%0 Journal Article
%T Non-indigenous macroinvertebrate species in Lithuanian fresh waters, Part 1: Distributions, dispersal and future Les esp¨¨ces de macroinvert¨¦br¨¦s non-indig¨¨nes dans les eaux douces lituaniennes, Partie 1 : distribution, dispersion et devenir
%A Arba£¿iauskas K
%A Vi£¿inskien£¿ G.
%A Smilgevi£¿ien£¿ S.
%A Rakauskas V.
%J Knowledge and Management of Aquatic Ecosystems
%D 2012
%I EDP Sciences
%R 10.1051/kmae/2011075
%X Biological invasions are of increasing global concern. They impact on biodiversity and may result in high economic loss. This demands improvement in knowledge of the dynamics of species dispersal with the goal of preventing future invasions, and predicting and reducing undesirable impacts. This study reports on non-indigenous macroinvertebrate species (NIMS) which have invaded Lithuanian fresh waters. Fifteen NIMS have been recorded during a 12-year study. They include one cnidarian, two molluscan and twelve crustacean species. The deliberate introduction of peracaridans and crayfish for fishery and aquaculture enhancement has substantially contributed to the current NIMS composition. Invaders of Ponto-Caspian origin are dominant, and the collector-gatherers are the largest group with respect to feeding mode. Current NIMS distributions, the history of their primary invasion and patterns of local dispersal are analysed. The main invasion vectors have been inland shipping and deliberate introductions, while secondary spread proceeded both naturally and by various human mediated vectors. The current distribution of most NIMS may remain constant in the future, whilst further expansion of a few NIMS, which possess good dispersal abilities and are well-adapted to freshwater environments, seems very probable. Using multivariate analysis of data from water bodies with established peracaridan invaders, allowed predictions on which unsurveyed water bodies could contain such invaders. Invasions of new NIMS and diversification of donor areas, pathways and vectors are considered. Les invasions biologiques constituent une pr¨¦occupation mondiale croissante. Elles ont une incidence sur la biodiversit¨¦ et peuvent entra ner des pertes ¨¦conomiques ¨¦lev¨¦es. Cela exige l¡¯am¨¦lioration des connaissances sur la dynamique de la dispersion des esp¨¨ces dans le but de pr¨¦venir les invasions futures, et de pr¨¦dire et r¨¦duire les effets ind¨¦sirables. Cette ¨¦tude liste les esp¨¨ces de macroinvert¨¦br¨¦s non-indig¨¨nes (NIMS) qui ont envahi les eaux douces lituaniennes. Quinze NIMS ont ¨¦t¨¦ enregistr¨¦es au cours d¡¯une ¨¦tude de 12 ans. Elles comprennent un cnidaire, deux mollusques et douze esp¨¨ces de crustac¨¦s. L¡¯introduction d¨¦lib¨¦r¨¦e de p¨¦racarides et d¡¯¨¦crevisses pour le d¨¦veloppement de la p¨ºche et de l¡¯aquaculture a consid¨¦rablement contribu¨¦ ¨¤ la composition actuelle des NIMS. Les envahisseurs d¡¯origine pontocaspienne sont dominants, et les cueilleurs-collecteurs constituent le groupe le plus repr¨¦sent¨¦, eu ¨¦gard au mode d¡¯alimentation. Les distributions actuelles des NIMS, l¡¯histoir
%K non-indigenous
%K benthos
%K invasion
%K inland waters
%K feeding habit
%K non-autochtones
%K benthos
%K invasion
%K eaux int¨¦rieures
%K habitudes alimentaires
%U dx.doi.org/10.1051/kmae/2011075