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Biodiversity of Deep Sea Prawns in the Upper Continental Slope of Arabian Sea, off Kerala (south west India): A Comparison Between Depths and Years

Year 2011, Volume: 11 Issue: 2, - , 01.04.2011

Abstract

Univariate diversity indices and multivariate cluster analysis were performed in order to evaluate the year wise and depth wise bio diversity of deep sea prawns between 150-650m in the upper continental slope of Arabian Sea, off Kerala, South India. Data were collected from both exploratory surveys as well as commercial deep sea -to fishery off Kerala coast between latitudes 7to 13oN. Biodiversity and species assemblage are discussed considering the different environmental characters as well as deep sea fishing intensity. Analysis of biodiversity indices of deep sea prawns off Kerala during different months of 2000-01 and 2001-02 revealed that the biodiversity indices were high at 150-250 and 251-350 m whereas in higher depth zones of 351-450, 451-550 and 551-650 m, the diversity is gradually declining. The species richness was also found maximum at relatively lower depth zones of 251-350 in contrast to the low values registered in higher depths. The results showed the variation in species diversity, abundance and evenness of deep sea prawns observed at various depth zones might be due to the combined effect of both nature of substratum and the prevailing water temperature, besides the impacts of deep sea trawling operations.

References

  • Abellé, P., Valladares, F.] . and Castello, N. 1988. Analysis of the structure of decapod crustaceans assemblages of the Catalan coast (North-west Mediterranean) Marine Biology, 98: 39-49.
  • Alcock, A. 1901. A descriptive catalogue of the Indian deep-sea Crustacea, Decapoda, Macrura and Anomala in the Indian Museum, being a revised account of the deep sea species collected by the Royal Marine Ship ‘investigator’, Baptist Mission press Calcutta, India, 286 pp.
  • Basford, E.] ., Eletherieu, A. and Raffelli, D. 1989. The epifauna of the northern sea. Journal of Marine Biological Association of United Kingdom, 28: 32-41.
  • Bianchi, G. 1992. Demersal assemblages of the continental shelf and upper slope of Angola. Marine Ecology Progress Series, 81:101-120.
  • Brown, R.B.1990. Fact Sheet SL-29. Soil and water science Department., Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida.
  • Carr, M.R. 1997. Primer user Manual, Plymouth Routines in Multivariate Ecological Research Plymouth Marine Laboratory, Plymouth, UK, 36 pp.
  • Cartes, J.E. and Sardâ, F. 1993. Zonation of deep sea decapod fauna in the Catalan Sea (Western Mediterranean). Journal Natural History, 26: 1035— 1323.
  • Chou, W.R., Lai, S.H. and Fang, L.S. 1999. Benthic crustacean communities in waters of Taiwan and their relationship to environmental characteristics. Acta Zoologica Taiwanica., 10(1): 25—33.
  • Clarke, K.R., Warwick, RM. and Brown, BE. 1993. An index showing breakdown of seriation, related to disturbance, in a coral reef assemblage. Marine Ecology Progress Series, 92: 205-219.
  • D’Onghia, G., Mastrototaro, F., Matarrese, A., Politou, C.Y. and Mytilineou, Ch. 2002. Biodiversity of the upper slope demersal community in the eastern Mediterranean: Preliminary comparison between two areas with and Without trawl Şshing. Journal of Northwest Atlantic Fishery Science, 31: 263—273.
  • Dow, R.L. 1967. Temperature limitations on the supply of northern shrimp (Pandalus borealis) in Maine (USA) waters. Proceedings Symposium on Crustacea, Marine Biological Association of India, 4: 1301-1304.
  • Farina, A.C., Freire, J. and Gurriaran, E.G. 1997. Mega benthic decapod crustacean assemblages on the Galician continental shelf and upper slope (north-west Spain). Marine Biology, 127: 419-434.
  • George, M.]. and Rao, P.V. 1966. Distribution of sex ratios of penaeid prawns in the trawl Şshery off Cochin. Proceedings Symposium on Crustacea, Marine Biological Association of India, 2: 698-700.
  • Gonzalez, E. and Olaso, I. 1987. Cambios espaciales y temporales de los crustaceos decapodo de la plataforrna continental de Galicia (NW de Espaniol). Investigacion Pesquera, 57(1): 323-341.
  • Hall, S.]. 1999. The effects of Fishing on Marine Ecosystems and Communities. Fish Biology and Aquatic Resources Series I, Blackwell Science, London, 273 pp.
  • Jennings, S. and Kaiser, M. 1988. The effects of Şshing on marine ecosystems and communities. Advances in Marine Biology, 34: 352.
  • John, C.C. and Kurian, CV. 1959. A preliminary note on the occurrence of deep water prawn and spiny lobster off the Kerala coast. Bulletin Central Research Institute. University of Kerala, Series.7 (1): 155-162.
  • Kurian, C.V. 1964. On the occurrence of the deep-water prawn Penaeopsis rectacutus (Spence Bate) off the Kerala coast. Current Science, 33(7): 216-217.
  • Kurian, C.V. 1965. Deep water prawns and lobsters off the Kerala coast. Fishery Technology, 2(1): 51—53.
  • Lagarde’ re, J.P. 1973 Distribution des Décapodes dans le sud du Golfe de. Gascogne. Revue Trav Inst. Pe Ch marit, 37: 77-95.
  • Lagarde’re, J.P. 1977. Recherches sur la distribution verticale et surl'alimentation des crustaces decapodes bentiques de la pente continentale du Golfe de Gascogne. Analyse des groupementscarcinologiques. Bulletin du Centre d'Etudes et de Recherches ScientiŞques Biarritz, 11: 367-440.
  • Leppakoski, E. 1975. Assessment of degree of pollution on the basis of macrobenthos in marine and brackish water environment. Acta Academia Aboensis, 35(B): 258-269.
  • Ludwig, A.]. and Reynolds, ].F. 1988. Statistical Ecology — A Primer on Methods and Computing. John Wiley & Sons Eds., New York, 337 pp.
  • Macpherson, E. 1991. Bio geography and community structure of the decapod crustacean fauna of Namibia (Southeast Atlantic). Journal of Crustacean Biology, 11: 401-415.
  • Markle, D.F., Dadswell, M.U. and Halliday, R.G. 1988. Demersal Şsh and decapod crustacean fauna of upper continental slope of Nova Scotia from La Havre to St. Pierre Banks. Canadian Journal of Zoology, 66:1952- 1966.
  • Mohamed, K.H. and Suseelan, C. 1973. Deep—sea prawn resources of the south-west coast of India. Proceedings Symposium of Living Resources of the Seas round India, Special publication CMFRI. India: 614-633.
  • Murawski, S.A. 2000. DeŞnitions on over Şshing from an ecosystem perspective. ICES Journal of Marine Science. 57: 649—658.
  • Olaso, I. 1990. Distribucio'n y abundancia del megabentos invertebrado en fondos de la plataforma canta'brica. Publicaciones Especiales-Instituto Espanol de Oceanografıa, 5: 11-28.
  • Rajasree, R. 2005. Systematics, Şshery, resource characteristics and bionomics of deep sea prawns off Kerala. PhD thesis, Kerala: Cochin University of Science and Technology, India.
  • Rao, RV. and Suseelan, C. 1967. On the egg and pre zoea stage of Heterocarpus woodmasom' Alcock (Crustacea, Decapoda, Pandalidae). Journal of Marine Biological Association of India, 9(1): 204-207.
  • Rasmussen, B. 1967. The Şshery for deep sea prawn in Norway. Proceedings Symposium on crustacea. Marine Biological Association of India, 4: 1437-1441.
  • Sardâ, F., Cartes, ].E. and Company, ].B. 1994. Spatio— temporal variations in mega benthos abundance in three different habitats of the Catalan deep-sea (Western Mediterranean). Marine Biology, 120: 211- 219.
  • Setubal, A.M. 1992. Structure and dynamics of benthic megafauna on the continental shelf offshore of Ubatuba, southeastem Brazil. Marine Ecology Progress Series, 86: 63—76.
  • Shanna, G.S. and Murthy, A.V.S. 1973. Prawn Şshery off the west coast of India in relation to hydrographical conditions of the shelf waters. Proceedings Symposium of Living Resources of the Seas round India, Special publication, CMFRI., India: 414-423.
  • Silas, E.G. 1969. Exploratory Şshing by R.V. Varuna. Bulletin of Central Marine Fisheries Research Institute. India, 12:1-86.
  • Smidt, E. 1967. Deep-sea prawn (Pandalus borealis Kr.) in Greenland waters: biology and Şshery. Proceedings First Workshop ScientiŞc. Results of FORV Sagar Sarnpada, 4: 1448-1453.
  • Snedecor, G.W. and Cochran, W.G. 1967. Statistical Methods. Oxford IBH Publishing Co., New Delhi, 593 pp.
  • Squires, M.] . 1968. Relation of temperature to growth and self-propagation Pandalus borealis in Newfoundland. FAO Fisheries Report, 570 (2): 243-250.
  • Suseelan, C. 1974. Observations on the deep-sea prawn Şshery off the south-west coast of India with special reference to pandalids. Journal of Marine Biological Association of India, 16(2): 491-511.
  • Suseelan, C. 1985. Studies on the deep-sea prawns off south-west coast of India. PhD thesis, Kerala: Cochin University of Science and Technology, India.
  • Suseelan, C., Nandakurnar G. and Rajan K.N. 1989. Results of bottom trawling by FORV Sagar Sarnpada with special reference to catch and abundance of edible crustaceans. Proceedings of First Workshop. ScientiŞc Results of FORV Sagar Sampada: 347-359.
  • Suseelan, C., Muthu, M.S., Rajan, K.N., Nandakumar, G., Kathiravel, M., Neelakanta Pillai, N., Surendranatha Kurup, N. and Chellappan, K. 1989. Results of an exclusive survey for the deep-sea crustaceans off southwest coast of India. Proceeding of First Workshop. ScientiŞc Results of FORV Sagar Sampada: 347-359.
  • Thompson, JR. 1967. Development of a commercial Şshery for the penaeid shrimp Hymenopenaeus robustus Smith on the continental slope of the southeastern United States. Proceedings Symposium on crustacean, Marine Biological Association of India, 4: 1454-1459.
  • Trong, PD. 1996. Zoo benthos on mangrove ecosystem on the north-west coastal zone of Tonkin Gulf. PhD thesis, Ha Noi: Pedagogic University of Ha Noi.
  • Trong, P.D., Thung, D.C., Thanh, L.T., Ken, L.V., Ngai N.D. and Thuy, L.T. 2000. Species composition, abundance and biomass distribution of 200 benthos in Vietnamese waters. Proceedings SEAFDEC seminar on Fisheries Research in the south China Sea, Area IV, Vietnamese Waters, 55-77.
  • Wenner, EL. and Boesch, DE 1979. Distribution patterns of epibenthic decapod Crustacea along the shelf-slope coenocline, Middle Atlantic Bight, USA. Bulletin of the Biological Society of Washington, 3: 106-133.
  • Wu, R.S.S. 1982. Periodic defaunation and recovery in a subtropical epi-benthic community in relation to organic pollution. Journal of Experimental Marine Biology and Ecology, 64: 253-269.

Biodiversity of Deep Sea Prawns in the Upper Continental Slope of Arabian Sea, off Kerala (south west India): A Comparison Between Depths and Years

Year 2011, Volume: 11 Issue: 2, - , 01.04.2011

Abstract

Univariate diversity indices and multivariate cluster analysis were performed in order to evaluate the year wise and depth wise bio diversity of deep sea prawns between 150-650m in the upper continental slope of Arabian Sea, off Kerala, South India. Data were collected from both exploratory surveys as well as commercial deep sea -to fishery off Kerala coast between latitudes 7to 13oN. Biodiversity and species assemblage are discussed considering the different environmental characters as well as deep sea fishing intensity. Analysis of biodiversity indices of deep sea prawns off Kerala during different months of 2000-01 and 2001-02 revealed that the biodiversity indices were high at 150-250 and 251-350 m whereas in higher depth zones of 351-450, 451-550 and 551-650 m, the diversity is gradually declining. The species richness was also found maximum at relatively lower depth zones of 251-350 in contrast to the low values registered in higher depths. The results showed the variation in species diversity, abundance and evenness of deep sea prawns observed at various depth zones might be due to the combined effect of both nature of substratum and the prevailing water temperature, besides the impacts of deep sea trawling operations.

References

  • Abellé, P., Valladares, F.] . and Castello, N. 1988. Analysis of the structure of decapod crustaceans assemblages of the Catalan coast (North-west Mediterranean) Marine Biology, 98: 39-49.
  • Alcock, A. 1901. A descriptive catalogue of the Indian deep-sea Crustacea, Decapoda, Macrura and Anomala in the Indian Museum, being a revised account of the deep sea species collected by the Royal Marine Ship ‘investigator’, Baptist Mission press Calcutta, India, 286 pp.
  • Basford, E.] ., Eletherieu, A. and Raffelli, D. 1989. The epifauna of the northern sea. Journal of Marine Biological Association of United Kingdom, 28: 32-41.
  • Bianchi, G. 1992. Demersal assemblages of the continental shelf and upper slope of Angola. Marine Ecology Progress Series, 81:101-120.
  • Brown, R.B.1990. Fact Sheet SL-29. Soil and water science Department., Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida.
  • Carr, M.R. 1997. Primer user Manual, Plymouth Routines in Multivariate Ecological Research Plymouth Marine Laboratory, Plymouth, UK, 36 pp.
  • Cartes, J.E. and Sardâ, F. 1993. Zonation of deep sea decapod fauna in the Catalan Sea (Western Mediterranean). Journal Natural History, 26: 1035— 1323.
  • Chou, W.R., Lai, S.H. and Fang, L.S. 1999. Benthic crustacean communities in waters of Taiwan and their relationship to environmental characteristics. Acta Zoologica Taiwanica., 10(1): 25—33.
  • Clarke, K.R., Warwick, RM. and Brown, BE. 1993. An index showing breakdown of seriation, related to disturbance, in a coral reef assemblage. Marine Ecology Progress Series, 92: 205-219.
  • D’Onghia, G., Mastrototaro, F., Matarrese, A., Politou, C.Y. and Mytilineou, Ch. 2002. Biodiversity of the upper slope demersal community in the eastern Mediterranean: Preliminary comparison between two areas with and Without trawl Şshing. Journal of Northwest Atlantic Fishery Science, 31: 263—273.
  • Dow, R.L. 1967. Temperature limitations on the supply of northern shrimp (Pandalus borealis) in Maine (USA) waters. Proceedings Symposium on Crustacea, Marine Biological Association of India, 4: 1301-1304.
  • Farina, A.C., Freire, J. and Gurriaran, E.G. 1997. Mega benthic decapod crustacean assemblages on the Galician continental shelf and upper slope (north-west Spain). Marine Biology, 127: 419-434.
  • George, M.]. and Rao, P.V. 1966. Distribution of sex ratios of penaeid prawns in the trawl Şshery off Cochin. Proceedings Symposium on Crustacea, Marine Biological Association of India, 2: 698-700.
  • Gonzalez, E. and Olaso, I. 1987. Cambios espaciales y temporales de los crustaceos decapodo de la plataforrna continental de Galicia (NW de Espaniol). Investigacion Pesquera, 57(1): 323-341.
  • Hall, S.]. 1999. The effects of Fishing on Marine Ecosystems and Communities. Fish Biology and Aquatic Resources Series I, Blackwell Science, London, 273 pp.
  • Jennings, S. and Kaiser, M. 1988. The effects of Şshing on marine ecosystems and communities. Advances in Marine Biology, 34: 352.
  • John, C.C. and Kurian, CV. 1959. A preliminary note on the occurrence of deep water prawn and spiny lobster off the Kerala coast. Bulletin Central Research Institute. University of Kerala, Series.7 (1): 155-162.
  • Kurian, C.V. 1964. On the occurrence of the deep-water prawn Penaeopsis rectacutus (Spence Bate) off the Kerala coast. Current Science, 33(7): 216-217.
  • Kurian, C.V. 1965. Deep water prawns and lobsters off the Kerala coast. Fishery Technology, 2(1): 51—53.
  • Lagarde’ re, J.P. 1973 Distribution des Décapodes dans le sud du Golfe de. Gascogne. Revue Trav Inst. Pe Ch marit, 37: 77-95.
  • Lagarde’re, J.P. 1977. Recherches sur la distribution verticale et surl'alimentation des crustaces decapodes bentiques de la pente continentale du Golfe de Gascogne. Analyse des groupementscarcinologiques. Bulletin du Centre d'Etudes et de Recherches ScientiŞques Biarritz, 11: 367-440.
  • Leppakoski, E. 1975. Assessment of degree of pollution on the basis of macrobenthos in marine and brackish water environment. Acta Academia Aboensis, 35(B): 258-269.
  • Ludwig, A.]. and Reynolds, ].F. 1988. Statistical Ecology — A Primer on Methods and Computing. John Wiley & Sons Eds., New York, 337 pp.
  • Macpherson, E. 1991. Bio geography and community structure of the decapod crustacean fauna of Namibia (Southeast Atlantic). Journal of Crustacean Biology, 11: 401-415.
  • Markle, D.F., Dadswell, M.U. and Halliday, R.G. 1988. Demersal Şsh and decapod crustacean fauna of upper continental slope of Nova Scotia from La Havre to St. Pierre Banks. Canadian Journal of Zoology, 66:1952- 1966.
  • Mohamed, K.H. and Suseelan, C. 1973. Deep—sea prawn resources of the south-west coast of India. Proceedings Symposium of Living Resources of the Seas round India, Special publication CMFRI. India: 614-633.
  • Murawski, S.A. 2000. DeŞnitions on over Şshing from an ecosystem perspective. ICES Journal of Marine Science. 57: 649—658.
  • Olaso, I. 1990. Distribucio'n y abundancia del megabentos invertebrado en fondos de la plataforma canta'brica. Publicaciones Especiales-Instituto Espanol de Oceanografıa, 5: 11-28.
  • Rajasree, R. 2005. Systematics, Şshery, resource characteristics and bionomics of deep sea prawns off Kerala. PhD thesis, Kerala: Cochin University of Science and Technology, India.
  • Rao, RV. and Suseelan, C. 1967. On the egg and pre zoea stage of Heterocarpus woodmasom' Alcock (Crustacea, Decapoda, Pandalidae). Journal of Marine Biological Association of India, 9(1): 204-207.
  • Rasmussen, B. 1967. The Şshery for deep sea prawn in Norway. Proceedings Symposium on crustacea. Marine Biological Association of India, 4: 1437-1441.
  • Sardâ, F., Cartes, ].E. and Company, ].B. 1994. Spatio— temporal variations in mega benthos abundance in three different habitats of the Catalan deep-sea (Western Mediterranean). Marine Biology, 120: 211- 219.
  • Setubal, A.M. 1992. Structure and dynamics of benthic megafauna on the continental shelf offshore of Ubatuba, southeastem Brazil. Marine Ecology Progress Series, 86: 63—76.
  • Shanna, G.S. and Murthy, A.V.S. 1973. Prawn Şshery off the west coast of India in relation to hydrographical conditions of the shelf waters. Proceedings Symposium of Living Resources of the Seas round India, Special publication, CMFRI., India: 414-423.
  • Silas, E.G. 1969. Exploratory Şshing by R.V. Varuna. Bulletin of Central Marine Fisheries Research Institute. India, 12:1-86.
  • Smidt, E. 1967. Deep-sea prawn (Pandalus borealis Kr.) in Greenland waters: biology and Şshery. Proceedings First Workshop ScientiŞc. Results of FORV Sagar Sarnpada, 4: 1448-1453.
  • Snedecor, G.W. and Cochran, W.G. 1967. Statistical Methods. Oxford IBH Publishing Co., New Delhi, 593 pp.
  • Squires, M.] . 1968. Relation of temperature to growth and self-propagation Pandalus borealis in Newfoundland. FAO Fisheries Report, 570 (2): 243-250.
  • Suseelan, C. 1974. Observations on the deep-sea prawn Şshery off the south-west coast of India with special reference to pandalids. Journal of Marine Biological Association of India, 16(2): 491-511.
  • Suseelan, C. 1985. Studies on the deep-sea prawns off south-west coast of India. PhD thesis, Kerala: Cochin University of Science and Technology, India.
  • Suseelan, C., Nandakurnar G. and Rajan K.N. 1989. Results of bottom trawling by FORV Sagar Sarnpada with special reference to catch and abundance of edible crustaceans. Proceedings of First Workshop. ScientiŞc Results of FORV Sagar Sampada: 347-359.
  • Suseelan, C., Muthu, M.S., Rajan, K.N., Nandakumar, G., Kathiravel, M., Neelakanta Pillai, N., Surendranatha Kurup, N. and Chellappan, K. 1989. Results of an exclusive survey for the deep-sea crustaceans off southwest coast of India. Proceeding of First Workshop. ScientiŞc Results of FORV Sagar Sampada: 347-359.
  • Thompson, JR. 1967. Development of a commercial Şshery for the penaeid shrimp Hymenopenaeus robustus Smith on the continental slope of the southeastern United States. Proceedings Symposium on crustacean, Marine Biological Association of India, 4: 1454-1459.
  • Trong, PD. 1996. Zoo benthos on mangrove ecosystem on the north-west coastal zone of Tonkin Gulf. PhD thesis, Ha Noi: Pedagogic University of Ha Noi.
  • Trong, P.D., Thung, D.C., Thanh, L.T., Ken, L.V., Ngai N.D. and Thuy, L.T. 2000. Species composition, abundance and biomass distribution of 200 benthos in Vietnamese waters. Proceedings SEAFDEC seminar on Fisheries Research in the south China Sea, Area IV, Vietnamese Waters, 55-77.
  • Wenner, EL. and Boesch, DE 1979. Distribution patterns of epibenthic decapod Crustacea along the shelf-slope coenocline, Middle Atlantic Bight, USA. Bulletin of the Biological Society of Washington, 3: 106-133.
  • Wu, R.S.S. 1982. Periodic defaunation and recovery in a subtropical epi-benthic community in relation to organic pollution. Journal of Experimental Marine Biology and Ecology, 64: 253-269.
There are 47 citations in total.

Details

Primary Language Turkish
Journal Section Articles
Authors

Radhika Rajasree S. R. This is me

Publication Date April 1, 2011
Published in Issue Year 2011 Volume: 11 Issue: 2

Cite

APA R., R. R. S. (2011). Biodiversity of Deep Sea Prawns in the Upper Continental Slope of Arabian Sea, off Kerala (south west India): A Comparison Between Depths and Years. Turkish Journal of Fisheries and Aquatic Sciences, 11(2).
AMA R. RRS. Biodiversity of Deep Sea Prawns in the Upper Continental Slope of Arabian Sea, off Kerala (south west India): A Comparison Between Depths and Years. Turkish Journal of Fisheries and Aquatic Sciences. April 2011;11(2).
Chicago R., Radhika Rajasree S. “Biodiversity of Deep Sea Prawns in the Upper Continental Slope of Arabian Sea, off Kerala (south West India): A Comparison Between Depths and Years”. Turkish Journal of Fisheries and Aquatic Sciences 11, no. 2 (April 2011).
EndNote R. RRS (April 1, 2011) Biodiversity of Deep Sea Prawns in the Upper Continental Slope of Arabian Sea, off Kerala (south west India): A Comparison Between Depths and Years. Turkish Journal of Fisheries and Aquatic Sciences 11 2
IEEE R. R. S. R., “Biodiversity of Deep Sea Prawns in the Upper Continental Slope of Arabian Sea, off Kerala (south west India): A Comparison Between Depths and Years”, Turkish Journal of Fisheries and Aquatic Sciences, vol. 11, no. 2, 2011.
ISNAD R., Radhika Rajasree S. “Biodiversity of Deep Sea Prawns in the Upper Continental Slope of Arabian Sea, off Kerala (south West India): A Comparison Between Depths and Years”. Turkish Journal of Fisheries and Aquatic Sciences 11/2 (April 2011).
JAMA R. RRS. Biodiversity of Deep Sea Prawns in the Upper Continental Slope of Arabian Sea, off Kerala (south west India): A Comparison Between Depths and Years. Turkish Journal of Fisheries and Aquatic Sciences. 2011;11.
MLA R., Radhika Rajasree S. “Biodiversity of Deep Sea Prawns in the Upper Continental Slope of Arabian Sea, off Kerala (south West India): A Comparison Between Depths and Years”. Turkish Journal of Fisheries and Aquatic Sciences, vol. 11, no. 2, 2011.
Vancouver R. RRS. Biodiversity of Deep Sea Prawns in the Upper Continental Slope of Arabian Sea, off Kerala (south west India): A Comparison Between Depths and Years. Turkish Journal of Fisheries and Aquatic Sciences. 2011;11(2).