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Spawning Cycle of Two Dragonet Species, <i>Calliurichthys japonicus</i> and <i>Repomucenus huguenini</i>, in Tosa Bay, Southern Japan
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- Gonzales Benjamin Jareta
- Department of Fisheries, Faculty of Agriculture, Kochi University State Polytechnic College of Palawan-Institute of Marine Sciences
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- Taniguchi Nobuhiko
- Department of Fisheries, Faculty of Agriculture, Kochi University Corresponding author
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- Okamura Osamu
- Department of Biology, Faculty of Science, Kochi University
Bibliographic Information
- Other Title
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- Spawning Cycle of Two Dragonet Species,Calliurichthys japonicus and Repomucenus huguenini,in Tosa Bay,Southern Japan
- Spawning Cycle of Two Dragonet Species
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Description
The spawning cycle of Calliurichthys japonicus and Repomucenus huguenini was investigated from March 1992 to February 1993 in a wild population in Tosa Bay, Kochi Prefecture. Calliurichthys japonicus is an annual spawner, having high reproductive activity in summer. Thespecies appears to spawn mainly between 90-120m water depth and extends its spawning ground to shallower waters of the Bay during the peak reproductive period in July. Maturity of females occurs at 12.5cm in SL and 17.7cm SL in male. Repomucenus huguenini is a biannual spawner, spawning withinits normal distribution range of 15-30m water depth during spring (May) and autumn (October to December with a peak in November). This species matures and reproduces from an early age with maturity estimated to occur at 4.5cm SL in both sexes. The temperature in 45-120m when the Gl of C. japonicus samples was at its peak in July, ranged from 17.4-21.6°C and salinity from 34.6-35.0. During the peak reproductive season of R. huguenini in November, the temperature ranged from 22.4-22.8°C and salinity from 34.4-34.6 in 15 to 30m water depth.
Journal
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- Fisheries science
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Fisheries science 63 (1), 15-21, 1997
The Japanese Society of Fisheries Science
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Keywords
Details 詳細情報について
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- CRID
- 1390282679405167488
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- NII Article ID
- 130003902987
- 10004868465
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- NII Book ID
- AA10993718
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- NDL BIB ID
- 4153979
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- ISSN
- 09199268
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL Search
- Crossref
- CiNii Articles
- OpenAIRE
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- Abstract License Flag
- Disallowed
