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Rocky Intertidal Data from Prince William Sound, Katmai National Park and Preserve, and Kenai Fjords National Park

Published by U.S. Geological Survey | Department of the Interior | Catalog Last Checked: September 12, 2026 at 11:04 PM | Dataset Last Updated: September 10, 2026 at 12:00 AM
This data package includes four (4) child items with data collected as part of 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 Motile Invertebrate 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, Katharina tunicata, and Leptasterias spp., 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) name of the algae or invertebrate species covering the intertidal substrate at each sampling quadrat, (2) percent cover for each algae or invertebrate species detected at each sampling quadrat, (3) percent cover of the top layer of algae or invertebrate species detected, (4) intertidal substrate percent cover, and (5) taxonomic classification of algae and invertebrate species detected. 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.

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