Determinate versus indeterminate fecundity in horse mackerel

No consensus has been reached yet on the question whether horse mackerel has a determinate or an indeterminate fecundity. This problem has been discussed based on three main criteria: (a) oocyte size frequency distribution, (b) the number of yolked oocytes in the ovary and (c) atresia. The analysis...

Full description

Saved in:
Bibliographic Details
Published in:Fisheries research 2008-02, Vol.89 (2), p.181-185
Main Authors: Gordo, L.S., Costa, A., Abaunza, P., Lucio, P., Eltink, A.T.G.W., Figueiredo, I.
Format: Article
Language:English
Subjects:
Fecundity type
growth
Horse mackerel
Marine
maturity
Reproductive strategy
saronikos gulf greece
Scomber
Trachurus trachurus
trachurus-trachurus l
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:No consensus has been reached yet on the question whether horse mackerel has a determinate or an indeterminate fecundity. This problem has been discussed based on three main criteria: (a) oocyte size frequency distribution, (b) the number of yolked oocytes in the ovary and (c) atresia. The analysis of the oocyte size frequency distribution showed that no distinct hiatus could be observed between pre-vitellogenic and vitellogenic oocytes. The number of yolked oocytes in the ovary was found higher in imminent spawning ovaries than in the pre-spawing, while a greater number of late yolked oocytes was found in recently spawning ovaries than in the pre-spawning. High incidence of atresia was also found in recently spawning (6–22%) and spent ovaries (over 29%). Those findings indicate that horse mackerel has most probably an indeterminate fecundity.
ISSN:0165-7836
1872-6763
DOI:10.1016/j.fishres.2007.09.024