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Volume 13
Issue 12
10.3390/jmse13122300
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This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Brief Report

Evidence of Inter-Regional Connectivity for Risso’s Dolphins in the Western Ionian Sea, Central Mediterranean Sea

by
Giulia Cipriano
1,2,
Maria Assunta Menniti
3,*,
Francesca Cornelia Santacesaria
4,
Carmelo Fanizza
4,
Maria Grandinetti
3,
Roberto Carlucci
1,2 and
Adriana Vella
5
1
Department of Biosciences, Biotechnology and Environment, University of Bari, 70125 Bari, Italy
2
CoNISMa—National Inter-University Consortium for Marine Sciences, 00196 Rome, Italy
3
Centro Studi e Ricerca Ambiente Marino—CESRAM, 88065 Guardavalle, Italy
4
Jonian Dolphin Conservation ETS, 74121 Taranto, Italy
5
Conservation Biology Research Group, Department of Biology, Faculty of Science, University of Malta, MSD 2080 Msida, Malta
*
Author to whom correspondence should be addressed.
J. Mar. Sci. Eng. 2025, 13(12), 2300; https://doi.org/10.3390/jmse13122300
Submission received: 19 October 2025 / Revised: 28 November 2025 / Accepted: 2 December 2025 / Published: 3 December 2025
(This article belongs to the Section Marine Ecology)
Versions Notes

Abstract

This brief report is the first comparative study of a photo-identification catalogue of the Risso’s dolphins (Grampus griseus) in the Western Ionian Sea (Central Mediterranean Sea). The positive match of two photo-identified individuals observed in two neighbouring areas in different and non-consecutive years represents the first record of Risso’s dolphin re-sightings across two Ionian sub-regions. This suggests potential inter-regional connectivity for the species, as reported in other sub-regions of the Mediterranean basin. Further, this supports the hypothesis that Risso’s dolphins use a large home range with seasonally different critical habitats, as suggested in previous studies carried out in the Western Ionian Sea.
Keywords: wildlife connectivity; cetacean corridor; Grampus griseus; Ionian Sea; photo-ID wildlife connectivity; cetacean corridor; Grampus griseus; Ionian Sea; photo-ID

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MDPI and ACS Style

Cipriano, G.; Menniti, M.A.; Santacesaria, F.C.; Fanizza, C.; Grandinetti, M.; Carlucci, R.; Vella, A. Evidence of Inter-Regional Connectivity for Risso’s Dolphins in the Western Ionian Sea, Central Mediterranean Sea. J. Mar. Sci. Eng. 2025, 13, 2300. https://doi.org/10.3390/jmse13122300

AMA Style

Cipriano G, Menniti MA, Santacesaria FC, Fanizza C, Grandinetti M, Carlucci R, Vella A. Evidence of Inter-Regional Connectivity for Risso’s Dolphins in the Western Ionian Sea, Central Mediterranean Sea. Journal of Marine Science and Engineering. 2025; 13(12):2300. https://doi.org/10.3390/jmse13122300

Chicago/Turabian Style

Cipriano, Giulia, Maria Assunta Menniti, Francesca Cornelia Santacesaria, Carmelo Fanizza, Maria Grandinetti, Roberto Carlucci, and Adriana Vella. 2025. "Evidence of Inter-Regional Connectivity for Risso’s Dolphins in the Western Ionian Sea, Central Mediterranean Sea" Journal of Marine Science and Engineering 13, no. 12: 2300. https://doi.org/10.3390/jmse13122300

APA Style

Cipriano, G., Menniti, M. A., Santacesaria, F. C., Fanizza, C., Grandinetti, M., Carlucci, R., & Vella, A. (2025). Evidence of Inter-Regional Connectivity for Risso’s Dolphins in the Western Ionian Sea, Central Mediterranean Sea. Journal of Marine Science and Engineering, 13(12), 2300. https://doi.org/10.3390/jmse13122300

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