Results 21 to 30 of about 185,568 (237)
Fauna Norvegica, 1997 In the 1820’s, a relatively large harbour seal population may have inhabited the Tana River Estuary. Due to heavy persecution, especially in the 1920’s and 1930’s, it was reduced dramatically, and today there are probably less than 40 individuals left ...
Gunnar Henriksen, Kjell Moen
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The status of the harbour seal (Phoca vitulina) in Ireland
NAMMCO Scientific Publications, 2010 The status of Ireland’s harbour seal population and its relationship with that of Britain and Western Europe are poorly understood. Prior to 2003, limited research efforts and poor co-ordination of survey methods fell short at providing an accurate ...
Michelle A Cronin
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In search of virus carriers of the 1988 and 2002 phocine distemper virus outbreaks in European harbour seals [PDF]
, 2008 European harbour seal (Phoca vitulina) populations decreased substantially during the phocine distemper virus (PDV) outbreaks of 1988 and 2002. Different hypotheses have stated that various seals and terrestrial carnivore species might be the source of ...
Sonne, C. +10 more
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Are toxins from harmful algae a factor involved in the decline of harbour seal populations in Scotland? [PDF]
, 2015 Firstly this study builds on the investigation initiated by Hall and Frame (2010), which found that Scottish harbour seals were exposed to domoic acid (DA), a potent natural neurotoxin produced by phytoplankton.
Jensen, Silje-Kristin
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Parasites & Vectors, 2021 Background Belonging to the anopluran family Echinophthiriidae, Echinophthirius horridus, the seal louse, has been reported to parasitise a broad range of representatives of phocid seals.
Jörg Hirzmann +7 more
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NAMMCO Scientific Publications, 2022 Regular harbour seal (Phoca vitulina) population censuses are necessary to monitor fluctuations in the population size and to inform seal management. In this paper, the status of the Icelandic harbour seal population is presented, along with trends in ...
Sandra Magdalena Granquist
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Fauna Norvegica, 1995 During surveys in the year 1989 - 91 approximately half of the breeding and moulting populations of harbour seal in Finnmark were located in the inner parts of Porsangerfjord and Laksefjord in central Finnmark. Grey seals were observed only occationally
Gunnar Henriksen
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Deiminated Proteins and Extracellular Vesicles as Novel Biomarkers in Pinnipeds: Grey seal (Halichoerus gryptus) and Harbour seal (Phoca vitulina) [PDF]
, 2020 Peptidylarginine deiminases (PADs) are phylogenetically conserved calcium-dependent enzymes which post-translationally convert arginine into citrulline in target proteins in an irreversible manner, leading to functional and structural changes in target ...
Lange, S. +11 more
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NAMMCO Scientific Publications, 2001 The importance of a given host to a particular parasite can be determined according to three different criteria: host preference, host physiological suitability and host contribution to transmission. Most studies on the sealworm Pseudoterranova decipiens
F Javier Aznar +3 more
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Simulated seal scarer sounds scare porpoises, but not seals: species-specific responses to 12 kHz deterrence sounds [PDF]
Royal Society Open Science, 2017 Acoustic harassment devices (AHD) or ‘seal scarers’ are used extensively, not only to deter seals from fisheries, but also as mitigation tools to deter marine mammals from potentially harmful sound sources, such as offshore pile driving.
Lonnie Mikkelsen +4 more
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