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A note on the spawning and early life ecology of the pike gudgeon Pseudogobio esocinus (Cypriniformes, Cyprinidae)
| Content Provider | Semantic Scholar |
|---|---|
| Author | Nakajima, Jun |
| Copyright Year | 2015 |
| Abstract | I surveyed the temporal appearance of adult individuals and the number of flowing eggs and larvae of the pike gudgeon Pseudogobio esocinus three times for 24 h in a spawning site in Nakagawa River, northern Kyushu Island, Japan. Sixty-four adult individuals were observed, but only at night-time; females appeared between 8 :00 PM and 1 :00 AM, and males appeared between 8 :00 PM and 5 :00 AM. A total of 11,293 flowing eggs were captured, and most of the eggs were found between 9 :00 PM and 2 :00 AM. Compared with the number of flowing eggs, the number of pelagic larvae was very small. Therefore, it was assumed that the spawning of P. esocinus occurs at night between approximately 8 :00 PM and 1 :00 AM, and that the spawned eggs floating downstream but the larvae do not. |
| Starting Page | 65 |
| Ending Page | 70 |
| Page Count | 6 |
| File Format | PDF HTM / HTML |
| DOI | 10.11233/aquaculturesci.63.65 |
| Volume Number | 63 |
| Alternate Webpage(s) | https://www.jstage.jst.go.jp/article/aquaculturesci/63/1/63_65/_pdf/-char/ja |
| Alternate Webpage(s) | https://doi.org/10.11233/aquaculturesci.63.65 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
