飼育条件下におけるドンコの産卵生態
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概要
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Some ecological investigations on breeding of an eleotrid goby, Odontobutis obscurus, were made under rearing conditions. Multiple spawnings in a male's nest by a fixed female were observed. The mating type is discussed from the viewpoints of residentiality and nest-guarding behaviour of the male parent fish. High sensitivity (high mortality and premature hatching) of deposited eggs to the exposure to indirect natural light may be related to the shaded spawning site of this species in its natural habitat. The noticeable tolerance of the newly hatched larvae against starvation was considered to be derived from their large body size and rather developed stage at hatching.
- 日本生態学会の論文
- 1976-06-30
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