alexa A preliminary study on the effects of salinity on egg development of European squid (Loligo vulgarisLamarck, 1798)
Environmental Sciences

Environmental Sciences

Journal of Biodiversity & Endangered Species

Author(s): Halil Sen

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The effects of salinity on the development and incubation of European squid ( Loligo vulgaris , Lamarck, 1798) eggs were investigated from December 2001 to March 2002. The egg capsules were incubated in 37‰, 34‰, 31‰, 28‰, and 0‰ salinity without any acclimation process. Mean temperature was 12±2.0°C. Illumination was maintained at 1.5 lux at the water surface. Full embryonic development and hatching were observed after 64-76 and 66-76 days at 37‰ and 34‰ salinity, respectively. Hatching rates were estimated as 88.5% at 37‰ and 60% at 34‰. In salinity below 34‰, the eggs died at very early stages. Average dorsal mantle lengths of the new hatchlings were 2.53±0.08 mm at 37‰ and 2.48±0.11 mm at 34‰.

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This article was published in Israeli J Aquacult.-Bamidgeh and referenced in Journal of Biodiversity & Endangered Species

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