Gonadal development of triploid Atlantic Cod Gadus morhua.

Abstract:

:During their third and fourth years of life, triploid Atlantic cod Gadus morhua females exhibited diminished ovarian development at both macroscopic and microscopic levels, with significantly lower gonado-somatic indices (I(G)) and higher carcass yields (Y(C)) than diploid females during spawning periods. In contrast, diploid and triploid testes were indistinguishable through macroscopic and histological assessment. No significant differences were found in male I(G) or Y(C) in relation to ploidy, with the exception of a higher Y(C) for triploids during the first of the two monitored spawning seasons. As a result of suppressed oogenesis, triploid female G. morhua, but not triploid males, can be used to eliminate sexual maturation in this species and advance the development of the G. morhua aquaculture industry.

journal_name

J Fish Biol

journal_title

Journal of fish biology

authors

Feindel NJ,Benfey TJ,Trippel EA

doi

10.1111/j.1095-8649.2011.02955.x

subject

Has Abstract

pub_date

2011-06-01 00:00:00

pages

1900-12

issue

7

eissn

0022-1112

issn

1095-8649

journal_volume

78

pub_type

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