SEED REARING OF RUDITAPES DECUSSATUS (BIVALVIA: MOLLUSCA) USING TWO CULTURE TECHNIQUES | ||||
| Al-Azhar Bulletin of Science | ||||
| Article 4, Volume 27, Issue 2-C, December 2016, Page 51-66 PDF (797.56 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/absb.2016.40813 | ||||
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| Abstract | ||||
| The carpet shell clam, Ruditapes decussatus is one of the most popular and commercially important mollusks in Egypt. This study aimed to investigate the effect of density (50, 150 and 200 ind/m2) and temperature (21 and 24 ºC) on growth performances and survival rates of Ruditapes decussatus seeds using two different techniques (racking cage and closed system). The growth performances were determined by measurement of all biometric measurements comprised shell length, height, width, total weight, soft body weight and dry weight before, through and at the end of the experiments. The best growth was recorded in density 150 ind/m2 in the racking cage. Concerning temperature experiment, the highest growth performances were recorded at 21±1ºC compared with other higher temperature | ||||
| Keywords | ||||
| Ruditapes decussatus; density; Temperature; racking cage; closed system; Growth | ||||
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