Reproductive habitat use, body-size structure and spawning season of Cobitis minamorii minamorii in paddy fields and ditches

We surveyed the reproductive ecology of Cobitis minamorii minamorii in paddy fields and ditches. The spatial distribution of females in the spawning season differed from that in the non-spawning season, even in short ditches. Eggs were collected in both ditches and paddy fields, unlike an earlier st...

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Bibliographic Details
Published in:Ichthyological research 2022-01, Vol.69 (1), p.182-188
Main Authors: Morii, Kiyohito, Kitano, Daisuque, Kanai, Ryosuke, Takakura, Koh-Ichi
Format: Article
Language:English
Subjects:
Animal Systematics/Taxonomy/Biogeography
Biomedical and Life Sciences
Body length
Body size
Cobitis minamorii
Ditches
Ecology
Eggs
Females
Fields
Freshwater & Marine Ecology
Habitat selection
Habitat utilization
Life Sciences
Probability theory
Reproduction
Rice fields
Seasons
Short Report
Spatial distribution
Spawning
Spawning seasons
Zoology
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Summary:We surveyed the reproductive ecology of Cobitis minamorii minamorii in paddy fields and ditches. The spatial distribution of females in the spawning season differed from that in the non-spawning season, even in short ditches. Eggs were collected in both ditches and paddy fields, unlike an earlier study demonstrating that no eggs were collected in ditches. The frequency distributions of standard body lengths of males and females were unimodal and bimodal, respectively. The females with a large standard body length were expected to be gravid with higher probability in May.
ISSN:1341-8998
1616-3915
DOI:10.1007/s10228-021-00826-1