Ovarian maturation, size at sexual maturity and spawning season of <i>Metapenaeopsis provocatoria owstoni</i> Shinomiya & Sakai, 2000 (Decapoda: Penaeidae)
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چکیده
منابع مشابه
reproductive season, maturation size (lm50) and sex ratio of metapenaeus affinis (decapoda: penaeidae) in hormozgan shrimp fishing grounds, south of iran
this study aimed to investigate the spawning season, length at first maturity (lm 50 ) and sex ratio of metapenaeus affinis in the shrimp fishing grounds of hormozgan province, west of the persian gulf, iran. samples were taken by the swept area method and trawl net with 2 cm mesh size in the cod end from january 2010 to february 2011. results showed that the sex ratio deviated from 1:1 and fem...
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 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 کاملDetermining Sexual Maturity of Broodstock for Induced Spawning of Fish
The external appearance of brood fish has long been used to assess the stage of sexual development. In some species, males change in appearance during the spawning season (e.g., vivid breeding colors in cichlids, hooked jaw in salmon, and roughened texture of the pectoral fins or head of cyprinids). These physical changes make it relatively easy to identify sexually mature males. However, secon...
متن کاملGonadal maturity assessment of butter catfish (Ompok bimaculatus) from major rivers and tributaries of India during spawning season
The present work focused on exploring reproductive biology of fish from different major rivers of India and their tributaries by comparing ovarian protein, fecundity, oocyte weight, oocyte diameter and condition factor during the spawning period. Significant correlation was found between reproductive parameters of fish in the major rivers and their tributaries. Among the parameters studied fecu...
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ژورنال
عنوان ژورنال: Crustacean Research
سال: 2020
ISSN: 0287-3478,2189-5317
DOI: 10.18353/crustacea.49.0_109