47 Works

Aerial Surveys of Harbor Seals in Prince William Sound, Alaska: 1989 - 2001

Kathryn Frost, Sara Iverson, Lloyd Lowry, Mike Simpkins & Jay Ver Hoef
Study History: Restoration Project 01064 began in 1993 as a continuation of the initial post-spill study effort conducted as Marine Mammal Study Number 5 (Assessment of Injury to Harbor Seals in Prince William Sound, Alaska, and Adjacent Areas) in 1989 through 1991 and reclassified as Restoration Study Number 73 (Harbor Seal Restoration Study) in 1992. A final report was issued in 1994 for the combined Marine Mammal Study Number 5 and Restoration Study Number 73,...

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

& 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...

Salmon escapement estimates at the Little Waterfall barrier bypass, Afognak Island, Alaska: 1995 - 1998

Steven Honnold, Jim Richardson & Joe Sullivan
Surveys were conducted in 1992-93 at Little Waterfall Creek (LWC), Afognak Island, to evaluate instream habitat and potential stock restoration techniques for wild salmon stocks. Data indicated that LWC contained significant amounts of spawning habitat that were underutilized by pink and coho salmon due to an ineffective barrier bypass structure. The project priorities were to renovate the bypass to reduce gradients and design resting pools to minimize water velocity. The bypass renovation was completed in...

Pacific Herring (Clupea pallasi) Otolith Microchemistry Data, Sitka Sound, Alaska (2007-2008)

Heather Meuret-Woody & Nate Bickford
The primary objective of this project was to obtain information leading to better identification of essential fish habitat in Prince William Sound. By using trace element signatures of edge portions of juvenile herring otoliths, we identified the otolith chemical signature of individual rearing bays within Sitka Sound. We used trace element signatures of edge portions of adult herring otoliths to identify the otolith chemical signature of spawning areas within Sitka Sound. We also used trace...

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

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...

The coastal habitat injury assessment in Prince William Sound, Cook Inlet-Kenai Peninsula and Kodiak-Alaska Peninsula, Alaska: 1989 - 1991

Ray Highsmith, Lyman McDonald, Dale Strickland, Wallace Erickson, Michael Stekoll & Willard Barber
Study History: Comprehensive assessment of coastal habitat was initiated as Coastal Habitat Study No. 1 in 1989. Phase I was conducted in summer 1989/spring 1990 and involved site selection/ground truthing. Phase II involved intensive evaluation of study sites to determine extent of injury to natural resources in supratidal, intertidal and subtidal areas. Phase II commenced in the fall of 1989 and continued through the summer of 1991. The supratidal component was completed in 1991 and...

Satellite tagging of Harbor Seals in Prince William Sound, Alaska: 1992 - 1999

Mike Simpkins, Jay Ver Hoef, Kathryn Frost, Sara Iverson & Lloyd Lowry
Study History: Restoration Project 01064 began in 1993 as a continuation of the initial post-spill study effort conducted as Marine Mammal Study Number 5 (Assessment of Injury to Harbor Seals in Prince William Sound, Alaska, and Adjacent Areas) in 1989 through 1991 and reclassified as Restoration Study Number 73 (Harbor Seal Restoration Study) in 1992. A final report was issued in 1994 for the combined Marine Mammal Study Number 5 and Restoration Study Number 73,...

Blue Oak Ranch Reserve

& 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...

Juneau Icefield Glacier Mass Balance

M. Pelto

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...

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...

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...

Pacific Herring (Clupea pallasi) sample data from Sitka Sound, Alaska (2007-2008)

Heather Meuret-Woody & Nate Bickford
The primary objective of this project was to obtain information leading to better identification of essential fish habitat in Prince William Sound. The data here are include information on herring samples pulled from Sitka Sound in Alaska for otolith analysis as well as site locations. By using trace element signatures of edge portions of juvenile herring otoliths, we identified the otolith chemical signature of individual rearing bays within Sitka Sound. We used trace element signatures...

Assessing prey of pink salmon fry from zooplankton net catch data in Prince William Sound, Alaska: 2001

Richard Thorne & Gary Thomas
This particular dataset focuses on zooplankton net catch data from Spring 2001. Multi-frequency acoustic/net sampling assessments of the pink salmon food supply and predators were conducted in Prince William Sound during spring 2001. Five cruises were completed between April 18 and June 15, 2001. The results of this monitoring were in sharp contrast with observations from the previous year. Overall the abundance of large copepods (primarily Neocalanus) was much lower in 2001. The abundance was...

Evaluating Harlequin Duck Population Recovery: CYP1A Monitoring and Population Data (2006, 2007, 2009)

Dan Esler
Harlequin ducks have been studied extensively in Prince William Sound during the restoration phase following the Exxon Valdez oil spill, leading to one of the most thorough considerations of wildlife population injury and recovery following a major oil spill ever undertaken. These efforts have included population monitoring by the U.S. Fish and Wildlife Service and the Alaska Department of Fish and Game, as well as a series of directed research projects designed to elucidate the...

Cutthroat trout and Dolly Varden char inventory in Prince William Sound, Alaska: 1997

Merlyn Schelske, Ken Hodges & David Schmid
Research on anadromous Dolly Varden char (Salvelinus malma) and cutthroat trout (Oncorhynchus clarki) in Prince William Sound has been hampered by the lack of basic information on their distribution. Earlier studies stated that there are only a few streams in Prince William Sound with these species, but after consultation with local residents, it appeared these fish were more widespread than previously believed. Given these uncertainties, we consulted local residents, government agencies, Native groups, and other...

Harbor seal monitoring in southern Kenai Peninsula fjords, Alaska: 1979 - 2007

Anne Hoover-Miller, Caroline Jezierski & Shannon Atkinson
Abstract: Harbor seals in Aialik Bay, a tidewater glacial habitat on the Kenai Peninsula, have been monitored since 1979 by field observations and remotely controlled video cameras. From 1980-2002 mean numbers of pups, adjusted for environmental conditions, declined 88% from 148 to 18 pups and remained stable through 2007 while seals counted during molt declined 82% from 801 seals to 141seals. Since 2002, numbers of molting seals have shown rapid growth of 21%/yr, coincident with...

Local questionnaire on historic size and harvest amounts of Katharina tunicata along the Kenai Peninsula, Alaska: 2003 - 2004

Anne Salomon & Jennifer Ruesink
We investigated the relative roles of natural factors and shoreline harvest leading to localized declines of the black leather chiton, Katharina tunicata, on the Kenai Peninsula, Alaska. Field surveys of the significant predictors of K. tunicata across 11 sites suggest that its current spatial variation is significantly related to human exploitation and sea otter predation. Traditional ecological knowledge further revealed that several benthic marine invertebrates (sea urchin, crab and clams) have declined sequentially, with reduced...

Fatty acid signatures for harbor seals and their prey in and around Prince William Sound, Alaska

Kathryn Frost, Sara Iverson, Lloyd Lowry, Mike Simpkins & Jay Ver Hoef
Study History: Restoration Project 01064 began in 1993 as a continuation of the initial post-spill study effort conducted as Marine Mammal Study Number 5 (Assessment of Injury to Harbor Seals in Prince William Sound, Alaska, and Adjacent Areas) in 1989 through 1991 and reclassified as Restoration Study Number 73 (Harbor Seal Restoration Study) in 1992. A final report was issued in 1994 for the combined Marine Mammal Study Number 5 and Restoration Study Number 73,...

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:...

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

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...

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) 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...

Wintering marine birds and mammals in the northern Gulf of Alaska: 1997 - 2001

Robert Day & Alexander Prichard
We examined the distribution and abundance of marine birds and mammals in the northern Gulf of Alaska over five seasons during the winters of 1997-2001. We recorded 58 species of seabirds, which were dominated numerically by five species; species-richness was greatest in October and May and lowest in December and March. Abundance was greatest in May and October, in the winters of 1997-1998 and 1999-2000, and, depending on the species, at the shelf-break front or...

Estimating forage fish distribution and abundance using aerial surveys in Prince William Sound, Alaska: 1995 - 1999

Brenda Norcross, Gary Borstad, Evelyn Brown & Stephanie Moreland
[Missing plankton, jellyfish, seine, trawl, bird and CTD data sets from this study] Sound Ecosystem Assessment (SEA) aerial surveys, 1995 - 1997: We show that aerial visual surveys are a cost-effective method to assess distribution and abundance of forage fish and seabirds and produce repeatable results with an acceptable level of error. We fulfilled our main objectives concerning forage fish assessment: 1) develop an appropriate survey design incorporating detection error, surveyor bias, and survey constraints,...

Registration Year

  • 2013
    47

Resource Types

  • Dataset
    47