Dataset Information

Mediterranean Fin Whales (Balaenoptera physalus) Threatened by Dolphin MorbilliVirus.

ABSTRACT: During 2011-2013, dolphin morbillivirus was molecularly identified in 4 stranded fin whales from the Mediterranean Sea. Nucleoprotein, phosphoprotein, and hemagglutinin gene sequences of the identified strain were highly homologous with those of a morbillivirus that caused a 2006-2007 epidemic in the Mediterranean. Dolphin morbillivirus represents a serious threat for fin whales.

SUBMITTER: Mazzariol S

PROVIDER: S-EPMC4734534 | biostudies-literature | 2016 Feb

REPOSITORIES: biostudies-literature

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Publications

Mediterranean Fin Whales (Balaenoptera physalus) Threatened by Dolphin MorbilliVirus.

Mazzariol Sandro S Centelleghe Cinzia C Beffagna Giorgia G Povinelli Michele M Terracciano Giuliana G Cocumelli Cristiano C Pintore Antonio A Denurra Daniele D Casalone Cristina C Pautasso Alessandra A Di Francesco Cristina Esmeralda CE Di Guardo Giovanni G

Emerging infectious diseases 20160201 2

During 2011-2013, dolphin morbillivirus was molecularly identified in 4 stranded fin whales from the Mediterranean Sea. Nucleoprotein, phosphoprotein, and hemagglutinin gene sequences of the identified strain were highly homologous with those of a morbillivirus that caused a 2006-2007 epidemic in the Mediterranean. Dolphin morbillivirus represents a serious threat for fin whales. ...[more]

PMID: 26812485

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Project description:Fin whales (Balaenoptera physalus) are widely considered an offshore and oceanic species, but certain populations also use coastal areas and semi-enclosed seas. Based upon fifteen years of study, we report that Canadian Pacific fin whales (B. p. velifera) have returned to the Kitimat Fjord System (KFS) in the Great Bear Rainforest, and have established a seasonally resident population in its intracoastal waters. This is the only fjord system along this coast or elsewhere in which fin whales are known to occur regularly with strong site fidelity. The KFS was also the only Canadian Pacific fjord system in which fin whales were commonly found and killed during commercial whaling, pointing to its long-term importance. Traditional knowledge, whaling records, and citizen science databases suggest that fin whales were extirpated from this area prior to their return in 2005-2006. Visual surveys and mark-recapture analysis documented their repopulation of the area, with 100-120 whales using the fjord system in recent years, as well as the establishment of a seasonally resident population with annual return rates higher than 70%. Line transect surveys identified the central and outer channels of the KFS as the primary fin whale habitat, with the greatest densities occurring in Squally Channel and Caamaño Sound. Fin whales were observed in the KFS in most months of the year. Vessel- and shore-based surveys (27,311 km and 6,572 hours of effort, respectively) indicated regular fin whale presence (2,542 detections), including mother-calf pairs, from June to October and peak abundance in late August-early September. Seasonal patterns were variable year-to-year, and several lines of evidence indicated that fin whales arrived and departed from the KFS repeatedly throughout the summer and fall. Additionally, we report on the population's social network and morphometrics. These findings offer insights into the dynamics of population recovery in an area where several marine shipping projects are proposed. The fin whales of the Great Bear Rainforest represent a rare exception to general patterns in this species' natural history, and we highlight the importance of their conservation.

Dataset Information

Mediterranean Fin Whales (Balaenoptera physalus) Threatened by Dolphin MorbilliVirus.

Publications

Mediterranean Fin Whales (Balaenoptera physalus) Threatened by Dolphin MorbilliVirus.

Similar Datasets

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