Multiple matings in the blue gourami, Trichogaster trichopterus (Pisces,Belontiidae) |
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Authors: | Edward I Pollak Theresa Thompson A Lea Stabler David Keener |
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Institution: | 1. Department of Psychology West Chester State College, West Chester, Pennsylvania 19380 USA;2. Department of Biology, West Chester State College, West Chester, Pennsylvania 19380 USA |
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Abstract: | The reproductive behaviour of the blue gourami, Trichogaster trichopterus, was examined in 15 bisexual pairs and 22 trios maintained in 75-litre aquaria for 23 days. During this time, 74 spawning episodes occurred among 26 different pairs and trios. Sixty-nine of these spawnings were directly observed. Both males and females were capable of mating repeatedly with the same or different partners with as little as 20 to 24 h separating successive spawnings. Females often mated with two males in the same afternoon, while only one male succeeded in mating with two females in one day. It is concluded that blue gouramis probably do not form pair bonds and that both sexes will mate with differet partners when the physical environment permits two or more males to maintain territories in the same aquarium. |
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Keywords: | Address reprint requests to Dr Edward I Pollak Department of Psychology West Chester State College West Chester Pennsylvania 19380 |
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