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Long-term passive acoustic monitoring revealed seasonal and diel patterns of cetacean presence in the Istanbul Strait

Published online by Cambridge University Press:  03 June 2013

Ayhan Dede ,
Ayaka Amaha Öztürk ,
Tomonari Akamatsu ,
Arda M. Tonay  and
Bayram Öztürk
Ayhan Dede*
Affiliation:
Istanbul University, Faculty of Fisheries, Department of Marine Biology Ordu Cad. No:200 Laleli, Istanbul, Turkey Turkish Marine Research Foundation (TUDAV), PO Box: 10 Beykoz, Istanbul, Turkey
Ayaka Amaha Öztürk
Affiliation:
Istanbul University, Faculty of Fisheries, Department of Marine Biology Ordu Cad. No:200 Laleli, Istanbul, Turkey Turkish Marine Research Foundation (TUDAV), PO Box: 10 Beykoz, Istanbul, Turkey
Tomonari Akamatsu
Affiliation:
National Research Institute of Fisheries Engineering, Fisheries Research Agency, Japan Japan Science and Technology Agency, CREST, Sanbancho, Chiyoda-ku, Tokyo, 102-0075, Japan
Arda M. Tonay
Affiliation:
Istanbul University, Faculty of Fisheries, Department of Marine Biology Ordu Cad. No:200 Laleli, Istanbul, Turkey Turkish Marine Research Foundation (TUDAV), PO Box: 10 Beykoz, Istanbul, Turkey
Bayram Öztürk
Affiliation:
Istanbul University, Faculty of Fisheries, Department of Marine Biology Ordu Cad. No:200 Laleli, Istanbul, Turkey Turkish Marine Research Foundation (TUDAV), PO Box: 10 Beykoz, Istanbul, Turkey
*
Correspondence should be addressed to: A. Dede, Istanbul University, Faculty of Fisheries, Department of Marine Biology Ordu Cad. No:200 Laleli, Istanbul, Turkey email: aydede@istanbul.edu.tr
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Abstract

The Istanbul Strait (Bosphorus) is a part of the Turkish Straits System, connecting the Aegean Sea and the Black Sea. There are three cetacean species in the Strait, namely the harbour porpoise (Phocoena phocoena), the common dolphin (Delphinus delphis), and the bottlenose dolphin (Tursiops truncatus). To monitor the presence of the cetaceans, a fixed stereo passive acoustic monitoring system (A-tag) was deployed in the middle of the Strait from July 2009 to September 2010. In total 26,814 click trains were detected. Presence, direction and inter-click intervals of phonating cetaceans were measured. Most click trains were detected during the night time. Diel presence pattern was prominent in March and April. In spring, the cetaceans were concentrated in one specific direction from the fixed monitoring system. In contrast, they were found in all directions for the rest of the year. Short range sonar (inter-click intervals (ICIs) less than 50 ms) was commonly detected in spring. During the rest of the year ICIs could reach up to 150 ms. All these findings suggest that they were feeding or socializing in spring and mostly travelling in the other seasons. It is well known that pelagic fish such as sprat and bluefish start their migration from the Aegean Sea to the Black Sea in spring. This study suggests that the cetaceans use the middle part of the Strait for feeding on the pelagic fish in spring when the fish migration has just started.

Keywords

Istanbul StraitcetaceaA-Tagpassive acoustic monitoringdiel patternseasonallong term monitoringcommon dolphinbottlenose dolphinharbour porpoise
Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 94 , Issue 6 , September 2014 , pp. 1195 - 1202
Copyright
Copyright © Marine Biological Association of the United Kingdom 2013 

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References

REFERENCES

Akamatsu, T., Wang, D., Nakamura, K. and Wang, K. (1998) Echolocation range of captive and free-ranging baiji; Lipotes vexillifer, finless porpoise; Neophocaena phocaenoides, and bottlenose dolphin; Tursiops truncatus. Journal of the Acoustical Society of America 104, 2511–2516.CrossRefGoogle ScholarPubMed
Akamatsu, T., Wang, D., Wang, K. and Naito, Y. (2005a) Biosonar behavior of free-ranging porpoises. Proceedings of the Royal Society B 272, 797–801.CrossRefGoogle ScholarPubMed
Akamatsu, T., Matsuda, A., Suzuki, S., Wang, D., Wang, K., Suzuki, M., Muramoto, H., Sugiyama, N. and Oota, K. (2005b) New stereo acoustic data logger for tagging on free-ranging dolphins and porpoises. Marine Technology Society Journal 39, 3–9.CrossRefGoogle Scholar
Akamatsu, T., Teilmann, J., Miller, L.A., Tougaard, J., Dietz, R., Wang, D., Wang, K., Siebert, U. and Naito, Y. (2007) Comparison of echolocation behaviour between coastal and riverine porpoises. Deep-Sea Research II 54, 290–297.CrossRefGoogle Scholar
Akamatsu, T., Wang, D., Wang, K., Li, S. and Dong, S. (2010) Scanning sonar of rolling porpoises during prey capture dives. Journal of Experimental Biology 213, 146–152.CrossRefGoogle ScholarPubMed
Au, W.W.L. (1993). The sonar of dolphins. New York: Springer.CrossRefGoogle Scholar
Avşar, D. (1994) Stomach contents of sprat (Sprattus sprattus phalericus Risso) in Turkish Black Sea coast. Turkish Journal of Zoology 18, 69–76.Google Scholar
Bartulovic, B., Lucic, D., Conides, A., Glamuzina, B., Dulcic, J., Hafner, D. and Batistic, M. (2004) Food of sand smelt, Atherina boyeri Risso 1810 (Pisces: Atherinidae) in the estuary of the Mala Neretva river (Middle-Eastern Adriatic, Croatia), Scientia Marina 68, 597–603.CrossRefGoogle Scholar
Berkes, F. (1977) Turkish dolphin fisheries. Journal of the Fauna Preservation Society, London 13, 163–167.Google Scholar
Blaxter, J.H.S. and Hunter, J.R. (1982) The biology of clupeoid fishes. Advances in Marine Biology 20, 1–223.CrossRefGoogle Scholar
Dede, A. (1999) Investigations on the marine mammals population living in the Turkish Straits System. PhD thesis. Istanbul University, Istanbul, Turkey. [In Turkish.]Google Scholar
Dede, A., Öztürk, A.A. and Tonay, A.M. (2008) Cetacean surveys in the Istanbul (Bosphorus) Strait in 2006. In Pierce, C.J., Philips, E. and Lick, R. (eds) Proceedings CD of the 22 nd Annual Conference of the European Cetacean Society, Egmond aan Zee, the Netherlands, 10–12 March 2008.Google Scholar
Fréon, P., Gerlotto, F. and Misund, O.A. (1993) Consequences of fish behaviour for stock assessment. ICES Marine Science Symposia 196, 190–195.Google Scholar
Kimura, S., Akamatsu, T., Wang, K., Wang, D., Li, S., Dong, S. and Arai, N. (2009) Comparison of stationary acoustic monitoring and visual observation of finless porpoises. Journal of the Acoustical Society of America 125, 547–553.CrossRefGoogle ScholarPubMed
Kocatas, A., Koray, T., Kaya, M. and Kara, O.F. (1993) Fisheries and environment studies in the Black Sea system. A review of the fishery resources and their environments in the Sea of Marmara. Studies and Reviews of the General Fisheries Council for the Mediterranean/FAO 64, 87–143.Google Scholar
Mellinger, D.K., Stafford, K.M., Moore, S.E., Dziak, R.P. and Matsumoto, H. (2007) An overview of fixed passive acoustic observation methods for cetacean. Oceanography 20, 36–45.CrossRefGoogle Scholar
Notarbartolo di Sciara, G. and Birkun, A. Jr (2010) Conserving whales, dolphins and porpoises in the Mediterranean and Black Seas: an ACCOBAMS Status Report. Monaco: ACCOBAMS, 212 pp.Google Scholar
Öztürk, A.A., Dede, A., Tonay, M.A. and Öztürk, B. (2009) Cetacean surveys in the İstanbul (Bosphorus) Strait in 2007–2008. In 23rd Annual Conference of the European Cetacean Society, Istanbul, Turkey, 2–4 March 2000. Istanbul: Turkish Marine Research Foundation, p. 29Google Scholar
Öztürk, B. (1995) The İstanbul Strait, a closing biological corridor. In Turkish Straits, New Problems–New Solutions. Istanbul: İSİS Ltd, 225 pp.Google Scholar
Öztürk, B. and Öztürk, A.A. (1996) On the biology of the Turkish Straits System. In Bulletin de l'Institut Océanographique. Monaco. No: Special 17, CIESM Science Series No.2, pp. 205–221.Google Scholar
Öztürk, B. and Öztürk, A.A. (1997) Preliminary study on dolphin occurrence in the Turkish Straits System. In Evans, P.G.H., Parsons, E.C.M. and Clark, S.L. (eds) Proceedings of the 11 th Annual Conference of the European Cetacean Society, Kiel–Germany, 10–12 March 1997, p. 79.Google Scholar
Öztürk, B., Öztürk, A.A. and Algan, N. (2001) Ship originated pollution in the Turkish Straits System. In Öztürk, B. and Algan, N. (eds) Proceedings of the International Symposium on the Problems of Regional Seas. Istanbul: Turkish Marine Research Foundation Publications, pp. 86–94.Google Scholar
Rasmussen, M.H., Akamatsu, T., Teilmann, J., Vikingsson, G. and Miller, L.A. (2012) Biosonar, diving and movements of two tagged white-beaked dolphin in Icelandic waters. Deep-Sea Res. II, available at: http://dx.doi.org/10.1016/j.dsr2.2012.07.011 (accessed 17 April 2013).CrossRefGoogle Scholar
Slastenenko, E.P. (1956) The fishes of the Black Sea basin. Istanbul: E.B.K. Publications, 711 pp.Google Scholar
Tičina, V., Vidjak, O. and Kačič, I. (2000) Feeding of adult sprat, Sprattus sprattus, during spawning season in the Adriatic Sea. Italian Journal of Zoology 67, 307–311.CrossRefGoogle Scholar
Tonay, A.M., Dede, A. and Öztürk, A.A. (2007a) Stomach contents of bycaught harbour porpoises (Phocoena phocoena) from the Marmara Sea. CIESM, Rapports du Commission Intérnationale Mer Méditerranée. 38, 617Google Scholar
Tonay, A.M., Dede, A., Öztürk, A.A. and Öztürk, B. (2007b) Stomach content of Harbour porpoises (Phocoena phocoena) from the Turkish Western Black Sea in spring and early summer. CIESM, Rapports du Commission Intérnationale Mer Méditerranée. 38, 616.Google Scholar
Verfuss, U.K., Miller, L.A., Pilz, P.K.D. and Schnitzler, H. (2009) Echolocation by two foraging harbour porpoises (Phocoena phocoena). Journal of Experimental Biology, 212, 823–834.CrossRefGoogle ScholarPubMed