Results 11 to 20 of about 842,321 (247)

How many seals were there? The global shelf loss during the last glacial maximum and its effect on the size and distribution of grey seal populations. [PDF]

open access: yesPLoS ONE, 2012
Predicting how marine mammal populations respond to habitat changes will be essential for developing conservation management strategies in the 21st century.
Lars Boehme   +5 more
doaj   +3 more sources

Numerical modelling of the population of grey seal (Halichoerus grypus) from the Baltic Sea in the context of reduction of damage to fishing economy

open access: yesEcological Indicators, 2021
The work is a source material for organizations dealing with the management of the aquatic environment, including regulating the population of species that pose a real threat to fishermen.
Jolanta Kiełpińska   +1 more
doaj   +1 more source

Bite injuries of grey seals (Halichoerus grypus) on harbour porpoises (Phocoena phocoena). [PDF]

open access: yesPLoS ONE, 2014
Bite-like skin lesions on harbour porpoises (Phocoena phocoena) have been suspected to be caused by grey seals (Halichoerus grypus), and a few field observations have been reported.
Thierry Jauniaux   +9 more
doaj   +1 more source

Stay close, but not too close: aerial image analysis reveals patterns of social distancing in seal colonies

open access: yesRoyal Society Open Science, 2023
Many species aggregate in dense colonies. Species-specific spatial patterns provide clues about how colonies are shaped by various (a)biotic factors, including predation, temperature regulation or disease transmission.
J. P. A. Hoekendijk   +5 more
doaj   +1 more source

Assessing grey seal (Halichoerus grypus) diet in western Scotland [PDF]

open access: yes, 2008
Grey seal diet was last comprehensively studied in western Scotland in 1985. Since then, the grey seal population has increased by approximately 30% and relative abundance of fish stocks in the area has changed markedly.
Harris, R.N.
core   +2 more sources

Response to Kiełpińska and Kowalski: A stab in a self-imposed darkness

open access: yesEcological Indicators, 2021
In a recent paper in Ecological Indicators, Kiełpińska and Kowalski (K&K) present a model aimed to facilitate culling of a large fraction of the Baltic grey seal population without sacrificing management aims with regard to distribution.
Anders Galatius   +3 more
doaj   +1 more source

The Grey Seal Halichoerus grypus (Fabricius) and the Common Seal Phoca vitulina L. in Sogn og Fjordane, western Norway

open access: yesFauna Norvegica, 1987
Grey and Common Seals in Sogn og Fjordane county, western Norway, were surveyed by boat during the summers 1985 and 1986. Thirteen Common Seal localities were recorded with a total count of 369 seals of which 53 or 14.4% were pups.
Øystein Wiig, Torger Øritsland
doaj   +1 more source

The pathology and occurrence of pathogens in Scottish grey seals (Halichoerus grypus). [PDF]

open access: yes, 2014
Neonatal mortality in grey seals on the Isle of May breeding colony and in a rehabilitation centre were investigated by detailed systematic post-mortem examinations (n=59), on-site bacteriology and advanced molecular diagnostic techniques for specific ...
Baily, Johanna L.
core   +2 more sources

Establishing the relative importance of sympatric definitive hosts in the transmission of the sealworm, Pseudoterranova decipiens: a host-community approach

open access: yesNAMMCO 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
doaj   +1 more source

The status of grey seals in Britain

open access: yesNAMMCO Scientific Publications, 2013
Grey seal pup production in Scotland was estimated through annual aerial surveys of the main grey seal breeding colonies. Between 3 and 7 counts of pups were obtained for each colony at intervals through the course of the breeding season.
C D Duck, D Thompson
doaj   +1 more source

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