Relative Abundance Of Fishes Caught By Bagnet Around Calagua Island (Lamon Bay) With Notes On Their Biology


Rosita R. Calvelo
Salud R. Ganaden
Luisa C. Tuazon

Fisheries Resources Research Division
Bureau of Fisheries and Aquatic Resources

Abstract

This paper provides information on the abundance, catch and size compositions, CPUE, and sex and maturity stages of fishes caught by bagnet around Calagua Island, Lamon Bay, at different monsoon seasons based on data gathered from 1978 to 1980.

The bagnet catch, during the southwest monsoon, is composed mostly of small and immature fishes, such as anchovies, Stolephorus spp.; red-sea harder, Emmelichthys sp.; roundscads, Decapterus spp.; big-eyed scad, Caranx crumenophthalmus; yellow-striped crevalle, Selaroides leptolepis; mackerels, Rastrelliger spp.; sardines, Sardinella spp., and round herring, Dussumieria sp. During the northeast monsoon and tradewinds, the catch consists of the same species but of bigger size and most are sexually mature.

The CPUE values recorded during the study period were 540 kg per boat (in August), 971 kg per boat (in July) 529 kg per boat (in October), and 362 kg and 358 kg per boat (in April). The peak fishing season, therefore, for bagnet in the area is during the southwest monsoon, from July to September.


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