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Large-scale seasonal distribution of fin whales (Balaenoptera physalus) in the central Mediterranean Sea

Published online by Cambridge University Press:  05 September 2008

Mehdi Aïssi*
Affiliation:
Department of Life Sciences, Faculty of Sciences of Bizerte, RU: Biodiversity and Functioning of Aquatic Systems, 7021 Zarzouna, Bizerte, Tunisia Department of Biology, University of Genoa, Viale Benedetto XV 5, 16132 Genoa, Italy
Antonio Celona
Affiliation:
Aquastudio Research Institute, 98121 Messina, Italy
Giorgia Comparetto
Affiliation:
Necton Marine Research Society, Via A. De Gasperi 187, 95100 Catania, Italy
Renata Mangano
Affiliation:
Necton Marine Research Society, Via A. De Gasperi 187, 95100 Catania, Italy
Maurizio Würtz
Affiliation:
Department of Biology, University of Genoa, Viale Benedetto XV 5, 16132 Genoa, Italy
Aurélie Moulins
Affiliation:
Interuniversity Research Centre for Environmental Monitoring—CIMA, Via Cadorna, 7, 17100Savona, Italy
*
Correspondence should be addressed to: Mehdi Aïssi, Department of Life Sciences, Faculty of Sciences of Bizerte, RU: Biodiversity and Functioning of Aquatic Systems, 7021 Zarzouna, Bizerte, Tunisia email: [email protected]

Abstract

Fin whales (Balaenoptera physalus) are the only mysticete regularly found in the Mediterranean Sea. Its exceptional high abundance during the summer period in the north-western Mediterranean is essentially due to productive waters, but outside of this spatio-temporal window its distribution still remains quite unknown. This paper investigates the distribution of the fin whale on large-scales during the 2002–2006 period. Three areas of the central Mediterranean Sea were selected: the Ligurian Sea in the north-western Mediterranean belonging to the Pelagos Sanctuary; the area connecting both Mediterranean basins in the south-western Mediterranean, the Strait of Messina; and the waters surrounding the island of Lampedusa, in the central Mediterranean. Of the 41,270 km covered by the three surveys, a total of 98 sightings was recorded corresponding to 198 fin whales. Results display a year round distribution along synchronic seasonal dispatching, with a feeding behaviour occurrence in the northern part of the Pelagos Sanctuary during late spring and summer. They indicate high abundance in the Lampedusa area from late winter to early spring manifesting feeding activity. In the Strait of Messina, our results point out the importance of this area as a seasonal feeding ground and an important location for regular autumn transfers between both Mediterranean basins. According to the feeding ground in the two Mediterranean basins, whales change foraging strategy, one being single animals or animal pairs searching for prey in the water column while the other strategy is associated with more individuals feeding on the surface. The strategies differ also by their ecological conditions, such as depth affinity and shoreline distance.

Type
Research Article
Copyright
Copyright © Marine Biological Association of the United Kingdom 2008

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References

REFERENCES

Anderson, V., Sardou, J. and Nival, P. (1992) The diel migrations and vertical distributions of zooplankton and micronecton in the north-western Mediterranean Sea. Euphausiids, Mysids, Decapods and Fishes. Journal of Plankton Research 14, 11291154.CrossRefGoogle Scholar
Andersen, V., Vilan, P., Ruellet, T. and Gubanova, A. (2001) Zooplankton community during the transition from spring bloom to oligotrophy in the open NW Mediterranean and effects of wind events. 2. Vertical distribution and migration. Journal of Plankton Research 23, 243271.CrossRefGoogle Scholar
Astraldi, M., Gasparini, G.P. and Sparnocchia, S. (1994) The seasonal and interannual variability in the Ligurian-Provencal Basin. Coastal Estuarine Studies 46, 93113.CrossRefGoogle Scholar
Astruc, G. and Beaubrun, P. (2001) Fin whale (Balaenoptera physalus), summer feeding in the north-western Mediterranean Sea. In Evans, P.G.H. and O'Boyle, E. (eds) Proceedings of the fifteenth annual conference of the European Cetacean Society, Rome, Italy, 6–10 May 2001. Cambridge: European Cetacean Society, pp. 289291.Google Scholar
Bérubé, M., Aguilar, A., Dendanto, D., Larsen, F., Notarbartolo di Sciara, G., Sears, R., Sigurjonsson, J., Urban, R.J. and Palsboll, P.J. (1998) Population genetic structure of North Atlantic, Mediterranean Sea and Sea of Cortez fin whale, Balaenopera physalus (Linnaeus 1758): analysis of mitochondrial and nuclear loci. Molecular Ecology 7, 585599.CrossRefGoogle Scholar
Brancato, G., Minatoli, R., Granato, A., Sidoti, O. and Guglielmo, L. (2001) Diversity and vertical migration of euphausiids across the strait of Messina area. In Faranda F.M. et al. (eds) Mediterranean ecosystems: structures and processes. Milano: Springer-Verlag Italia, pp. 131142.CrossRefGoogle Scholar
Brandt, P., Rubino, A., Alpers, W. and Backhaus, J.O. (1997) Internal waves in the Strait of Messina studied by a numerical model and synthetic aperture radar images from the ERS 1/2 satellites. Journal of Physical Oceanography 27, 648663.2.0.CO;2>CrossRefGoogle Scholar
Canese, S., Cardinali, A., Fortuna, C.M., Giusti, M., Lauriano, G., Salvati, E. and Greco, S. (2006) The first identified winter feeding ground of fin whales (Balaenoptera physalus) in the Mediterranean Sea. Journal of the Marine Biological Association of the United Kingdom 86, 903907.CrossRefGoogle Scholar
Catalano, D., Tringali, L.M., Petralia, R. and Caltavuturo, G. (2001) Mediterranean fin-whales, Balaenoptera physalus, foraging off the eastern coast of Sicily, Ionian sea. In Evans, P.G.H. and O'Boyle, E. (eds) Proceedings of the fifteenth annual conference of the European Cetacean Society,Rome, Italy6–10 May 2001. Cambridge: European Cetacean Society, pp. 5658.Google Scholar
Celona, A. and Comparetto, G. (2006) Presenza della balenottera comune Balaenoptera physalus (Linnaeus, 1758) nell'area di Lampedusa (arcipelago delle Pelagie) in relazione alla temperatura superficiale delle acque. Annales, Series Historia et Sociologia 16, 4954. [In Italian.]Google Scholar
D'Amico, A., Bergamasco, A., Carniel, S., Nacini, E., Zanasca, P., Portunato, N., Teloni, V., Mori, C. and Barbati, R. (2003) Qualitative correlation of marine mammals with physical and biological parameters in the Ligurian Sea. IEEE Journal of Oceanic Engineering 28, 2943.CrossRefGoogle Scholar
Davis, R.W., Ortega-Ortiz, J.G., Ribic, C.A., Evans, W.E., Biggs, D.C., Ressler, P.H., Cady, R.B., Leben, R.R., Mullin, K.D. and Würsing, B. (2001) Cetacean habitat in the northern Gulf of Mexico. Deep Sea Research 49, 121142.CrossRefGoogle Scholar
Forcada, J., Aguilar, A., Hammond, P., Pastor, X. and Aguilar, R. (1996) Distribution and abundance of fin whales (Balaenoptera physalus) in the western Mediterranean Sea during summer. Journal of Zoology 238, 2334.CrossRefGoogle Scholar
Forcada, J., Notarbartolo di Sciara, G. and Fabbri, F. (1995) Abundance of fin whales and striped dolphins summering in the Corso-Ligurian Basin. Mammalia 59, 127140.CrossRefGoogle Scholar
Gannier, A. (1997) Estimation de l'abondance estivale du Rorqual commun Balaenoptera physalus (Linné, 1758) dans le bassin liguro-provençal (Méditerranée nord-occidentale). Revue d'Ecologie Appliquée (Terre et la Vie) 52, 6986. [In French.]Google Scholar
Gannier, A. (1998a) Les cétacés de Méditerranée nord-occidentale: nouveaux résultats sur leur distribution, la structure de leur peuplement et l'abondance relative des différentes espèces. Mésogée 56, 319.Google Scholar
Gannier, A. (1998b) Variation saisonnière de l'affinité bathymétrique des cétacés dans le bassin liguro-provençal (Mediterranée Occidentale). Vie et Milieu 48, 2534. [In French.]Google Scholar
Gannier, A. (2002) Summer distribution of fin whales (Balaenoptera physalus) in the north-western Mediterranean marine mammals sanctuary. Revue d'Ecologie Appliquée (Terre et la Vie) 57, 135150.Google Scholar
Gannier, A. (2005) Summer activity pattern of fin whale (Balaenoptera physalus) in the northern Mediterranean Pelagos Sanctuary. Mésogée 61, 3541.Google Scholar
Guinet, C., Mate, B., Bentaleb, I., Mayzaud, P., Clotté, C.D., Taupier-Letage, I., Beaubrun, P.C., Dubroca, L. and Monestiez, P. (2007) Investigation of fin whales (Balaenoptera physalus) distribution inferred from satellite tracking and stable isotopes: conservation implications. Rapport du Trente Huitième Congrès de la Commission Internationale pour l'Exploration Scientifique de la Mer Méditerranée 38, 493.Google Scholar
Labat, J.P. and Couzin-Roudy, J. (1996) Population dynamics of the krill Meganyctiphanes norvegica (M. Sars, 1857) (Crustacea: Euphausiacea) in the Ligurian Sea (NW Mediterranean Sea). Size structure, growth and mortality modelling. Journal of Plankton Research 18, 22952312.CrossRefGoogle Scholar
Lafortuna, C.L., Jahoda, M., Azzellino, A., Saibene, F. and Colombini, A. (2003) Locomotor behaviours and respiratory pattern of the Mediterranean fin whale (Balaenoptera physalus). European Journal of Applied Physiology 90, 387395.CrossRefGoogle ScholarPubMed
Lafuente, J.G., Vargas, J.M., Criado, F., Garcia, A., Delgado, J. and Mazzola, S. (2005) Assessing the variability of hydrographic processes influencing the life cycle of the Sicilian Channel anchovy, Engraulis encrasicolus, by satellite imagery. Fisheries Oceanography 14, 3246.CrossRefGoogle Scholar
Laran, S. and Drouot-Dulau, V. (2007) Seasonal variation of striped dolphins, fin- and sperm whales' abundance in the Ligurian Sea (Mediterranean Sea). Journal of the Marine Biological Association of the United Kingdom 87, 345352.CrossRefGoogle Scholar
Marini, L., Villetti, G. and Consiglio, C. (1995) Wintering areas of fin-whales (Balaenoptera physalus) in the Mediterranean Sea: a preliminary survey. In Evans, P.G.H. and Nice, H. (eds) Proceedings of the ninth annual conference of the European Cetacean SocietyLugano, Switzerland,9–11 February 1995. Cambridge: European Cetacean Society, pp. 126128.Google Scholar
McGehee, D.E., Demer, D.A. and Warren, J.D. (2004) Zooplankton in the Ligurian Sea: Part I. Characterization of their dispersion, relative abundance and environment during summer 1999. Journal of Plankton Research 26, 14091418.CrossRefGoogle Scholar
Moulins, A., Rosso, M., Nani, B. and Würtz, M. (2007) Aspects of distribution of Cuvier's beaked whale (Ziphius cavirostris) in relation to topographic features in the Pelagos Sanctuary (north-western Mediterranean Sea). Journal of the Marine Biological Association of the United Kingdom 87, 177186.CrossRefGoogle Scholar
Orsi Relini, L., Relini, G., Cima, C., Fiorentino, F., Calandri, G., Relini, M. and Torchia, G. (1992) Una zona di tutela biologica ed un parco pelagico per i cetacei del Mar Ligure. Bollettino dei Musei e degli Istituti Biologici dell'Università di Genova 56, 247281. [In Italian.]Google Scholar
Panigada, S., Notarbartolo di Sciara, G., Zanardelli, M.P., Airoldi, S., Borsani, J.F. and Jahoda, M. (2005) Fin whale (Balaenoptera physalus) summering in the Ligurian Sea: distribution, encounter rate, mean group size and relation to physiographic variables. Journal of Cetacean Research and Management 7, 137145.Google Scholar
Panigada, S., Pesante, G., Zanardelli, M., Capoulade, F., Gannier, A. and Weinrich, M.T. (2006) Mediterranean fin whales at risk from fatal ship strikes. Marine Pollution Bulletin 52, 12871298.CrossRefGoogle ScholarPubMed
Panigada, S., Zanardelli, M., Canese, S. and Jahoda, M. (1999) How deep can baleen whales dive? Marine Ecology Progress Series 187, 309311.CrossRefGoogle Scholar
Robinson, A.R., Sellschopp, J., Warner-Varnas, A., Leslie, W.G., Lozano, C.J., Haley, P.J., Anderson, L.A. and Lermusiaux, P.F.J. (1999) The Atlantic Ionian Stream, Journal of Marine Systems 20, 129156.CrossRefGoogle Scholar
Tringali, L.M., Caltavuturo, G., Gurrieri, G. and Di Martino, V. (1999) Osservazioni preliminari sulla presenza estiva di balenottera comune (Balaenoptera physalus) e tursiope (Tursiops truncatus) nelle acque dello stretto di Messina. Biologia Marina Mediterranea 6, 619622. [In Italian.]Google Scholar
Viale, D. (1977) Big whale populations on the Atlantic coasts of Spain and the western Mediterranean. Report of the International Whaling Commission 27, 235.Google Scholar
Viale, D. (1985) Cetaceans in the North-western Mediterranean: their place in the ecosystem. In Barnes, M. (ed.) Oceanography and Marine Biology. Annual Review. Aberdeen: Aberdeen University Press, pp. 491571.Google Scholar
Woodley, T.H. and Gaskin, D.E. (1996) Environmental characteristics of North Atlantic right and fin whale habitat in the lower Bay of Fundy, Canada. Canadian Journal of Zoology 74, 7584.CrossRefGoogle Scholar