scholarly journals Age at maturity, skipped spawning, and fecundity of female sablefish (Anoplopoma fimbria) during the spawning season

2016 ◽  
Vol 114 (1) ◽  
pp. 89-102 ◽  
Author(s):  
Cara J. Rodgveller ◽  
James W. Stark ◽  
Katy B. Echave ◽  
Peter-John F. Hulson
Keyword(s):  
Spawning Season ◽  
Age At Maturity ◽  
Anoplopoma Fimbria ◽  
Skipped Spawning

Effect of an External Tag on Growth of Sabiefish (Anoplopoma fimbria), and Consequences to Mortality and Age at Maturity

1990 ◽  
Vol 47 (8) ◽  
pp. 1551-1557 ◽  
Author(s):  
Gordon A. McFarlane ◽  
Richard J. Beamish
Keyword(s):  
Growth Rate ◽  
Mortality Rate ◽  
Fish Growth ◽  
Age At Maturity ◽  
Potential Response ◽  
Anoplopoma Fimbria ◽  
Juvenile Mortality ◽  
Individual Fish ◽  
Males And Females

Tagged juveniles from a strong year-class of sablefish (Anoplopoma fimbria) were sampled for 9 yr Tagged females were approximately 6 cm larger than untagged females at 50% maturity. Males showed little difference because of their slower growth rate. Untagged males and females matured one and 2 yr earlier than tagged males and females. From this same year-class length-at-age of untagged males and females was significantly larger than for tagged and recaptured fish. Untagged males and females were 6.5 and 8 cm larger than tagged fish by age seven. Smaller tagged fish were recaptured at lower rates than larger tagged fish, indicating that slower growth reduced recapture percentage, which we believe indicates a higher mortality rate. Because smaller size was associated with increased mortality and tagged fish grew slower than untagged fish, we concluded that tagged fish had higher rates of mortality than untagged fish. The increased age and size at 50% maturity and the increased juvenile mortality indicated the potential response of a population of sablefish and possibly other species to a reduction in individual fish growth. If our results apply to other species and other types of tags, investigators should be cautious in extrapolating from tagged to untagged populations.

Transitioning from algae to clay as turbidity agents: Timing, duration, and transition rates for larval sablefish (Anoplopoma fimbria)

Aquaculture ◽  
2021 ◽  
Vol 541 ◽  
pp. 736825
Author(s):  
Jonathan S.F. Lee ◽  
Melissa L. Pierce ◽  
Rachel S. Poretsky ◽  
Matthew A. Cook ◽  
Barry A. Berejikian ◽  
...  
Keyword(s):  
Transition Rates ◽  
Anoplopoma Fimbria

scholarly journals Status of sablefish, Anoplopoma fimbria , aquaculture

2021 ◽  
Author(s):  
Frederick William Goetz ◽  
Bernadita F. Anulacion ◽  
Mary R. Arkoosh ◽  
Matthew A. Cook ◽  
Walton W. Dickhoff ◽  
...  
Keyword(s):  
Anoplopoma Fimbria

Temporal Variation in Growth Rate and Age at Maturity of Male Painted Turtles, Chrysemys picta

1993 ◽  
Vol 130 (2) ◽  
pp. 314 ◽  
Author(s):  
Nat B. Frazer ◽  
Judith L. Greene ◽  
J. Whitfield Gibbons
Keyword(s):  
Growth Rate ◽  
Temporal Variation ◽  
Chrysemys Picta ◽  
Age At Maturity ◽  
Painted Turtles

Temperature and hunger mediate sablefish (Anoplopoma fimbria) feeding motivation: implications for stock assessment

2004 ◽  
Vol 61 (2) ◽  
pp. 238-246 ◽  
Author(s):  
Allan W Stoner ◽  
Erick A Sturm
Keyword(s):  
Water Temperature ◽  
Food Deprivation ◽  
Stock Assessment ◽  
Effective Area ◽  
Activity Level ◽  
Anoplopoma Fimbria ◽  
Feeding Motivation ◽  
Population Sizes ◽  
Increasing Temperature ◽  
Olfactory Cue

Laboratory experiments were conducted to test the hypothesis that temperature (2–8 °C) and recent feeding history (1–6 days of food deprivation) influence feeding motivation and attacks on baits by adult sablefish (Anoplo poma fimbria). Activity level after introduction of a bait-related olfactory cue increased with increasing water temperature and food deprivation. Fish at the lowest temperature (2 °C) attacked and consumed fewer squid baits (33–71%) than those at higher temperatures (100% at 8 °C). Baits were frequently inspected or handled multiple times before consumption in low temperatures, and time to attack (seconds to >40 min), time to consume, and time to handle baits (2–20 s) all decreased significantly with increasing temperature, with some temperature × feeding history interactions. The total ration consumed increased (<1–8% of body weight) with increasing water temperature. The observed variability in activity and feeding motivation in sablefish may have a large impact on the effective area of baited gear but is rarely considered in stock assessment models. In particular, population sizes based upon baited gear surveys may be underestimated in conditions where temperature is low, natural prey density is high, or where other environmental variables reduce feeding motivation.

scholarly journals Morphometric Relationship, Growth, and Condition Factor of Flyingfish, Hirundicththys oxycephalus during spawning season

2017 ◽  
Vol 89 ◽  
pp. 012001 ◽  
Author(s):  
Friesland Tuapetel ◽  
Natsir Nessa ◽  
Syamsu Alam Ali ◽  
Sudirman ◽  
B.G. Hutubessy ◽  
...  
Keyword(s):  
Condition Factor ◽  
Spawning Season
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