Results 1 to 10 of about 5,655 (163)
NAMMCO Scientific Publications, 2000 Diet data were collected in the Greenland Sea pack ice (the West Ice) from March to June from harp seals (Phoca groenlandica) in 1987, 1990-1992 and 1997, and from hooded seals (Cystophora cristata) in 1992 and 1994, during Soviet Russian commercial ...
Vladimir Potelev +3 more
doaj +2 more sources
Microsatellite Diversity and Fitness in Stranded Juvenile Harp Seals (Phoca groenlandica) [PDF]
Journal of Heredity, 2006 A positive relationship between genetic diversity at neutral markers and juvenile survival has been demonstrated for many vertebrate populations, although the correlation is typically weak and the explanation for it remains controversial. We assessed variation at 9-12 microsatellite loci in 65 juvenile harp seals (Phoca groenlandica) that stranded in ...
Maria, Kretzmann +4 more
openaire +3 more sources
NAMMCO Scientific Publications, 2000 Data were collected from harp seal (Phoca groenlandica) and hooded seal (Cystophora cristata) pups belonging to the Greenland Sea (or "West Ice") stocks in 1995-1997.
Tore Haug +2 more
doaj +2 more sources
Seasonal distribution of harp seals (Phoca groenlandica) in the Barents Sea
Polar Research, 1994 The distributional patterns of Barents Sea harp seals (Phoca groenlandica) throughout the year are presented based on existing literature and recent Norwegian and Russian field observations. The harp seals breed in February-March in the White Sea. Moulting occurs during April to June in the White Sea and southern Barents Sea.
Haug, Tore +3 more
openaire +4 more sources
Pseudopregnancy in harp seals (Phoca groenlandica) [PDF]
Reproduction, 1994 Concentrations of circulating progesterone were monitored in a captive breeding group of harp seals. Five females were monitored for 2 years, over which time they either became pregnant (four instances) or displayed an overt pseudopregnancy (five instances). Only one female exhibited consecutive pseudopregnancies.
D, Renouf, R, Taylor, R, Gales
openaire +2 more sources
Catch history of ringed seals (Phoca hispida) in Canada
NAMMCO Scientific Publications, 1998 The ringed seal (Phoca hispida) has always been a staple in the diet and household economy of Inuit in Canada. The present paper was prepared at the request of the NAMMCO Scientific Committee to support their assessment of ringed seal stocks in the North
Randall R Reeves +2 more
doaj +1 more source
Who eats whom in the Barents Sea?
NAMMCO Scientific Publications, 2000 An overview of the estimates of consumption by predators on the main fish stocks in the Barents Sea is given. The main predators are cod (Gadus morhua), harp seal (Phoca groenlandica) and minke whale (Balaenoptera acutorostrata).
Bjarte Bogstad +2 more
doaj +1 more source
Individuality in harp seal, Phoca groenlandica, pup vocalizations
Animal Behaviour, 2004 In gregarious breeders, parents often use individually stereotyped vocalizations as a cue to relocate offspring. Harp seals aggregate in large colonies on pack ice during the whelping season. During the 11-day lactation period, females alternate between periods at sea and attending their pup. If they use vocal cues in the relocation process, individual
van Opzeeland, Ilse, Van Parijs, S. M.
openaire +2 more sources
Food consumption estimates of Barents Sea harp seals
NAMMCO Scientific Publications, 2004 The consumption of various prey species, required by the Barents Sea harp seal (Phoca groenlandica) stock in order to cover their energy demands, has been estimated by combining data on the energy density of prey species and on seasonal variations in the
Kjell T Nilssen +3 more
doaj +1 more source
Feeding habits of harp and hooded seals in Greenland waters
NAMMCO Scientific Publications, 2000 Results of stomach contents analyses of harp and hooded seals collected in West Greenland waters in the period 1986-1993 are reviewed, and compared with published data and circumstantial information from local hunters.
Finn O Kapel
doaj +1 more source