Assessing prey of pink salmon fry from zooplankton net catch data in Prince William Sound, Alaska: 2001
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. Th...
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dataone:df35a.47.11 2024-03-03T19:46:32+00:00 Assessing prey of pink salmon fry from zooplankton net catch data in Prince William Sound, Alaska: 2001 Richard Thorne Gary Thomas Gulf of Alaska ENVELOPE(-148.13,-146.83,60.78,60.0) BEGINDATE: 2001-04-18T00:00:00Z ENDDATE: 2001-06-15T00:00:00Z 2013-05-30T23:00:00Z https://search.dataone.org/view/df35a.47.11 unknown Gulf of Alaska Data Portal Neocalanus pink salmon survival Prince William Sound Ocean Survival Food limitation Zooplankton Ecosystem forcing functions EVOSTC Exxon Valdez Oil Spill Trustee Council Alaska Environmental Drivers Invertebrates and Algae Dataset dataone:urn:node:GOA 2024-03-03T19:06:06Z 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 highest at the beginning of the monitoring in mid-April, but progressively declined rather than increased as was seen in 2000. Highest biomasses were observed above the deep hole adjacent to Naked Island, and the lowest biomass within protected bays, including the locations of Esther and Main Bay hatcheries. The pattern of fish abundance and distribution was generally similar both years. Highest fish abundance was in the main basin and relatively deep. Abundance in the pink salmon out-migration corridor increased slightly over the spring, but was low overall. However, fish in the out-migration corridor showed strong near-shore orientation in 2001, a pattern not seen in 2000. The results of this monitoring should provide valuable insights into the complex environmental conditions that govern juvenile salmon survival. Such information is becoming more important as Alaska's salmon hatchery programs come under increasing scrutiny. Publications: Thorne, R.E. and G.L. Thomas. 2002. Assessing prey and competitor/predators of pink salmon fry, Exxon Valdez Oil Spill Restoration Project Final Report (Restoration Project 01452), Prince William Sound Science Center, Cordova, Alaska. Dataset Pink salmon Alaska Copepods Gulf of Alaska Data Portal (via DataONE) Gulf of Alaska Esther ENVELOPE(-57.700,-57.700,-61.917,-61.917) Thorne ENVELOPE(-60.700,-60.700,-62.933,-62.933) Main Bay ENVELOPE(-38.050,-38.050,-54.017,-54.017) ENVELOPE(-148.13,-146.83,60.78,60.0) |
institution |
Open Polar |
collection |
Gulf of Alaska Data Portal (via DataONE) |
op_collection_id |
dataone:urn:node:GOA |
language |
unknown |
topic |
Neocalanus pink salmon survival Prince William Sound Ocean Survival Food limitation Zooplankton Ecosystem forcing functions EVOSTC Exxon Valdez Oil Spill Trustee Council Alaska Environmental Drivers Invertebrates and Algae |
spellingShingle |
Neocalanus pink salmon survival Prince William Sound Ocean Survival Food limitation Zooplankton Ecosystem forcing functions EVOSTC Exxon Valdez Oil Spill Trustee Council Alaska Environmental Drivers Invertebrates and Algae Richard Thorne Gary Thomas Assessing prey of pink salmon fry from zooplankton net catch data in Prince William Sound, Alaska: 2001 |
topic_facet |
Neocalanus pink salmon survival Prince William Sound Ocean Survival Food limitation Zooplankton Ecosystem forcing functions EVOSTC Exxon Valdez Oil Spill Trustee Council Alaska Environmental Drivers Invertebrates and Algae |
description |
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 highest at the beginning of the monitoring in mid-April, but progressively declined rather than increased as was seen in 2000. Highest biomasses were observed above the deep hole adjacent to Naked Island, and the lowest biomass within protected bays, including the locations of Esther and Main Bay hatcheries. The pattern of fish abundance and distribution was generally similar both years. Highest fish abundance was in the main basin and relatively deep. Abundance in the pink salmon out-migration corridor increased slightly over the spring, but was low overall. However, fish in the out-migration corridor showed strong near-shore orientation in 2001, a pattern not seen in 2000. The results of this monitoring should provide valuable insights into the complex environmental conditions that govern juvenile salmon survival. Such information is becoming more important as Alaska's salmon hatchery programs come under increasing scrutiny. Publications: Thorne, R.E. and G.L. Thomas. 2002. Assessing prey and competitor/predators of pink salmon fry, Exxon Valdez Oil Spill Restoration Project Final Report (Restoration Project 01452), Prince William Sound Science Center, Cordova, Alaska. |
format |
Dataset |
author |
Richard Thorne Gary Thomas |
author_facet |
Richard Thorne Gary Thomas |
author_sort |
Richard Thorne |
title |
Assessing prey of pink salmon fry from zooplankton net catch data in Prince William Sound, Alaska: 2001 |
title_short |
Assessing prey of pink salmon fry from zooplankton net catch data in Prince William Sound, Alaska: 2001 |
title_full |
Assessing prey of pink salmon fry from zooplankton net catch data in Prince William Sound, Alaska: 2001 |
title_fullStr |
Assessing prey of pink salmon fry from zooplankton net catch data in Prince William Sound, Alaska: 2001 |
title_full_unstemmed |
Assessing prey of pink salmon fry from zooplankton net catch data in Prince William Sound, Alaska: 2001 |
title_sort |
assessing prey of pink salmon fry from zooplankton net catch data in prince william sound, alaska: 2001 |
publisher |
Gulf of Alaska Data Portal |
publishDate |
|
url |
https://search.dataone.org/view/df35a.47.11 |
op_coverage |
Gulf of Alaska ENVELOPE(-148.13,-146.83,60.78,60.0) BEGINDATE: 2001-04-18T00:00:00Z ENDDATE: 2001-06-15T00:00:00Z |
long_lat |
ENVELOPE(-57.700,-57.700,-61.917,-61.917) ENVELOPE(-60.700,-60.700,-62.933,-62.933) ENVELOPE(-38.050,-38.050,-54.017,-54.017) ENVELOPE(-148.13,-146.83,60.78,60.0) |
geographic |
Gulf of Alaska Esther Thorne Main Bay |
geographic_facet |
Gulf of Alaska Esther Thorne Main Bay |
genre |
Pink salmon Alaska Copepods |
genre_facet |
Pink salmon Alaska Copepods |
_version_ |
1792544846318141440 |