Mobilisation and dynamics of energy reserves in different tissues of <i>Donax trunculus</i> (Bivalvia: Donacidae) in the Gulf of Tunis (eastern Mediterranean Sea, Tunisia)

Boussoufa, Dhouha; Chalouati, Hela; Ghazali, Nabila; Navarro, Juan Carlos; Cafsi, Mhamed El

doi:10.2989/1814232x.2021.1887761

Cited by 5 publications

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“…and Veloy Domínguez (2018) said that the sex ratio for D. trunculus could be regarded as 1:1, with only slight variations throughout the year. Some authors indicated that female clam species were more sensitive to pollution or the effort of reproduction that made their mortality males outnumber them(Gaspar et al 2002;Boussoufa et al 2015). The current study showed that monthly changes in sex ratio led to a signi cant in uence on values in the month.…”

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confidence: 45%

Annual reproductive cycle and meat yield of the Wedge Clam Donax trunculus Linnaeus, 1758 from Black Sea

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The study aims to determine the reproductive cycle, the condition index, meat yield, shell component index, shell thickness index and gonad index of bivalve Donax trunculus inhabiting the Kefken-Babalı location on the Black Sea in relation to environmental parameters between November 2013 and October 2014. Its gonadal development began in November. D. trunculus was in the inactive stage during autumn. Spawning was observed from May (18°C) to August (28°C). Sex ratios were not equal and number of males was higher during the study period (1.13:1) with one hermaphrodite individual only. Being synchronous between sexes based on histological analysis, the reproductive cycle consists of six stages. The study showed that the most ideal period to harvest of D. trunculus was between December and May, especially when the meat yield and condition index were determined to be highest.

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confidence: 45%