Distribution and density of Lutraria rhynchaena Jonas, 1844 relate to sediment while reproduction shows multiple peaks per year in Cat Ba-Ha Long Bay, Vietnam

A study on Lutraria rhynchaena, a commercially valuable clam species, reveals that its distribution and density are closely tied to sediment types, with medium sand being the optimal substrate. The research, conducted from August 2017 to July 2018 in Cat Ba-Ha Long Bay, Vietnam, also identified three distinct spawning peaks per year—January, April, and September—suggesting a year-round reproductive cycle. These findings provide critical insights for sustainable fishery management, advocating for harvest bans during peak spawning months to protect the clam population's long-term viability.

Hao, D. M., Sy, D. T., Tuyet, D. T. A., Hiep, L. M., Dat, N. T., Huong, D. T. T., Thung, D. C., Nhon, D. H., Lan, T. D., & Van Quan, N. (2020). Distribution and density of Lutraria rhynchaena Jonas, 1844 relate to sediment while reproduction shows multiple peaks per year in Cat Ba-Ha Long Bay, Vietnam. Open Life Sciences, 15(1), 721–734. https://doi.org/10.1515/biol-2020-0072