Studies on the bio-inventory and ecosystem valuation document the ecosystems services in economic... more Studies on the bio-inventory and ecosystem valuation document the ecosystems services in economic terms which makes it easily interpreted by policy makers and executives. Economic valuation of coastal ecosystems is essential for environmental planning and management, which ultimately leads to sensible use of coastal resources and services. Karnataka is one of the major maritime states on the south west coast of India. In this research, an attempt was made to understand the biodiversity and the economic value of coastal ecosystems of Karnataka to highlight its Provisional Services, Regulatory Services, Supporting Service and Cultural/spiritual services for biodiversity conservation and management.
Biodiversity is defined by the Convention on Biological Diversity (CBD) as the variability among ... more Biodiversity is defined by the Convention on Biological Diversity (CBD) as the variability among living organisms from all sources including , among others, 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.
The striped bonito, Sarda orientalis is found to form a seasonal fishery all along the coasts of ... more The striped bonito, Sarda orientalis is found to form a seasonal fishery all along the coasts of its occurrence except in Kerala where it is fished almost throughout the year. During the period 2006-2010, of the all India annual average catch of 849 t, Kerala contributed the maximum of 65.6% followed by Andaman and Nicobar (23.4%) with the rest being accounted for by Gujarat (6.6%), Tamil Nadu (2.3%), Andhra Pradesh (1.4%), Maharashtra (0.6%) and Karnataka (0.2%). From West Bengal and Odisha, no landing of the species has been reported. Size ranged from 16 to 68 cm. Mature fishes dominated in June and July. Size at first maturity was 42 cm FL. They are carnivorous fishes with crustaceans and cephalopods constituting the chief food items. Length-weight relationship was W = 0.00869 L 3.1 (n =134, r 2 = 0.96). The von Bertalanffy growth equation was: Lt = 74.75 [1-e-0.68 (t + 0) ]. The prediction analysis based on Kerala landing show that the current exploitation is well below the MSY level indicating scope for increasing the effort to exploit the resource.
The striated fusilier Caesio striata, is recorded for the first time in Indian waters. A single s... more The striated fusilier Caesio striata, is recorded for the first time in Indian waters. A single specimen was caught in the Gulf of Mannar and landed at Tuticorin fisheries harbour in September 2010.
The convention on Biological Diversity (CBD) recommends the conservation of ecosystem through pol... more The convention on Biological Diversity (CBD) recommends the conservation of ecosystem through policies for protected areas and sustainable management. Excerpts from the Article 8 of the Convention on Biological Diversity: In situ conservation, which promote the protection of ecosystem and the maintenance of viable populations of species in natural surroundings. In India we had several species of organisms belonging to different groups constitute the protected marine organism and majority of them are belonging to elasmobranchs, dolphins, whales, sea cow, turtles, molluscs, corals, sponges holothurians and gorgonids. India is blessed with rich biodiversity along the west and east coast resulting in the supply of essential ecosystem goods and services to the millions of population living in the coastal area.
Tetraodontidae (puffers), a speciose marine fish family, has about 19 genera and 130 valid specie... more Tetraodontidae (puffers), a speciose marine fish family, has about 19 genera and 130 valid species, mostly shallow water inhabitants of tropical/subtropical marine environments, with several species entering and occurring in brackish and freshwater environments (Nelson, 2006; Froese and Pauly, 2013). The silverstripe blassop Lagocephalus sceleratus (Gmelin, 1789) is a large beautiful fish species of the Tetraodontidae, preferring depth ranges of 18 to 100 m, and also a reef inhabitant species. Lagocephalus sceleratus is widely distributed in the Indo-West Pacific Ocean (Smith and Heemstra, 1986) and in the western Indian Ocean, it has been reported from South Africa, Oman and Maldives (Froese and Pauly, 2013). It is recently reported from northeastern Mediterranean Sea, Cretan Sea and Iskenderum Bay as a migrant species (
Aquaculture experienced a drastic increase throughout the world with a range species from giant c... more Aquaculture experienced a drastic increase throughout the world with a range species from giant clam, mussels, oysters, carps, salmon, grouper, milkfish, catfish, pompano, and tuna cultured in diverse environments. Diversity observed from filter feeders, herbivore to highly carnivorous groups. Fish culture habitats also showed the diversity from estuary, lakes, mangroves, coastline, inshore to offshore areas. Two major subsectors emerged in the aquaculture sector are the family and co-operative farms mainly follow the extensive and semi-intensive practices, whereas the commercial farms follow the intensive and semi-intensive practices to produce high valued products for the global market. The aquaculture production can reduce the pressure on the capture production and can lower the investment in the fishing fleets and effort.
Indian fish taxonomy has a long history, which started with Kautilya’s Arthasastra describing fis... more Indian fish taxonomy has a long history, which started with Kautilya’s Arthasastra describing fish as a source for consumption as early as 300 B.C and the epic on the second pillar of Emperor Ashoka describing the prohibition of consumption of fish during a certain lunar period which can be interpreted as a conservation point of view. Modern scientific studies on Indian fishes could be traced to the initial works done by Linnaeus in 1758. M. E. Bloch is one of the pioneers in the field of fish taxonomy along with the naturalists, zoologists and botanists who laid the foundation for fisheries research in India such as Bloch and Schneider (1795-1801) and Lacepede (1798-1803). Russell who worked on 200 fishes off Vizagapatanam during 1803. Hamilton (1822) described 71 estuarine fishes of India in his work An Account of Fishes Found in the River Ganges and Its Branches. The mid 1800s contributed much in the history of Indian fish taxonomy since the time of the expeditions was going thro...
India’s marine fisheries are at a turning point; the rapid increase in yields witnessed during th... more India’s marine fisheries are at a turning point; the rapid increase in yields witnessed during the first 60 years of independence has slowed down and the scope for increase in yields from new unexploited and underexploited fish stocks and grounds seems limited. The situation calls for urgent measures to sustain the production close to the target potential yield of 4.41 million tonnes. These measures would mean implementation of science based fisheries management and regulations. Although much has been accomplished by way of research and development in marine fisheries in India, the transformation and implementation of the outcome of these studies into effective management of marine fisheries resources of the country has been a shortcoming so far. The FAO brought out the Code of Conduct for Responsible Fisheries (FAO-CCRF) in 1995 to serve as a guidance for countries for a sound and effective management of fisheries resources. This FAO-CCRF has not been put into practice in India, al...
Background: The present report is the first record of the Pyramodon lindas (Markle and Olney, Bul... more Background: The present report is the first record of the Pyramodon lindas (Markle and Olney, Bull Mar Sci 47: 269-410, 1990) from India waters. A specimen of Pyramodon lindas measuring 483 mm total length was obtained from Tuticorin of Gulf of Mannar which is the largest specimen of so far recorded. Results: The Pyramodon lindas measured 483 mm in TL, 85 mm in Head length, 18.1 mm in snout length. Body elongate, compressed to round and eel like, supramaxilla absent, anal fin origin advanced. The specimen was deposited in the National Biodiversity Museum at the Central Marine Fisheries Research Institute, Kochi (GB.28.3.3.1) Detailed mophometric and meristic characters described and discussed. Conclusion: The Pyramodon lindas reported in the present study makes the total species reported from India as four in family Carapidae. The other reports were Carapus homei (Richardson, 1846), Pyramodon punctatum (Regan, 1914), Carapus margaritiferae (Rendahl, 1921) Brotula multibarbata Temmink & Schlegel, 1846 Antennarius hispidus (Bloch & Schneider, 1801).
Studies on the bio-inventory and ecosystem valuation document the ecosystems services in economic... more Studies on the bio-inventory and ecosystem valuation document the ecosystems services in economic terms which makes it easily interpreted by policy makers and executives. Economic valuation of coastal ecosystems is essential for environmental planning and management, which ultimately leads to sensible use of coastal resources and services. Karnataka is one of the major maritime states on the south west coast of India. In this research, an attempt was made to understand the biodiversity and the economic value of coastal ecosystems of Karnataka to highlight its Provisional Services, Regulatory Services, Supporting Service and Cultural/spiritual services for biodiversity conservation and management.
Biodiversity is defined by the Convention on Biological Diversity (CBD) as the variability among ... more Biodiversity is defined by the Convention on Biological Diversity (CBD) as the variability among living organisms from all sources including , among others, 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.
The striped bonito, Sarda orientalis is found to form a seasonal fishery all along the coasts of ... more The striped bonito, Sarda orientalis is found to form a seasonal fishery all along the coasts of its occurrence except in Kerala where it is fished almost throughout the year. During the period 2006-2010, of the all India annual average catch of 849 t, Kerala contributed the maximum of 65.6% followed by Andaman and Nicobar (23.4%) with the rest being accounted for by Gujarat (6.6%), Tamil Nadu (2.3%), Andhra Pradesh (1.4%), Maharashtra (0.6%) and Karnataka (0.2%). From West Bengal and Odisha, no landing of the species has been reported. Size ranged from 16 to 68 cm. Mature fishes dominated in June and July. Size at first maturity was 42 cm FL. They are carnivorous fishes with crustaceans and cephalopods constituting the chief food items. Length-weight relationship was W = 0.00869 L 3.1 (n =134, r 2 = 0.96). The von Bertalanffy growth equation was: Lt = 74.75 [1-e-0.68 (t + 0) ]. The prediction analysis based on Kerala landing show that the current exploitation is well below the MSY level indicating scope for increasing the effort to exploit the resource.
The striated fusilier Caesio striata, is recorded for the first time in Indian waters. A single s... more The striated fusilier Caesio striata, is recorded for the first time in Indian waters. A single specimen was caught in the Gulf of Mannar and landed at Tuticorin fisheries harbour in September 2010.
The convention on Biological Diversity (CBD) recommends the conservation of ecosystem through pol... more The convention on Biological Diversity (CBD) recommends the conservation of ecosystem through policies for protected areas and sustainable management. Excerpts from the Article 8 of the Convention on Biological Diversity: In situ conservation, which promote the protection of ecosystem and the maintenance of viable populations of species in natural surroundings. In India we had several species of organisms belonging to different groups constitute the protected marine organism and majority of them are belonging to elasmobranchs, dolphins, whales, sea cow, turtles, molluscs, corals, sponges holothurians and gorgonids. India is blessed with rich biodiversity along the west and east coast resulting in the supply of essential ecosystem goods and services to the millions of population living in the coastal area.
Tetraodontidae (puffers), a speciose marine fish family, has about 19 genera and 130 valid specie... more Tetraodontidae (puffers), a speciose marine fish family, has about 19 genera and 130 valid species, mostly shallow water inhabitants of tropical/subtropical marine environments, with several species entering and occurring in brackish and freshwater environments (Nelson, 2006; Froese and Pauly, 2013). The silverstripe blassop Lagocephalus sceleratus (Gmelin, 1789) is a large beautiful fish species of the Tetraodontidae, preferring depth ranges of 18 to 100 m, and also a reef inhabitant species. Lagocephalus sceleratus is widely distributed in the Indo-West Pacific Ocean (Smith and Heemstra, 1986) and in the western Indian Ocean, it has been reported from South Africa, Oman and Maldives (Froese and Pauly, 2013). It is recently reported from northeastern Mediterranean Sea, Cretan Sea and Iskenderum Bay as a migrant species (
Aquaculture experienced a drastic increase throughout the world with a range species from giant c... more Aquaculture experienced a drastic increase throughout the world with a range species from giant clam, mussels, oysters, carps, salmon, grouper, milkfish, catfish, pompano, and tuna cultured in diverse environments. Diversity observed from filter feeders, herbivore to highly carnivorous groups. Fish culture habitats also showed the diversity from estuary, lakes, mangroves, coastline, inshore to offshore areas. Two major subsectors emerged in the aquaculture sector are the family and co-operative farms mainly follow the extensive and semi-intensive practices, whereas the commercial farms follow the intensive and semi-intensive practices to produce high valued products for the global market. The aquaculture production can reduce the pressure on the capture production and can lower the investment in the fishing fleets and effort.
Indian fish taxonomy has a long history, which started with Kautilya’s Arthasastra describing fis... more Indian fish taxonomy has a long history, which started with Kautilya’s Arthasastra describing fish as a source for consumption as early as 300 B.C and the epic on the second pillar of Emperor Ashoka describing the prohibition of consumption of fish during a certain lunar period which can be interpreted as a conservation point of view. Modern scientific studies on Indian fishes could be traced to the initial works done by Linnaeus in 1758. M. E. Bloch is one of the pioneers in the field of fish taxonomy along with the naturalists, zoologists and botanists who laid the foundation for fisheries research in India such as Bloch and Schneider (1795-1801) and Lacepede (1798-1803). Russell who worked on 200 fishes off Vizagapatanam during 1803. Hamilton (1822) described 71 estuarine fishes of India in his work An Account of Fishes Found in the River Ganges and Its Branches. The mid 1800s contributed much in the history of Indian fish taxonomy since the time of the expeditions was going thro...
India’s marine fisheries are at a turning point; the rapid increase in yields witnessed during th... more India’s marine fisheries are at a turning point; the rapid increase in yields witnessed during the first 60 years of independence has slowed down and the scope for increase in yields from new unexploited and underexploited fish stocks and grounds seems limited. The situation calls for urgent measures to sustain the production close to the target potential yield of 4.41 million tonnes. These measures would mean implementation of science based fisheries management and regulations. Although much has been accomplished by way of research and development in marine fisheries in India, the transformation and implementation of the outcome of these studies into effective management of marine fisheries resources of the country has been a shortcoming so far. The FAO brought out the Code of Conduct for Responsible Fisheries (FAO-CCRF) in 1995 to serve as a guidance for countries for a sound and effective management of fisheries resources. This FAO-CCRF has not been put into practice in India, al...
Background: The present report is the first record of the Pyramodon lindas (Markle and Olney, Bul... more Background: The present report is the first record of the Pyramodon lindas (Markle and Olney, Bull Mar Sci 47: 269-410, 1990) from India waters. A specimen of Pyramodon lindas measuring 483 mm total length was obtained from Tuticorin of Gulf of Mannar which is the largest specimen of so far recorded. Results: The Pyramodon lindas measured 483 mm in TL, 85 mm in Head length, 18.1 mm in snout length. Body elongate, compressed to round and eel like, supramaxilla absent, anal fin origin advanced. The specimen was deposited in the National Biodiversity Museum at the Central Marine Fisheries Research Institute, Kochi (GB.28.3.3.1) Detailed mophometric and meristic characters described and discussed. Conclusion: The Pyramodon lindas reported in the present study makes the total species reported from India as four in family Carapidae. The other reports were Carapus homei (Richardson, 1846), Pyramodon punctatum (Regan, 1914), Carapus margaritiferae (Rendahl, 1921) Brotula multibarbata Temmink & Schlegel, 1846 Antennarius hispidus (Bloch & Schneider, 1801).
Uploads
Papers by K K JOSHI