DISPERSAL and BYCATCH MORTALITY IN GRAY, HALICHOERUS GRYPUS, AND HARBOR, PHOCA VITULINA, SEALS TAGGED AT THE NORWEGIAN COAST

@article{Bjrge2002DISPERSALAB,
  title={DISPERSAL and BYCATCH MORTALITY IN GRAY, HALICHOERUS GRYPUS, AND HARBOR, PHOCA VITULINA, SEALS TAGGED AT THE NORWEGIAN COAST},
  author={Arne Bj{\o}rge and Nils {\O}ien and Siri Hartvedt and Gjermund B{\o}thun and Trine Bekkby},
  journal={Marine Mammal Science},
  year={2002},
  volume={18},
  pages={963-976}
}
Between 1975 and 1998, 3,571 gray and 630 harbor seal pups were tagged along the Norwegian coast, and 259 (7%) gray and 80 (13%) harbor seal tags were returned. Incidental mortality, mainly in bottom-set nets, accounted for the majority of deaths (79% in gray and 48% in harbor seals, respectively). Seals were most vulnerable to incidental mortality in fishing gear during the first three months after birth, but high incidental mortality prevailed during the first 8-10 mo. Gray seals dispersed… 

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