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10 results for “Phoca”
Spatiotemporal variation in pup abundance and preweaning survival of harbour seals (Phoca vitulina) in the St. Lawrence Estuary, Canada (2023)
<p class="MsoNormal"><span>Marine mammal populations worldwide greatly benefitted from conservation measures put in place since the 1970s following overexploitation, and many pinniped populations have recovered. However, threats due to bycatch, interspecific interactions or climate change remain, and detailed knowledge on vital rates, population dynamics and their responses to environmental changes is essential for efficient management and conservation of wild populations. In this study, we quantified pup abundance and survival of individually marked harbour seal (<em>Phoca vitulina</em> Linnaeus, 1758) pups during the preweaning period at Bic Island and Métis sites in the St. Lawrence Estuary from 1998 – 2019. We used mark-recapture models to evaluate competing hypotheses regarding variation in daily preweaning survival rates and capture probability during the pups' first 30 days of life. Pup abundance increased from 76 (95% CI: [59, 101]) to 323 [95% CI: 233, 338] in the past two decades at Bic Island and from 66 [95% CI:47, 91] to 285 [95% CI: 204, 218] at Métis. Preweaning survival was generally higher at Bic (0.73 [95% CI: 0.58,0.82]) than at Métis (0.68 [95% CI: 0.52,0.79]). We hypothesize that differences between habitats and human disturbance contribute to lower preweaning survival at Métis, but behavioural studies are needed to understand the impacts of disturbance on mother-pup interactions during the nursing period. </span></p>
Data from: Genetic and evolutionary divergence of harbor seals (Phoca vitulina) in Iliamna Lake, Alaska
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Spatiotemporal variation in pup abundance and preweaning survival of harbour seals (Phoca vitulina) in the St. Lawrence Estuary, Canada (2023)
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Vocal behavior in spotted seals (Phoca largha) and implications for passive acoustic monitoring
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Fig. 3 in Genetic variation in the spotted seal (Phoca largha Pallas, 1811) from the Rimsky-Korsakov Archipelago (Peter the Great Bay, western sea of Japan) as inferred from mitochondrial DNA control region sequences
Fig. 3. Consensus maximum likelihood tree demonstrating the matrilineal genealogy of some Phocidae species generated from the 460 bp mtDNA control region sequences. The numbers at branch nodes represent bootstrap support of 1000 replications for the maximum likelihood trees and posterior probabilities of 2,000,000 generations for the Bayesian trees with the same topology, respectively. The accession numbers of Phoca largha from Liaodong Bay are highlighted in bold. Scale bar indicates the relative branch lengths.
Fig. 2 in Genetic variation in the spotted seal (Phoca largha Pallas, 1811) from the Rimsky-Korsakov Archipelago (Peter the Great Bay, western sea of Japan) as inferred from mitochondrial DNA control region sequences
Fig. 2. Minimum spanning network showing the mutational relationships among Phoca largha haplotypes detected in a sample of 32 spotted seal underyearlings. The tick marks on the branches indicate mutational changes. The circle sizes correspond to the number of haplotypes. The haplotypes of groups (A) and (B) are shown in gray and white circles, respectively. The median vectors are indicated by dark dots.
On following pages: 13. Harp Seal (Pagophilus groenlandicus); 14. Harbor Seal (Phoca vitulina); 15. Spotted Seal (Phoca largha); 16. Caspian Seal (Pusa caspica); 17. Baikal Seal (Pusa sibirica); 18. Ringed Seal (Pusa hispida). in Phocidae
On following pages: 13. Harp Seal (Pagophilus groenlandicus); 14. Harbor Seal (Phoca vitulina); 15. Spotted Seal (Phoca largha); 16. Caspian Seal (Pusa caspica); 17. Baikal Seal (Pusa sibirica); 18. Ringed Seal (Pusa hispida).
Phoca Vitulina Diet Summary
<p>This data set summarizes the molecular diet data collected from Phoca Vitulina scat throught out the Salish Sea. The collection methods and analysis details are descripted in "Large scale molecular barcoding of prey DNA reveals predictors of intrapopulation feeding diversity in a marine predator", published in Ecology and Evolution.</p>
Phoca Vitulina Diet Summary
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Fig. 1 in Genetic variation in the spotted seal (Phoca largha Pallas, 1811) from the Rimsky-Korsakov Archipelago (Peter the Great Bay, western sea of Japan) as inferred from mitochondrial DNA control region sequences
Fig. 1. Map of the Phoca largha sampling site.
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International Brain Laboratory public data
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OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.