Interannual and Spatial Feeding Patterns of Hatchery and Wild Juvenile Pink Salmon in the Gulf of Alaska in Years of Low and High Survival

2008 ◽  
Vol 137 (5) ◽  
pp. 1299-1316 ◽  
Author(s):  
Janet L. Armstrong ◽  
Katherine W. Myers ◽  
David A. Beauchamp ◽  
Nancy D. Davis ◽  
Robert V. Walker ◽  
...  
2008 ◽  
Vol 137 (3) ◽  
pp. 927-939 ◽  
Author(s):  
Alison D. Cross ◽  
David A. Beauchamp ◽  
Katherine W. Myers ◽  
Jamal H. Moss

2012 ◽  
Vol 69 (5) ◽  
pp. 955-969 ◽  
Author(s):  
Sara E. Miller ◽  
Milo Adkison ◽  
Lewis Haldorson

Water column stability has been hypothesized to affect growth and ultimately survival of juvenile fish. We estimated the relationships between stability and the growth, condition, and marine survival of several stocks of pink salmon ( Oncorhynchus gorbuscha ) within Prince William Sound (PWS), Alaska, USA, and the northern coastal Gulf of Alaska (GOA) shelf. There was a stronger correlation among the biological parameters of the fish than between the biological parameters and physical conditions. While stability and fish condition during early marine residence in PWS were important to year-class survival, stability of the water column that juveniles experienced as they migrated to the open waters of the GOA did not play a key role in determining survival to adulthood. Below-average stability just prior to capture within PWS combined with positive fish condition was related to increased year-class survival. Our results are similar to previous studies that concluded that slower and weaker development of stratification with a deeper mixed layer depth may be important for juvenile pink salmon survival in PWS.


2005 ◽  
Vol 52 (1-2) ◽  
pp. 347-370 ◽  
Author(s):  
Alison D. Cross ◽  
David A. Beauchamp ◽  
Janet L. Armstrong ◽  
Mikhail Blikshteyn ◽  
Jennifer L. Boldt ◽  
...  

2002 ◽  
Vol 59 (10) ◽  
pp. 1626-1638 ◽  
Author(s):  
Thomas C Kline, Jr. ◽  
T Mark Willette

Nitrogen and carbon mass and stable isotope composition among cohorts of Pacific salmon (Oncorhynchus spp.) released from Prince William Sound, Alaska, hatcheries in 1994 varied widely, suggesting a range in early marine feeding patterns. Analyses consisted of whole-body stable carbon and nitrogen mass and stable isotope composition of selected release-date cohorts that had been identified by implanted coded wire tags (CWT). Nitrogen isotopic and mass shifts suggested that the initial protein pool within individual fish was replaced at different rates among cohorts. There was a notable difference in carbon source dependency among hatcheries. Salmon from the hatchery closest to the Gulf of Alaska had a 13C-depleted carbon signature consistent with Gulf carbon, whereas salmon from the other hatcheries had Sound signatures. Differences in early marine feeding histories among 1994 hatchery-release-date cohorts reconstructed from the stable isotope composition of fry bore no relationship to marine survival pattern. Varied survival rates of 1994 Prince William Sound hatchery salmon were more likely related to the fry size at time of release, the observed differences in growth rate among release cohorts, and predation refuge effects of pen-rearing.


2019 ◽  
Vol 165 ◽  
pp. 348-363 ◽  
Author(s):  
Kevin A. Siwicke ◽  
Jamal H. Moss ◽  
Brian R. Beckman ◽  
Carol Ladd
Keyword(s):  

1966 ◽  
Vol 23 (9) ◽  
pp. 1403-1410 ◽  
Author(s):  
H. T. Bilton ◽  
S. A. M. Ludwig

On scales of pink (Oncorhynchus gorbuscha), chum (O. keta), and possibly sockeye (O. nerka) salmon caught by Canadian research vessels throughout the Gulf of Alaska at various times of the year, the annual ring began to form sometime between early November and January. Many of the sockeye and pink salmon had completed the annulus sometime in December or January, whereas the chum salmon completed their's later, in February or March. For both sockeye and chum salmon, scales of younger fish tended to commence new growth at an earlier date than did those of older fish.


2005 ◽  
Vol 52 (1-2) ◽  
pp. 247-265 ◽  
Author(s):  
Janet L. Armstrong ◽  
Jennifer L. Boldt ◽  
Alison D. Cross ◽  
Jamal H. Moss ◽  
Nancy D. Davis ◽  
...  

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