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Effect of a low-fat diet on body composition and blubber fatty acids of captive juvenile harp seals (Phoca groenlandica)
(2000-01)
We investigated the effects of a change from a high-fat diet to a low-fat diet of differing
fatty acid (FA) composition on the body composition and blubber FA of five captive juvenile harp
seals. Seals that had been ...
Metabolism of dietary cetoleic acid (22 : 1n-11) in mink (Mustela vison) and gray seals (Halichoerus grypus) studied using radiolabeled fatty acids
(2006-07)
Cetoleic acid (22:1n-11) is a good indicator of diet in marine predators and has proven to be an
important fatty acid (FA) when using adipose tissue FA composition to study diet in marine mammals
and seabirds. Feeding ...
Weaning mass affects changes in body composition and food intake in harbour seal pups during the first month of independence
(2003-05)
In phocid seals, the transition to nutritional independence is abrupt, with females abandoning
their offspring after weaning and returning to sea. We hypothesized that body size at weaning may
play an important role in ...
Development of the blood and muscle oxygen stores in gray seals (Halichoerus grypus): Implications for juvenile diving capacity and the necessity of a terrestrial postweaning fast
(2005-07)
To successfully transition from nursing to foraging, phocid seal pups must develop adequate
diving physiology within the limited time between birth and their first independent foraging trip to
sea. We studied the postpartum ...
Estimating fertilization success in marine benthic invertebrates: A case study with the tropical sea star Oreaster reticulatus
(2002-01)
Several factors can influence fertilization success, and for marine broadcast spawners, the main
constraint is rapid dilution of gametes. Because the measurement of fertilization success in the
field is logistically ...
Fecal production by sea urchins in native and invaded algal beds
(2009)
To examine the role of fecal production by the sea urchin Strongylocentrotus droobachiensis in
native and invaded algal assemblages in Nova Scotia, Canada, we examined the quantity (production
rate by urchin feeding ...
Body condition at weaning affects the duration of the postweaning fast in gray seal pups (Halichoerus grypus)
(2008-05)
Gray seals (Halichoerus grypus) undergo a terrestrial postweaning fast (PWF) that depletes
energy reserves acquired during the suckling interval. Plasticity in PWF duration may ensure that
pups of variable body condition ...
Identifying Canadian Freshwater Fishes through DNA Barcodes
(2008-06)
Background: DNA barcoding aims to provide an efficient method for species-level identifications
using an array of species specific molecular tags derived from the 59 region of the mitochondrial
cytochrome c oxidase I ...
Nucleotide sequence of 5S rDNA and localization of the ribosomal RNA genes to metaphase chromosomes of the Tilapiine cichlid fish, Oreochromis niloticus
(2000-10)
In this study, we report the cloning and nucleotide sequence of PCR-generated 5S rDNA from the Tilapiine cichlid fish, Oreochromis niloticus. Two types of 5S rDNA were detected that differed by insertions and/or deletions ...
Why an ecosystem approach is the wrong paradigm for the next stage of fisheries management
(2006-09-13)
Scientists from the Department of Fisheries and Oceans (DFO)
manage groundfish stocks by collecting biomass measurements that
are used to provide scientific advice on catch limits. Clearly, if the
data is uncertain or ...