State of Mnemiopsis leidyi (Ctenophora: Lobata) and mesozooplankton in Iranian waters of the Caspian Sea during 2008 in comparison with previous surveys

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Abstract

 Mnemiopsis leidyi which was accidentally
introduced into the Caspian Sea in 1999 and
since then has colonized extensively. The horizontal distribution of M. leidyi and dominant mesozooplankton
species was investigated in the south western Caspian Sea during February, May,
July and November 2008. The average number and biomass of M. leidyi were in the same range (ca 200 individuals.m-3
(2000 ind.m-2) and 16 g wet weight.m-3
(180 g.m-2) in comparison with previous surveys. As in previous
years the population consisted mainly of individuals

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Iranian Journal of Fisheries Sciences
Volume 11, Issue 4
October 2012
Pages 732-754

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