Gammarus Izmirensis Sp. Nov., A New Species of Freshwater Amphipod from Turkey (Amphipoda, Gammaridae)

Abstract

A new species of freshwater amphipod, Gammarus izmirensis sp. nov., belonging to the Gammarus pulex-group, is described. Specimens have been collected from a stream in the Kemalpaşa district,İzmir province, western Anatolia. A detailed morphological description and illustrations of the new species are given. Differences between the new species and related species are discussed. RÉSUMÉUne nouvelle espèce d'amphipode d'eaux douces, Gammarus izmirensis sp. nov., appartenant au groupe Gammarus pulex, est décrite. Les spécimens ont été collectés dans un cours d'eau du district de Kemalpaşa, province d'İzmir, Anatolie occidentale. Une description morphologique détaillée et des illustrations de la nouvelle espèce sont données. Les différences entre la nouvelle espèce et les espèces apparentées sont discutées.

Intraspecific or interspecific variation: delimitation of species boundaries within the genus Gammarus (Crustacea, Amphipoda, Gammaridae), with description of four new species

“…The taxonomy of Gammarus remains unsatisfactory despite recent revisions of regional faunas (Karaman & Pinkster, 1977a, b, 1987; Hou, 2002) and many current taxonomic publications (Stock et al. , 1998; Özbek, 2007). The morphology‐based taxonomy of Gammarus requires investigation of numerous characters, and detailed morphological studies have shown that many variable traits are of limited utility because of phenotypic plasticity and ecological diversity (Pinkster, 1983).…”

First record of Gammarus roeselii Gervais, 1835 (Amphipoda: Gammaridae) from Kosovo with ecological notes

“…The genus Gammarus Fabricius, 1775, with more than 200 species, inhabits marine and freshwater environments; while most are epigean, some of them have been reported from caves and wells (Karaman & Pinkster, 1977a;Özbek et al, 2013). Species of this genus are distributed in the Holarctic and Palearctic regions.…”

A PRELIMINARY INVESTIGATION ON THE LIPID CONTENT AND FATTY ACID COMPOSITION OF Gammarus komareki (SCHAFERNA 1922), (CRUSTACEA: AMPHIPODA)

“…Özbek and Ustaoğlu, 2006;Karaman and Pinkster, 1977;Karaman, 1973;Ustaoğlu et. al., 2004;Duran, 2007;Özbek, 2007;Özbek and Topkara, 2007 etc. ), very little study has been issued the compositions of Gammarus spp.…”