Relative growth and reproductive cycle of the hermaphroditic Cardites antiquatus (Mollusca: Bivalvia) collected from the Bizerte channel (northern Tunisia)

Béjaoui, Jihen Maatoug; Kefi, Ferdaous Jaafar; Lassoued, Amal; Menif, Najoua Trigui El

doi:10.1515/biolog-2017-0135

Cited by 4 publications

(1 citation statement)

References 27 publications

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“…It seems that gametogenesis of clams was affected by local environmental conditions. In temperate waters, rising temperatures in summer months can synchronise the ripe and spawning stages of bivalve molluscs [ 16 , 30 , 31 , 32 , 33 , 34 , 35 , 36 ]. According to Nelson (1928) [ 32 ], spawning of bivalve molluscs occurs on a rising temperature, but maturation progress is triggered at a temperature slightly below that in which spawning occurs.…”

Section: Discussionmentioning

confidence: 99%

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

Hao

Tuyet

et al. 2020

Open Life Sciences

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Lutraria rhynchaena Jonas, 1844 is of great commercial interest, but its reserves have dramatically declined over recent decades. Therefore, there is an urgent need of scientific basis to propose effective fishery management measures and improve artificial aquaculture of the clam. In this study, we investigated the distribution and density of L. rhynchaena, sediment characteristics, and established the clam’s reproductive cycle through monthly observations from August 2017 to July 2018. The study results showed that distribution and density of clams are related to sediment types, and the sediment type of medium sand is likely the best benthic substrate for the clams. The spawning of clams occurred throughout the year with three spawning peaks in January, April and September. For the sustainable management of the clam resource in Cat Ba-Ha Long Bay, the fishery authorities can issue a ban on harvest of the clam in spawning peak months in January, April and September.

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