Cytogenetic structure of Chironomus plumosus (L.) (Diptera, Chironomidae) population in regard to the trophic state of the Curonian Lagoon, Baltic Sea

被引：3
|
作者：
Markiyanova, M. F. [1 ]
机构：
[1] Russian Acad Sci, PP Shirshov Oceanol Inst, Atlantic Branch, Kaliningrad 236000, Russia
来源：
INLAND WATER BIOLOGY | 2009年 / 2卷 / 04期
关键词：
Chironomus plumosus; Curonian Lagoon; cytogenetic structure of population; sequence of discs; trophic status; POLYMORPHISM;
D O I：
10.1134/S1995082909040075
中图分类号：
Q17 [水生生物学];
学科分类号：
071004 ;
摘要：
It is shown that the cytogenetic structure of the Chironomus plumosus (L.) population in the Curonian Lagoon has not changed significantly over the last three decades. The existing cytogenetic structure supported not only population survival, but also its proliferation in new environmental conditions caused by an increase of the trophic status of the water body. The predominance of homozygotes pluB2.2 was marked in karyofund. Both the oxygen deficiency periodically occurring in the Curonian Lagoon and the fact that the population dwells at the periphery of the species areal in the Palearctic could be reasons for this phenomenon.
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页码：336 / 339
页数：4
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