Status of spiny lobster fishery and farming prospects in India

Lobsters are luxury seafood with high nutritional value leading to great demand from national and international premium consumer sector. Lobster fishery in India is small scale and mostly the resources are harvested from shallow water. In deeper waters, lobsters are mostly incidental catch in gears targeting other fishery resources. Based on the estimated marine fish landings database of the Fishery Resource Assessment Division, ICAR-CMFRI on gearwise species composition in different maritime states for the period 2017-2019, and data gathered from live lobster holding center located in Thiruvananthapuram district of Kerala, status of lobster fishery in India is analysed and reporte

Unusual landings of Aluterus monoceros (Linnaeus, 1758) along Vizhinjam coast

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

First report of Spotted reef crab off Vizhinjam coast

Carpilius maculatus (Linnaeus, 1758), commonly known as ‘Seven-eleven crab’, ‘Spotted reef crab’, ‘Dark finger coral crab’, or ‘Large spotted crab’ is a member of the family Carpiliidae. One male specimen of the spotted reef crab C. maculatus measuring 130 mm in carapace width was caught by a bottom set gill net along with Portunus sanguinolentus from the rocky area in Vizhinjam coastal waters

शूली महा चिंगटों के प्रजनन और स्फूटनशाला प्रौद्योगिकी के विकास में नई प्रगतियाँ

कृपया पूरा लेखा पढ

Hatchery Production of Shrimp Seeds

T he pioneering efforts of Hudinaga in the successful spawning of Penaeus japonicus under controlled conditions and their subsequent rearing upto the juvenile stage have paved way for the large scale hatchery production of seed of penaeid prawns for aquaculture. There are two basic hatchery techniques for mass rearing of larvae of penaeid prawns - Japanese techniques and Galveston technique. These techniques have been appropriately modified to suit different geographical and climatic conditions and different species of prawns used for aquaculture. Thus m any gradations between these two techniques have been noticed in different parts of the world. Som etim es combinations o f these two techniques have also been used

Rare occurrence of the Torpedo shrimp

Torpedo shrimps Kishinouyepenaeopsis maxillipedo (synonym of Parapenaeopsis maxillipedo) occur along the Indo-West Pacific, Sri Lanka, Malaya and Australia. In India, K. maxillipedo has been reported from Gujarat, Andhra Pradesh, Tamil Nadu, Puducherry, Andaman Islands and recently from Kerala. On 8th July 2019 seven specimens of Torpedo shrimps were found in the gill net catch at Vizhinjam, Thiruvananthapuram district, on the south west coast of Keral

Shrimps

Among edible crustaceans (shelled organism s) shrimp is considered as a highly valuable commodity. The great economic use of this resource for domestic and export purposes has led to over exploitation of most of the major shrimp stocks of the world. According to World Fishery Statistics, the global shrimp production, showing a rather slow annual growth rate of 4.5 to 10% during 1981-87 period, has been stagnating at about 2.5 million tonnes per year during 1988-90 period. The Indian ocean accounts for an average of about 3.6 lakh tonnes (17%) annually, of which nearly 65% com es from the Eastern region. While the fishery of this region showed an upward trend during the past few years mainly due to increased landings in Indonesia, Bangladesh and East coast of India, the fishery of Western Indian Ocean remained more or less steady at about 2.3 lakh tonnes. From the present level of shrimp production against the effort input it is universally believed that further increase in production of this resource from the conventional shrimp grounds is not possible to any appreciable extent. This being the case, development of deep-sea shrimping and aquaculture of shrimp has been given considerable stress as alternate means of augmenting production through out the world

Present Status of Exploitation of Shrimp Resource along the East Coast of India with special reference to Kakinada Coast

Marine fish production in India increased steadily from a meagre 0.5 million t in 1950 to 2.69 million t in 1997. During 1990's the annual average marine fish production in India was 2.33 million t and out of this Andhra Pradesh contributed 145,848 which formed 6.27%. Andhra Pradesh ranked 6th next to Kerala, Gujarat, Maharashtra, Tamil Nadu and Karnataka. Among the important fishery resources along the Andhra Pradesh coast, penaeid and non-penaeid shrimps constitute 9.2% and 2.7% in the total production. Among the nine coastal districts, East Godavari tops in marine fish production contributing 36.0%. Muthu et al., (1975) and Narasimham et al,(1979) have studied the trawl fishery of the Kakinada coast in detail. Rao (1975, 1979, 1980, 1985,1987, 1988 a,b,c, 1989, 1990,1993 and 1994) and Lalitha Devi (1986, 1987 and 1988) have studied the shrimp fishery in general and the biology and stock assessment of the component species of the shrimp resource in detail along the Kakinada coast. No report has been made on the recent developments on the shrimp fishery along the Kakinada coast and the present paper attempts to bring out the present status of the shrimp fishery resource along the East Coast in general and the Kakinada coast in particular

Effects of binders on stability and palatability of formulated dry compounded diets for spiny lobster Panulirus homarus (Linnaeus, 1758)

Experimental trials were conducted to formulate a palatable dry compounded diet for subadults of the spiny lobster Panulirus homarus in the size range 103-114 mm, using ingredients derived from natural sources in a desirable combination of 54.5% crude protein. Since the diet exhibited low stability, series of experiments were conducted further using different combinations of binders sourced from plant as well as synthetic origin to derive a stable and palatable pellet diet. Among 35 test diets formulated, diet with good palatability and maximum pellet stability (85.55 ± 5.94% for 8 h) were identified as the pellets made with binders in combination of sodium alginate (3%), ‘stick on’ a commercial phytochemical (1%) and agar agar (3%). This combination of binders was found suitable for artificial pelleted diet prepared for subadults of P. homarus

Lobsters

Among marine crustaceans, lobsters are the most highly priced ones and of significant commercial interest in many countries. Due to their increasing demand as a favourite of epicurean gourmets, lobsters have captured excellent markets in developed countries. Lobster fishing, therefore, is practised on intensive scale throughout the world and a stage has com e that most of the traditional lobster stocks are under heavy exploitation now. According to World Fishery Statistics, the annual lobster production of the world during 1981 - 1990 period ranged from 1.8 lakh tonnes in 1982 to 2.3 lakh tonnes in 1989, thereby showing an increase of only 28% over the years. The average annual production of about 2.1 lakh tonnes of lobsters, which included 1.9 lakh tonnes of spiny lobsters and allied species (92%) and 0.2 lakh tonnes of squat lobsters (8 %), form ed 6 % of the world crustacean landings from the marine sector. The contribution of the form er group from Indian Ocean region for the same period was about 60,000 tonnes on an average of which over 70% was recorded in the Western Indian Ocean mainly from the coasts of South Africa, Om an and Republic of Yemen. India landed an average of about 24,000 tonnes, of which nearly 90% came from the west coast