Notes on the Ovarian Histology of a Young Harbor Porpoise, Phocoena phocoena, Caught in Takashima, Hokkaido, Sea of Japan
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- Honma Yoshiharu
- Division of Microscopic Anatomy and Bioimaging, Department of Cellular Function, Niigata University Graduate School of Medical and Dental Sciences
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- Ushiki Tatsuo
- Division of Microscopic Anatomy and Bioimaging, Department of Cellular Function, Niigata University Graduate School of Medical and Dental Sciences
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- Takeda Masaei
- Division of Microscopic Anatomy and Bioimaging, Department of Cellular Function, Niigata University Graduate School of Medical and Dental Sciences
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- Matsuishi Takashi
- Department of Marine Biology,Graduate School of Fisheries Science,Hokkaido University
Bibliographic Information
- Other Title
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- 北海道高島沖の定置網に混獲された幼ネズミイルカの卵巣組織
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Description
<p>A histological examination was carried out on a young harbor porpoise, Phocoena phocoena (♀),1.3m long, caught in a set net installed off Takashima, Otaru City, Hokkaido, facing the Sea of Japan. The formalin-preserved left lobe of the ovary was 13mm long and 0.2g in weight, the right lobe being 20mm and 0.2g, respectively. Both lobes were smooth, flat and disc-shaped, and revealed similar microscopic conditions which confirmed the young age of the animal. The cortical region comprised a number of primordial- and primary follicles, and few secondary follicles, whereas the medullary region, consisting of a large amount of interstitial tissue, included a few vesicular and many atretic follicles, in association with spiral arteries. However, no Graaffian follicles were encountered, and the uterine glands were simple and underdeveloped.</p>
Journal
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- Japan Cetology
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Japan Cetology 16 (0), 13-19, 2006
The Cetology Study Group of Japan
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Details 詳細情報について
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- CRID
- 1390002184845731968
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- NII Article ID
- 130007757228
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- NII Book ID
- AA12177410
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- ISSN
- 24341347
- 18813445
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- NDL BIB ID
- 8583586
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Allowed