Open AccessOocyte Growth in the Striped Mullet Mugil cephalus L. Maturing at Different Salinities
Author(s) -
Tamaru Clyde S.,
Lee ChengSheng,
Kelley Christopher D.,
Miyamoto Garret,
Moriwake Aaron
Publication year - 1994
Publication title -
journal of the world aquaculture society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.655
H-Index - 60
eISSN - 1749-7345
pISSN - 0893-8849
DOI - 10.1111/j.1749-7345.1994.tb00810.x
Subject(s) - mugil , spawn (biology) , biology , mullet , vitellogenesis , brackish water , oocyte , fishery , salinity , seawater , zoology , ecology , fish <actinopterygii> , embryo
Abstract Profiles of oocyte growth were obtained from female striped mullet Mugil cephalus L. held in salinities ranging from fresh water to seawater during two consecutive spawning seasons (1988–1990) in Hawaii. Females underwent vitellogenesis at all salinities (i.e., 32–35, 13–20, and 0%‰) tested. Females maturing in fresh water exhibited a slower rate of oocyte growth, and a significantly lower number completed vitellogenesis. All females were induced to spawn in full seawater. The number of fertilized eggs per spawning was highest from females maturing in brackish water. More females were able to be induced to spawn twice in brackish water during the 1989–1990 season than in fresh or seawater. The results from the current investigation suggest that salinities ranging from 13–35 ppt are adequate for ovarian maturation in captive striped mullet females.