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pro vyhledávání: '"Sergey V Zyryanov"'
Autor:
Sergey V Zyryanov, Sergey A Egorov
Publikováno v:
NAMMCO Scientific Publications, Vol 8, Iss 0, Pp 37-46 (2010)
Harbour seals are observed along the Murmansk coast of Russia, but they are not very abundant there. The estimated abundance for this area was about 500 individuals in 1998. The number of seals observed during winter months is less than during summer
Externí odkaz:
https://doaj.org/article/5dd979674cc345aebf8327f09b102201
