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Osteology of Bluegill Sunfish , Lepomis macrochirus
| Content Provider | Semantic Scholar |
|---|---|
| Author | Nirmal Thakur Takahashi, Masao Murachi, Shiro |
| Copyright Year | 2016 |
| Abstract | Bluegill sunfish, Lepomis macrochirus RAFINESQ.UE, has 'distributed widely' in the various districts of Japan since the time The Crown Prince Akihito transplanted it into this country from the United States in October, 19601). Recently, at several research institutions in Japan, bluegill is being used as an experimental animal. The idea is to make it a standard experimental animal in the fisheries research2>. The use of bluegill in fisheries research, in fact, has several obvious reasons. It is a freshwater fish, has a handy size and its maintenance in the experimental tanks or aquaria is easy. Moreover, being a member of the Centrarchidae family, it represents a typical example of teleostean fish. Bluegill, as an experimental animal now, necessitates a thorough investigation to be made upon its morphological, physiological and biological normalities. In other words, there is a need to know what a normal bluegill actually is. In the literature while basic informations regarding biology ofbluegill are available in considerable detail, morphological and physiological informations are scarce. In response to this need, therefore, the present authors decided to make a comprehensive study upon its various morphological and physiological aspects. This illustrated and statistically analysed description of the osteology of bluegill, is a part of such studies. That the osteology has a great value in determining the relationships of fishes, is a too well known fact to need elaboration. The present authors are of the opinion that apart from its taxonomical value, osteological knowledge based on statistical analysis is of immense importance in securing the needed insight in the problem of natural coordination formed between the skeleton and the other organs in the fish. In the case of experimental animals particularly, such insight is rather obligatory to facilitate their meaningful surgery in the research laboratories. It was in this frame of mind that the present study was initiated. Detailed osteology ofbluegill has not been attended in particular as yet. Even upon the Centrarchidae as a whole, there is a considerable paucity of osteological informations. Researchers, working on the systematics of centrarchid fishes, have felt a need to make a comparative osteological study based upon statistical analysis in order to depict the relationship of all members of the Centrarchidae family3). The following account is supposed to fulfil a part of all such needs. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://ir.lib.hiroshima-u.ac.jp/files/public/4/41161/20160913095318523483/JFacFishAnim_10_73.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
