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Metal Concentrations in Different Tissues of Cuttlefish (Sepia officinalis) in İskenderun Bay, Northeastern Mediterranean

Yıl 2013, Cilt: 13 Sayı: 2, - , 01.04.2013
https://doi.org/10.4194/1303-2712-v13_2_02

Öz

Metal levels (Cd, Cr, Cu, Fe, Mn, Pb and Zn) in the gill, hepatopancreas, ovary, testis and mantle of male and female c uttlefish Sepia officinalis in İskenderun Bay were investigated. All elements differ in accumulation in tissues and sex significantly (p<0.05). Concentrations of Cd in the tissues of male and female cuttlefish samples ranged between 0.12-34.7 mg/kg. Cr levels in tissues of males and females ranged between 0.59-1.26 mg/kg. Cu concentrations in all tissues were found and ranged between 8.83 and 1296 mg/kg. Fe concentrations in the mantle of female and male samples were found 0.35 and 0.36 mg/kg, respectively. Pb concentrations in the mantles of female and male samples were found between 1.74-1.79 mg/kg. The highest Zn concentrations in hepatopancreas of male and female samples were found 181 mg/kg and 272 mg/kg respectively (P<0.05). In the mantle tissue of S. officinalis, metal levels independent of sex were in the following order: Cu>Zn>Cd>Pb>Cr>Mn>Fe. In accordance with limit values, the present study found out that the mantle tissue of cuttlefish, S. officinalis, was overlimited with Cd and Pb

Kaynakça

  • Anonymous 2010. Fisheries statistics. News Bulletin State Institute of Statistics, Prime Ministry Republic of Turkey, Ankara, Turkey, 122: 2–4pp.
  • Ayas, D. and Ozogul, Y. 2011. The Effects of Season and Sex in the Metal Levels of Mature Common Cuttlefish (Sepia officinalis) in Mersin Bay, Northeastern Mediterranean. Journal of Food Science, 76(4): 121-1 doi: 1111/j.1750382011.02152.x.
  • Boletzky, S.V. 1983. Sepia o fficinalis. In: P.R. Boyle (ed.), Cephalopod Life Cycles, Academic Press, London: 31–
  • Boucaud-Camou, E. and Boismery, J. 1991. The migration of the cuttlefish Sepia o fficinalis L. in the English Channel. In: E. Boucaud-Camou (ed.), The Cuttlefish, Acta. 1st International Symposium on the Cuttlefish Sepia Caen, June 1–3, 1989. Centre de publications de l’Universite´ de Caen. pp. 179–189.
  • Bustamante, P., Cherel, Y., Caurant, F. and Miramand, P. 19 Cadmium, copper and zinc in octopuses from Kerguelen Islands, Southern Indian Ocean. Polar Biology, 19: 264–271. doi: 10.1007/s003000050244.
  • Bustamante, P., Cosson, R.P., Gallien, I., Caurant, F. and Miramand, P. 200 Cadmium detoxification processes in the digestive gland of cephalopods in relation to accumulated cadmium concentrations. Marine environmental research, 53: 227-241. doi: 1016/S0141-1136(01)00108-8
  • Bustamante, P., Teyssié, J.L., Danis, B., Fowler, S.W., Miramand, P., Cotret, O. and Warnau, M. 2004. Uptake, transfer and distribution of silver and cobalt in tissues of the common cuttlefish Sepia officinalis at different stages of its life cycle. Marine Ecology Progrrss Series, 269:185–195. doi: 3354/meps269185
  • Bustamante, P., Lahaye, V., Durnez, C., Churlaud, C. and Caurant, F. 2006. Total and organic Hg concentrations in cephalopods fro the North Eastern Atlantic waters: influence of geographical origin and feeding ecology. Science of The Total Environment, 368: 585–596. doi:1016/j.scitotenv.2006.01.038
  • Chouvelon, T., Spitz, J., Cherel, Y., Caurant, F., Sirmel, R., Mèndez-Fernandez, P. and Bustamante, P. 2011. Inter-specific and ontogenic-differences in δ13C and δ15N values and Hg and Cd concentrations of cephalopods. Marine Ecology Progress Series, 433: 107- doi: 10.3354/meps09159
  • Clarke, M.R. 1996. Cephalopods as prey. III. Cetaceans. Philosophical Transactions of the 351 Royal Society of London. Series B, Biological Sciences, 351: 105310
  • Croxall, J.P., Prince, P.A. 1996. Cephalopods as prey. I. Seabirds. Philosophical transactions of 354 the Royal Society of London. Series B, Biological Sciences, 351: 1023-1043.
  • Denis, V. and Robin, J.P. 2001. Present status of French Atlantic fishery for cuttlefish (Sepia o fficinalis). Fisheries Research, 182: 1–12. doi: 1016/S01657836(01)00227-2
  • Dunn, M.R. 1999. Aspects of the stock dynamics and exploitation of cuttlefish, Sepia o
  • fficinalis (Linnaeus, 1758), in the English Channel. Fisheries Research, 40: 277–293. doi: 1016/S0165-7836(98)00223-9 FAO (Food and Agriculture Organization) 19 Compilation of Legal Limits for Hazardous Substances in Fish and Fishery Products, FAO Fishery Circular No. 464, Rome, Italy, 764 pp.
  • FAO (Food and Agriculture Organization) 2004. The state of world fisheries and aquaculture. FAO, Rome, Italy, 153 pp.
  • FAO and WHO (Food and Agriculture Organization and World Health Organisation) 2004. Summary of Evaluations Performed by the Joint FAO/WHO Expert Committee on Food Additives (JECFA 1956– 2003), (First through sixty first meetings). ILSI Press, International Life Sciences Institute, Washington D.C. FGIS 2004. Fisheries Global Information System (FIGIS). (September, 2004). Available from http://www.fao.org/figis/servlet/FiRefServlet?ds=spec ies and fid = 2711.
  • Finger, J.M., Smith, J.D. 1987. Molecular association of Cu, Zn, Cd and Po in the digestive gland of the squid Nototodarus gouldi. Marine Biology, 95: 87-91.
  • Guerra, A. and Castro, B.G. 1994. Reproductive-somatic relationships in Loligo gahi (Cephalopoda: Loliginidae) from the Falkland Islands. Antarctic Science, 6: 175-178.
  • Klages, N.T.W. 1996. Cephalopods as prey. II. Seals. Philosophical transactions of the Royal Society of London. Series B, Biological Sciences, 351: 104510
  • Lacoue-Labarthe, T., Warnau, M., Oberhänsli, F., Teyssié, J.L., Je ffree, R. and Bustamante, P. 2008. First experiments on the maternal transfer of metals in the cuttlefish Sepia o fficinalis. Marine Pollution Bulletin, 57: 826–831. doi:10.1016/j.marpolbul.2008.01.042
  • Lourenço, H.M., Anacleto, P., Afonso, C., Ferraria, V., Martins, M.F., Carvalho, M.L., Lino, A.R. and Nunes, M.L. 2009. Elemental composition of cephalopods from Portuguese continental waters. Food Chemistry, 113: 1146-1153. doi: 1016/j.foodchem.2008.09.003.
  • Mangold, K. 1989. Mangold K, Bidder AM, Boletzky S. Appareils excre´teurs et excre´tion. In: K. Mangold (ed.), Traite´ de Zoology, Tome, V, Fascı´cule 4. Paris Masson:439– 457.
  • Miramand, P. and Bentley, D. 1992. Concentration and distribution of heavy metals in tissues of two cephalopods, Eledone cirrhosa and Sepia officinalis, from the French coast of the English Channel. Marine Biology, 114:407–414. doi: 10.1007/BF00350031
  • Miramand, P., Guary, J-C. 1980. High concentrations of some heavy metals in tissues of the Mediterranean octopus. Bulletin of Environmental Contamination and Toxicology, 24: 783-788.
  • Miramand, P., Bustamante, P., Bentley, D. and Koueta, N. 200 Variation of heavy metal concentrations (Ag, Cd, Co, Cu, Fe, Pb, V, and Zn) during the life cycle of the common cuttlefish Sepia officinalis. Science of the Total Environment, 361:132–143. doi:1016/j.scitotenv.2005.10.018
  • Napoleão, P., Pinheiro, T. and Sousa Reis, C. 2005. Elemental characterization of tissues of Octopus vulgaris along the Portuguese coast. Science of The Total Environment, 345:41–49. doi:1016/j.scitotenv.2004.10.026
  • Peake, E.B., Locke, J.C., Tierney, L.L. and Kolok, A.S. 200 Copper tolerance in fathead minnows: II. Maternal transfer. Environmental Toxicology and Chemistry, 23: 208–211. doi: 1897/02-610
  • Pereira, P., Rai mundo, J., Vale, C. and Kadar, E. 2009. Metal concentrations in digestive gland and mantle of Sepia officinalis from two coastal lagoons of Portugal. Science of The Total Environent, 407:1080–1088. doi:1016/j.scitotenv.2008.10.023.
  • Raimundo, J., Caetano, M. and Vale, C. 2004. Geographical variation and partition o metals in tissues of Octopus vulgaris along the Portuguese coast. Science of The Total Environment, 325: 71– doi:.1016/j.scitotenv.2003.12.001
  • Raimundo, J., Pereira, P., Vale, C. and Caetano, M. 2005. Fe, Zn, Cu and Cd concentrations in digestive gland and muscle tissues of Octopus vulgaris and Sepia officinalis from two coastal areas in Portugal. Ciencias Marinas, 31(1B):243–251
  • Roper, C.F.E., Sweeney, M.J. and Nauen, C.E. 1984. Cephalopods of the world. An annotated and illustrated catalogue of species of interest to fisheries. FAO Species Catalogue, vol. 3, FAO Fish. Synop. 125(3), 277 pp.
  • Sellin, M.K. and Kolok, A.S. 2006. Cadmium exposures during early development: do they lead to reproductive impairment in fathead minnows. Environmental Toxicology and Chemistry, 25: 2957– 29 doi:10.1897/05-559R1.1
  • Smale, M.J. 1996. Cephalopods as prey. IV. Fishes. Philosophical transactions of the Royal Society of London Series B, Biological Sciences, 351: 106710
  • Smith, J.D., Plues, L., Heyraud, M., Cherry, R.D. 1984. Concentrations of the elements Ag, Al, Ca, Cd, Cu, Fe, Mg, Pb and Zn, and the radionuclides Pb and Po in the digestive gland of the squid Nototodarus gouldi. Marine Environmental Research, 13: 55-68.
  • Tüzen, M. 2003. Determination of heavy metals in fish samples of the Middle Black Sea (Turkey) by graphite furnace atomic absorption spectrometry. Food Chemistry, 80: 119–123. PII: S0308-8146(02)00264-9

Metal Concentrations in Different Tissues of Cuttlefish (Sepia officinalis) in İskenderun Bay, Northeastern Mediterranean

Yıl 2013, Cilt: 13 Sayı: 2, - , 01.04.2013
https://doi.org/10.4194/1303-2712-v13_2_02

Öz

İskenderun Körfezi’nden avlanan dişi ve erkek mürekkep balıklarının (S. officinalis) solungaç, hepatopankreas, ovaryum, testis ve mantosundaki metal seviyeleri (Cd, Cr, Cu, Fe, Mn, Pb ve Zn) araştırılmıştır. İncelenen metaller, dokular ve cinsiyetler arasında önemli ölçüde farklılık göstermiştir (p<0.05). Dişi ve erkek örneklerin dokularındaki Cd içerikleri 0.59-1.26 mg/kg arasında değişmiştir. Cr seviyeleri ise 0.59-1.26 mg/kg arasında değişim göstermiştir. Erkek ve dişi bireylerin dokulardaki Cu konsantrasyonları 8.83 ve 1296 mg/kg arasında bulunmuştur. Dişi ve erkek bireylerin Fe konsantrasyonları sırasıyla 0.35 ve 0.36 mg/kg olarak bulunmuştur. Dişi ve erkek örneklerdeki Pb konsantrasyonları 1.74-1.79 mg/kg bulunmuştur. Dişi ve erkek bireylerin hepatopankreasındaki en yüksek Zn konsantrasyonları sırasıyla 181 mg/kg ve 272 mg/kg (P<0.05). S. officinalis bireylerinin manto dokusunda birikim gösteren ağır metal seviyeleri sırasıylaCu>Zn>Cd>Pb>Cr>Mn>Fe olarak tespit edilmiştir. Mürekkep balığının manto dokusunda birikim gösteren Cd ve Pb değerleri limit değerlerinin üzerinde bulunmuştur.

Kaynakça

  • Anonymous 2010. Fisheries statistics. News Bulletin State Institute of Statistics, Prime Ministry Republic of Turkey, Ankara, Turkey, 122: 2–4pp.
  • Ayas, D. and Ozogul, Y. 2011. The Effects of Season and Sex in the Metal Levels of Mature Common Cuttlefish (Sepia officinalis) in Mersin Bay, Northeastern Mediterranean. Journal of Food Science, 76(4): 121-1 doi: 1111/j.1750382011.02152.x.
  • Boletzky, S.V. 1983. Sepia o fficinalis. In: P.R. Boyle (ed.), Cephalopod Life Cycles, Academic Press, London: 31–
  • Boucaud-Camou, E. and Boismery, J. 1991. The migration of the cuttlefish Sepia o fficinalis L. in the English Channel. In: E. Boucaud-Camou (ed.), The Cuttlefish, Acta. 1st International Symposium on the Cuttlefish Sepia Caen, June 1–3, 1989. Centre de publications de l’Universite´ de Caen. pp. 179–189.
  • Bustamante, P., Cherel, Y., Caurant, F. and Miramand, P. 19 Cadmium, copper and zinc in octopuses from Kerguelen Islands, Southern Indian Ocean. Polar Biology, 19: 264–271. doi: 10.1007/s003000050244.
  • Bustamante, P., Cosson, R.P., Gallien, I., Caurant, F. and Miramand, P. 200 Cadmium detoxification processes in the digestive gland of cephalopods in relation to accumulated cadmium concentrations. Marine environmental research, 53: 227-241. doi: 1016/S0141-1136(01)00108-8
  • Bustamante, P., Teyssié, J.L., Danis, B., Fowler, S.W., Miramand, P., Cotret, O. and Warnau, M. 2004. Uptake, transfer and distribution of silver and cobalt in tissues of the common cuttlefish Sepia officinalis at different stages of its life cycle. Marine Ecology Progrrss Series, 269:185–195. doi: 3354/meps269185
  • Bustamante, P., Lahaye, V., Durnez, C., Churlaud, C. and Caurant, F. 2006. Total and organic Hg concentrations in cephalopods fro the North Eastern Atlantic waters: influence of geographical origin and feeding ecology. Science of The Total Environment, 368: 585–596. doi:1016/j.scitotenv.2006.01.038
  • Chouvelon, T., Spitz, J., Cherel, Y., Caurant, F., Sirmel, R., Mèndez-Fernandez, P. and Bustamante, P. 2011. Inter-specific and ontogenic-differences in δ13C and δ15N values and Hg and Cd concentrations of cephalopods. Marine Ecology Progress Series, 433: 107- doi: 10.3354/meps09159
  • Clarke, M.R. 1996. Cephalopods as prey. III. Cetaceans. Philosophical Transactions of the 351 Royal Society of London. Series B, Biological Sciences, 351: 105310
  • Croxall, J.P., Prince, P.A. 1996. Cephalopods as prey. I. Seabirds. Philosophical transactions of 354 the Royal Society of London. Series B, Biological Sciences, 351: 1023-1043.
  • Denis, V. and Robin, J.P. 2001. Present status of French Atlantic fishery for cuttlefish (Sepia o fficinalis). Fisheries Research, 182: 1–12. doi: 1016/S01657836(01)00227-2
  • Dunn, M.R. 1999. Aspects of the stock dynamics and exploitation of cuttlefish, Sepia o
  • fficinalis (Linnaeus, 1758), in the English Channel. Fisheries Research, 40: 277–293. doi: 1016/S0165-7836(98)00223-9 FAO (Food and Agriculture Organization) 19 Compilation of Legal Limits for Hazardous Substances in Fish and Fishery Products, FAO Fishery Circular No. 464, Rome, Italy, 764 pp.
  • FAO (Food and Agriculture Organization) 2004. The state of world fisheries and aquaculture. FAO, Rome, Italy, 153 pp.
  • FAO and WHO (Food and Agriculture Organization and World Health Organisation) 2004. Summary of Evaluations Performed by the Joint FAO/WHO Expert Committee on Food Additives (JECFA 1956– 2003), (First through sixty first meetings). ILSI Press, International Life Sciences Institute, Washington D.C. FGIS 2004. Fisheries Global Information System (FIGIS). (September, 2004). Available from http://www.fao.org/figis/servlet/FiRefServlet?ds=spec ies and fid = 2711.
  • Finger, J.M., Smith, J.D. 1987. Molecular association of Cu, Zn, Cd and Po in the digestive gland of the squid Nototodarus gouldi. Marine Biology, 95: 87-91.
  • Guerra, A. and Castro, B.G. 1994. Reproductive-somatic relationships in Loligo gahi (Cephalopoda: Loliginidae) from the Falkland Islands. Antarctic Science, 6: 175-178.
  • Klages, N.T.W. 1996. Cephalopods as prey. II. Seals. Philosophical transactions of the Royal Society of London. Series B, Biological Sciences, 351: 104510
  • Lacoue-Labarthe, T., Warnau, M., Oberhänsli, F., Teyssié, J.L., Je ffree, R. and Bustamante, P. 2008. First experiments on the maternal transfer of metals in the cuttlefish Sepia o fficinalis. Marine Pollution Bulletin, 57: 826–831. doi:10.1016/j.marpolbul.2008.01.042
  • Lourenço, H.M., Anacleto, P., Afonso, C., Ferraria, V., Martins, M.F., Carvalho, M.L., Lino, A.R. and Nunes, M.L. 2009. Elemental composition of cephalopods from Portuguese continental waters. Food Chemistry, 113: 1146-1153. doi: 1016/j.foodchem.2008.09.003.
  • Mangold, K. 1989. Mangold K, Bidder AM, Boletzky S. Appareils excre´teurs et excre´tion. In: K. Mangold (ed.), Traite´ de Zoology, Tome, V, Fascı´cule 4. Paris Masson:439– 457.
  • Miramand, P. and Bentley, D. 1992. Concentration and distribution of heavy metals in tissues of two cephalopods, Eledone cirrhosa and Sepia officinalis, from the French coast of the English Channel. Marine Biology, 114:407–414. doi: 10.1007/BF00350031
  • Miramand, P., Guary, J-C. 1980. High concentrations of some heavy metals in tissues of the Mediterranean octopus. Bulletin of Environmental Contamination and Toxicology, 24: 783-788.
  • Miramand, P., Bustamante, P., Bentley, D. and Koueta, N. 200 Variation of heavy metal concentrations (Ag, Cd, Co, Cu, Fe, Pb, V, and Zn) during the life cycle of the common cuttlefish Sepia officinalis. Science of the Total Environment, 361:132–143. doi:1016/j.scitotenv.2005.10.018
  • Napoleão, P., Pinheiro, T. and Sousa Reis, C. 2005. Elemental characterization of tissues of Octopus vulgaris along the Portuguese coast. Science of The Total Environment, 345:41–49. doi:1016/j.scitotenv.2004.10.026
  • Peake, E.B., Locke, J.C., Tierney, L.L. and Kolok, A.S. 200 Copper tolerance in fathead minnows: II. Maternal transfer. Environmental Toxicology and Chemistry, 23: 208–211. doi: 1897/02-610
  • Pereira, P., Rai mundo, J., Vale, C. and Kadar, E. 2009. Metal concentrations in digestive gland and mantle of Sepia officinalis from two coastal lagoons of Portugal. Science of The Total Environent, 407:1080–1088. doi:1016/j.scitotenv.2008.10.023.
  • Raimundo, J., Caetano, M. and Vale, C. 2004. Geographical variation and partition o metals in tissues of Octopus vulgaris along the Portuguese coast. Science of The Total Environment, 325: 71– doi:.1016/j.scitotenv.2003.12.001
  • Raimundo, J., Pereira, P., Vale, C. and Caetano, M. 2005. Fe, Zn, Cu and Cd concentrations in digestive gland and muscle tissues of Octopus vulgaris and Sepia officinalis from two coastal areas in Portugal. Ciencias Marinas, 31(1B):243–251
  • Roper, C.F.E., Sweeney, M.J. and Nauen, C.E. 1984. Cephalopods of the world. An annotated and illustrated catalogue of species of interest to fisheries. FAO Species Catalogue, vol. 3, FAO Fish. Synop. 125(3), 277 pp.
  • Sellin, M.K. and Kolok, A.S. 2006. Cadmium exposures during early development: do they lead to reproductive impairment in fathead minnows. Environmental Toxicology and Chemistry, 25: 2957– 29 doi:10.1897/05-559R1.1
  • Smale, M.J. 1996. Cephalopods as prey. IV. Fishes. Philosophical transactions of the Royal Society of London Series B, Biological Sciences, 351: 106710
  • Smith, J.D., Plues, L., Heyraud, M., Cherry, R.D. 1984. Concentrations of the elements Ag, Al, Ca, Cd, Cu, Fe, Mg, Pb and Zn, and the radionuclides Pb and Po in the digestive gland of the squid Nototodarus gouldi. Marine Environmental Research, 13: 55-68.
  • Tüzen, M. 2003. Determination of heavy metals in fish samples of the Middle Black Sea (Turkey) by graphite furnace atomic absorption spectrometry. Food Chemistry, 80: 119–123. PII: S0308-8146(02)00264-9
Toplam 35 adet kaynakça vardır.

Ayrıntılar

Birincil Dil Türkçe
Bölüm Makaleler
Yazarlar

Önder Duysak Bu kişi benim

Beyza Ersoy Bu kişi benim

Meltem Dural1. Bu kişi benim

Yayımlanma Tarihi 1 Nisan 2013
Yayımlandığı Sayı Yıl 2013 Cilt: 13 Sayı: 2

Kaynak Göster

APA Duysak, Ö., Ersoy, B., & Dural1., M. (2013). Metal Concentrations in Different Tissues of Cuttlefish (Sepia officinalis) in İskenderun Bay, Northeastern Mediterranean. Turkish Journal of Fisheries and Aquatic Sciences, 13(2). https://doi.org/10.4194/1303-2712-v13_2_02
AMA Duysak Ö, Ersoy B, Dural1. M. Metal Concentrations in Different Tissues of Cuttlefish (Sepia officinalis) in İskenderun Bay, Northeastern Mediterranean. Turkish Journal of Fisheries and Aquatic Sciences. Nisan 2013;13(2). doi:10.4194/1303-2712-v13_2_02
Chicago Duysak, Önder, Beyza Ersoy, ve Meltem Dural1. “Metal Concentrations in Different Tissues of Cuttlefish (Sepia Officinalis) in İskenderun Bay, Northeastern Mediterranean”. Turkish Journal of Fisheries and Aquatic Sciences 13, sy. 2 (Nisan 2013). https://doi.org/10.4194/1303-2712-v13_2_02.
EndNote Duysak Ö, Ersoy B, Dural1. M (01 Nisan 2013) Metal Concentrations in Different Tissues of Cuttlefish (Sepia officinalis) in İskenderun Bay, Northeastern Mediterranean. Turkish Journal of Fisheries and Aquatic Sciences 13 2
IEEE Ö. Duysak, B. Ersoy, ve M. Dural1., “Metal Concentrations in Different Tissues of Cuttlefish (Sepia officinalis) in İskenderun Bay, Northeastern Mediterranean”, Turkish Journal of Fisheries and Aquatic Sciences, c. 13, sy. 2, 2013, doi: 10.4194/1303-2712-v13_2_02.
ISNAD Duysak, Önder vd. “Metal Concentrations in Different Tissues of Cuttlefish (Sepia Officinalis) in İskenderun Bay, Northeastern Mediterranean”. Turkish Journal of Fisheries and Aquatic Sciences 13/2 (Nisan 2013). https://doi.org/10.4194/1303-2712-v13_2_02.
JAMA Duysak Ö, Ersoy B, Dural1. M. Metal Concentrations in Different Tissues of Cuttlefish (Sepia officinalis) in İskenderun Bay, Northeastern Mediterranean. Turkish Journal of Fisheries and Aquatic Sciences. 2013;13. doi:10.4194/1303-2712-v13_2_02.
MLA Duysak, Önder vd. “Metal Concentrations in Different Tissues of Cuttlefish (Sepia Officinalis) in İskenderun Bay, Northeastern Mediterranean”. Turkish Journal of Fisheries and Aquatic Sciences, c. 13, sy. 2, 2013, doi:10.4194/1303-2712-v13_2_02.
Vancouver Duysak Ö, Ersoy B, Dural1. M. Metal Concentrations in Different Tissues of Cuttlefish (Sepia officinalis) in İskenderun Bay, Northeastern Mediterranean. Turkish Journal of Fisheries and Aquatic Sciences. 2013;13(2).