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Effect of water quality parameters and climatic influences on reproductive phenology of Macrognathus pancalus in wetland ecosystem: recommending a long-term management approach and conservation policy

Rahman, Md. Ataur ; Sultana, Mst. Afia ; Ahmed, Fee Faysal ; Hossain, Md. Yeamin

Environmental monitoring and assessment, 2024-02, Vol.196 (2), p.219-219, Article 219 [Periódico revisado por pares]

Cham: Springer International Publishing

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Título:
Effect of water quality parameters and climatic influences on reproductive phenology of Macrognathus pancalus in wetland ecosystem: recommending a long-term management approach and conservation policy
Autor: Rahman, Md. Ataur ; Sultana, Mst. Afia ; Ahmed, Fee Faysal ; Hossain, Md. Yeamin
Assuntos: Air temperature ; Alkalinity ; Animals ; Annual rainfall ; Annual temperatures ; Aquatic ecosystems ; Atmospheric Protection/Air Quality Control/Air Pollution ; Biology ; Body weight ; Calipers ; Climate ; Climate variability ; Conservation ; Dissolved oxygen ; Earth and Environmental Science ; Ecology ; Ecosystem ; Ecotoxicology ; Environment ; Environmental factors ; Environmental Management ; Environmental Monitoring ; Environmental policy ; Fecundity ; Female ; Females ; Fish ; Fish conservation ; Fishes ; Fishing ; Fishing gear ; Gonadosomatic index ; Logit models ; Macrognathus pancalus ; Male ; Males ; Monitoring/Environmental Analysis ; Oxygen ; Parameters ; Precipitation ; Rainfall ; Regression coefficients ; Reproduction ; Seasons ; Spawning ; Spawning seasons ; Subtropical climates ; Temperature effects ; Water Quality ; Wetlands
É parte de: Environmental monitoring and assessment, 2024-02, Vol.196 (2), p.219-219, Article 219
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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Descrição: The study conducted an investigation into the reproductive biology of M. pancalus and assessed the influence of water quality parameters and environmental factors on the spawning pattern within the Gajner Beel ecosystem in Bangladesh. A total of 1218 individuals of M. pancalus (46.39% males and 53.61% females) were collected monthly from the Gajner Beel during January to December 2018 using various fishing gears. The total length (TL) of each individual was measured using digital slide calipers, and the whole body weight (BW) was measured using an electronic balance. Fulton’s conditions factor ( K F ) showed significant differences between males and females. The calculated L m were 11.11 cm, 11.30 cm, and 11.10 cm based on maximum length, gonadosomatic index (GSI), and the logistic model. The spawning season extended from May through August, with June and July being peak months. The average total fecundity was 1495.52 ± 840.24, with a range of 370 to 4069. During peak spawning season, the average temperature and rainfall were 27°C and 370 mm, respectively. Rainfall, dissolved oxygen, total alkalinity, and pH all had a significant ( p < 0.01) positive effect whereas temperature and TDS all had a significant ( p > 0.01) negative effect on GSI. Annual air temperature in the study area increased by 0.053 °C/year, with a regression coefficient value ( r 2 = 0.1695), while annual mean rainfall decreased by 5.97mm/year ( r 2 = 0.076). This research will contribute to the development of conservation and management approaches of Mastacembelidae fish in relation to current climate variability in sub-tropical waters.
Editor: Cham: Springer International Publishing
Idioma: Inglês

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Effect of water quality parameters and climatic influences on reproductive phenology of Macrognathus pancalus in wetland ecosystem: recommending a long-term management approach and conservation policy

Rahman, Md. Ataur ; Sultana, Mst. Afia ; Ahmed, Fee Faysal ; Hossain, Md. Yeamin

Cham: Springer International Publishing

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