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博士論文

北海道沿岸に生息するゼニガタアザラシ Phoca vitulina stejnegeri とゴマフアザラシ Phoca largha の頭蓋骨形態および遺伝学的比較

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北海道沿岸に生息するゼニガタアザラシ Phoca vitulina stejnegeri とゴマフアザラシ Phoca largha の頭蓋骨形態および遺伝学的比較

Material type
博士論文
Author
中川, 惠美子
Publisher
Hokkaido University
Publication date
2010-03-25
Material Format
Digital
Capacity, size, etc.
-
Name of awarding university/degree
北海道大学,博士(獣医学)
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Detailed bibliographic record

Summary, etc.:

北海道沿岸には5種のアザラシ類が生息あるいは回遊しており,中でも個体数が多いのがゼニガタアザラシおよびゴマフアザラシである.近年,両種ともに個体数の増加が報告されており,それに伴って沿岸漁業への被害や混獲によるアザラシの死亡個体数も増加している.沿岸生態系において高次捕食者に位置するアザラシ類の個体...

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Digital

Material Type
博士論文
Author/Editor
中川, 惠美子
Author Heading
Publication, Distribution, etc.
Publication Date
2010-03-25
Publication Date (W3CDTF)
2010-03-25
Alternative Title
Skull morphology and genetic variation of the Kuril harbor seal (Phoca vitulina stejnegeri) and the spotted seal (Phoca largha) around Hokkaido, Japan
Degree grantor/type
北海道大学
Date Granted
2010-03-25