Daniel H Monson

Gulf Watch Alaska, Nearshore Monitoring Component: Sea Otter Foraging Observations from Prince William Sound, Katmai National Park and Preserve, and Kenai Fjords National Park, 2012-2016

This data is part of the Gulf Watch Alaska (GWA) long term monitoring program, benthic monitoring component and a seasonal diet study in Kenai Fjords National Park. The dataset is a comma separated file exported from a Microsoft Access database. The data consists of observations made of foraging sea otters (Enhydra lutris). Observers used Questar field model spotting scopes and binoculars to identify prey. Date, local time, dive duration, success, prey type, prey size, prey number, handling time and surface time are all recorded. Sites are in Alaska and include locations in Katmai National Park and Preserve, Kenai Fjords National Park and Prince William Sound. This data in this file were collected 2012-2016.

Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Aquatic Biology, Ecology, Enhydra lutris, Gulf of Alaska, Katmai National Park and Preserve, All tags... Kenai Fjords National Park, Prince William Sound, USGS Science Data Catalog (SDC), Wildlife Biology, biota, coastal ecosystems, environment, foraging behavior, marine ecology, monitoring, prey, sea otters, synecology, Fewer tags

Sea Otter Aerial Survey Data from Lower Cook Inlet and the Outer Kenai Peninsula, Alaska, 2002

This dataset consists of three tables related to abundance and distribution of northern sea otters (Enhydra lutris kenyoni) in lower Cook Inlet and the outer Kenai Peninsula, Alaska, based on data collected during a series of aerial surveys from May-Aug 2002. The dataset consists of: (1) sea otter counts along strip transects, (2) sea otter counts in Intensive Search Unit (ISU) within the transects, and (3) transect coordinates. **NOTE: 2002 data from survey sections in Kenai Fjords National Park are also included in another USGS data release available at https://doi.org/10.5066/F7CJ8BN7

Categories: Data; Tags: Abundance (organisms), Aerial surveys, Alaska, Animals/Vertebrates, Biota, All tags... Carnivores, Cook Inlet, Ecology, Ecosystem monitoring, Enhydra lutris kenyoni, Environment, Kenai Fjords National Park, Kenai Peninsula, Mammals, Marine mammals, Northern sea otters, Otters, Population density, Population dynamics, Sea otters, Spatial distribution, USGS Science Data Catalog (SDC), Wildlife, Wildlife Biology, Fewer tags

Three data sets are included here to aid in assessment of the sea otter population collapse in southwest Alaska. One data set consists of results of sea otter surveys conducted between 1959 and 2015 at Bering Island, Russia and a selection of western Aleutian Islands in Alaska. Sea otter counts are reduced to a comparable value of otters per linear kilometer. Another data set consists per-capita and per kilometer recovery rates of stranded sea otter carcasses from locations ranging from Bering Island, Russia, several Aleutian Islands, sites along the Alaska Peninsula, and Prince William Sound, Alaska. These data are mainly from the period 1991-2009 and are from stable populations as well as those in decline or post...

Categories: Data; Tags: Eastern Aleutian Islands, Gulf of Alaska, Kodiak Island, Prince William Sound, USGS Science Data Catalog (SDC), All tags... Western Aleutian Islands, Wildlife Biology, biota, health, sea otters, wildlife biology, wildlife biology, Fewer tags

SUPERSEDED: Gulf Watch Alaska Nearshore Component: Marine Water Quality, Water Temperature from Prince William Sound, Katmai National Park and Preserve, and Kenai Fjords National Park, 2014-2016

This data release has been SUPERSEDED. No data are provided here. Data from Gulf Watch Alaska nearshore water and air temperature sampling data releases have been appended to U.S. Geological Survey data release: https://doi.org/10.5066/F7WH2N3T. This data is part of the Gulf Watch Alaska (GWA) long term monitoring program, nearshore monitoring component. The data consists of date, time, and temperature measurements from intertidal rocky sampling sites. The dataset is 5 comma separated files exported from a download from the HOBO temperature logger. Sites are in Alaska and include locations in Katmai National Park and Preserve, Kenai Fjords National Park and northern and western Prince William Sound. There are five...

Tags: Alaska Peninsula, Aquatic Biology, Benthic, Biota, Community ecology, All tags... Ecology, Ecology, Ecosystem monitoring, Environment, Environmental Health, Gulf of Alaska, Intertidal, Katmai National Park and Preserve, Kenai Fjords National Park, Nearshore Ecology, Prince William Sound, USGS Science Data Catalog (SDC), Water Quality, Water temperature, Fewer tags

Sea otter carcass recovery rates from Bering Island, some Western Aleutian Islands, the Alaskan Peninsula and Prince William Sound, 1971-2009

The table presents summary data of sea otter skulls found on carcass searches conducted along stretches of shoreline at islands or locations along a longitudinal span encompassing the sea otter population decline. Numbers of skulls encountered, length of shoreline searched, population density calculated from survey data, as well as skulls per kilometer and per-capita recovery rate are presented. The data are arranged in west to east order from Bering Island to Prince William Sound.

Categories: Data; Tags: Southwest Alaska, biota, death assemblage, field sampling, sea otters