Aging discrepancy related to asymmetrical otolith growth for sablefish Anoplopoma fimbria in northern California.
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چکیده
منابع مشابه
Larval and Juvenile Growth of Sablefish, Anoplopoma Fimbria, as Determined from Otolith Increments
BANKS, R. C., AND R. L. BROWNELL. 1969. Taxonomy of the common dolphins of the eastern Pacific OCE'an. J. Mammal. 50:262-271. BOWERS. C. A.. AND R. S. HENDERSON. 1972. Project Deep Ops: Deep object recovery with pilot and killer whales. NUC TP 306, 86 p. Naval Undersea Center. San Diego, CA 92152. CHASE, T. E. 1968. Sea floor topography of central eastern Pacific Ocean. Bur. Commer. Fish. Circu...
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Juvenile Anoplopoma fimbria (mean length 16.8 ± 2.2 cm, and mean weight 72.8 ± 5.4 g) were exposed for 2 months with different levels of ammonia (0, 0.25, 0.50, 0.75, 1.00, and 1.25 mg/L). Growth performances such as daily length gain, daily weight gain, condition factor, and hepatosomatic index were significantly decreased by ammonia exposure. Hematological parameters such as red blood cell (R...
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Sablefish (Anoplopoma fimbria) is a marine groundfish that supports valuable fisheries in the North Pacific Ocean and holds promise for marine aquaculture. Limited information is available, however, about its reproductive biology. This study aimed to characterize the complete reproductive cycle, including seasonal changes in gonadal development (macroscopic and histological), plasma sex steroid...
متن کاملFish Size and Exposure to Air: Potential Effects on Behavioral Impairment and Mortality Rates in Discarded Sablefish
—Fisheries models often assume that discarded undersized fish and target species will survive and contribute to future recruitment and yield. If smaller fish are more susceptible to capture stressors than larger fish, then the assumption that smaller discards would contribute to recruitment may not be true. We tested the hypothesis that small sablefish Anoplopoma fimbria show more behavioral im...
متن کاملSpeci¢c Merluccius otolith growth patterns related to phylogenetics and environmental factors
A comparative morphological study was performed on the otolith growth patterns of 11 species of the genus Merluccius. The otolith growth pattern, based on the radius of the ¢rst eight growth increments (GI) from the otolith core, was determined from transverse sections of sagitta otoliths.The structure and periodicity of the GI were identi¢ed based on previous knowledge. Two cluster analyses we...
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ژورنال
عنوان ژورنال: NIPPON SUISAN GAKKAISHI
سال: 1988
ISSN: 1349-998X,0021-5392
DOI: 10.2331/suisan.54.27