The contribution of silver carp (Hypophthalmichthys molitrix) to the biological control of Netofa reservoirs

The effects of biological control measures using fish in reservoirs drawing water from Kinneret lake, Israel, were examined. Silver carp were introduced to control phytoplankton and zooplankton in the Netofa reservoirs, resulting in a significant reduction in algae, zooplankton and suspended organic...

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Bibliographic Details
Published in:Hydrobiologia 1990-01, Vol.191 (1), p.47-55
Main Authors: Leventer, H. (Mekoroth Water Co., Nazareth Ilit (Israel). Central Lab., Jordan District), Teltsch, B
Format: Article
Language:English
Subjects:
ALGAE
Animal and plant ecology
Animal, plant and microbial ecology
AUXILIAIRE DE LUTTE BIOLOGIQUE
Biological and medical sciences
BIOLOGICAL CONTROL ORGANISMS
CYANOPHYTA
EMBALSES
FITOPLANCTON
Fresh water ecosystems
Freshwater
Fundamental and applied biological sciences. Psychology
HYPOPHTHALMICHTHYS
Hypophthalmichthys molitrix
ISRAEL
MATERIA ORGANICA
MATIERE ORGANIQUE
ORGANIC MATTER
ORGANISMOS PARA CONTROL BIOLOGICO
PHYTOPLANCTON
PHYTOPLANKTON
RESERVOIR D'EAU
Synecology
WATER RESERVOIRS
ZOOPLANCTON
ZOOPLANKTON
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Summary:The effects of biological control measures using fish in reservoirs drawing water from Kinneret lake, Israel, were examined. Silver carp were introduced to control phytoplankton and zooplankton in the Netofa reservoirs, resulting in a significant reduction in algae, zooplankton and suspended organic matter. Fish yields ranged from 600 to 1500 kg per ha annually. After 6 to 8 years the growth of individual fish was 6-15 kg per fish. The introduction of silver carp resulted in a balanced ecological system with minimal competition between species and significant environmental improvements. There was a practical synergism between silver carp and bottom-feeding fish in the system.
ISSN:0018-8158
1573-5117
DOI:10.1007/BF00026038