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306 results for “freshwater snails”
FIGURE 6 in Diversification in ancient Lake Biwa: integrative taxonomy reveals overlooked species diversity of the Japanese freshwater snail genus Semisulcospira (Mollusca: Semisulcospiridae)
FIGURE 6 Map of Lake Biwa indicating geographical variation in the frequency of sculpture types in the adult females of five Semisulcospira species. Colours of locality names correspond to the colour coding in fig. 1
FIGURE 4 in Diversification in ancient Lake Biwa: integrative taxonomy reveals overlooked species diversity of the Japanese freshwater snail genus Semisulcospira (Mollusca: Semisulcospiridae)
FIGURE 4 Results of ADMIXTURE analysis based on 738 SNP s conducted for five Semisulcospira species. Bar colours of the species in K = 5 correspond to the colour coding in fig. 3
FIGURE 5 in Diversification in ancient Lake Biwa: integrative taxonomy reveals overlooked species diversity of the Japanese freshwater snail genus Semisulcospira (Mollusca: Semisulcospiridae)
FIGURE 5 Phylogenetic relationships of five Semisulcospira species estimated by the Neighbor-Net reconstructed based on uncorrected p-distances of 738 SNP s
FIGURE 3 in Diversification in ancient Lake Biwa: integrative taxonomy reveals overlooked species diversity of the Japanese freshwater snail genus Semisulcospira (Mollusca: Semisulcospiridae)
FIGURE 3 Results of principal components analysis based on 738 SNP s conducted for five Semisulcospira species. A, Principal component (PC) 1 vs PC 2. B, PC2 vs PC3. C, PC 3 vs PC4. D, PC4 vs PC5
FIGURE 2 in Diversification in ancient Lake Biwa: integrative taxonomy reveals overlooked species diversity of the Japanese freshwater snail genus Semisulcospira (Mollusca: Semisulcospiridae)
FIGURE 2 Schematic drawings representing shell measurements of Semisulcospira species in this study. A, Spire angle (SA) and aperture swell length (ASL) of adult shell. B–D, Criteria for types of sculptures
FIGURE 1 in Diversification in ancient Lake Biwa: integrative taxonomy reveals overlooked species diversity of the Japanese freshwater snail genus Semisulcospira (Mollusca: Semisulcospiridae)
FIGURE 1 Map of Lake Biwa (A) and Oura Bay (B) showing 15 sampling localities: blue, Semisulcospira niponica; green, S. fuscata; purple, S. watanabei sp. nov.; red, S. nakanoi sp. nov.; orange, S. salebrosa sp. nov; black, putative hybrid between S. fuscata and S. watanabei sp. nov.
FIGURE 10 in Diversification in ancient Lake Biwa: integrative taxonomy reveals overlooked species diversity of the Japanese freshwater snail genus Semisulcospira (Mollusca: Semisulcospiridae)
FIGURE 10 Shells of Semisulcospira nakanoi sp. nov. A–G, Holotype, KUZ Z4122. H–J, Paratype, KUZ Z4125. K–L, Paratype, KUZ Z4126. M–Q, Specimens from Onoe Port, KUZ Z4129, Z4130. A–C, H, K, M, P, Adult shell. A–C, H, M, Female. K, P, Male. D, I, L, N, Q, Operculum. E–G, J, O, Embryonic shell. Scale bars: 10 mm (A–D, H–I, K–L, M–N, P–Q), 1 mm (E–G, J, O). All specimens were treated with 3% sodium hypochlorite
FIGURE 12 in Diversification in ancient Lake Biwa: integrative taxonomy reveals overlooked species diversity of the Japanese freshwater snail genus Semisulcospira (Mollusca: Semisulcospiridae)
FIGURE 12 Radulae of Semisulcospira species. A–G, Semisulcospira niponica: A, Oura Port, KUZ Z4091; B, Nagahama Port, KUZ Z4093; C, Iso, KUZ Z4095; D, Kitakomatsu Port, KUZ Z4097; E, Katata Port, KUZ Z4099; F, Otsu Port, KUZ Z4101; G, Nango, KUZ Z4103. H–J, Semisulcospira fuscata: H, Lake Yogo, KUZ Z4103; I, Oura, KUZ Z4105; J, Nihonmatsu, KUZ Z4107. K–L, Semisulcospira watanabei sp. nov.: K, Kitakomatsu Port, KUZ Z4115; L, Horikiri Port, KUZ Z4120. M–N, Semisulcospira nakanoi sp. nov.: M, Onoe Port, KUZ Z4129; N, Chikubu-shima Island, KUZ Z4127. O–P, Semisulcospira salebrosa sp. nov.: O, Take-shima Island, KUZ Z4138; P, Shiraishi-jima Island, KUZ Z4136. Scale bars: 100 Μm
Fig. 3 in All-inclusive descriptions of new freshwater snail taxa of the hyperdiverse family Tateidae (Gastropoda, Caenogastropoda) from the South Island of New Zealand
Fig. 3. Shell morphology. Principal component analysis based on five shell measurements of Table 1.
Data from: Evaluating shell variation across different populations of a freshwater snail
The freshwater snail Potamopyrgus antipodarum has become a model system for studying invasion ecology, host–parasite coevolution, the maintenance of sexual reproduction and ecotoxicology. One understudied aspect of this snail is the variation in morphology within and among populations, which could provide insights into ecological differences across its native range. In this study of 17 New Zealand lake populations of P. antipodarum we used linear measurements and geometric morphometrics to compare several aspects of shell size and shape. We found that, except for those from Lake Te Anau, most lake populations of P. antipodarum differ slightly in shape, but differ significantly in size and in the presence of spines, where larger and spinier snails are found in deeper regions. These striking distinctions in size and shell armature, but not in shape, suggest that the various components of form are under different selective regimes. Snails from Lake Te Anau are different in both shape and size, implying that this population is diverging from the rest of the species in multiple ways, making it an interesting study population for further research.
Fig. 2 in Identification of freshwater snail species and survey of their trematode infections in Ordos, China
Fig. 2. Trematodes larvae in freshwater snails A–G: Cercaria; H, I: sporocyst; J, K: metacercariae.
Fig. 20 in On the origin and diversification of the stygobiotic freshwater snail genus Hauffenia (Caenogastropoda: Hydrobiidae) with special focus on the northern species and the description of two new species
Fig. 20. Scenario of evolutionary diversification of Hauffenia Pollonera, 1898.
Fig. 19 in On the origin and diversification of the stygobiotic freshwater snail genus Hauffenia (Caenogastropoda: Hydrobiidae) with special focus on the northern species and the description of two new species
Fig. 19. Operculum of H. steffeki sp. nov., from type locality; internal side. Scale bar = 100 µm.
Fig. 3 in On the origin and diversification of the stygobiotic freshwater snail genus Hauffenia (Caenogastropoda: Hydrobiidae) with special focus on the northern species and the description of two new species
Fig. 3. Localities in Austria (C) and Bosnia and Herzegovina (D). Abbreviation: LT = type locality.
Fig. 2 in On the origin and diversification of the stygobiotic freshwater snail genus Hauffenia (Caenogastropoda: Hydrobiidae) with special focus on the northern species and the description of two new species
Fig. 2. Localities in Slovakia (A) and Hungary (B). Abbreviation: LT = type locality.
Fig. 2 in Distribution Of The Freshwater Snail Species Fagotia (Gastropoda, Melanopsidae) In Ukraine According To Climatic Factors. I. Fagotia Esperi
Fig. 2. Response curve of the mean temperature of the driest quater (bio 9).
Data from: Condition-dependent immune function in a freshwater snail revealed by stable isotopes
<p>Data are saved as a tab-delimited text file (data.txt). Each row represents one snail individual.</p> <p> </p> <p>The file has the following columns:</p> <p>infection - trematode infection (0 = no, 1 = yes)</p> <p>PO_activity - PO-like activity of haemolymph</p> <p>antibacterial_activity - antibacterial activity of haemolymph</p> <p>shell_length - shell length (mm)</p> <p>faeces - amount of produced faeces (mg)</p> <p>d15N_faeces - δ<sup>15</sup>N value of faeces</p> <p>d13C_faeces - δ<sup>13</sup>C value of faeces</p> <p>C:N_faeces - C:N ration of faeces</p> <p>d15N_tissue - δ<sup>15</sup>N value of tissue</p> <p>d13C_tissue - δ<sup>13</sup>C value of tissue</p> <p>C:N_tissue - C:N ration of tissue</p>
Fig. 4 in SNAIL - an interactive computer program for the determination of Central European freshwater gastropods
Fig. 4: Key offered by thee computer proogram SNAIL for determiningg the family oof the Lymnaeidae.
Fig. 8 in Two Asian freshwater snails newly introduced into South Africa and an analysis of alien species reported to date
Fig. 8. Shell of Biomphalaria glabrata collected in Durban in the 1980s (photos: C. Appleton).
Fig. 5 in Two Asian freshwater snails newly introduced into South Africa and an analysis of alien species reported to date
Fig. 5. Shell of G. chinensis from Amatikulu (photo: N. Miranda). Scale bar = 1 mm.
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.