Live stranded fin whale Balaenoptera physalus in Libyan waters reported via social media platform

Live stranded fin whale Balaenoptera physalus in Libyan waters reported via social media platform

Jamila Rizgalla

 ORCID ID: 0000-0002-5699-5321

Department of Aquaculture, Faculty of Agriculture, University of Tripoli, Tripoli, LIBYA


A live movie was streamed by a recreational fisherman on social media on 2 August 2020 featuring a fin whale Balaenoptera physalus stranded alive off the coast of Bomba Bay, 70 km east of Derna, Libya. This short note highlights the importance of social media for recording and monitoring marine megafauna in remote and scarcely-surveyed regions.

Keywords: Citizen Science, megafauna, surveillance, live stream, parasites

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AAP Factcheck (2019) Social media claim image of giant whales swimming under a Malaysian bridge is fake. (accessed 23 Sept. 2020).

ACCOBAMS (2020) Fin whale. Available at: (accessed 10 Aug. 2020)

Boisseau, O., Lacey, C., Lewis, T., Moscrop, A., Danbolt, M., McLanaghan, R. (2010) Encounter rates of cetaceans in the Mediterranean Sea and contiguous Atlantic area. J Mar Biol Assoc UK 90: 1589−1599.

Cigliano, J.A., Meyer, R., Ballard, H.L., Freitag, A., Phillips, T.B., Wasser, A. (2015) Making marine and coastal citizen science matter. Ocean Coast Manag 115: 77-87.

Çiçek, E., Oktener, A., Bahadır Çapar, O. (2007) First report of Pennella balaenoptera Koren and Danielssen, 1877 (Copepoda: Pennelidae) from Turkey. Türkiye Parazitoloji Dergisi 31(3): 239-241.

Gibson, C.E., Williams, D., Dunlop, R., Beck, S. (2020) Using social media as a cost‐effective resource in the photo‐identification of a coastal bottlenose dolphin community. Aquatic Conservation: Aquat Conserv 30(8): 1702-1710.

Notarbartolo-di-Sciara, G., Castellote, M., Druon, T.-N., Panigada, S. (2016) Fin whales, Balaenoptera physalus: At home in a changing Mediterranean Sea? Advances in Marine Biology 75: 75-101.

Pace, D.S., Giacomini, G., Campana, I., Paraboschi, M., Pellegrino, G., Silvestri, M., Alessi, J., Angeletti, D., Cafaro, V., Pavan, G. (2019) An integrated approach for cetacean knowledge and conservation in the central Mediterranean Sea using research and social media data sources. Aquat Conserv 29(8): 1302-1323.

Panigada, S., Notarbartolo di Sciara, G. (2012) Balaenoptera physalus (Mediterranean subpopulation). The IUCN Red List of Threatened Species 2012: e.T16208224A17549588. (accessed on 22 Sep 2020).

Pirotta, V., Reynolds, W., Ross, G., Jonsen, I., Grech A., Slip, D., Harcourt, R. (2019) A citizen science approach to long-term monitoring of humpback whales (Megaptera novaeangliae) off Sydney, Australia. Mar Mammal Sci 36(2): 1-14.

Raga, J.A., Sanpera, C. (1986) Ectoparasites and epizoites of Balaenoptera physalus (L., 1758) in Atlantic Iberian waters. Invest Pesq (Barc.) 50(4): 489-498.

Rizgalla, J., Crocetta, F. (2020) First confirmed record of the ragged sea hare Bursatella leachii Blainville, 1817 in Libyan waters. Bioinvasions Rec 2: 183-188.

Rizgalla, J., Shinn, A.P., Ferguson, H.W., Paladini, G., Jayasuriya, N.S, Bron, J.E. (2016) A novel use of social media to evaluate the occurrence of skin lesions affecting wild dusky grouper, Epinephelus marginatus (Lowe, 1834), in Libyan coastal waters. J Fish Dis 40: 609-620.

Rossi, A., Panigada, S., Arrigoni, M., Zanardelli, M., Cimmino,C., Marangi, L., Manfredi, P., Santangelo, G. (2014) Demography and conservation of the Mediterranean fin whale (Balaenoptera physalus): what clues can be obtained from photo-identification data. Theor Biol Forum 107(1-2): 123-142.

SPA/RAC (2013) 01/13: Two cetacean strandings in Libyan coast. Available at: (accessed 9 Aug 2020).