Reproductive Biology of Moonlight Gourami (Trichopodus microlepis) in U Minh Thuong and U Minh Ha National Parks
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Abstract
This study aimed to provide information about the reproductive biology of moonlight gourami (Trichopodus microlepsis) distributed in U Minh National Parks. Fish samples were collected monthly from January to October 2019 at two locations: U Minh Ha (UMH, Ca Mau, n=462) and U Minh Thuong (UMT, Kien Giang, n=635). Results showed that the maturation-stage ratios of females were similar between the two fish populations. Mature females (with stage IV-ovaries) and the increase in their gonadal somatic index (GIS) were found from June to October, indicating that this period is their spawning season. GSI reached the highest values in August with 8.04% in UMH and 6.44% in UMT. Female fish of the UMH population showed higher average fecundity (7,483±3,008 eggs/female) and larger egg diameter (762±55 µm) than those of UMT (6,898±2,952 eggs/female and 754±43 µm, respectively), but these differences were not significant (p>0.05).
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References
Atomar, M. A., & Nazma, E. D. (2017). Fecundity Of three spot gourami (Trichopodus Trichopterus Pallas) in Lake Lanao, Lanao Del Sur. The 16th World Lake Conference, 296–304.
Biswas, S. P. (1993). Manual of methods in fish biology. South Asian Publishers.
Boyd, C. E., & Pillai, V. K. (1985). Water Quality Management in Aquaculture. CMFRI Special Publication.
Dadzie, S., & Wangila, B. C. C. (1980). Reproductive biology, length-weight relationship and relative condition of pond raised Tilapia zilli (Gervais). Journal of Fish Biology, 17(3), 243–253. https://doi.org/10.1111/j.1095-8649.1980.tb02758.x
Duong, T. Y., Nguyen, T. N. T., Le, N. S. & Tran D. D. (2021). Morphology and genetics of fishes in U Minh National Parks. Agriculture Publishing House.
Gupta, S. (2015). A note on feeding and reproductive biology of banded gourami , Trichogaster fasciata (Bloch&Schneider, 1801). International Journal of Research in Fisheries and Aquaculture, 5(4), 147–150.
Jena, A. K., Biswas, P., & Pattanaik, S. S. (2019). Recent trends in breeding and trade of ornamental gourami in India. World Aquaculture, March, 61–64.
Kottelat, M. (2001). Fishes of Laos. WHT Publications Ltd., Colombo 5, Sri Lanka.
Low, B. W., & Lim, K. K. P. (2012). Gouramies of the genus Trichopodus in Singapore. Nature in Singapore, 5(March), 83–93.
Mitra, K., Suresh, V. R., Vinci, G. K., Mazumdar, N. N., & Biswas, D. K. (2007). Biology and fishery of banded gourami, Colisa fasciata (Bloch and Schneider 1801) in a floodplain wetland of Ganga river basin. Asian Fisheries Science, 20(January), 409–423. https://doi.org/10.33997/j.afs.2007.20.4.007
Morita, K., & Takashima, Y. (1998). Effect of female size on fecundity and egg size in white-spotted charr: comparison between sea-run and resident forms. Journal of Fish Biology, 53(5), 1140–1142. https://doi.org/10.1111/j.1095-8649.1998.tb00471.x
Nguyen, B. L. & Chung, T. V. (2017). Study on growth and reproductive biological characteristics of three spot gourami fish (Trichogaster trichopterus) in Ca Mau province. Vietnam Agricultural Science Journal, 10(83), 124–130.
Nikolsky, G. V. (1963). Ecology of fishes. London; Academic Press.
Peters, H . (1983). Fecundity, egg weight and oocyte development in tilapia (Cichlidae, Teleostei). International Center for Living Aquatic Resource Management.
Rainboth, W. J. (1996). Fishes Of The Cambodian Mekong. FAO, Rome.
Tran, D. D., Shibukawa, K., Nguyen, T. P., Ha, P. H., Tran, X. L., Mai, V. H., & Utsugi, K. (2013). Fishes of the Mekong Delta, Viet Nam. Can Tho University Publishing House.
Vietnam Forestry. (2019). Knowlegde about U Minh Ha and U Minh Thuong Forest. http://vietnamforestry.org.vn (in Vietnamese).
Weber, M. J., & Brown, M. L. (2012). Maternal effects of common carp on egg quantity and quality. Journal of Freshwater Ecology, 27, 409–417. https://doi.org/10.1080/02705060.2012.666890