Anulekshmi Chellappan | Central Marine Fisheries Research Institute, Cochin (original) (raw)
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òoeflôñËáÊÖÊ ü˘ÇÛ †, úÊ †èÍ Ä ú ü˘Öôì { •ìÈ ‚òË ÖÎ ¤ îì, üÈ áËè üÈ ëöò •Êé´ü. åË. ÄÊ ñ°Î îöÖô :... more òoeflôñËáÊÖÊ ü˘ÇÛ †, úÊ †èÍ Ä ú ü˘Öôì { •ìÈ ‚òË ÖÎ ¤ îì, üÈ áËè üÈ ëöò •Êé´ü. åË. ÄÊ ñ°Î îöÖô : üòÈ vÊè¤ôÊ ˘îá⁄ôÊè úÊçËüÊãË äÊÄOEôÊè ôÎ éÊ⁄ôÊ òoeflôñËáÊ ÖÊ, ìüÇÊ èÍ ì ü˘ÇÛ † ÄöéÎ †ÊÖ ò †oeoeúÊÖÊ üÛ Ê Î è •Ê †Î. «ôÊúÎ°Ë òoeflôñËá ì˙òèËÖÊ ÅÖ˙áÊflè •üèÊ Î èüÎ Ö ìüÇÊ è òoeflôñËáÊ ÖÊ üÊãÊ òÈ ñ ÄöoeôÊ ©î ÷í •üèÊ Î •ùÊ úÎ°Ë ìüÇÊ èÍ ìÖ òoeflôñËáÊ ÖÊ ü˘ÇÛ † Ä Î Ê áÊèÊ Î. •êÊ è¯ôÊüÊãË ìúå Î ¤ôÊ îÛ áÊèËÖË ìÎ òÄË áËúùÊfl∞Ëô òÊ †èË ã檀 •üéÎ •Êú›ôÄ •Ê †Î. «ôÊòÈ°Î ˘îá⁄ôÊè¤ôÊ ñ˘ëflè •úflêÎ è †Ë îÛ áìì ÄùÊ îöflêèËè †Ê Î èÎ , ÄÊ Î ãÍ ì ú ÄíË òoeflôñËáÎ ÇÊ Î°Ê ÄöÊúËè •Êë ÇÊ Î fiäˢÖË òÊ †èË Ä°èÎ. áÇóöÊè òÊ∞ •ùÊ òoeflôùÎ èËüÊãË †Ù ÖöËè h∞òöËoeôÊ èôÊö Ä Î Î ¤ôÊ òoeflôñËáÊÖÊ úÊîö Ä Î Ê áÊèÊ Î. oeôÊòÈ°Î ìüÇÊ è ©î ÷í •üéÊöË ìÏ ü˙ÇÄ ìîá ëÎ ÅË üÈ ö¢è öÊ †èÎ. îÛ oeô¢ òoeflôùÎ èË≈ôÊ ãÄÊéÊîô˚è òoeflôñËáÊ ÖË úÊ †èÍ Ä ÄöéÎ †Ë´Ä áÄËöËÖË ñÊñ •Ê †Î. ÄÊöé ôÊÖ ÄÊ ÊúíËè òoeflôñËáÊ ÖÊ áÊflèËè áÊflè ü˘ †Êö †Ê Î èÊ Î. òÊüÎ úÊ †èÍ ÄË≈ôÊ ëöÿôÊì èéÊúÊÅÊ Ë •Ê¤ôÊòÈ°Î oeôÊ ≈ôÊ ÖôÊîÖôÊè úÉÊèÄ îöéÊò ú ñë ÉåÍ ì ôÎ èÊè. oeôÊòÈ°Î òöèÈ Ä †Ê Î èÎ. îÛ oeôÎ Ä ˘îá⁄ôÊè ©oeèò { ôÊ Î ¬ô îÛ òÊéÊè òoeflôñËáÊÖÎ ü˘Öôì ÄöéÎ •Êú›ôÄ •Ê †Î. èöÖ ôÊ Î ¬ô îÛ òÊéÊè òoeflôÊ Î oeîÊëì †Ê Î ™ ùÄèÎ. ôÊ Î ÅÊè òÈ ¡ôoeúÎ ÄQì ôÊ ñÊñˢÖÊ © †ÊîÊ Î † Ä Î Î Ê •Ê †Î. òÊüÎ •Êé ÄúÖíÊöË òoeflôÅÊë¥ ôÊ ≈ôÊ òoeflôñËáÊ ÖÊ ü˘ÇÛ † ÄÊ Î éoeôÊ †Ë òoeflôùÎ èË≈ôÊ îÛ ôÊ Î ÇÊè üú˙îÛ êò òoeflôñËáÊ ÖÎ îÊOEôÊè îÈ öÎ ùÊ ú ôÊ Î ¬ô ü˘¡ôÎ ìÎ ü˘Öôì ÄöéÎ †Î üÈ PúÊèËÖÎ Ö ÄÊò •Ê †Î ú oeôÊòÈ°Î òoeflôÊ Î oeîÊëìÊÖÎ "ôÎ ô ÇÊãéÎ üÈ Äö †Ê Î èÎ. ôÊ òoeflôñËáÊ ÖÎ †Ù ÖöËèÍ ì áèÊåÊ ˘ÄúÊ ìÏ ü˙ÇÄöËoeôÊ ÇÊ Î°Ê Ä Î Î áÊèÎ. üË-ñÊü ÿ †éáÎ áèÊåÊ. T. Blochi ˘ÄúÊ ü¤‹ †ö îÊ Î ÿîÊìÊ Î •Êé ôÊ òÊùÊ ÖÊ •îúÊë üÊ Î å¤ôÊü ßèöÊ ≈ôÊ òoeflôñËáì˙òèËÖÎ è˘∞£Êì óÊöèÊè •ë¥Êî ©î ÷í ìÊ †Ë. îö˘èÈ á ë úÊçéÊ⁄ôÊ ÄÊ †Ë òÊùÊ ÖÎ òoeflôñËá ìüÇÊ è ü †áÇoeôÊ ©î ÷í †Ê Î èÎ. ©îá ÄöèÊ ôÎ èË •ùÊ òÊùÊ îÏ ÄË {
Investigations were carried out to assess the spatio-temporal distribution and ichthyofaunal dive... more Investigations were carried out to assess the spatio-temporal distribution and ichthyofaunal diversity along the Mumbai coast of Maharashtra, India, with the help of GIS technology. The catch data from single-day and multi-day trawlers for the period September 2013 to February 2014 were recorded. A total of 120 fish species belonging to 85 genera, 56 families and 23 orders were caught by 55 hauls of multi-day and single-day trawlers. Bathymetric distribution showed availability of maximum number of species at the depth of 15-19 m (70 species) followed by the depth of 20-24 m (65 species) and that of 10-14 m (64 species). Biodiversity in terms of number of species was found to be maximum during January 2014. The value of Shannon-Wienner index (H') was recorded between 1.42 and 1.63 indicating less diverse nature of fishes along Mumbai coast. Value of Margalef richness index (d) ranged between 7.08 and 8.79. The average value for Simpson index (λ) recorded was 0.047. K-dominance plot clearly demonstrated the diversity pattern during the study period.
The marine capture fisheries sector of Maharashtra has undergone tremendous change in terms of fi... more The marine capture fisheries sector of Maharashtra has undergone tremendous change in terms of fishing patterns, fishing methods, spatial expansion of fishing grounds, multiday fishing and innovations in crafts and gears, among others. With the increasing demand for marine fish for consumption and other non-food utilization of fishes, exploitation of juvenile fishes is becoming more common. Exploitation of juveniles which causes 'growth overfishing' is a major concern as it affects the health of fish stocks and the ecosystem which impacts livelihood of fishers and causes much economic loss to all stakeholders.
Indian Journal of Fisheries, Mar 31, 2020
In the absence of direct consumption importance and considering as low value bycatch, many vulner... more In the absence of direct consumption importance and considering as low value bycatch, many vulnerable non-target species, especially slow growing deep water fauna, are overlooked in tropical fisheries research and management. The bramble shark Echinorhinus cf. brucus (Bonnaterre, 1788) is one such species, subjected to a significant non-targeted deepwater fishery off southern India. A length frequency based stock assessment of bramble shark caught in trawl fisheries from the southeastern Arabian Sea suggests that, E. cf. brucus is a moderately slow growing (K=0.12 year-1) and moderately long lived shark species (T max = 25 years, L ∞ = 333 at corresponding age of 55 years) which is overexploited (M=0.17, Z=0.39) in the region. In view of resilience capacity and vulnerability of deep sea fisheries, improved research and monitoring programmes are urgently required to ensure a sustainable future for India's expanding deep sea and distant water fisheries.
Slender sunfish, Ranzania laevis measuring a total length of 52.5 cm and weighing 3.8 kg was caug... more Slender sunfish, Ranzania laevis measuring a total length of 52.5 cm and weighing 3.8 kg was caught from a depth of 40 m in the multiday dol net operated 156 km away from the Pachu Bandar Vasai Fort, Mumbai coast, Maharashtra. Detailed Morphmetric measurements, meristic counts and biology of fish were presented in the paper. This species was caught after 48 years off Mumbai, NorthWest Coast of India.
In Maharashtra, catfishes form 2.3% of fishery landings and is dominated by ariid catfishes. The ... more In Maharashtra, catfishes form 2.3% of fishery landings and is dominated by ariid catfishes. The major species supporting the fishery include Osteogeneiosus militaris, Plicofolis tenuispinis, P. dussumieri, Nemapteryx caelata and Netuma thalassina. In October 2018, two albino specimens of the Engraved cattfish Nemapteryx caelata (measuring 37 and 40 cm in Total Length, TL) was collected from the landings of a commercial trawler operated off Mumbai at 50 m depths (Fig.1). Though an estimated 2.7 tonnes of catfishes were landed in the same week, additional albino specimens were not observed. Albinism or lack of pigmentation is caused by a disorder in an enzyme that controls melanin metabolism. Albinism in marine fishes has been sparsely reported and documented and reports from India indicate most of them are from the northern Arabian Sea. Both albino specimens of the Engraved catfish N.caelata mentioned in the current report are retained in the museum collections of ICARCMFRI at Mumbai
Sea farming is a popular area of aquaculture practice throughout the world. In Asian countries, i... more 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)...
Zootaxa, 2020
Pseudanthias vizagensis Krishna, Rao and Venu, 2017 was described from 44 specimens, collected fr... more Pseudanthias vizagensis Krishna, Rao and Venu, 2017 was described from 44 specimens, collected from Visakhapatnam (Andhra Pradesh), on the Bay of Bengal coast of India, but without clear designation of a holotype. The characters used for differentiating the species from its nearest congener Pseudanthias pillai Heemstra & Akhilesh, 2012, a species currently known only from the northern Indian Ocean, were limited, poor and substantially overlapping. Examination of additional material of P. pillai from the Arabian Sea, Bay of Bengal, Andaman Sea, and comparison with the original description and images of P. vizagensis revealed that the latter is a junior synonym of P. pillai. Diagnostic characters are reviewed, additional morphological details and fresh colouration, including sexual dimorphic characters not covered in previous works are provided.
ICAR - Central Marine Fisheries Research Institute, 2020
òoeflôñËáÊÖÊ ü˘ÇÛ †, úÊ †èÍ Ä ú ü˘Öôì { •ìÈ ‚òË ÖÎ ¤ îì, üÈ áËè üÈ ëöò •Êé´ü. åË. ÄÊ ñ°Î îöÖô :... more òoeflôñËáÊÖÊ ü˘ÇÛ †, úÊ †èÍ Ä ú ü˘Öôì { •ìÈ ‚òË ÖÎ ¤ îì, üÈ áËè üÈ ëöò •Êé´ü. åË. ÄÊ ñ°Î îöÖô : üòÈ vÊè¤ôÊ ˘îá⁄ôÊè úÊçËüÊãË äÊÄOEôÊè ôÎ éÊ⁄ôÊ òoeflôñËáÊ ÖÊ, ìüÇÊ èÍ ì ü˘ÇÛ † ÄöéÎ †ÊÖ ò †oeoeúÊÖÊ üÛ Ê Î è •Ê †Î. «ôÊúÎ°Ë òoeflôñËá ì˙òèËÖÊ ÅÖ˙áÊflè •üèÊ Î èüÎ Ö ìüÇÊ è òoeflôñËáÊ ÖÊ üÊãÊ òÈ ñ ÄöoeôÊ ©î ÷í •üèÊ Î •ùÊ úÎ°Ë ìüÇÊ èÍ ìÖ òoeflôñËáÊ ÖÊ ü˘ÇÛ † Ä Î Ê áÊèÊ Î. •êÊ è¯ôÊüÊãË ìúå Î ¤ôÊ îÛ áÊèËÖË ìÎ òÄË áËúùÊfl∞Ëô òÊ †èË ã檀 •üéÎ •Êú›ôÄ •Ê †Î. «ôÊòÈ°Î ˘îá⁄ôÊè¤ôÊ ñ˘ëflè •úflêÎ è †Ë îÛ áìì ÄùÊ îöflêèËè †Ê Î èÎ , ÄÊ Î ãÍ ì ú ÄíË òoeflôñËáÎ ÇÊ Î°Ê ÄöÊúËè •Êë ÇÊ Î fiäˢÖË òÊ †èË Ä°èÎ. áÇóöÊè òÊ∞ •ùÊ òoeflôùÎ èËüÊãË †Ù ÖöËè h∞òöËoeôÊ èôÊö Ä Î Î ¤ôÊ òoeflôñËáÊÖÊ úÊîö Ä Î Ê áÊèÊ Î. oeôÊòÈ°Î ìüÇÊ è ©î ÷í •üéÊöË ìÏ ü˙ÇÄ ìîá ëÎ ÅË üÈ ö¢è öÊ †èÎ. îÛ oeô¢ òoeflôùÎ èË≈ôÊ ãÄÊéÊîô˚è òoeflôñËáÊ ÖË úÊ †èÍ Ä ÄöéÎ †Ë´Ä áÄËöËÖË ñÊñ •Ê †Î. ÄÊöé ôÊÖ ÄÊ ÊúíËè òoeflôñËáÊ ÖÊ áÊflèËè áÊflè ü˘ †Êö †Ê Î èÊ Î. òÊüÎ úÊ †èÍ ÄË≈ôÊ ëöÿôÊì èéÊúÊÅÊ Ë •Ê¤ôÊòÈ°Î oeôÊ ≈ôÊ ÖôÊîÖôÊè úÉÊèÄ îöéÊò ú ñë ÉåÍ ì ôÎ èÊè. oeôÊòÈ°Î òöèÈ Ä †Ê Î èÎ. îÛ oeôÎ Ä ˘îá⁄ôÊè ©oeèò { ôÊ Î ¬ô îÛ òÊéÊè òoeflôñËáÊÖÎ ü˘Öôì ÄöéÎ •Êú›ôÄ •Ê †Î. èöÖ ôÊ Î ¬ô îÛ òÊéÊè òoeflôÊ Î oeîÊëì †Ê Î ™ ùÄèÎ. ôÊ Î ÅÊè òÈ ¡ôoeúÎ ÄQì ôÊ ñÊñˢÖÊ © †ÊîÊ Î † Ä Î Î Ê •Ê †Î. òÊüÎ •Êé ÄúÖíÊöË òoeflôÅÊë¥ ôÊ ≈ôÊ òoeflôñËáÊ ÖÊ ü˘ÇÛ † ÄÊ Î éoeôÊ †Ë òoeflôùÎ èË≈ôÊ îÛ ôÊ Î ÇÊè üú˙îÛ êò òoeflôñËáÊ ÖÎ îÊOEôÊè îÈ öÎ ùÊ ú ôÊ Î ¬ô ü˘¡ôÎ ìÎ ü˘Öôì ÄöéÎ †Î üÈ PúÊèËÖÎ Ö ÄÊò •Ê †Î ú oeôÊòÈ°Î òoeflôÊ Î oeîÊëìÊÖÎ "ôÎ ô ÇÊãéÎ üÈ Äö †Ê Î èÎ. ôÊ òoeflôñËáÊ ÖÎ †Ù ÖöËèÍ ì áèÊåÊ ˘ÄúÊ ìÏ ü˙ÇÄöËoeôÊ ÇÊ Î°Ê Ä Î Î áÊèÎ. üË-ñÊü ÿ †éáÎ áèÊåÊ. T. Blochi ˘ÄúÊ ü¤‹ †ö îÊ Î ÿîÊìÊ Î •Êé ôÊ òÊùÊ ÖÊ •îúÊë üÊ Î å¤ôÊü ßèöÊ ≈ôÊ òoeflôñËáì˙òèËÖÎ è˘∞£Êì óÊöèÊè •ë¥Êî ©î ÷í ìÊ †Ë. îö˘èÈ á ë úÊçéÊ⁄ôÊ ÄÊ †Ë òÊùÊ ÖÎ òoeflôñËá ìüÇÊ è ü †áÇoeôÊ ©î ÷í †Ê Î èÎ. ©îá ÄöèÊ ôÎ èË •ùÊ òÊùÊ îÏ ÄË {
Investigations were carried out to assess the spatio-temporal distribution and ichthyofaunal dive... more Investigations were carried out to assess the spatio-temporal distribution and ichthyofaunal diversity along the Mumbai coast of Maharashtra, India, with the help of GIS technology. The catch data from single-day and multi-day trawlers for the period September 2013 to February 2014 were recorded. A total of 120 fish species belonging to 85 genera, 56 families and 23 orders were caught by 55 hauls of multi-day and single-day trawlers. Bathymetric distribution showed availability of maximum number of species at the depth of 15-19 m (70 species) followed by the depth of 20-24 m (65 species) and that of 10-14 m (64 species). Biodiversity in terms of number of species was found to be maximum during January 2014. The value of Shannon-Wienner index (H') was recorded between 1.42 and 1.63 indicating less diverse nature of fishes along Mumbai coast. Value of Margalef richness index (d) ranged between 7.08 and 8.79. The average value for Simpson index (λ) recorded was 0.047. K-dominance plot clearly demonstrated the diversity pattern during the study period.
The marine capture fisheries sector of Maharashtra has undergone tremendous change in terms of fi... more The marine capture fisheries sector of Maharashtra has undergone tremendous change in terms of fishing patterns, fishing methods, spatial expansion of fishing grounds, multiday fishing and innovations in crafts and gears, among others. With the increasing demand for marine fish for consumption and other non-food utilization of fishes, exploitation of juvenile fishes is becoming more common. Exploitation of juveniles which causes 'growth overfishing' is a major concern as it affects the health of fish stocks and the ecosystem which impacts livelihood of fishers and causes much economic loss to all stakeholders.
Indian Journal of Fisheries, Mar 31, 2020
In the absence of direct consumption importance and considering as low value bycatch, many vulner... more In the absence of direct consumption importance and considering as low value bycatch, many vulnerable non-target species, especially slow growing deep water fauna, are overlooked in tropical fisheries research and management. The bramble shark Echinorhinus cf. brucus (Bonnaterre, 1788) is one such species, subjected to a significant non-targeted deepwater fishery off southern India. A length frequency based stock assessment of bramble shark caught in trawl fisheries from the southeastern Arabian Sea suggests that, E. cf. brucus is a moderately slow growing (K=0.12 year-1) and moderately long lived shark species (T max = 25 years, L ∞ = 333 at corresponding age of 55 years) which is overexploited (M=0.17, Z=0.39) in the region. In view of resilience capacity and vulnerability of deep sea fisheries, improved research and monitoring programmes are urgently required to ensure a sustainable future for India's expanding deep sea and distant water fisheries.
Slender sunfish, Ranzania laevis measuring a total length of 52.5 cm and weighing 3.8 kg was caug... more Slender sunfish, Ranzania laevis measuring a total length of 52.5 cm and weighing 3.8 kg was caught from a depth of 40 m in the multiday dol net operated 156 km away from the Pachu Bandar Vasai Fort, Mumbai coast, Maharashtra. Detailed Morphmetric measurements, meristic counts and biology of fish were presented in the paper. This species was caught after 48 years off Mumbai, NorthWest Coast of India.
In Maharashtra, catfishes form 2.3% of fishery landings and is dominated by ariid catfishes. The ... more In Maharashtra, catfishes form 2.3% of fishery landings and is dominated by ariid catfishes. The major species supporting the fishery include Osteogeneiosus militaris, Plicofolis tenuispinis, P. dussumieri, Nemapteryx caelata and Netuma thalassina. In October 2018, two albino specimens of the Engraved cattfish Nemapteryx caelata (measuring 37 and 40 cm in Total Length, TL) was collected from the landings of a commercial trawler operated off Mumbai at 50 m depths (Fig.1). Though an estimated 2.7 tonnes of catfishes were landed in the same week, additional albino specimens were not observed. Albinism or lack of pigmentation is caused by a disorder in an enzyme that controls melanin metabolism. Albinism in marine fishes has been sparsely reported and documented and reports from India indicate most of them are from the northern Arabian Sea. Both albino specimens of the Engraved catfish N.caelata mentioned in the current report are retained in the museum collections of ICARCMFRI at Mumbai
Sea farming is a popular area of aquaculture practice throughout the world. In Asian countries, i... more 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)...
Zootaxa, 2020
Pseudanthias vizagensis Krishna, Rao and Venu, 2017 was described from 44 specimens, collected fr... more Pseudanthias vizagensis Krishna, Rao and Venu, 2017 was described from 44 specimens, collected from Visakhapatnam (Andhra Pradesh), on the Bay of Bengal coast of India, but without clear designation of a holotype. The characters used for differentiating the species from its nearest congener Pseudanthias pillai Heemstra & Akhilesh, 2012, a species currently known only from the northern Indian Ocean, were limited, poor and substantially overlapping. Examination of additional material of P. pillai from the Arabian Sea, Bay of Bengal, Andaman Sea, and comparison with the original description and images of P. vizagensis revealed that the latter is a junior synonym of P. pillai. Diagnostic characters are reviewed, additional morphological details and fresh colouration, including sexual dimorphic characters not covered in previous works are provided.
ICAR - Central Marine Fisheries Research Institute, 2020