Serial spawning and batch fecundity of Merluccius capensis and M. paradoxus

Authors
Osborne, RF Melo, YC Hofmeyr, MD Japp, DW
Citation
Rf. Osborne et al., Serial spawning and batch fecundity of Merluccius capensis and M. paradoxus, S AFR J MAR, 21, 1999, pp. 211-216
Citations number
20
Categorie Soggetti
Aquatic Sciences
Journal title
SOUTH AFRICAN JOURNAL OF MARINE SCIENCE-SUID-AFRIKAANSE TYDSKRIF VIR SEEWETENSKAP
ISSN journal
02577615 → ACNP
Volume
21
Year of publication
1999
Pages
211 - 216
Database
ISI
SICI code
0257-7615(1999)21:<211:SSABFO>2.0.ZU;2-W
Abstract
Histological analysis of the ovaries and the presence of multiple modes in oocyte size frequency distribution of Cape hake Merluccius capensis and M. paradoxus indicates that they are serial spawners. Batch fecundity, calcula ted by means of the "hydrated oocyte method", was positively correlated to ovary-free fish mass and total fish length. The mean relative fecundity (ov ary-free mass) of M. capensis and M, paradoxus was 160 +/- 12 and 306 +/- 2 5 eggs.g(-1) respectively.