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Distribution of three cetacean species along the Bulgarian Black Sea coast in 2006-2013

Year 2015, Volume: 21 Issue: 1, 45 - 53, 20.09.2015

Marina Panayotova Valentina Todorova

Abstract

AbstractOpportunistic observations of small cetacean species were made on board of fishing vessels and the 55-m research vessel "Akademik" during 20 surveys, carried out between April and November over the period 2006-2013 in the Bulgarian Black Sea territorial waters and exclusive economic zone. Over 10733 nautical miles and 1643 hours of survey effort, 289 sightings were recorded. Three cetacean species – bottlenose dolphin (Tursiops truncatus), common dolphin (Delphinus delphis) and harbour porpoise (Phocoena phocoena) were observed. The most abundant species was the bottlenose dolphin - 618 individuals recorded in 120 sightings, followed by the common dolphin – 554 individuals in 101 sightings and 251 harbour porpoises in 68 sightings. The overall encounter rate was 3.18 sightings/100 nm. The distribution of cetaceans in the Bulgarian Black Sea area was associated with the ecological conditions such as prey dynamics, hydrology, ecosystem productivity, and also with some anthropogenic activities. Due to the absence of specialized surveys on cetaceans, the available sighting data help to elucidate the distribution of cetaceans, thus provide the scientific base for the designation of marine NATURA 2000 sites in the Bulgarian Black Sea for the conservation of marine mammals listed in Annex II of the Habitats Directive.

Keywords

Keywords: Bulgarian Black Sea area cetaceans sightings distribution

References

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  • Dede, A, Tonay, A.M. (2010) Cetacean sightings in the Western Black Sea in Autumn 2007. JEPE 11(4): 1491-1494.
  • Mihaylov, K. (2011) Cetacean bycatches in turbot fisheries on the central coast of the Bulgarian Black Sea. Report of the 2nd Transversal Working Group on by-catch, Antalya, Turkey, 7-9 December 2011. General Fisheries Commission for the Mediterranean, Scientific Advisory Committee, 39 pp.
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  • Bulgarian coast. Proc. of Central Res. Inst. of Aqua. Fish. -BAS III: 183-197 (in Bulgarian). Raykov, V., Panayotova, M. (2012) Cetacean sightings off the Bulgarian Black
  • Sea coast over the period 2006-2010. JEPE 13(3A): 1824-1835.
  • Reeves, R., Notarbartolo di Sciara, G. (2006) The Status and Distribution of
  • Cetaceans in the Black Sea and Mediterranean Sea. IUCN Centre for Mediterranean Cooperation, Malaga, Spain. 137 pp. Stanev, C. (1996) Distribution and abundance of dolphins in Bulgarian marine area of the Black Sea. Proc. Inst. Fish. Varna XXIV: pp. 177-182 (in Bulgarian).
  • TDA (2007) Black Sea Transboundary Diagnostic Analysis. GEF Black Sea
  • Environmental Programme Publication, Istanbul, 269 pp. Todorova, V., Panayotova, M., Prodanov, B., Keremedchiev, S., Kotsev, I. (2013) Physical disturbance (8B02). In: National Report: Initial Assessment of
  • State of Marine Environment Regarding Art.8 of MSFD 2008/56/EC and NOOSMV, (eds., S. Moncheva,V. Todorova), vol.1. MOEW, pp. 245-258 (in Bulgarian).

Year 2015, Volume: 21 Issue: 1, 45 - 53, 20.09.2015

Marina Panayotova Valentina Todorova

Abstract

References

  • Bearzi, G. (2002) Interactions between cetaceans and fisheries Mediterranean
  • Sea. In: Cetaceans in the Mediterranean and Black Seas: State of Knowledge and Conservation Strategies (ed. G. Notarbartolo di Sciara), ACCOBAMS Secretariat, Monaco, pp. 78–97. Birkun A. (2002) Interactions between cetaceans and fisheries in the Black Sea.
  • In: Cetaceans of the Mediterranean and Black Seas: State of Knowledge and Conservation Strategies, (ed. G. Notarbartolo di Sciara), ACCOBAMS Secretariat, Monaco 10, 11 pp. Birkun, A. (2006) Cetaceans (Cetacea). In: The North-Western Black Sea:
  • Biology and Ecology, (ed. Y.P. Zaitsev), Naukova Dumka, Kiev, 703 pp. (in Russian). Birkun, A. (2008) The state of cetacean populations. In: State of Environment
  • Report 2001-2006/7, 2008-3 (ed. T. Oguz), Publication of the Commission on the Protection of the Black Sea against Pollution, Istanbul, pp. 365-395.
  • Boltachev, A.R. (2006) Trawl fishery and its effect on the bottom biocenoses in the Black Sea. Mar. Ecol. J. 3: 45-56(in Russian).
  • Dede, A, Tonay, A.M. (2010) Cetacean sightings in the Western Black Sea in Autumn 2007. JEPE 11(4): 1491-1494.
  • Mihaylov, K. (2011) Cetacean bycatches in turbot fisheries on the central coast of the Bulgarian Black Sea. Report of the 2nd Transversal Working Group on by-catch, Antalya, Turkey, 7-9 December 2011. General Fisheries Commission for the Mediterranean, Scientific Advisory Committee, 39 pp.
  • Nikolov, D. (1963) Catch and distribution of dolphin’s shoals in front of
  • Bulgarian coast. Proc. of Central Res. Inst. of Aqua. Fish. -BAS III: 183-197 (in Bulgarian). Raykov, V., Panayotova, M. (2012) Cetacean sightings off the Bulgarian Black
  • Sea coast over the period 2006-2010. JEPE 13(3A): 1824-1835.
  • Reeves, R., Notarbartolo di Sciara, G. (2006) The Status and Distribution of
  • Cetaceans in the Black Sea and Mediterranean Sea. IUCN Centre for Mediterranean Cooperation, Malaga, Spain. 137 pp. Stanev, C. (1996) Distribution and abundance of dolphins in Bulgarian marine area of the Black Sea. Proc. Inst. Fish. Varna XXIV: pp. 177-182 (in Bulgarian).
  • TDA (2007) Black Sea Transboundary Diagnostic Analysis. GEF Black Sea
  • Environmental Programme Publication, Istanbul, 269 pp. Todorova, V., Panayotova, M., Prodanov, B., Keremedchiev, S., Kotsev, I. (2013) Physical disturbance (8B02). In: National Report: Initial Assessment of
  • State of Marine Environment Regarding Art.8 of MSFD 2008/56/EC and NOOSMV, (eds., S. Moncheva,V. Todorova), vol.1. MOEW, pp. 245-258 (in Bulgarian).
There are 16 citations in total.

Details

Primary Language English
Journal Section Articles
Authors

Marina Panayotova This is me

Valentina Todorova This is me

Publication Date September 20, 2015
Published in Issue Year 2015 Volume: 21 Issue: 1

Cite

APA Panayotova, M. ., & Todorova, V. . (2015). Distribution of three cetacean species along the Bulgarian Black Sea coast in 2006-2013. Journal of Black Sea / Mediterranean Environment, 21(1), 45-53.
AMA Panayotova M, Todorova V. Distribution of three cetacean species along the Bulgarian Black Sea coast in 2006-2013. Journal of Black Sea / Mediterranean Environment. April 2015;21(1):45-53.
Chicago Panayotova, Marina, and Valentina Todorova. “Distribution of Three Cetacean Species Along the Bulgarian Black Sea Coast in 2006-2013”. Journal of Black Sea / Mediterranean Environment 21, no. 1 (April 2015): 45-53.
EndNote Panayotova M, Todorova V (April 1, 2015) Distribution of three cetacean species along the Bulgarian Black Sea coast in 2006-2013. Journal of Black Sea / Mediterranean Environment 21 1 45–53.
IEEE M. . Panayotova and V. . Todorova, “Distribution of three cetacean species along the Bulgarian Black Sea coast in 2006-2013”, Journal of Black Sea / Mediterranean Environment, vol. 21, no. 1, pp. 45–53, 2015.
ISNAD Panayotova, Marina - Todorova, Valentina. “Distribution of Three Cetacean Species Along the Bulgarian Black Sea Coast in 2006-2013”. Journal of Black Sea / Mediterranean Environment 21/1 (April 2015), 45-53.
JAMA Panayotova M, Todorova V. Distribution of three cetacean species along the Bulgarian Black Sea coast in 2006-2013. Journal of Black Sea / Mediterranean Environment. 2015;21:45–53.
MLA Panayotova, Marina and Valentina Todorova. “Distribution of Three Cetacean Species Along the Bulgarian Black Sea Coast in 2006-2013”. Journal of Black Sea / Mediterranean Environment, vol. 21, no. 1, 2015, pp. 45-53.
Vancouver Panayotova M, Todorova V. Distribution of three cetacean species along the Bulgarian Black Sea coast in 2006-2013. Journal of Black Sea / Mediterranean Environment. 2015;21(1):45-53.