Behavioral effects of environmental enrichment on harbor seals (Phoca vitulina concolor) and gray seals (Halichoerus grypus)

Zoo Biology ◽  
2002 ◽  
Vol 21 (4) ◽  
pp. 375-387 ◽  
Author(s):  
Sue A. Hunter ◽  
Monika S. Bay ◽  
Michele L. Martin ◽  
Jeff S. Hatfield
1995 ◽  
Vol 31 (4) ◽  
pp. 491-501 ◽  
Author(s):  
Pádraig J. Duignan ◽  
Jeremiah T. Saliki ◽  
David J. St. Aubin ◽  
Greg Early ◽  
Samuel Sadove ◽  
...  

2018 ◽  
Vol 49 (3) ◽  
pp. 556-563 ◽  
Author(s):  
Neele Hendrika Gundlach ◽  
Marion Schmicke ◽  
Eva Ludes-Wehrmeister ◽  
Sophia Arlena Ulrich ◽  
Marcelo Gil Araujo ◽  
...  

1974 ◽  
Vol 31 (3) ◽  
pp. 333-341 ◽  
Author(s):  
R. G. Ackman ◽  
S. N. Hooper

The fatty acids of triglycerides in the hearts from two harbor seals (Phoca vitulina) and one grey seal (Halichoerus grypus) differed quantitatively in some details from those in the blubber. The 22:1 found in the heart triglycerides was about half that in the blubber triglycerides. Isomer distributions differed within 20:1 acids in the two triglycerides for both species, the higher proportion of 20:1ω11 fatty acid deposited in the heart than in the blubber indicating more active chain shortening from 22:1. The fatty acids of phospholipids of all three hearts and livers also differed quantitatively in some fatty acid details indicating organ-specific compositions. These also differed from compositions of similar lipids in terrestrial animals in their generally marine fatty acid compositions which were established for the blubbers. The grey seal (age 3 mo) showed unusual percentages of linoleic types of acids in the organ lipids and also a curious enrichment in ω7 monoethylenic acids. Dietary factors are believed to be responsible for differences between this animal and the two harbor seals (ages 10 and 23 mo).


1984 ◽  
Vol 41 (1) ◽  
pp. 151-156 ◽  
Author(s):  
J. R. Geraci ◽  
D. j. St. Aubin ◽  
I. K. Barker ◽  
V. S. Hinshaw ◽  
R. G. Webster ◽  
...  

Six grey, Halichoerus grypus, and 12 harp, Phoca groenlandica, seals were inoculated intratracheally with lung homogenate containing influenza virus A/seal/Mass/1/80 and mycoplasma from harbor seals, Phoca vitulina, which had died in an epizootic of pneumonia. The grey seals were refractory to infection, whereas some of the harp seals developed mild pneumonia. Virus was recovered from 4 of 10 harp seals necropsied, and antibodies were produced in 2 survivors. The mycoplasma given alone to 2 grey seals did not replicate or produce infection and was recovered from only 1 of 12 harp seals inoculated. We examined 99 grey, 102 harp, 14 harbor, and 7 hooded seals (Cystophora cristata) from eastern Canada and found antibodies to avian influenza A/seal/Mass/1/80 in 3 adult male grey seals from Sable Island, N.S.; this virus is apparently adaptable to other seal species. Related forms of the virus are highly suspect as the cause of past epizootics, and one is currently responsible for a new outbreak of pneumonia in New England harbor seals.


2018 ◽  
Vol 54 (3) ◽  
pp. 439 ◽  
Author(s):  
Michiel V. Kroese ◽  
Lisa Beckers ◽  
Yvette J. W. M. Bisselink ◽  
Sophie Brasseur ◽  
Peter W. van Tulden ◽  
...  

2019 ◽  
Vol 45 (3) ◽  
pp. 349-355
Author(s):  
Ronald A. Kastelein ◽  
Robin Gransier ◽  
Marloe Brouwers ◽  
Lean Helder-Hoek

2020 ◽  
Vol 46 (2) ◽  
pp. 119-123
Author(s):  
Anders Galatius ◽  
Jonas Teilmann ◽  
Jakob Tougaard ◽  
Rune Dietz

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