In 2017, the mysid Paramysis lacustris (Czerniavsky, 1882) was found for the first time in the Hungarian Danube section, representing the first psammo-pelophilous Ponto-Caspian peracarid colonizing the Middle Danube. In 2018, a brief survey focusing on this species revealed its presence in a more than 500-km-long river section spanning from Austria (Vienna, river km 1926) to Croatia (Batina, river km 1425). The largest populations of P. lacustris might be formed in reservoirs and slow-flowing stretches, where the appearance of the species might imply a considerable impact in connection with its zooplanktivorous feeding and important role in the diet of fish. Similar to all the other Ponto-Caspian peracarids that have crossed the Middle Danube, P. lacustris can reasonably be expected to continue its spread toward Western Europe in the future.
Auteurs du document :
Péter Borza, Krisztián Kovács, Alexandra György, Júlia Katalin Török, Ádám Egri
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Mots clés :
range expansion, Crustacea, Mysida, psammo-pelophilous, jump dispersal
Thème (issu du Text Mining) :
FAUNE, MILIEU NATUREL, SCIENCES EXACTES SCIENCES HUMAINES