[MARMAM] New publication: Spatiotemporal trends in white-beaked dolphin strandings along the North Sea coast

Mariel ten Doeschate marieltdoeschate at gmail.com
Mon Sep 24 03:33:08 PDT 2018


Dear all,

On behalf of all co-authors I am pleased to announce the publication of the
following research article in Lutra North Sea Cetacean Special Edition:

*Spatiotemporal trends in white-beaked dolphin strandings along the North
Sea coast **from 1991–2017.*
Lonneke L. IJsseldijk, Andrew Brownlow, Nicholas J. Davison, Rob Deaville,
Jan
*Haelters, Guido Keijl, Ursula Siebert & Mariel T.I. ten Doeschate. *Lutra* 61
(1): 153 - 163*

*Abstract*: *The white-beaked dolphin (Lagenorhynchus albirostris) is an
endemic species in the North Sea with an estimated population of around
36,000 individuals. Recently, concerns have been raised among
conservationists regarding increasing water temperatures as a result of
climate change, which could result in a decline in population **numbers in
certain areas of the white-beaked dolphin’s range. Here we use stranding
frequencies of white-beaked dolphins as an indicator of distribution and
investigate whether there have been spatiotemporal patterns and changes in
stranding frequencies in the south western North Sea in the last 27 years
(1991-2017). A total of 407 strandings was recorded and the distribution of
stranded animals throughout this period revealed a higher density of
animals in the southern countries in earlier years, with slightly increased
densities in the north western area more recently. This could be a first
indication of a change in habitat use and population distribution from
southern to northern regions.*
*A potential explanation for the observed shift is climate change and its
effect on prey distribution and availability. This study highlights the
potential of using stranding records as a way to collect high resolution
spatiotemporal data, making this a valuable addition to surveys of live
animals assessing species distribution and abundance. Additional research
into metrics such as causes of mortality, life history and diet parameters
(all of which are currently largely unknown for this species) would provide
a welcome contribution to assess more detailed measures of the status of
the population.*

If you would like a copy of the full article, or if you have any questions
at all, please do not hesitate to get in touch by sending an email to
marielten.doeschate at sac.co.uk  / m.t.i.tendoeschate at uu.nl


Cheers,
Mariel


*Mariel ten Doeschate MSc*

Scottish Marine Animal Stranding Scheme

SRUC Veterinary Services

Inverness IV2 4JZ

www.strandings.org

+44 (0) 7990513589
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