The effects of salinity on postlarval growth and survical of Penaeus semisulcatus (Decapoda: Penaeidae)

Yaşama ve büyüme oranları açısından, düşük tuzluluklarla kıyaslandığında, P. semisulcatus post-larvaları (PL), PL20 ve PL60 dönemleri arasında, yüksek tuzluluklarda daha iyi bir performans göstermişlerdir. Yüksek tuzluluklarda (%o30-40) deneme sonuna kadar yaşayanların yüzdeleri (%19-23) düşük tuzluluklardakinden (

Tuzluluğun Penaeus semisulcatus (Decapoda: Penaeidae)' ta postlarval büyüme ve yaşama oranı üzerine etkileri

P. semisulcatus post-larvae (PLs) had higher survival and better growth at high rather than low salinities between PL20 and PL60. Final survivals at high salinities (30-40 ppt) (19-23%) were significantly higher than those (3-12%) below 25 ppt (P 0.05). A rise in salinity resulted in an increase in the biomass from 0.020 g at 10 ppt to 0.317 g at 40 ppt (P < 0.05). Optimum salinity for the nursery culture of P. semisulcatus PLs appeared to be about 40 ppt at 28 $circ$C. Hence, the results of this study demonstrate that P. semisulcatus inhabiting the Mediterranean Sea is not a good candidate for culture in waters of low salinity.

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