Tabular data set summarizing molt walk surveys for invasive marine invertebrates (i.e., European Green Crab) and native crabs on islands in Alaska Maritime National Wildlife Refuge between July 14, 2024 and July 31, 2024.

An invasive crab inventory survey was performed to document the abundance and spatial distribution of the European green crab (Carcinus maenas) and the Japanese shore crab (Hemigrapsus sanguineus) at Assateague Island National Seashore (ASIS) which forms the eastern boundaries of Chincoteague and Sinepuxent Bays. Three habitat types (rocky, vegetated and unvegetated) are present within the Chincoteague and Sinepuxent Bays. Each habitat type was sampled to determine if different habitat types support different populations of these invasive crabs. Rocky habitat is known to be limited in these bays and there are only seven known locations of this habitat type. Crab traps were placed at randomly assigned stations where tidal elevations are within the known range and preferences of the invasive crabs. Throughout two surveys representing July and September conditions, 15 species were collected and only one species was identified as an invasive crab. Only three C. maenas were captured throughout the project. These individuals were captured during the July survey at one of the rocky habitat stations. No invasive crab species were collected at either the vegetated or unvegetated habitats. Discrete water quality parameters that were measured during the initial deployment indicate that temperature and salinity at the survey stations may be at the extreme end of this species tolerance.

An invasive crab inventory survey was performed to document the abundance and spatial distribution of the European green crab (Carcinus maenas) and the Japanese shore crab (Hemigrapsus sanguineus) at Assateague Island National Seashore (ASIS) which forms the eastern boundaries of Chincoteague and Sinepuxent Bays. Three habitat types (rocky, vegetated and unvegetated) are present within the Chincoteague and Sinepuxent Bays. Each habitat type was sampled to determine if different habitat types support different populations of these invasive crabs. Rocky habitat is known to be limited in these bays and there are only seven known locations of this habitat type. Crab traps were placed at randomly assigned stations where tidal elevations are within the known range and preferences of the invasive crabs. Throughout two surveys representing July and September conditions, 15 species were collected and only one species was identified as an invasive crab. Only three C. maenas were captured throughout the project. These individuals were captured during the July survey at one of the rocky habitat stations. No invasive crab species were collected at either the vegetated or unvegetated habitats. Discrete water quality parameters that were measured during the initial deployment indicate that temperature and salinity at the survey stations may be at the extreme end of this species tolerance.

Tabular data set summarizing detection and location of invasive mammals (primarily rodents, fox, rabbits, and ungulates), on islands in Alaska Maritime National Wildlife Refuge between July 14, 2024 and July 31, 2024.

Tabular data set summarizing detection and location of invasive mammals (primarily rodents, fox, rabbits, and ungulates), on islands in Alaska Maritime National Wildlife Refuge between July 14, 2024 and July 31, 2024.

This dataset is from field surveys that examined depth distribution, habitat association, and growth of newly settled Tanner crab at 4 sites around the eastern end of Kodiak Island, Alaska.

This data package contains one table with morphometric and diet information for "non-die-off" seabirds captured and collected in southcentral and southwest Alaska. Data pertains to birds captured (live) or collected (lethally) including, bird identification numbers, sampling dates, geographic locations, body measurements, diets (from either stomach contents or regurgitated prey), and sex and age of the bird when discernible. Common Murres (Uria aalge) and Black-legged Kittiwakes (Rissa tridactyla) were captured from their breeding colonies in lower Cook Inlet, Alaska, 2016-2023. Kittiwakes, murres, Glaucous-winged Gulls (Larus glaucescens) and Horned Puffins (Fratercula corniculata) were collected in Prince William Sound, Cook Inlet, and Unalaska.

This data package contains one table with morphometric and diet information for "non-die-off" seabirds captured and collected in southcentral and southwest Alaska. Data pertains to birds captured (live) or collected (lethally) including, bird identification numbers, sampling dates, geographic locations, body measurements, diets (from either stomach contents or regurgitated prey), and sex and age of the bird when discernible. Common Murres (Uria aalge) and Black-legged Kittiwakes (Rissa tridactyla) were captured from their breeding colonies in lower Cook Inlet, Alaska, 2016-2023. Kittiwakes, murres, Glaucous-winged Gulls (Larus glaucescens) and Horned Puffins (Fratercula corniculata) were collected in Prince William Sound, Cook Inlet, and Unalaska.

The Alaska Department of Fish and Game conducts annual shellfish surveys that include Red King Crab, Tanner Crab, and Shrimp which is used to manage the personal commercial fisheries. Lack of oceanographic data in Northern Southeast Alaska spurred interest in helping create an oceanographic database by collecting CTD in our current survey locations. The CTD data include conductivity(S/m), depth(m), pressure (db), oxygen saturation (ml/l), salinity (PSU), and Temperature (Celsius).