Sex ratio, spawning period, and size and age at maturity of sablefish Anoplopoma fimbria off northern California.
نویسندگان
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...
متن کاملReproductive life history of sablefish (Anoplopoma fimbria) from the U.S. Washington coast
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 کاملSize, Age, Sexual Maturity; and Sex Ratio in Ocean Quahogs, Arctica Islandica Linne, off Long Island, New York
Ocean quahogs. An:tico islandica. were collected offLong Island. New York. in 1978 for a determination ofsexuality and gonadal condition. A microscopic examination ofhistologically prepared tissues of133 clams. 19-60 mm in shell length. revealed that 36 were in an undifferentiated condition and could not be Sf<xed. Sexual differentiation was evident in 97 clams; ofthe latter. 69 were in two typ...
متن کاملAlterations of growth performance, hematological parameters, and plasma constituents in the sablefish, Anoplopoma fimbria depending on ammonia concentrations
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...
متن کاملexploring motivation and english test preparation strategies of iranian pre-university candidates during and at the end of test preparation period for konkur examination
the current study aimed at investigating the relationship between motivation and test preparation strategies (tpss) used by iranian pre-university students in their preparation period for the university entrance exam (uee). due to the importance of uee in iran, this study also attempted to show its impact on these two important variables. to this end, 100 pre-university students in an iranian p...
ذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: NIPPON SUISAN GAKKAISHI
سال: 1988
ISSN: 1349-998X,0021-5392
DOI: 10.2331/suisan.54.1333