Details:

Alternative Title:
Size Decreases in Adult Chum Salmon
Personal Author:
Helle, Jack ; Hoffman, Margaret
Helle, Jack ; Hoffman, Margaret Less -
Corporate Authors:
United States. National Marine Fisheries Service ; Alaska Fisheries Science Center (U.S.) ; Auke Bay Laboratory (Juneau, Alaska)
United States. National Marine Fisheries Service ; Alaska Fisheries Science Center (U.S.) ; Auke Bay Laboratory (Juneau, Alaska) Less -
NOAA Program & Office:
NMFS (National Marine Fisheries Service) ; AFSC (Alaska Fisheries Science Center)
NMFS (National Marine Fisheries Service) ; AFSC (Alaska Fisheries Science Center) Less -
Description:
Long-term studies of age and growth of chum salmon (Oncoryhynchus keta) conducted by members of the Auke Bay Laboratory (ABL) over the past 20 years show significant declines, particularly during the last decade, in the size of returning adult chum salmon. Long-term observations of size-at-maturity of salmon can be considered indicators of the ocean environment, reflecting the physical and biological characteristics of the sea experienced by the species over time. In addition density-dependent factors such as competition for food by the same species or competing species can also be thought to influence size-at-maturity.
Series:
AFSC Quarterly Report : April, May, June ; 1993
Document Type:
Technical Report
Rights Information:
Public Domain
Compliance:
Submitted
Main Document Checksum:
[+]
urn:sha256:30280d61397929d9dce8ac73b85db4eaa9bcada7f6fd9336ac5ad512f3138e42
File Type:

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