Fishery and certain biological aspects of Stolephorus devisi (Whitley) at Cochin, west coast of India

Stolephorus devisi is the most abundant of the six white bait species landed at Cochin and contributes upto 55.8% of the white bait catch. Peak landings were noticed during April•May and November•December. The individuals in the landings ranged from 50 to 98 rrun in total length. The species attained a total length of 88mm at the end of frrst (ear. The length-weight relationship was found to be W=O.()()()()1236356 L2.98 for males and W=O.OOOOO5873346 L3.O for females. The length at first maturity for the species was 56 mm

Night fishing for oceanic tunas at Visakhapatnam

Tunas comprising of several genera and species are emerging as an important pelagic resource of Visakhapatnam. Of the several species contributing to the tuna fishery of the region, the yellow fin tuna (Thunnus albacares) forms the major component of the catc

New record of the stromateoid fish Psenopsis intermedia (Piontrovskiy, 1987) from Indian waters

The occurrence of Psenopsis intermedia off Malpe, in the Arabian sea, which is not recorded so far from the Indian waters is reported. The comparison of the mersitic and morphometric characters of the specimens with the holotype and paratype of the species is presented

Heavy landings of mackerel by trawlers at Mangalore Bunder

The Indian mackerel, Rastrelliger kanagurta generally comprises less than 2% of the total annual trawl catch. But unusually heavy landings of mackerel, upto one tonne per unit formed nearly 30% of the total trawl catch during May 1995(18th - 27th)

First record of the goatfish, Parupeneus heptacanthus Lacepède, 1801 (Family: Mullidae) at Visakhapatnam Fisheries Harbour

On the13th of July 2009, unusual heavy landings of Aluterus monoceros (unicorn leather jacket) of the family Monacanthidae were observed along the coast, from Vizhinjam to Marianadu about 40 km north of Vizhinjam (Fig. 1). These fishes, locally known as “komban clathy” or “mara clathy” are rarely observed in large numbers in the landings at Vizhinjam which has become a subject of surprise to the fishermen. This has been the first incident of such a heavy landing of bigger sized unicorn leather jacket in this area

On the first Mud Crab fattening farm in Dakshina Kannada, Karnataka

Culture practices along the Karnataka coastal zone are restricted to only shrimp farming. Apart from shrimp, the potential candidate species suitable for farming along this part of the coastal area is the mud crab Scylla tranquebarica

Small-scale tuna fishery of the Western Bay of Bengal

Fishing for the yellowfin tuna in the western part of the Bay of Bengal by traditional Indian coastal fisherfolk is a recent development. Tuna fishing has reached the status of a major industry with several private fishery stakeholders actively involve

First record of threadfin bream, Nemipterus zysron (Bleeker, 1857) from Andhra Pradesh Coast

Threadfin breams, a major demersal resource of Visakhapatnam region is represented by a single genus Nemipterus and is fished extensively by trawlers. Five species of this genus viz., Nemipterus mesoprion, N. japonicus, N. delagoae, N. Iuteus and N. tolu generally contribute to the fishery of the region. A sixth species, Nemipterus zysron was collected and identified from the catch at Visakhapatnam Fishing Harbour on 15th July 2008

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Fishery and Biological Aspects of Yellowfin Tuna Thunnus albacares along Andhra Coast, India

A potentially rich fishing ground for yellowfin tuna Thunnus albacares discovered off northern Andhra Pradesh along the east coast of India at depths of 200m and more is being gainfully exploited by the local fishers since 2002. Hooks and lines as well as trolls operated mostly from non-mechanized crafts (catamaran) are the major exploitation methods used. The mechanized sector ventured into oceanic tuna fishing during 2006 with the conversion of a few existing mechanized trawlers into long liners and for large scale commercial exploitation of yellowfin tuna in this region. The average annual (2004-2006) landing of tuna by the catamaran at Visakhapatnam was 1,515t. A wide size group represented the fishery with the fork length of T.albacares measuring from 25 cm to 190 cm with major modes at 90 and 130 cm. Fishes above 80 cm were found to be mature and the size at first maturity was estimated to be between 90-95 cm. Males were dominant with a male: female ratio of 1: 0.58. The length weight relationship is given by the formula W= 0.008634L 3.12. Food contents consisted of a variety of prey animals. Fishes (bony pelagic fishes), crustaceans (crabs and shrimps) and molluscs (squids) were the major prey groups. The fishery is still in its infancy and more research has to be carried out to understand its biology and formulate proper management measures to sustainably harvest this stock