Title: Note on the adaptability of silver carp — Hypophthalmichthys molitrix (Val.) — and grass carp — Ctenopharyingodon idella (Val.) — To various saline concentrations
Abstract: A preliminary investigation was carried out to determine the feasibility of rearing two species of Chinese carp in brackishwater ponds in areas unsuitable for agriculture. Silver carp (Hypophthalmichthys molitrix) and grass carp (Ctenopharyngodon idella) were transferred from fresh water to mixtures of sea water and tap water (20, 25 and 30% sea water) in the laboratory. All the carp survived for 48 h after transfer to the first concentration; there was 0% and 100% mortality of silver carp within 48 h in 25 and 30% sea water respectively, while the grass carp also only died in 30% sea water (20% mortality). After acclimatization for 48 h to 20 or 25% sea water and transfer to 30% sea water, about half the grass carp survived a further 48 h, whereas survival rates for silver carp were 16% (transfer from 20 to 30% sea water) and 10% (transfer from 25 to 30%) after 48 h. No silver carp survived in 25% sea water for 30 days. However, only 25% of the grass carp exposed to this salinity for the same period of time died
Publication Year: 1977
Publication Date: 1977-06-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 14
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