आँध्रप्रदेश की वेलापवर्ती मात्स्यिकी संपदाएं

आँध्रप्रदेश की वेलापवर्ती मात्स्यिकी संपदाए

On the landing of bowmouth guitar fish Rhina ancylostoma at Visakhapatnam Harbour.

A small mechanized trawler which operated at a depth of 60 to 90 m landed a guitarfish identified as Rhina ancylostoma (Class : Elasmobranchii, Order : Rajiformes, Family : Rhinobatidae) at Vishakhapatnam Harbour On 15 July 2004,. The specimen had the characteristic spiky thorns over the eyes and on the back and shoulders with numerous white spots dorsally on fins, body and tail. The specimen landed is probably immature. The morphometric measurements of the specimen are described in this paper

Unusual heavy landing of Decapterus spp. at Visakhapatnam

The Indian scad, Decapterus russelli locally known as pillodugu forms an important seasonal fishing in the small mechanical trawlers of Visakhapatnam contributing about 0.6 to 8.2% of the total catch during the period from 1998 to 2002

On the strike bt seafood exporters at Visakhapatnam fisheries harbour in Andhra Pradesh

Visakhapatnam Fisheries Harbour Is one of the major fisheries harbours in India. Every day about 275 to 300 small mechanised boats, 150 to 175 Sona boats and 150 to 200 Mini and Mexican trawlers go out for fishing from this harbour. About 300 to 350 fish traders including local fisherwomen depend completely on this fish business for their livelihood. Each trader gets atleast Rs. 200/- per day

Prawn (Penaeus monodon) seed exploited along the coast of Visakhapatnam and Vizianagaram districts of east coast of Andhra Pradesh

The prawn business proved the best among all the businesses because of its profit earned on investment and high value in export trade. The demand for prawns is increasing day by day. Many prawn and acquaculture farms have come up in Visakhapatnam and Vizianagaram districts of Andhra Pradesh. To meet the demand the fishermen folk started exploitation of prawn seed from the surf zone

भारत की बाँगडे मात्स्यिकी की कुछ विशेषताएं

कृपया पूरा लेखा पढ

Seasonal juvenile fishery of oilsardine (Sardinella longiceps) at Jalaripeta, Visakhapatnam

The Indian oilsardine Sardinella longiceps, locally called as ‘burra kovallu’ or ‘Kerala kovallu’ forms a juvenile fishery during October - November along the Visakhapatnam coast. This seasonal juvenile fishery is the major source of income generation for the fishermen of Jalaripeta, Visakhapatnam

Some characteristics of the mackerel fishery in India

The recent increases in the catch of mackerel from the deeper waters of the Calicut - Cochin area indicate that the fish move down to deeper areas during summer due to the thermocline. Spreading of trawling to deeper waters, with the opening up of export market for cephalopods, can be the reason for the increased catch of mackerel by trawls. The most successful period of recruitment to the mackerel fishery coincides with upwelling (Mackerel form large shoals to feed on the plankton that is abundant due to upwelling, making surface fishery highly successful.) which guarantees abundance of stock during the period. Intensity of upwelling increases catchability and can result in a decline in spawning stock and recruitment. This can be one of the reasons for wide annual fluctuations in the catch of this resource

Stock assessment of mackerel in the Indian seas

Along both the coasts they start appearing in the catches when they are about two months old. But, along the west coast they are fiilly recruited to the fishery at an age of 6 months and along the east coast this happens at an age of 9 months. Bulk of the catches from west coast is by large seines of small meshes where young ones are liable to be caught and peak catches are from the size group of 140-149 mm. The major gear along the east coast is gill net with larger mesh and peak catches are from size group 190-199 mm. Along the west coast the estimated annual total mortality is 3.6. With an estimated M of 2.64 the fishing mortality F is 0.96 at an exploitation rate of 0.27 and E _^ estimated is 0.70

Bumper landing of juveniles of black pomfret Parastromateus niger at Visakhapatnam, Andhra Pradesh

About 39.5 t of juvenile black pomfret, Parastromateus niger (Bloch, 1795), was landed (Fig. 1 and 2), by 46 ringseine units operated at 20 m depth, at Mangamaripeta and Lawsons Bay landing centers, which are about 15 km from Visakhapatnam, during 23rd - 26th May, 2012. Black pomfret is locally called as nalla chanduva in Andhra Pradesh. Fishery for the black pomfret starts from post-monsoon months and dominates the pomfret fishery with maximum landings during November-February