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16 results for “Echinogammarus”
Figure 4 in First records of two formerly overlooked Ponto-Caspian amphipods from Turkey: Echinogammarus trichiatus (Martynov, 1932) and Dikerogammarus villosus (Sovinsky, 1894)
Figure 4. Morphological features of the Echinogammarus trichiatus. A1 - antenna I; A2 - antenna II; G1 - gnathopod I; P3 - pereiopod III; P7 - pereiopod VII; U3 - uropod III; UR - urosome (after Cărăușu, 1943, modified).
Figure 2 in First records of two formerly overlooked Ponto-Caspian amphipods from Turkey: Echinogammarus trichiatus (Martynov, 1932) and Dikerogammarus villosus (Sovinsky, 1894)
Figure 2. Morphological features of Dikerogammarus villosus: A1 - antenna I; A2 - antenna II; G1 - gnathopod I; P3 - pereiopod III; P7 - pereiopod VII; U3 - uropod III; UR - urosome (after Cărăușu, 1943, modified).
Figure 5 in First records of two formerly overlooked Ponto-Caspian amphipods from Turkey: Echinogammarus trichiatus (Martynov, 1932) and Dikerogammarus villosus (Sovinsky, 1894)
Figure 5. Neighbor-joining tree based on COI p-distances for haplotypes of Echinogammarus trichiatus and Echinogammarus ischnus. Gammarus fossarum was used as an outgroup. Only bootstrap supports above 50% were reported. Bold indicates haplotypes coming from Lake Durusu, obtained in this study.
Figure 1 in First records of two formerly overlooked Ponto-Caspian amphipods from Turkey: Echinogammarus trichiatus (Martynov, 1932) and Dikerogammarus villosus (Sovinsky, 1894)
Figure 1. Sampling site in Lake Durusu.
Figure 11 in A widespread Ponto-Caspian invader with a mistaken identity: integrative taxonomy elucidates the confusing taxonomy of Trichogammarus trichiatus (= Echinogammarus) (Crustacea: Amphipoda)
Figure 11. Chaetogammarus trichiatus, ♂ (A–D, F–J) and ♀ (E, K), Shahe River, Krasnodar region. A–C, epimeral plates 1–3. D, E, telson. F, pleopod 1. G, retinacula of pleopod 1. H, uropod 1. I, uropod 2; J, K, uropod 3.
Figure 8 in A widespread Ponto-Caspian invader with a mistaken identity: integrative taxonomy elucidates the confusing taxonomy of Trichogammarus trichiatus (= Echinogammarus) (Crustacea: Amphipoda)
Figure 8. Chaetogammarus trichiatus, ♂ (A–C, F, G, I) and ♀ (D, E, H), Shahe River, Krasnodar region. A, antenna 1. B, accessory flagellum of antenna 1. C, D, antenna 2. E, F, gnathopod 1. G, distoventral corner of chela of gnathopod 1. H, I, gnathopod 2.
Figure 5. Morphological differentiation among the focal taxa. A in A widespread Ponto-Caspian invader with a mistaken identity: integrative taxonomy elucidates the confusing taxonomy of Trichogammarus trichiatus (= Echinogammarus) (Crustacea: Amphipoda)
Figure 5. Morphological differentiation among the focal taxa. A, principal components analysis showing variability in morphospace across the first three axes (PC 1–PC 3) for males (top) and females (below). B, dendrogram based on squared Mahalanobis distances. C, boxplots depicting variation in length of selected morphological traits (corrected for body size).
Figure 3 in A widespread Ponto-Caspian invader with a mistaken identity: integrative taxonomy elucidates the confusing taxonomy of Trichogammarus trichiatus (= Echinogammarus) (Crustacea: Amphipoda)
Figure 3. Mitochondrial (COI and 16S) time-calibrated tree and species delimitation results. Numbers at nodes are posterior probabilities (not shown if <0.7). Turquoise bars indicate 95% confidence intervals for node ages (shown only for supported nodes). Bars on the right depict the results of the species delimitation analyses (abbreviations: Morpho, morphology; BIN, Barcode Index number; GMYC, General Mixed Yule Coalescent; PTP, Poisson Tree Processes; ASAP, Assemble Species by Automatic Partitioning; PDT, Patristic Distance Threshold). Red stars indicate the clades of Chaetogammarus ischnus and Chaetogammarus trichiatus that were used in the multilocus Bayes factors species delimitation approach.
Figure 7. Scanning electron micrographs. A, antenna 1. B, antenna 2. C in A widespread Ponto-Caspian invader with a mistaken identity: integrative taxonomy elucidates the confusing taxonomy of Trichogammarus trichiatus (= Echinogammarus) (Crustacea: Amphipoda)
Figure 7. Scanning electron micrographs. A, antenna 1. B, antenna 2. C, basis of pereopod 7. D, pereopod 3. Scale bars: 0.2 mm.
Figure 6. Scanning electron micrographs. A in A widespread Ponto-Caspian invader with a mistaken identity: integrative taxonomy elucidates the confusing taxonomy of Trichogammarus trichiatus (= Echinogammarus) (Crustacea: Amphipoda)
Figure 6. Scanning electron micrographs. A, dorsal side of urosome. B, lateral head lobes. C, gnathopod 2 propodus. D, uropod 3. Scale bars: 0.2 mm.
Figure 1 in A widespread Ponto-Caspian invader with a mistaken identity: integrative taxonomy elucidates the confusing taxonomy of Trichogammarus trichiatus (= Echinogammarus) (Crustacea: Amphipoda)
Figure 1. Multilocus maximum likelihood phylogeny (COI, 16S, 28S, EPRS and H3) of the Ponto-Caspian gammaroid radiation. Chaetogammarus and Spirogammarus gen. nov. species are shown with dashed branches. Focal taxa are shown with coloured branches. Strongly supported nodes in all analyses are shown with green dots, moderately supported nodes are annotated with support values from each analysis, and unsupported nodes are not annotated (see key at the top left).
Figure 10 in A widespread Ponto-Caspian invader with a mistaken identity: integrative taxonomy elucidates the confusing taxonomy of Trichogammarus trichiatus (= Echinogammarus) (Crustacea: Amphipoda)
Figure 10. Chaetogammarus trichiatus, ♂, Shahe River, Krasnodar region. A, pereopod 3. B, pereopod 4. C, dactylus of pereopod 4. D, pereopod 5. E, dactylus of pereopod 5. F, pereopod 6. G, pereopod 7. H, dactylus of pereopod 7.
Figure 4 in A widespread Ponto-Caspian invader with a mistaken identity: integrative taxonomy elucidates the confusing taxonomy of Trichogammarus trichiatus (= Echinogammarus) (Crustacea: Amphipoda)
Figure 4. Distribution of focal taxa. Small dots represent distribution records from the literature (after CopilaȘ-Ciocianu et al., 2023); large dots represent sequenced localities (black outline, literature data; white outline, present study). Arrows represent the type localities of Chaetogammarus trichiatus (orange) and Spirogammarus major (purple). The question mark represents a doubtful distribution record of Chaetogammarus ischnus. Green dashed lines indicate the native range.
Figure 9 in A widespread Ponto-Caspian invader with a mistaken identity: integrative taxonomy elucidates the confusing taxonomy of Trichogammarus trichiatus (= Echinogammarus) (Crustacea: Amphipoda)
Figure 9. Chaetogammarus trichiatus, ♂, Shahe River, Krasnodar region. A, labrum (upper lip). B, labium (lower lip). C, E, mandible. D, F, incisor process and pars incisiva of mandible. G, left maxilla 1. H, right maxilla 1 distal segment of palp. I, maxilla 2. J, maxilliped.
Figure 3 in First records of two formerly overlooked Ponto-Caspian amphipods from Turkey: Echinogammarus trichiatus (Martynov, 1932) and Dikerogammarus villosus (Sovinsky, 1894)
Figure 3. SEM picture of atypical U3 in Echinogammarus trichiatus from Lake Durusu.
Figure 2 in A widespread Ponto-Caspian invader with a mistaken identity: integrative taxonomy elucidates the confusing taxonomy of Trichogammarus trichiatus (= Echinogammarus) (Crustacea: Amphipoda)
Figure 2. Relationships among focal taxa at individual markers. A, haplotype networks for individual mitochondrial markers (COI and 16S) and nuclear markers (28S, EPRS, GAPDH and H3). B, neighbour-net networks for the concatenated mitochondrial and nuclear markers.
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