concurrently with redtail surfperch surveys on three long beaches for three months; and Sampling of night smelt (Spirinchus starksi) spawning aggregations from nine beaches (5 MPA, 4 reference) during spring and summer over two years.

Download
CSV
01/16/19

MPA Boundary Details - North Coast - Metadata

We combined taxonomically detailed surveys of macroinvertebrates and birds with targeted sampling of regionally important focal taxa including surf zone fishes, kelp and sand crabs; physical and biological metrics of the habitat; and activities of people on the beaches to develop an integrated understanding of the important ecosystem processes structuring northern California beaches. Our baseline study program consisted of the following components: Nine monthly surveys (from September 2014 through May 2015) of birds, macrophyte wrack (detached marine vegetation such as seaweeds, surfgrasses and seagrasses that are deposited on the beach), human use and physical characteristics of 12 sandy beaches and their adjacent surf zones (6 MPA and 6 reference sites); A one-time, comprehensive survey of intertidal invertebrate biodiversity during summer 2014 of the 12 focal sandy beaches; A comprehensive baseline survey of redtail surfperch (Amphistichus rhodoterus), including diet analysis, at nine sandy beaches (4 MPA, 5 reference sites) over two years; Targeted monthly surveys of sand crabs (Emerita analoga) done concurrently with redtail surfperch surveys on three long beaches for three months; and Sampling of night smelt (Spirinchus starksi) spawning aggregations from nine beaches (5 MPA, 4 reference) during spring and summer over two years.

Download
CSV
01/16/19

Sand Crab Species Lookup Table

We combined taxonomically detailed surveys of macroinvertebrates and birds with targeted sampling of regionally important focal taxa including surf zone fishes, kelp and sand crabs; physical and biological metrics of the habitat; and activities of people on the beaches to develop an integrated understanding of the important ecosystem processes structuring northern California beaches. Our baseline study program consisted of the following components: Nine monthly surveys (from September 2014 through May 2015) of birds, macrophyte wrack (detached marine vegetation such as seaweeds, surfgrasses and seagrasses that are deposited on the beach), human use and physical characteristics of 12 sandy beaches and their adjacent surf zones (6 MPA and 6 reference sites); A one-time, comprehensive survey of intertidal invertebrate biodiversity during summer 2014 of the 12 focal sandy beaches; A comprehensive baseline survey of redtail surfperch (Amphistichus rhodoterus), including diet analysis, at nine sandy beaches (4 MPA, 5 reference sites) over two years; Targeted monthly surveys of sand crabs (Emerita analoga) done concurrently with redtail surfperch surveys on three long beaches for three months; and Sampling of night smelt (Spirinchus starksi) spawning aggregations from nine beaches (5 MPA, 4 reference) during spring and summer over two years.

Download
CSV
01/16/19

Sand Crab Species Lookup Table - Metadata

We combined taxonomically detailed surveys of macroinvertebrates and birds with targeted sampling of regionally important focal taxa including surf zone fishes, kelp and sand crabs; physical and biological metrics of the habitat; and activities of people on the beaches to develop an integrated understanding of the important ecosystem processes structuring northern California beaches. Our baseline study program consisted of the following components: Nine monthly surveys (from September 2014 through May 2015) of birds, macrophyte wrack (detached marine vegetation such as seaweeds, surfgrasses and seagrasses that are deposited on the beach), human use and physical characteristics of 12 sandy beaches and their adjacent surf zones (6 MPA and 6 reference sites); A one-time, comprehensive survey of intertidal invertebrate biodiversity during summer 2014 of the 12 focal sandy beaches; A comprehensive baseline survey of redtail surfperch (Amphistichus rhodoterus), including diet analysis, at nine sandy beaches (4 MPA, 5 reference sites) over two years; Targeted monthly surveys of sand crabs (Emerita analoga) done concurrently with redtail surfperch surveys on three long beaches for three months; and Sampling of night smelt (Spirinchus starksi) spawning aggregations from nine beaches (5 MPA, 4 reference) during spring and summer over two years.

Download
CSV
01/16/19

Survey Sites Lookup Table

We combined taxonomically detailed surveys of macroinvertebrates and birds with targeted sampling of regionally important focal taxa including surf zone fishes, kelp and sand crabs; physical and biological metrics of the habitat; and activities of people on the beaches to develop an integrated understanding of the important ecosystem processes structuring northern California beaches. Our baseline study program consisted of the following components: Nine monthly surveys (from September 2014 through May 2015) of birds, macrophyte wrack (detached marine vegetation such as seaweeds, surfgrasses and seagrasses that are deposited on the beach), human use and physical characteristics of 12 sandy beaches and their adjacent surf zones (6 MPA and 6 reference sites); A one-time, comprehensive survey of intertidal invertebrate biodiversity during summer 2014 of the 12 focal sandy beaches; A comprehensive baseline survey of redtail surfperch (Amphistichus rhodoterus), including diet analysis, at nine sandy beaches (4 MPA, 5 reference sites) over two years; Targeted monthly surveys of sand crabs (Emerita analoga) done concurrently with redtail surfperch surveys on three long beaches for three months; and Sampling of night smelt (Spirinchus starksi) spawning aggregations from nine beaches (5 MPA, 4 reference) during spring and summer over two years.

Download
CSV
01/16/19

Survey Sites Lookup Table - Metadata

We combined taxonomically detailed surveys of macroinvertebrates and birds with targeted sampling of regionally important focal taxa including surf zone fishes, kelp and sand crabs; physical and biological metrics of the habitat; and activities of people on the beaches to develop an integrated understanding of the important ecosystem processes structuring northern California beaches. Our baseline study program consisted of the following components: Nine monthly surveys (from September 2014 through May 2015) of birds, macrophyte wrack (detached marine vegetation such as seaweeds, surfgrasses and seagrasses that are deposited on the beach), human use and physical characteristics of 12 sandy beaches and their adjacent surf zones (6 MPA and 6 reference sites); A one-time, comprehensive survey of intertidal invertebrate biodiversity during summer 2014 of the 12 focal sandy beaches; A comprehensive baseline survey of redtail surfperch (Amphistichus rhodoterus), including diet analysis, at nine sandy beaches (4 MPA, 5 reference sites) over two years; Targeted monthly surveys of sand crabs (Emerita analoga) done concurrently with redtail surfperch surveys on three long beaches for three months; and Sampling of night smelt (Spirinchus starksi) spawning aggregations from nine beaches (5 MPA, 4 reference) during spring and summer over two years.

Download
CSV
01/16/19

Sand Profile - Data table

We combined taxonomically detailed surveys of macroinvertebrates and birds with targeted sampling of regionally important focal taxa including surf zone fishes, kelp and sand crabs; physical and biological metrics of the habitat; and activities of people on the beaches to develop an integrated understanding of the important ecosystem processes structuring northern California beaches. Our baseline study program consisted of the following components: Nine monthly surveys (from September 2014 through May 2015) of birds, macrophyte wrack (detached marine vegetation such as seaweeds, surfgrasses and seagrasses that are deposited on the beach), human use and physical characteristics of 12 sandy beaches and their adjacent surf zones (6 MPA and 6 reference sites); A one-time, comprehensive survey of intertidal invertebrate biodiversity during summer 2014 of the 12 focal sandy beaches; A comprehensive baseline survey of redtail surfperch (Amphistichus rhodoterus), including diet analysis, at nine sandy beaches (4 MPA, 5 reference sites) over two years; Targeted monthly surveys of sand crabs (Emerita analoga) done concurrently with redtail surfperch surveys on three long beaches for three months; and Sampling of night smelt (Spirinchus starksi) spawning aggregations from nine beaches (5 MPA, 4 reference) during spring and summer over two years.

Download
CSV
01/16/19

Sand Profile - Data table - Metadata

We combined taxonomically detailed surveys of macroinvertebrates and birds with targeted sampling of regionally important focal taxa including surf zone fishes, kelp and sand crabs; physical and biological metrics of the habitat; and activities of people on the beaches to develop an integrated understanding of the important ecosystem processes structuring northern California beaches. Our baseline study program consisted of the following components: Nine monthly surveys (from September 2014 through May 2015) of birds, macrophyte wrack (detached marine vegetation such as seaweeds, surfgrasses and seagrasses that are deposited on the beach), human use and physical characteristics of 12 sandy beaches and their adjacent surf zones (6 MPA and 6 reference sites); A one-time, comprehensive survey of intertidal invertebrate biodiversity during summer 2014 of the 12 focal sandy beaches; A comprehensive baseline survey of redtail surfperch (Amphistichus rhodoterus), including diet analysis, at nine sandy beaches (4 MPA, 5 reference sites) over two years; Targeted monthly surveys of sand crabs (Emerita analoga) done concurrently with redtail surfperch surveys on three long beaches for three months; and Sampling of night smelt (Spirinchus starksi) spawning aggregations from nine beaches (5 MPA, 4 reference) during spring and summer over two years.

Download
CSV
01/16/19

Sand Crab Size - Data

We combined taxonomically detailed surveys of macroinvertebrates and birds with targeted sampling of regionally important focal taxa including surf zone fishes, kelp and sand crabs; physical and biological metrics of the habitat; and activities of people on the beaches to develop an integrated understanding of the important ecosystem processes structuring northern California beaches. Our baseline study program consisted of the following components: Nine monthly surveys (from September 2014 through May 2015) of birds, macrophyte wrack (detached marine vegetation such as seaweeds, surfgrasses and seagrasses that are deposited on the beach), human use and physical characteristics of 12 sandy beaches and their adjacent surf zones (6 MPA and 6 reference sites); A one-time, comprehensive survey of intertidal invertebrate biodiversity during summer 2014 of the 12 focal sandy beaches; A comprehensive baseline survey of redtail surfperch (Amphistichus rhodoterus), including diet analysis, at nine sandy beaches (4 MPA, 5 reference sites) over two years; Targeted monthly surveys of sand crabs (Emerita analoga) done concurrently with redtail surfperch surveys on three long beaches for three months; and Sampling of night smelt (Spirinchus starksi) spawning aggregations from nine beaches (5 MPA, 4 reference) during spring and summer over two years.

Download
CSV
01/16/19

Sand Crab Size - Data - Metadata

We combined taxonomically detailed surveys of macroinvertebrates and birds with targeted sampling of regionally important focal taxa including surf zone fishes, kelp and sand crabs; physical and biological metrics of the habitat; and activities of people on the beaches to develop an integrated understanding of the important ecosystem processes structuring northern California beaches. Our baseline study program consisted of the following components: Nine monthly surveys (from September 2014 through May 2015) of birds, macrophyte wrack (detached marine vegetation such as seaweeds, surfgrasses and seagrasses that are deposited on the beach), human use and physical characteristics of 12 sandy beaches and their adjacent surf zones (6 MPA and 6 reference sites); A one-time, comprehensive survey of intertidal invertebrate biodiversity during summer 2014 of the 12 focal sandy beaches; A comprehensive baseline survey of redtail surfperch (Amphistichus rhodoterus), including diet analysis, at nine sandy beaches (4 MPA, 5 reference sites) over two years; Targeted monthly surveys of sand crabs (Emerita analoga) done concurrently with redtail surfperch surveys on three long beaches for three months; and Sampling of night smelt (Spirinchus starksi) spawning aggregations from nine beaches (5 MPA, 4 reference) during spring and summer over two years.

Download
CSV
01/16/19

Sand Crab Weight and Length - Data

We combined taxonomically detailed surveys of macroinvertebrates and birds with targeted sampling of regionally important focal taxa including surf zone fishes, kelp and sand crabs; physical and biological metrics of the habitat; and activities of people on the beaches to develop an integrated understanding of the important ecosystem processes structuring northern California beaches. Our baseline study program consisted of the following components: Nine monthly surveys (from September 2014 through May 2015) of birds, macrophyte wrack (detached marine vegetation such as seaweeds, surfgrasses and seagrasses that are deposited on the beach), human use and physical characteristics of 12 sandy beaches and their adjacent surf zones (6 MPA and 6 reference sites); A one-time, comprehensive survey of intertidal invertebrate biodiversity during summer 2014 of the 12 focal sandy beaches; A comprehensive baseline survey of redtail surfperch (Amphistichus rhodoterus), including diet analysis, at nine sandy beaches (4 MPA, 5 reference sites) over two years; Targeted monthly surveys of sand crabs (Emerita analoga) done concurrently with redtail surfperch surveys on three long beaches for three months; and Sampling of night smelt (Spirinchus starksi) spawning aggregations from nine beaches (5 MPA, 4 reference) during spring and summer over two years.

Download
CSV
01/16/19

Sand Crab Weight and Length - Data - Metadata

We combined taxonomically detailed surveys of macroinvertebrates and birds with targeted sampling of regionally important focal taxa including surf zone fishes, kelp and sand crabs; physical and biological metrics of the habitat; and activities of people on the beaches to develop an integrated understanding of the important ecosystem processes structuring northern California beaches. Our baseline study program consisted of the following components: Nine monthly surveys (from September 2014 through May 2015) of birds, macrophyte wrack (detached marine vegetation such as seaweeds, surfgrasses and seagrasses that are deposited on the beach), human use and physical characteristics of 12 sandy beaches and their adjacent surf zones (6 MPA and 6 reference sites); A one-time, comprehensive survey of intertidal invertebrate biodiversity during summer 2014 of the 12 focal sandy beaches; A comprehensive baseline survey of redtail surfperch (Amphistichus rhodoterus), including diet analysis, at nine sandy beaches (4 MPA, 5 reference sites) over two years; Targeted monthly surveys of sand crabs (Emerita analoga) done concurrently with redtail surfperch surveys on three long beaches for three months; and Sampling of night smelt (Spirinchus starksi) spawning aggregations from nine beaches (5 MPA, 4 reference) during spring and summer over two years.

Download
CSV
01/16/19

Smelt Length - Metadata

We combined taxonomically detailed surveys of macroinvertebrates and birds with targeted sampling of regionally important focal taxa including surf zone fishes, kelp and sand crabs; physical and biological metrics of the habitat; and activities of people on the beaches to develop an integrated understanding of the important ecosystem processes structuring northern California beaches. Our baseline study program consisted of the following components: Nine monthly surveys (from September 2014 through May 2015) of birds, macrophyte wrack (detached marine vegetation such as seaweeds, surfgrasses and seagrasses that are deposited on the beach), human use and physical characteristics of 12 sandy beaches and their adjacent surf zones (6 MPA and 6 reference sites); A one-time, comprehensive survey of intertidal invertebrate biodiversity during summer 2014 of the 12 focal sandy beaches; A comprehensive baseline survey of redtail surfperch (Amphistichus rhodoterus), including diet analysis, at nine sandy beaches (4 MPA, 5 reference sites) over two years; Targeted monthly surveys of sand crabs (Emerita analoga) done concurrently with redtail surfperch surveys on three long beaches for three months; and Sampling of night smelt (Spirinchus starksi) spawning aggregations from nine beaches (5 MPA, 4 reference) during spring and summer over two years.

DownloadXML
01/16/19

Smelt Length - Data

We combined taxonomically detailed surveys of macroinvertebrates and birds with targeted sampling of regionally important focal taxa including surf zone fishes, kelp and sand crabs; physical and biological metrics of the habitat; and activities of people on the beaches to develop an integrated understanding of the important ecosystem processes structuring northern California beaches. Our baseline study program consisted of the following components: Nine monthly surveys (from September 2014 through May 2015) of birds, macrophyte wrack (detached marine vegetation such as seaweeds, surfgrasses and seagrasses that are deposited on the beach), human use and physical characteristics of 12 sandy beaches and their adjacent surf zones (6 MPA and 6 reference sites); A one-time, comprehensive survey of intertidal invertebrate biodiversity during summer 2014 of the 12 focal sandy beaches; A comprehensive baseline survey of redtail surfperch (Amphistichus rhodoterus), including diet analysis, at nine sandy beaches (4 MPA, 5 reference sites) over two years; Targeted monthly surveys of sand crabs (Emerita analoga) done concurrently with redtail surfperch surveys on three long beaches for three months; and Sampling of night smelt (Spirinchus starksi) spawning aggregations from nine beaches (5 MPA, 4 reference) during spring and summer over two years.

Download
CSV
01/16/19

Smelt Length - Data - Metadata

We combined taxonomically detailed surveys of macroinvertebrates and birds with targeted sampling of regionally important focal taxa including surf zone fishes, kelp and sand crabs; physical and biological metrics of the habitat; and activities of people on the beaches to develop an integrated understanding of the important ecosystem processes structuring northern California beaches. Our baseline study program consisted of the following components: Nine monthly surveys (from September 2014 through May 2015) of birds, macrophyte wrack (detached marine vegetation such as seaweeds, surfgrasses and seagrasses that are deposited on the beach), human use and physical characteristics of 12 sandy beaches and their adjacent surf zones (6 MPA and 6 reference sites); A one-time, comprehensive survey of intertidal invertebrate biodiversity during summer 2014 of the 12 focal sandy beaches; A comprehensive baseline survey of redtail surfperch (Amphistichus rhodoterus), including diet analysis, at nine sandy beaches (4 MPA, 5 reference sites) over two years; Targeted monthly surveys of sand crabs (Emerita analoga) done concurrently with redtail surfperch surveys on three long beaches for three months; and Sampling of night smelt (Spirinchus starksi) spawning aggregations from nine beaches (5 MPA, 4 reference) during spring and summer over two years.

Download
CSV
01/16/19

Smelt Weights - Metadata

We combined taxonomically detailed surveys of macroinvertebrates and birds with targeted sampling of regionally important focal taxa including surf zone fishes, kelp and sand crabs; physical and biological metrics of the habitat; and activities of people on the beaches to develop an integrated understanding of the important ecosystem processes structuring northern California beaches. Our baseline study program consisted of the following components: Nine monthly surveys (from September 2014 through May 2015) of birds, macrophyte wrack (detached marine vegetation such as seaweeds, surfgrasses and seagrasses that are deposited on the beach), human use and physical characteristics of 12 sandy beaches and their adjacent surf zones (6 MPA and 6 reference sites); A one-time, comprehensive survey of intertidal invertebrate biodiversity during summer 2014 of the 12 focal sandy beaches; A comprehensive baseline survey of redtail surfperch (Amphistichus rhodoterus), including diet analysis, at nine sandy beaches (4 MPA, 5 reference sites) over two years; Targeted monthly surveys of sand crabs (Emerita analoga) done concurrently with redtail surfperch surveys on three long beaches for three months; and Sampling of night smelt (Spirinchus starksi) spawning aggregations from nine beaches (5 MPA, 4 reference) during spring and summer over two years.

DownloadXML
01/16/19

Smelt Weights - Data

We combined taxonomically detailed surveys of macroinvertebrates and birds with targeted sampling of regionally important focal taxa including surf zone fishes, kelp and sand crabs; physical and biological metrics of the habitat; and activities of people on the beaches to develop an integrated understanding of the important ecosystem processes structuring northern California beaches. Our baseline study program consisted of the following components: Nine monthly surveys (from September 2014 through May 2015) of birds, macrophyte wrack (detached marine vegetation such as seaweeds, surfgrasses and seagrasses that are deposited on the beach), human use and physical characteristics of 12 sandy beaches and their adjacent surf zones (6 MPA and 6 reference sites); A one-time, comprehensive survey of intertidal invertebrate biodiversity during summer 2014 of the 12 focal sandy beaches; A comprehensive baseline survey of redtail surfperch (Amphistichus rhodoterus), including diet analysis, at nine sandy beaches (4 MPA, 5 reference sites) over two years; Targeted monthly surveys of sand crabs (Emerita analoga) done concurrently with redtail surfperch surveys on three long beaches for three months; and Sampling of night smelt (Spirinchus starksi) spawning aggregations from nine beaches (5 MPA, 4 reference) during spring and summer over two years.

Download
CSV
01/16/19

Smelt Weights - Data - Metadata

We combined taxonomically detailed surveys of macroinvertebrates and birds with targeted sampling of regionally important focal taxa including surf zone fishes, kelp and sand crabs; physical and biological metrics of the habitat; and activities of people on the beaches to develop an integrated understanding of the important ecosystem processes structuring northern California beaches. Our baseline study program consisted of the following components: Nine monthly surveys (from September 2014 through May 2015) of birds, macrophyte wrack (detached marine vegetation such as seaweeds, surfgrasses and seagrasses that are deposited on the beach), human use and physical characteristics of 12 sandy beaches and their adjacent surf zones (6 MPA and 6 reference sites); A one-time, comprehensive survey of intertidal invertebrate biodiversity during summer 2014 of the 12 focal sandy beaches; A comprehensive baseline survey of redtail surfperch (Amphistichus rhodoterus), including diet analysis, at nine sandy beaches (4 MPA, 5 reference sites) over two years; Targeted monthly surveys of sand crabs (Emerita analoga) done concurrently with redtail surfperch surveys on three long beaches for three months; and Sampling of night smelt (Spirinchus starksi) spawning aggregations from nine beaches (5 MPA, 4 reference) during spring and summer over two years.

Download
CSV
01/16/19

Smelt Abundance - Metadata

We combined taxonomically detailed surveys of macroinvertebrates and birds with targeted sampling of regionally important focal taxa including surf zone fishes, kelp and sand crabs; physical and biological metrics of the habitat; and activities of people on the beaches to develop an integrated understanding of the important ecosystem processes structuring northern California beaches. Our baseline study program consisted of the following components: Nine monthly surveys (from September 2014 through May 2015) of birds, macrophyte wrack (detached marine vegetation such as seaweeds, surfgrasses and seagrasses that are deposited on the beach), human use and physical characteristics of 12 sandy beaches and their adjacent surf zones (6 MPA and 6 reference sites); A one-time, comprehensive survey of intertidal invertebrate biodiversity during summer 2014 of the 12 focal sandy beaches; A comprehensive baseline survey of redtail surfperch (Amphistichus rhodoterus), including diet analysis, at nine sandy beaches (4 MPA, 5 reference sites) over two years; Targeted monthly surveys of sand crabs (Emerita analoga) done concurrently with redtail surfperch surveys on three long beaches for three months; and Sampling of night smelt (Spirinchus starksi) spawning aggregations from nine beaches (5 MPA, 4 reference) during spring and summer over two years.

DownloadXML
01/16/19

Smelt Abundance - Data

We combined taxonomically detailed surveys of macroinvertebrates and birds with targeted sampling of regionally important focal taxa including surf zone fishes, kelp and sand crabs; physical and biological metrics of the habitat; and activities of people on the beaches to develop an integrated understanding of the important ecosystem processes structuring northern California beaches. Our baseline study program consisted of the following components: Nine monthly surveys (from September 2014 through May 2015) of birds, macrophyte wrack (detached marine vegetation such as seaweeds, surfgrasses and seagrasses that are deposited on the beach), human use and physical characteristics of 12 sandy beaches and their adjacent surf zones (6 MPA and 6 reference sites); A one-time, comprehensive survey of intertidal invertebrate biodiversity during summer 2014 of the 12 focal sandy beaches; A comprehensive baseline survey of redtail surfperch (Amphistichus rhodoterus), including diet analysis, at nine sandy beaches (4 MPA, 5 reference sites) over two years; Targeted monthly surveys of sand crabs (Emerita analoga) done concurrently with redtail surfperch surveys on three long beaches for three months; and Sampling of night smelt (Spirinchus starksi) spawning aggregations from nine beaches (5 MPA, 4 reference) during spring and summer over two years.

Download
CSV
01/16/19

Smelt Abundance - Data - Metadata

We combined taxonomically detailed surveys of macroinvertebrates and birds with targeted sampling of regionally important focal taxa including surf zone fishes, kelp and sand crabs; physical and biological metrics of the habitat; and activities of people on the beaches to develop an integrated understanding of the important ecosystem processes structuring northern California beaches. Our baseline study program consisted of the following components: Nine monthly surveys (from September 2014 through May 2015) of birds, macrophyte wrack (detached marine vegetation such as seaweeds, surfgrasses and seagrasses that are deposited on the beach), human use and physical characteristics of 12 sandy beaches and their adjacent surf zones (6 MPA and 6 reference sites); A one-time, comprehensive survey of intertidal invertebrate biodiversity during summer 2014 of the 12 focal sandy beaches; A comprehensive baseline survey of redtail surfperch (Amphistichus rhodoterus), including diet analysis, at nine sandy beaches (4 MPA, 5 reference sites) over two years; Targeted monthly surveys of sand crabs (Emerita analoga) done concurrently with redtail surfperch surveys on three long beaches for three months; and Sampling of night smelt (Spirinchus starksi) spawning aggregations from nine beaches (5 MPA, 4 reference) during spring and summer over two years.

Download
CSV
01/16/19

Surf Perch - Data

We combined taxonomically detailed surveys of macroinvertebrates and birds with targeted sampling of regionally important focal taxa including surf zone fishes, kelp and sand crabs; physical and biological metrics of the habitat; and activities of people on the beaches to develop an integrated understanding of the important ecosystem processes structuring northern California beaches. Our baseline study program consisted of the following components: Nine monthly surveys (from September 2014 through May 2015) of birds, macrophyte wrack (detached marine vegetation such as seaweeds, surfgrasses and seagrasses that are deposited on the beach), human use and physical characteristics of 12 sandy beaches and their adjacent surf zones (6 MPA and 6 reference sites); A one-time, comprehensive survey of intertidal invertebrate biodiversity during summer 2014 of the 12 focal sandy beaches; A comprehensive baseline survey of redtail surfperch (Amphistichus rhodoterus), including diet analysis, at nine sandy beaches (4 MPA, 5 reference sites) over two years; Targeted monthly surveys of sand crabs (Emerita analoga) done concurrently with redtail surfperch surveys on three long beaches for three months; and Sampling of night smelt (Spirinchus starksi) spawning aggregations from nine beaches (5 MPA, 4 reference) during spring and summer over two years.

Download
CSV
01/16/19

Surf Perch - Data - Metadata

We combined taxonomically detailed surveys of macroinvertebrates and birds with targeted sampling of regionally important focal taxa including surf zone fishes, kelp and sand crabs; physical and biological metrics of the habitat; and activities of people on the beaches to develop an integrated understanding of the important ecosystem processes structuring northern California beaches. Our baseline study program consisted of the following components: Nine monthly surveys (from September 2014 through May 2015) of birds, macrophyte wrack (detached marine vegetation such as seaweeds, surfgrasses and seagrasses that are deposited on the beach), human use and physical characteristics of 12 sandy beaches and their adjacent surf zones (6 MPA and 6 reference sites); A one-time, comprehensive survey of intertidal invertebrate biodiversity during summer 2014 of the 12 focal sandy beaches; A comprehensive baseline survey of redtail surfperch (Amphistichus rhodoterus), including diet analysis, at nine sandy beaches (4 MPA, 5 reference sites) over two years; Targeted monthly surveys of sand crabs (Emerita analoga) done concurrently with redtail surfperch surveys on three long beaches for three months; and Sampling of night smelt (Spirinchus starksi) spawning aggregations from nine beaches (5 MPA, 4 reference) during spring and summer over two years.

Download
CSV
01/16/19

Surf Perch Diet - Metadata

We combined taxonomically detailed surveys of macroinvertebrates and birds with targeted sampling of regionally important focal taxa including surf zone fishes, kelp and sand crabs; physical and biological metrics of the habitat; and activities of people on the beaches to develop an integrated understanding of the important ecosystem processes structuring northern California beaches. Our baseline study program consisted of the following components: Nine monthly surveys (from September 2014 through May 2015) of birds, macrophyte wrack (detached marine vegetation such as seaweeds, surfgrasses and seagrasses that are deposited on the beach), human use and physical characteristics of 12 sandy beaches and their adjacent surf zones (6 MPA and 6 reference sites); A one-time, comprehensive survey of intertidal invertebrate biodiversity during summer 2014 of the 12 focal sandy beaches; A comprehensive baseline survey of redtail surfperch (Amphistichus rhodoterus), including diet analysis, at nine sandy beaches (4 MPA, 5 reference sites) over two years; Targeted monthly surveys of sand crabs (Emerita analoga) done concurrently with redtail surfperch surveys on three long beaches for three months; and Sampling of night smelt (Spirinchus starksi) spawning aggregations from nine beaches (5 MPA, 4 reference) during spring and summer over two years.

DownloadXML
01/16/19

Surf Perch Diet - Data

We combined taxonomically detailed surveys of macroinvertebrates and birds with targeted sampling of regionally important focal taxa including surf zone fishes, kelp and sand crabs; physical and biological metrics of the habitat; and activities of people on the beaches to develop an integrated understanding of the important ecosystem processes structuring northern California beaches. Our baseline study program consisted of the following components: Nine monthly surveys (from September 2014 through May 2015) of birds, macrophyte wrack (detached marine vegetation such as seaweeds, surfgrasses and seagrasses that are deposited on the beach), human use and physical characteristics of 12 sandy beaches and their adjacent surf zones (6 MPA and 6 reference sites); A one-time, comprehensive survey of intertidal invertebrate biodiversity during summer 2014 of the 12 focal sandy beaches; A comprehensive baseline survey of redtail surfperch (Amphistichus rhodoterus), including diet analysis, at nine sandy beaches (4 MPA, 5 reference sites) over two years; Targeted monthly surveys of sand crabs (Emerita analoga) done concurrently with redtail surfperch surveys on three long beaches for three months; and Sampling of night smelt (Spirinchus starksi) spawning aggregations from nine beaches (5 MPA, 4 reference) during spring and summer over two years.

Download
CSV
01/16/19

Surf Perch Diet - Data - Metadata

We combined taxonomically detailed surveys of macroinvertebrates and birds with targeted sampling of regionally important focal taxa including surf zone fishes, kelp and sand crabs; physical and biological metrics of the habitat; and activities of people on the beaches to develop an integrated understanding of the important ecosystem processes structuring northern California beaches. Our baseline study program consisted of the following components: Nine monthly surveys (from September 2014 through May 2015) of birds, macrophyte wrack (detached marine vegetation such as seaweeds, surfgrasses and seagrasses that are deposited on the beach), human use and physical characteristics of 12 sandy beaches and their adjacent surf zones (6 MPA and 6 reference sites); A one-time, comprehensive survey of intertidal invertebrate biodiversity during summer 2014 of the 12 focal sandy beaches; A comprehensive baseline survey of redtail surfperch (Amphistichus rhodoterus), including diet analysis, at nine sandy beaches (4 MPA, 5 reference sites) over two years; Targeted monthly surveys of sand crabs (Emerita analoga) done concurrently with redtail surfperch surveys on three long beaches for three months; and Sampling of night smelt (Spirinchus starksi) spawning aggregations from nine beaches (5 MPA, 4 reference) during spring and summer over two years.

Download
CSV
01/16/19

Supporting files

Data title and descriptionAccess dataFile detailsLast updated

Final Report Baseline Characterization of Sandy Beach Ecosystems along the North Coast of California

North coast baseline (phase I) marine protected area (MPA) final report forBaseline Characterization of Sandy Beach Ecosystems, California North Coast MPA Baseline Study, 2014 to 2015. This project and report were completed in fulfillment of CA Sea Grant R/MPA-38.

PDF
01/16/19

Sand Profile - Methods and Sampling Metadata

Metadata on the sand profile sample methods

PDF
01/16/19

Sand Crab Size - Methods and Sampling Metadata

Metadata on sand crab sizing methods

PDF
01/16/19

Sand Crab Weight and Length - Methods and Sampling Metadata

Metadata for sand crab weight and length survey methods

PDF
01/16/19

Smelt Length - Methods and Sampling Metadata

Metadata for smelt length survey sampling methods

PDF
01/16/19

Smelt Weights - Methods and Sampling Metadata

Metadata for smelt weight survey methods

PDF
01/16/19

Smelt Abundance - Methods and Sampling Metadata

Metadata for smelt abundance sampling methods

PDF
01/16/19

Surf Perch - Methods and Sampling Metadata

Metadata for surf perch sampling methods

PDF
01/16/19

Surf Perch Diet - Methods and Sampling Metadata

Metadata for surf perch diet sampling methods

PDF
01/16/19

API endpoint

Dataset Name

Use the query web API to retrieve data with a set of basic parameters. Copy the API endpoint you need to start.

Usage documentation