Age at maturity, skipped spawning, and fecundity of female sablefish (Anoplopoma fimbria) during the spawning season
نویسندگان
چکیده
منابع مشابه
The innate immunity changes of the female anadromous hilsa shad, Tenualosa ilisha , during spawning and post spawning season
Tenualosa ilisha (Hamilton) is a valuable migratory fish belonging to the family Clupeidae and it is distributed in a wide area from the Persian Gulf to coasts of Pakistan and China’s southern sea. The aim of the present study was to investigate the changes occurring in innate immunity parameters during upstream migration and comparing them to those during post spawning. Sixty mature female hil...
متن کاملThe innate immunity changes of the female anadromous hilsa shad, Tenualosa ilisha , during spawning and post spawning season
Tenualosa ilisha (Hamilton) is a valuable migratory fish belonging to the family Clupeidae and it is distributed in a wide area from the Persian Gulf to coasts of Pakistan and China’s southern sea. The aim of the present study was to investigate the changes occurring in innate immunity parameters during upstream migration and comparing them to those during post spawning. Sixty mature female hil...
متن کاملGonadal maturity assessment of buttercatfish (Ompok bimaculatus) from Indian major rivers and tributaries during spawning season
The present work focused to explore reproductive biology of fish from different Indian major rivers and its tributaries by comparing ovarian protein, fecundity, oocyte weight, oocyte diameter and condition factor during the spawning period. Correlation between fish reproductive parameter of different Indian major rivers and its tributaries showed a significant relationship. Among studied parame...
متن کاملrelation between gonadal hormones and sexual maturity of female kutum rutilus frisii kutum during spawning season
abstract relation between sexual maturity and levels of two main steroid hormones in gonads, 17- estradiol (e2) and testosterone (t) were studied by using histological and radioimmunoassay in female kutum rutilus frisii kutum during spawning season of the southern caspian sea. the study was carried out from february to may 2008 using 105 migrated fish specimens catched from the river sefid-rood...
متن کاملThe logic of skipped spawning in fish
That sexually mature fish skip reproduction, especially in response to poor condition, has been documented in many species. We present results from an energy-allocation life history model that shed light on the underlying logic of skipped spawning, based on the Northeast Arctic stock of Atlantic cod (Gadus morhua). The model predicts that skipped spawning is a regular phenomenon, with up to 30%...
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ژورنال
عنوان ژورنال: Fishery Bulletin
سال: 2016
ISSN: 0090-0656
DOI: 10.7755/fb.114.1.8