173 Works

Improving Preseason Forecasts of Sockeye Salmon Runs through Salmon Smolt Monitoring in Kenai River, Alaska: 2005 - 2007

Mark Willette & Robert DeCino
This project estimated the age, size, and stable isotope composition of Kenai River sockeye salmon smolts and estimated their abundance using mark-recapture and acoustic methods in 2005-2007. Mark-recapture estimates of sockeye salmon smolt abundance were 31,297,118 (95% CI:23,528,024-39,066,212) in 2005, 9,279,385 (95% CI: 5,937,420-12,621,349) in 2006, and 9,767,167 (95% CI: 6,898,759-12,635,576) in 2007. Acoustic estimates (day and night) of sockeye salmon smolt abundance were 54,702,090 (95% CI: 53,554,507-55,849,673) in 2005, 15,088,517 (95% CI: 14,548.445-15,628,589) in...

Angelo Coast Range Reserve - Information Sheet

University Of California Natural Reserve System & Peter Steel
The Angelo Coast Range Reserve, one of the NRS's most diverse sites, is located on the South Fork of the Eel River. The reserve encompasses four aquatic and at least 26 terrestrial habitat types, including redwood groves, mixed conifer deciduous forests, meadows, several types of chaparral, and the state's largest virgin Douglas-fir forest community. Olympic salamanders, flying squirrels, black bears, and federally threatened northern spotted owls are among the old-growth inhabitants. The reserve also protects...

Biophysical Observations Aboard Alaska Marine Highway System Ferry: Tustumena, Gulf of Alaska (2004-2008)

Edward D. Cokelet
An oceanographic measurement system aboard the Alaskan ferry Tustumena operated for four years in the Alaska Coastal Current with funding from the Exxon Valdez Oil Spill Trustee Council, the North Pacific Research Board and the National Oceanic and Atmospheric Administration. Sampling water from the sea chest of the ship at 4m, the underway system measured: (1) temperature and salinity: basic physical variables, (2) nitrate: an essential phytoplankton nutrient, (3) chlorophyll fluorescence: an indicator of phytoplankton...

Resistance of naturally spawned pink salmon eggs to mechanical shock

John Thedinga, Mark Carls, Jacek Maselko, Ronald Heintz & Rice, Stanley (Jeep)
Routine hydraulic sampling of pink salmon eggs (Oncorhynchus gorbuscha) is the subject of a long-running dispute over impacts of the Exxon Valdez oil spill on embryo survival in Prince William Sound, Alaska, because relationships between the time of spawning, sensitivity of eggs to mechanical damage, and sample timing were unclear. Previous laboratory or hatchery studies demonstrate that resistance of eggs to mechanical damage increases with maturity, but applicability to natural populations requires an understanding of...

BIEN 3

NCEAS And IPlant & BIEN Group
a database of over 80 million New World plant observations from various databanks and herbaria

Observer classification of live, mechanically damaged, and dead pink salmon eggs

Mark Carls, John Thedinga & Robert Thomas
Susceptibility of pink salmon (Oncorhynchus gorbuscha) eggs to mechanical damage (shock) was studied to test the ability of observers to discriminate among live, dead, and shocked eggs. In a series of six laboratory trials, the mean error rate in discrimination did not exceed 12% and was less than or equal to 3.5% in 4 of 6 trials. The most common error was misclassification of shocked eggs as live (less than or equal to 9 +/-...

Blue Oak Ranch Reserve

University Of California Natural Reserve System & Michael Hamilton
Streams on the ranch support healthy stands of riparian vegetation in addition to aquatic species. They are important habitat for migratory birds and may be migratory corridors for numerous aquatic and terrestrial animal species. At least 73 vascular plant families are found at BORR, almost 80 percent of which are native. Plant communities include blue oak woodland, valley oak woodland, black oak woodland, coast live oak woodland, riparian forest, chamise chaparral, Diablan sage scrub, nonnative...

Año Nuevo Island Reserve - Information Sheet

University Of California Natural Reserve System & Steve Davenport
Located midway between San Francisco and Santa Cruz, along the rural San Mateo coast, Año Nuevo Island is a rocky islet teeming with with breeding seals, sea lions, and seabirds. Just two hundred years ago the island was connected to the mainland by a low peninsula. It served as a Coast Guard light station from 1872 to 1948. The fog signal house and abandoned former lightkeepers' residence can still be seen from shore. Today the...

Geographic Extent, Temporal Persistence and Mapping of Floating Oil from the the Exxon Valdez Oil Spill: 1989

Marshal Kendziorek
Information about this project comes from the original project proposal submitted in October, 1989. No Final Report is available. The general mission of this Natural Resource Damage Assessment floating oil mapping effort was to document the extent, amount and persistence of oil resulting from the EXXON VALDEZ oil spill. Maps have been produced on a regular basis showing the location of oil from aerial surveys from the first day of the spill on March 24,...

Assessment of Bivalve Recovery on Treated Mixed-Soft Beaches In Prince William Sound, 1989-1997

Dennis Lees & William Driskell
National Oceanic and Atmospheric Administration treatment effects studies from 1989 through 1997 suggested that bivalve assemblages on beaches in Prince William Sound treated with high-pressure washing were severely injured in terms of abundance, species composition, and function. Restoration Project 040574 assessed the generality and persistence of this apparent injury to this assemblage. We found that the initial conclusions were accurate, indicating that a considerable proportion of mixed-soft beaches in treated areas of the sound remained...

Acoustic surveys to determine biomass and distribution of forage species in Prince William Sound, Alaska: 1995 - 1998

Lewis Haldorson, Thomas Shirley, Kenneth Coyle & Richard Thorne
[Missing any annual plankton and CTD data sets from this study] Prince William Sound (PWS) is one of the largest areas of protected waters bordering the Gulf of Alaska (GOA). It, and the nearby open waters of the Gulf, provide foraging areas for populations of apex predators including piscivorous seabirds and marine mammals. These surface- dependent predators were adversely impacted by the EXXON VALDEZ oil spill (EVOS); and many experienced declines from which they have...

Pop-up Satellite Tag Pacific Halibut (Hippoglossus stenolepis) Temperature data, Gulf of Alaska (2000-2002)

Andrew Seitz
To maintain healthy commercial and sport fisheries for Pacific halibut (Hippoglossus stenolepis), critical habitat must be defined by determining life history patterns on a daily and seasonal basis. Pop-up satellite archival transmitting (PSAT) tags provide a fisheries-independent method of collecting environmental preference data (depth and ambient water temperature) as well as daily geolocation estimates based on ambient light conditions. In this study, 14 adult halibut (107-165 cm FL) were tagged and released with PSAT tags...

Pop-up Satellite Tag Pacific Halibut (Hippoglossus stenolepis) Depth Data, Gulf of Alaska (2000-2002)

Andrew Seitz
To maintain healthy commercial and sport fisheries for Pacific halibut (Hippoglossus stenolepis), critical habitat must be defined by determining life history patterns on a daily and seasonal basis. Pop-up satellite archival transmitting (PSAT) tags provide a fisheries-independent method of collecting environmental preference data (depth and ambient water temperature) as well as daily geolocation estimates based on ambient light conditions. In this study, 14 adult halibut (107-165 cm FL) were tagged and released with PSAT tags...

PWSRCAC Long-Term Environmental Monitoring Program, 1993-2009

Joe Banta, Marie L. Larsen, James R. Payne, William B. Driskell, Mark Swanson & Jeffrey W. Short
Prince William Sound Regional Citizens Advisory Council (PWSRCAC) Long Term (oil) Monitoring Program data from mussel tissues, intertidal and subtidal sediments from fixed monitoring sites in Prince William Sound, Outer Kenai Coast and Kodiak, Alaska. Since 1993, the council has monitored samples from mussels and sediments at 10 sites in Prince William Sound and the Gulf of Alaska. The samples are monitored for the presence of petroleum hydrocarbons. Samples are collected in summer and late...

Toward Long-Term Monitoring of the Gulf of Alaska Ecosystem, GAK1 Mooring Freshwater Discharge data, Seward, Alaska (1970-2012)

Weingartner, Thomas J. (Tom) & Thomas C. Royer
This program continues a 40(+) year time series of temperature and salinity measurements at hydrographic station GAK 1. The data set, which began in 1970, now consists of monthly CTDs and a mooring with 6 - 7 temperature/conductivity recorders throughout the water column, a fluorometer and nitrate sensor at 20 m depth and a nitrate sensor at 150 m depth. The project monitors five important Alaska Coastal Current ecosystem parameters and to quantify and understand...

USA National Phenology Network (USA-NPN) Plant and Animal Phenology Data for the United States

USA National Phenology Network (USA-NPN)
In response to the growing need to understand the response of plant and animal species to environmental variation and climate change and to develop a widespread baseline against which future phenological change may be measured, a consortium of scientists and agencies organized the USA-NPN, with a mandate to collect and share phenology data. More information on the USA-NPN can be found at http://www.usanpn.org/about. As of January 1, 2013, the dataset contains phenology data on 591...

USA National Phenology Network (USA-NPN) Plant and Animal Phenology Data for the United States

USA National Phenology Network (USA-NPN)
In response to the growing need to understand the response of plant and animal species to environmental variation and climate change and to develop a widespread baseline against which future phenological change may be measured, a consortium of scientists and agencies organized the USA-NPN, with a mandate to collect and share phenology data. More information on the USA-NPN can be found at http://www.usanpn.org/about. As of January 1, 2013, the dataset contains phenology data on 591...

Egg and larval mortality data between oiled and nonoiled areas of Prince William Sound, Alaska following the Exxon Valdez Oil Spill in 1989

Evelyn Brown & Michael McGurk
Study History: Fish/Shellfish Study Number 11 was initiated as a State/Federal Natural Resource Damage Assessment project as part of the 1989 Exxon Valdez oil spill study plan and continued through the 1992 work plan. Most components of this report were published in October 1996 in the Canadian Journal of Fisheries and Aquatic Sciences, vol. 53(10), followed by one article published in August 1997 in the Canadian Journal of Fisheries and Aquatic Sciences, vol. 54(8). Objectives:...

Registration Year

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