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| Autori principali: | , , , , , , , |
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| Natura: | Artículo científico |
| Lingua: | en |
| Pubblicazione: |
Animals : an open access journal from MDPI
2025
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| Accesso online: | https://pubmed.ncbi.nlm.nih.gov/41227480/ |
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| _version_ | 1868266127730147331 |
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| author | Xiang, Miao Zhao, Shasha Li, Bo Li, Li Wang, Man Wang, Jie Lin, Ruru Zhang, Lei |
| author_facet | Xiang, Miao Zhao, Shasha Li, Bo Li, Li Wang, Man Wang, Jie Lin, Ruru Zhang, Lei Xiang, Miao Zhao, Shasha Li, Bo Li, Li Wang, Man Wang, Jie Lin, Ruru Zhang, Lei |
| collection | PubMed - marine biology |
| contents | Reproductive Characteristics of : Implications for Sustainable Fisheries Management. Xiang, Miao Zhao, Shasha Li, Bo Li, Li Wang, Man Wang, Jie Lin, Ruru Zhang, Lei , a small benthic carnivorous fish endemic to the Yangtze River basin, holds considerable ecological and commercial value. However, overfishing and habitat degradation have led to a severe decline in its wild population. A lack of quantitative reproductive data has further hampered effective conservation and resource management. To address this, we conducted monthly sampling, collecting a total of 894 individuals from Nansi Lake between August 2017 and July 2018. By integrating gonadal histological staging, gonadosomatic index (GSI) analysis, logistic regression, and fecundity assessments, we provide a foundational understanding of the species' reproductive biology. The annual sex ratio was 1.06:1, with a temporary female bias in April (2.14:1) shifting due to male nest-guarding behavior. Both sexes reached maturity at one year and approximately 73.6 mm in length. Spawning occurred from March to June, peaking in May (GSI = 28.92%). Absolute fecundity ranged 2306 ± 1430 eggs and correlated positively with body size and age, while relative fecundity stabilized after age two. Individuals aged two years and older contributed over 80% of total egg production, reflecting a strategy of early maturation with high reproductive output at older ages. This study aims to systematically understand the reproductive biology of . These results support science-based measures such as Covering the entire window from gonadal maturation to fry dispersal, an annual fish ban established from March to June, a minimum catch size of 80 mm, and improved broodstock management for aquaculture and conservation efforts aimed at this and related benthic fishes in shallow lake ecosystems. |
| format | Artículo científico |
| id | pubmed_41227480 |
| institution | PubMed |
| language | en |
| publishDate | 2025 |
| publisher | Animals : an open access journal from MDPI |
| record_format | pubmed |
| spellingShingle | Reproductive Characteristics of : Implications for Sustainable Fisheries Management. Xiang, Miao Zhao, Shasha Li, Bo Li, Li Wang, Man Wang, Jie Lin, Ruru Zhang, Lei Reproductive Characteristics of : Implications for Sustainable Fisheries Management. Xiang, Miao Zhao, Shasha Li, Bo Li, Li Wang, Man Wang, Jie Lin, Ruru Zhang, Lei , a small benthic carnivorous fish endemic to the Yangtze River basin, holds considerable ecological and commercial value. However, overfishing and habitat degradation have led to a severe decline in its wild population. A lack of quantitative reproductive data has further hampered effective conservation and resource management. To address this, we conducted monthly sampling, collecting a total of 894 individuals from Nansi Lake between August 2017 and July 2018. By integrating gonadal histological staging, gonadosomatic index (GSI) analysis, logistic regression, and fecundity assessments, we provide a foundational understanding of the species' reproductive biology. The annual sex ratio was 1.06:1, with a temporary female bias in April (2.14:1) shifting due to male nest-guarding behavior. Both sexes reached maturity at one year and approximately 73.6 mm in length. Spawning occurred from March to June, peaking in May (GSI = 28.92%). Absolute fecundity ranged 2306 ± 1430 eggs and correlated positively with body size and age, while relative fecundity stabilized after age two. Individuals aged two years and older contributed over 80% of total egg production, reflecting a strategy of early maturation with high reproductive output at older ages. This study aims to systematically understand the reproductive biology of . These results support science-based measures such as Covering the entire window from gonadal maturation to fry dispersal, an annual fish ban established from March to June, a minimum catch size of 80 mm, and improved broodstock management for aquaculture and conservation efforts aimed at this and related benthic fishes in shallow lake ecosystems. |
| title | Reproductive Characteristics of : Implications for Sustainable Fisheries Management. |
| url | https://pubmed.ncbi.nlm.nih.gov/41227480/ |