Abstracts |
| |
Authors: | Michiels Nico K Peters Anne Streng Andrea |
| |
Institution: | (1) Yigal Allon Kinneret Limmnological Lab., P.O.B. 345, Tiberias, Israel;(2) Galilee Technological Center, Kiryat Shmona, 10200, Israel |
| |
Abstract: | Lake Agmon was created in the Hula Valley in Israel, in the northern part of the dried-up Hula Lake site, in summer, 1994.
Samples of fish at ten stations were taken by electroshocker once a month, from January to December, 1996. The fish species
whose food composition in the gut was examined in this study were: Tilapia zillii, Gambusia affinis, Clarias gariepinus, Cyprinus
carpio, Pseudophoxinus kervillei, Acanthobrama lissneri, Hemigrammocapoeta nana and Oreochromis aureus. Food components were
determined qualitatively and quantitatively. Assessment of the organism biomass in the gut contents was based on available
data of phytoplankton and zooplankton. The food of G. affinis changed during the year, consisting high level of algae in winter
and spring, and insects and crustaceans in summer. In T. zillii, a high percentage of algae were found in winter, and a high
percentage of plants in summer. The food of H. nana consisted mainly of phytoplankton, but included high plants during most
months; P. kervillei ingested mainly insects and crustaceans, with a high percentage of Daphnia spp.; and the diet of C. gariepinus
comprised fish and invertebrates species, which varied with the seasons. C. carpio ate mainly invertebrates; O. aureus are
vegetarian, and A. lissneri fed on both animals and plants.
This revised version was published online in July 2006 with corrections to the Cover Date. |
| |
Keywords: | Fish community Lake Agmon freshwater feeding habits |
本文献已被 SpringerLink 等数据库收录! |
|