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Maturation and spawning of Indian mackerel

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Relation http://eprints.cmfri.org.in/190/
 
Title Maturation and spawning of Indian mackerel
 
Creator Yohannan, T M
Abdurahiman, U C
 
Subject Fish breeding
 
Description The relation between body length and mature ovary is curvilinear whereas
a straight line relation exists between the weight of the fish and weight of
the ovary. Mackerel is a prolific breeder. Ova diameter studies indicated the
presence of 6 batches of ova in the mature ovary at a time, the first batch
ripening in a short period. Histological studies revealed the presence of early
perinucleolar oocytes even in partially spawned ovaries, suggesting a
continuous oogenesis and production of more than six batches of ova. Intensive
spawning takes place from April to July. Monsoon and upwelling with
consequent replenishment of nutrients effect a plankton bloom in the surface
waters causing a spurt in the reproductive output of mackerel resulting in
intensive spawning, reduced larval mortality and better recruitment.
 
Publisher CMFRI/ICAR
 
Date 1998
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/190/1/Article_06.pdf
Yohannan, T M and Abdurahiman, U C (1998) Maturation and spawning of Indian mackerel. Indian Journal of Fisheries, 45 (4). pp. 399-406.