आरोग्याची देखरेख आणि रोगांचे व्यवस्थापन

The culture of marine finfish in cages was successfully initiated in Japan in 1950s and in South East Asia during 1970s. In the initial years of cage culture, fish seed for culture was collected from the wild. Recent developments in hatchery technology and seed production of commercially important marine finfish and shellfish have ensured the continuous supply of seed for mariculture practices. The disease control and health management are important issues for sustainable aquaculture. The disease occurrence causes major economic loss to aquaculture farmers. Production costs often increase due to disease outbreaks and treatment procedures followed to overcome death of fishes during culture. In natural aquatic environments, disease problems are unnoticed as diseased/weak/stressed fishes are easily removed by predators and very few occurrences of disease outbreaks are reported. Moreover in natural environment fish are not crowded as in captive culture conditions, which ultimately causes stress in fishes frequently

भारतातील आणि महाराष्ट्रातील पिंजऱ्यातील मत्स्यपैदास : सद्य आणि भविष्यातील प्रगतीच्या संधी

Sea farming is a popular area of aquaculture practice throughout the world. In Asian countries, it is rapidly growing to meet the increasing demand of high value marine fishes. Although India has a tradition of aquaculture, sea farming ventures on commercial scale were lacking. In this context, Central Marine Fisheries Research Institute started open sea floating cage culture activities in 2006-07 with Department of Animal Husbandry, Dairying and Fisheries (DAHD&F), Government of India assistance. Indigenous cage of 15 m diameter was fabricated following Norwegian open sea floating cage design and launched at Visakhapatnam. There was a technical setback with the design of cage, and consultation with Indian Institute of Technology, West Bengal helped to overcome technical issues with the cage structure. Open sea floating cage diameter was reduced to 6 m and 14 new open sea floating cages were launched at Sutrapada (Gujarat), Vasai (Maharashtra), Mangalore (Karnataka), Cochin (Kerala), Pulicat (Tamil Nadu), Nellore, Kakinada, Baruva (Andhra Pradesh) and Balasore (Odisha) in participation with National Fisheries Development Board (NFDB)

Health monitoring and disease management

The culture of marine finfish in cages was successfully initiated in Japan in 1950s and in South East Asia during 1970s. In the initial years of cage culture, fish seed for culture was collected from the wild. Recent developments in hatchery technology and seed production of commercially important marine finfish and shellfish have ensured the continuous supply of seed for mariculture practices. The disease control and health management are important issues for sustainable aquaculture. The disease occurrence causes major economic loss to aquaculture farmers. Production costs often increase due to disease outbreaks and treatment procedures followed to overcome death of fishes during culture. In natural aquatic environments, disease problems are unnoticed as diseased/weak/stressed fishes are easily removed by predators and very few occurrences of disease outbreaks are reported. Moreover in natural environment fish are not crowded as in captive culture conditions, which ultimately causes stress in fishes frequently

Mass envenomation during Ganesh idol immersion at Girgaum-Chowpathy beach, Mumbai, Maharashtra

At the end of South-West monsoon along Mumbai coast a swarm of the box jelly fish, Chiropsoides buitendijki was observed during Ganesh idol immersion at Girgaum-Chowpathy beach, Mumbai on 10th September, 2013. The occurrence of such large number of jelly fishes coincided with Ganesh idol immersion, perhaps for the first time in Mumbai waters. Several devotees of Ganesh who congregated at Girgaum-Chowpathy beach for immersion ritual of Ganesh idol were stung by the jelly fish. According to the news paper reports, the devotees moved with the idol in ankledeep water for immersion and immediately thin tentacle-like threads pierced legs and ankles causing severe burning sensation

Assessment of biogeochemical processes of Ashtamudi Lake ecosystem in relation to clam fishery

The Ashtamudi Lake ecosystem in Kerala (southwest coast of India) is well known for its clam resources. This estuarine system contributes approximately 80% of the total clam export trade of India besides providing livelihoods for at least 3,000 local people. Among bivalves, clams are an important source of meat for human consumption while its shells are used in the cement industry

Cage culture in maharashtra: present and future prospects

Sea farming is a popular area of aquaculture practice throughout the world. In Asian countries, it is rapidly growing to meet the increasing demand of high value marine fishes. Although India has a tradition of aquaculture, sea farming ventures on commercial scale were lacking. In this context, Central Marine Fisheries Research Institute started open sea floating cage culture activities in 2006-07 with Department of Animal Husbandry, Dairying and Fisheries (DAHD&F), Government of India assistance. Indigenous cage of 15 m diameter was fabricated following Norwegian open sea floating cage design and launched at Visakhapatnam. There was a technical setback with the design of cage, and consultation with Indian Institute of Technology, West Bengal helped to overcome technical issues with the cage structure. Open sea floating cage diameter was reduced to 6 m and 14 new open sea floating cages were launched at Sutrapada (Gujarat), Vasai (Maharashtra), Mangalore (Karnataka), Cochin (Kerala), Pulicat (Tamil Nadu), Nellore, Kakinada, Baruva (Andhra Pradesh) and Balasore (Odisha) in participation with National Fisheries Development Board (NFDB)

Sediment blue carbon stock of Avicennia officinalis in Vembanad Lake ecosystem, Kerala, India

Stock assessment of the blue carbon pool of selected patches of mangrove sediment in the Vembanad Lake was done using the standard protocols on a per ha basis and multiplied with the estimated area to derive the blue carbon stock of the particular fragmented mangrove stands of the species Avicennia officinalis (Indian Mangrove), twice (in the post and pre-monsoon) during October 2017-March 2018. The treatments included ‘aged’, ‘recent’, ‘healthy’ and ‘degraded’ mangroves of the selected species and ‘control’ without mangroves. The overall mean carbon stock in the A. officinalis sediments in selected locations of the Vembanad Lake area was 136.09 Mg C/ha (Mg=mega gram=1 tonne). This value is far low compared to the mean global soil organic carbon stock in the mangrove ecosystem (386 Mg C/ha). This finding suggests ample opportunity for more carbon sequestration in the selected mangrove ecosystems in Vembanad Lake, toward climate change mitigation measures. The treatments differed significantly in the cumulative stock of blue carbon and layer-wise blue carbon density in sediment (p<0.05), the highest seen in ‘healthy’ mangroves in both seasons. The overall range of layer-wise blue carbon density in sediment was found to be 0.003 to 0.56 Mg/m3. Spatial maps prepared for layer-wise blue carbon density in the sediment revealed its depth-wise increase. Layer wise blue carbon stock in sediment had a significant correlation with total organic carbon and organic matter (p<0.01) and with the C/N ratio of the sediment (p < 0.05). Based on the results, this study suggests total organic carbon and the C/N ratio of sediment as possible predictive indicators of sediment blue carbon

Status of India's Exploited Marine Fishery Resources in 2013

The Central Marine Fisheries Research Institute start collected and estimation of marine fish landings for the peninsular coast of India since its inception in 1947, based on a stratified multistage random sampling technique. This which continues to date, and provides knowledge-base for many research, planning and policy initiatives in the marine fisheries sector

Design, Performance, and Calibration of the CMS Hadron-Outer Calorimeter

The CMS hadron calorimeter is a sampling calorimeter with brass absorber and plastic scintillator tiles with wavelength shifting fibres for carrying the light to the readout device. The barrel hadron calorimeter is complemented with an outer calorimeter to ensure high energy shower containment in the calorimeter. Fabrication, testing and calibration of the outer hadron calorimeter are carried out keeping in mind its importance in the energy measurement of jets in view of linearity and resolution. It will provide a net improvement in missing \et measurements at LHC energies. The outer hadron calorimeter will also be used for the muon trigger in coincidence with other muon chambers in CMS