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Latest Diversity Trend and Seasonal Abundance of Population of Zooplankton (Holoplankton) Communities in the South Caspian Sea, Iran | ||
| Iranian Journal of Fisheries Sciences | ||
| مقاله 15، دوره 13، شماره 2، تیر 2014، صفحه 437-448 | ||
| شناسه دیجیتال (DOI): 10.22092/ijfs.2018.114368 | ||
| نویسندگان | ||
| M Rowshan Tabari* ؛ S. M. R Fatemi؛ R Pourgholam؛ R Mousavi Nadoushan | ||
| چکیده | ||
| Seasonal variations of zooplankton communities were studied in the southern Caspian Sea for 4 successive seasons and 8 transects with 5 stations from 5 to 100 m depths which sampled during 2009. The zooplankton population constituted of 73.33% copepods, 24.21% rotifers, 2.23% cladocerans and 0.23% protozoans. Copepods were dominant at all stations with a density between 1456±531 ind. m-3 (Transect 8) to 4524±1215 ind. m-3 (transect 2). The predominant species of copepods was Acartia tonsa constituting 99.50% of all copepod populations. They were most abundant during warm months of summer in the upper layers (surface to 20 m depth) while rotifers replaced them during cold season. The maximum density of zooplankton was observed in the west decreasing towards the eastern parts of the sea. | ||
| کلیدواژهها | ||
| zooplankton؛ Caspian Sea؛ Copepods؛ Rotifers؛ Acartia tonsa | ||
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