124 research outputs found

    झींगा उत्पादन और खाघ सुरक्षा

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    कृपया पूरा लेख पढे

    Investigations on the stress effects of petroleum hydrocarbons on Metapenaeus dobsoni (Miers)

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    The present investigation has addressed the eflects of PHC contaminated culture medium on the morphology, physiology and behaviour of shrimps] The shrimp Metapenaeus dobsoni is an important member of the crustacean animal community abounding the oil contaminated benthic regions of Cochin backwater system. Since it is known that true pollutants can disrupt the sustainability of ecosystems by its eflect on species, populations and communities, a representative species was used for the study. The results discussed in this work is bound to help in understanding the ecotoxicant resistance that the animal may display under toxic conditions compared to aynamic steaay-state systems in natur

    Marine Biodiversity and Conservation in India

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    Term "Earth" is a misnomer for this planet which is covered by oceans for 70% of its area. Life on Earth began from the oceans and they hold of the biological diversity of the planet. In 1992 the United Nations held the Earth Summit in Rio de Janiero, Brazil to discuss the state of the environment and the living beings which populate the Earth, which was attended by 172 nation states. A parallel summit of 2400 NGOs was also held. From the deliberation of the Summit arose three legally binding documents: “Convention on Biological Diversity, UN Framework Convention on Climate Change” and “UN Convention to Combat Desertification” which was subsequently signed by most of the attending states and the guiding principles of which laid the foundation for future legislation in the signatory countries. The term biological diversity was coined by Dasmann in 1968. The definition of biodiversity was given by United Nations, 1992 at the Earth Summit is as follows: "The variability among living organisms from all sources, including, inter alia, terrestrial, marine and other aquatic ecosystems, and the ecological complexes of which they are part: this includes diversity within species, between species and of ecosystems." It includes genetic diversity, species diversity and ecosystem diversity

    Bumper landing of common dolphin fish Coryphaena hippurus at Sassoon Dock, Mumbai

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    On 29.10.05, an unprecedented twelve tons of common dolphinfish, Coryphaena hippurus was landed at Sassoon Dock by gill netters. The catch was made by 22 gill netters on a four day voyage, operating surface drift nets of mesh 80-120 rnrn upto 40 m depth of Murud, about 100 km south of Mumabi. The fish is sexually dimorphic with mature males having a pronounced bony crest in the frontal portion of the head

    Note on a regular fishery of mysid, Mesopodopsis orientalis in Mumbai waters - Field observation

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    Mesopodopsis orientalis is a common mysid of the backwaters and estuaries of both the east and west coast of India. Field observation of this mysid were carried out in the salt pan areas adjacent to mangroves close to Trombay landing centre

    Improving Communicative English Skills- Verbal

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    English is a global communicative medium, the knowledge of which opens doors to enhanced career opportunities. In the cent per cent literate Kerala, the ability to express oneself in English gives an added advantage to prospective employees and entrepreneurs. In a world which is increasingly more networked and technologically advanced, a good grasp of English is becoming increasingly imperative. A plethora of employment sectors, especially health, hospitality, tourism and education, which employ a maximum of women in Kerala require employees and entrepreneurs conversant with English. Primary and secondary schooling provides most with the opportunity to assimilate at least a very basic knowledge of English but as in the case of all languages it is the continued and enhanced usage of English which equips a person with the expertise which is required in practical situations. The role of Communicative English is to provide for such basic experience and confidence to develop good communication skills by multi-sensorial and multi-modal learning through non-conversational, conversational and theatrical exercises

    Fishery Biology in Conservation- How successful are we? In: ICAR Sponsored Winter School on Recent Advances in Fishery Biology Techniques for Biodiversity Evaluation and Conservation, 1-21 December 2018, Kochi.

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    Coastal human communities have been exploiting the sea as a source of food from time immemorial. Ancient communities have long had codes of conduct, largely undocumented, for judicial use of these bioresources. Some such practices are evident from the understanding of traditions of ancient hunter gatherer communities which have persisted up to modern times. The stone age Onge tribe of the Andamans practice discretion while hunting dugong and sea turtle and never harvest in excess. Examples of fishery conservation are several in Indian history. The edicts of Emporer Ashoka lays out rules for fishing. The fifth inscription of Delhi Shivliks bans activities of fishing and fish selling from Ashadh full moon to Paush full moon, on the days of Pusyankshtr in Paush, full moon, a day before full moon, no moon and both Pratipadas. Fishing permits find mention in Arthashastra of Kutilya as a means to conserve fishery resources

    झींगा पालन में फइले रोग तथा निदान

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    रोग निदान उपा

    Unprecedented landing of sharks by hook and lines at New Ferry Wharf, Mumbai

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    About twelve hand-operated hook and linersfrom southern Tamil Nadu regularly fish off Okha, Gujarat for pelagic sharks and these vessels land their catch at New Ferry Wharf.On 31.08.06, an unprecedented catch of about 3.2 t (300 Nos.) of sharks was landed by two hook and liners. The catch comprised of 270 numbers (90%) of Carcharhinus limbatus measuring 110-125cm in total length, 21 numbers (7%) of Galeocerdo cuvieri measuring 173-210 cm and 3 numbers (3%) of Carcharhinus sorrah measuring 115-128 cm. The weight range was 8-11 kg. The catch was sold for Rs. 2 lakhs at the rate of Rs. 60/kg
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