Staff Publications

Staff Publications

  • external user (warningwarning)
  • Log in as
  • language uk
  • About

    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

Record number 540603
Title Beached bachelors: An extensive study on the largest recorded sperm whale Physeter macrocephalus mortality event in the North Sea
Author(s) IJsseldijk, Lonneke L.; Neer, Abbo van; Deaville, Rob; Begeman, Lineke; Bildt, Marco van de; Brand, Judith M.A. van den; Brownlow, Andrew; Czeck, Richard; Dabin, Willy; Doeschate, Mariel ten; Herder, Vanessa; Herr, Helena; IJzer, Jooske; Jauniaux, Thierry; Jensen, Lasse Fast; Jepson, Paul D.; Jo, Wendy Karen; Lakemeyer, Jan; Lehnert, Kristina; Leopold, Mardik F.; Osterhaus, Albert; Perkins, Matthew W.; Piatkowski, Uwe; Prenger-Berninghoff, Ellen; Pund, Ralf; Wohlsein, Peter; Gröne, Andrea; Siebert, Ursula
Source PLoS One 13 (2018)8. - ISSN 1932-6203
DOI https://doi.org/10.1371/journal.pone.0201221
Department(s) IMARES Onderzoeksformatie
Publication type Refereed Article in a scientific journal
Publication year 2018
Abstract

Between the 8th January and the 25th February 2016, the largest sperm whale Physeter macrocephalus mortality event ever recorded in the North Sea occurred with 30 sperm whales stranding in five countries within six weeks. All sperm whales were immature males. Groups were stratified by size, with the smaller animals stranding in the Netherlands, and the largest in England. The majority (n = 27) of the stranded animals were necropsied and/ or sampled, allowing for an international and comprehensive investigation into this mortality event. The animals were in fair to good nutritional condition and, aside from the pathologies caused by stranding, did not exhibit significant evidence of disease or trauma. Infectious agents were found, including various parasite species, several bacterial and fungal pathogens and a novel alphaherpesvirus. In nine of the sperm whales a variety of marine litter was found. However, none of these findings were considered to have been the primary cause of the stranding event. Potential anthropogenic and environmental factors that may have caused the sperm whales to enter the North Sea were assessed. Once sperm whales enter the North Sea and head south, the water becomes progressively shallower (<40 m), making this region a global hotspot for sperm whale strandings. We conclude that the reasons for sperm whales to enter the southern North Sea are the result of complex interactions of extrinsic environmental factors. As such, these large mortality events seldom have a single ultimate cause and it is only through multidisciplinary, collaborative approaches that potentially multifactorial large-scale stranding events can be effectively investigated.

Comments
There are no comments yet. You can post the first one!
Post a comment
 
Please log in to use this service. Login as Wageningen University & Research user or guest user in upper right hand corner of this page.