Details

Autor(en) / Beteiligte

• GOPHEN, M
• Boxshall, GA
• Schminke, HK (eds)

Titel

Changes of Copepoda populations in Lake Kinneret during 1969-1985

Ist Teil von

• Hydrobiologia, 1988-10, Vol.167-168, p.375-379

Ort / Verlag

Dordrecht: Springer

Erscheinungsjahr

1988

Quelle

SpringerLINK Contemporary (Konsortium Baden-Württemberg)

Beschreibungen/Notizen

• Long period analysis of Copepoda populations in Lake Kinneret indicated significant reductions in total biomass and production as well as densities of nauplii and adult stages, particularly females. The reduction of adult Mesocyclops sp. was statistically significant, but that of Thermocyclops sp. was not. Annual averages of eggs/female values and densities of copepodite stages did not show significant changes. Concentrations of adult Thermocyclops sp. became higher relative to the larger genus Mesocyclops sp. It is suggested that densities of large copepods were affected by intensification of predation pressure by particulate feeding fishes. The densities of nauplii were probably reduced by increased predation pressure of filter feeding fish. (DBO)