Carp reproduction in highly eutrophic pond conditions

Five-year old carp spawners were held for 4 years in 8 carp ponds, of which 4 were made highly eutrophic by the addition of urea and superphosphate, and fish condition and reproductive ability were measured. Fish survival in eutrophic ponds (63 per cent) was significantly lower than in control ponds...

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Bibliographic Details
Published in:Bulletin of environmental contamination and toxicology 1996-11, Vol.57 (5), p.842-848
Main Authors: BIENIARZ, K, EPLER, P, SOKOŁOWSKA-MIKOŁAJCZYK, M, CHYB, J, POPEK, W
Format: Article
Language:English
Subjects:
Agnatha. Pisces
Animal, plant and microbial ecology
Animals
Applied ecology
Biological and medical sciences
Biomass
Carps - physiology
Cyprinidae
Ecotoxicology, biological effects of pollution
Effects of pollution and side effects of pesticides on vertebrates
Embryonic and Fetal Development - drug effects
Female
Fertilization in Vitro - drug effects
Fresh Water
Freshwater
Fundamental and applied biological sciences. Psychology
Male
Nitrates - toxicity
Nitrites - toxicity
Nitrogen - analysis
Phosphorus - analysis
Plankton - drug effects
Plankton - metabolism
Reproduction - drug effects
Sperm Count - drug effects
Water Pollutants, Chemical - toxicity
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Summary:Five-year old carp spawners were held for 4 years in 8 carp ponds, of which 4 were made highly eutrophic by the addition of urea and superphosphate, and fish condition and reproductive ability were measured. Fish survival in eutrophic ponds (63 per cent) was significantly lower than in control ponds (87 per cent). There was no significant difference in gonadosomatic index (GSI) for males between the types of pond but the GSI for females in the eutrophic ponds was significantly lower than in control ponds. Fish from the eutrophic ponds had significantly lower sperm volume in males and lower fecundity than those from the control ponds. In vitro hatching was significantly higher in control solutions than in nitrate solutions (greater than 15 mg per litre) or nitrite solutions (greater than 1 mg per litre).
ISSN:0007-4861
1432-0800
DOI:10.1007/s001289900266