Mackerel fishery of the Calicut area and its fluctuations during the seasons from 1980-81 to 1985-86

Yohannan, T M and Balasubramanian, K K (1991) Mackerel fishery of the Calicut area and its fluctuations during the seasons from 1980-81 to 1985-86. Journal of the Marine Biological Association of India, 33 (1&2). pp. 246-254.

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Abstract

After relatively good mackerel fishery at Calicut in 1980-81 it touched the lowest figure in 1983-84. Improvement was noticed subsequently. Recruitment to the fishery is almost completed by September. Mainstay of recruitment at Calicut is from the products of spawning in June and August. A good annual rainfall is found to be beneficial to the fishery, but the rainfall and catch in September is found to have an inverse relation. Catch in 1970-71 is found to be well above equilibrium level. The magnitude of spawning stock in April-June period is found to have direct relation to the total catch of that season. In general, mackerel fishery is on the decline at Calicut. There are indications that the current fishing pressure on the population is more than optimum.

Item Type:	Article
Uncontrolled Keywords:	Mackerel; Calicut
Subjects:	Pelagic Fisheries > Mackerel fishery Marine Fisheries
Divisions:	CMFRI-Kochi > Marine Capture > Pelagic Fisheries Division Subject Area > CMFRI > CMFRI-Kochi > Marine Capture > Pelagic Fisheries Division CMFRI-Kochi > Marine Capture > Pelagic Fisheries Division Subject Area > CMFRI-Kochi > Marine Capture > Pelagic Fisheries Division
Depositing User:	Mr. Arun Surendran
Date Deposited:	14 Jun 2010 08:16
Last Modified:	09 Sep 2015 15:09
URI:	http://eprints.cmfri.org.in/id/eprint/850

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