These data are part of the Gulf Watch Alaska (GWA) long-term monitoring program and describe mussel sampling and observations conducted in the northern Gulf of Alaska. This dataset consists of six comma separated files (.csv): 1) mussel sampling site layout information, 2) mussel counts for mussels greater than 20 millimeters in a quadrat, 3) mussel size measurements for mussels greater than 20 millimeters in a quadrat, 4) mussel counts for all mussels collected from core samples, 5) mussel size frequencies for all mussels collected from core samples, and 6) list of Gulf Watch Alaska principal investigators and collaborators.

This dataset provides one table of bioenergetic and morphological measurements of Pacific blue mussels (Mytilus trossulus; N = 444) collected at three intertidal sites in Kenai Fjords National Park, Alaska. Mussels were collected at the same tidal height across all three sites on a nearly monthly basis from 2014-2015.

This dataset provides one table of bioenergetic and morphological measurements of Pacific blue mussels (Mytilus trossulus; N = 444) collected at three intertidal sites in Kenai Fjords National Park, Alaska. Mussels were collected at the same tidal height across all three sites on a nearly monthly basis from 2014-2015.

This data package includes four (4) child items with data from the Gulf Watch Alaska (GWA) long-term monitoring program (nearshore monitoring component) rocky intertidal study. Child Item One: "Rocky Intertidal Sea Star Size, Count, and Disease Data from Prince William Sound, Katmai National Park and Preserve, and Kenai Fjords National Park". The data include: (1) size and disease state of sea stars, (2) counts of sea stars, and (3) taxonomic classification. Child Item Two: "Rocky Intertidal Nucella, Lirabuccinum, Katharina, and Lottia Counts from Prince William Sound, Katmai National Park and Preserve, and Kenai Fjords National Park". The data include: (1) counts of Nucella spp., Lottia spp., Lirabuccinum dirum, and Katharina tunicata and (2) taxonomic classification. Child Item Three: "Rocky Intertidal Invertebrate and Algae Cover from Prince William Sound, Katmai National Park and Preserve, and Kenai Fjords National Park". The data include: (1) intertidal cover, (2) intertidal percent cover, (3) intertidal top layer percent cover, (4) intertidal substrate percent cover, and (5) taxonomic classification. Child Item Four: "Rocky Intertidal Limpet (Lottia persona) Data from Prince William Sound, Katmai National Park and Preserve, and Kenai Fjords National Park". The data include: (1) limpet (Lottia persona) sizes and (2) limpet counts.

These data are part of the Gulf Watch Alaska (GWA) long-term monitoring program, nearshore monitoring component. The dataset consists of 10 tables of data organized into four folders. The data are presented in Comma Separated Value (CSV) format exported from a Microsoft Access relational database. The tables are: 1) invertebrate taxonomy, 2) limpet size, 3) limpet counts, 4) Nucella, Katharina, and Lirabuccinum counts, 5) rocky intertidal cover, 6) rocky intertidal percent cover, 7) rocky intertidal top layer percent cover, 8) rocky intertidal substrate percent cover, 9) sea star counts, and 10) sea star disease.

These data are part of the Gulf Watch Alaska (GWA) long-term monitoring program, nearshore monitoring component. The dataset has three comma separated values (.csv) file exported from a Microsoft Access relational database. The data consist of 1) limpet (Lottia persona) sizes, 2) limpet counts, and 3) a table of Gulf Watch Alaska contributors.

This is a child item of the USGS Data Release: https://doi.org/10.5066/F7513WCB. These data are part of the Gulf Watch Alaska (GWA) long-term monitoring program, nearshore monitoring component. The dataset has two comma separated values (.csv) file exported from a Microsoft Access relational database. The data consist of 1) limpet (Lottia persona) sizes and 2) limpet counts.

These data are part of the Gulf Watch Alaska (GWA) long-term monitoring program. This dataset consists of observations of sea otter (Enhydra lutris) fecal samples (spraint). Observers examined fresh spraint piles to identify major prey classes in the samples and to determine sea otter diets in the Gulf of Alaska region.

These data are part of the Gulf Watch Alaska (GWA) long-term monitoring program. This dataset consists of observations of sea otter (Enhydra lutris) fecal samples (spraint). Observers examined fresh spraint piles to identify major prey classes in the samples and to determine sea otter diets in the Gulf of Alaska region.

These data are part of the Gulf Watch Alaska (GWA) long-term monitoring program, nearshore monitoring component. The dataset has six comma separated values (.csv) file exported from a Microsoft Access relational database. The data consist of percent cover and point contact data from algae and invertebrates at intertidal rocky substrate sampling sites. Tables include: 1) intertidal cover, 2) intertidal percent cover, 3) intertidal top layer percent cover, 4) intertidal substrate percent cover, 5) taxonomic classification, and 6) Gulf Watch Alaska contributors.