Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
16
datasets available to search
ShareScore release 0.9.0
Dataset results
16 results for “Poeciliid fishes”
FIGURE 3 in Invasive poeciliids dominate fish community in a highly altered river: insights from a diversity study of riverbank fishes in Mexico
FIGURE 3 | Canonical Correspondence Analysis (CCA) results showing the relative influence of environmental variable on the community structure of fish species within each site and seasons. Native species are represented by black triangles, while invasive species are denoted by black circles
FIGURE 2 in Invasive poeciliids dominate fish community in a highly altered river: insights from a diversity study of riverbank fishes in Mexico
FIGURE 2 | Rank-abundance curves for each site and each sampled season. Pb: Pseudoxiphophorus bimaculatus; Pr: Poecilia reticulata; Pg: P. gracilis; Pm: P. mexicana; Ga: Goodea atripinnis; Nc: Notropis calientis, Cc: Cyprinus carpio. Native species are highlighted in bold. Due to the high number of individuals in drainage confluence site Log10 was used for comparative purposes.
FIGURE 1 in Invasive poeciliids dominate fish community in a highly altered river: insights from a diversity study of riverbank fishes in Mexico
FIGURE 1 | Map of the sampling sites along the Tula River: 1) Dam spillway, 2) Spring-fed, 3) Drainage confluence.
Data from: The rediscovery of a long described species reveals additional complexity in speciation patterns of poeciliid fishes in sulfide springs
The process of ecological speciation drives the evolution of locally adapted and reproductively isolated populations in response to divergent natural selection. In Southern Mexico, several lineages of the freshwater fish species of the genus Poecilia have independently colonized toxic, hydrogen sulfide-rich springs. Even though ecological speciation processes are increasingly well understood in this system, aligning the taxonomy of these fish with evolutionary processes has lagged behind. While some sulfide spring populations are classified as ecotypes of Poecilia mexicana, others, like P. sulphuraria, have been described as highly endemic species. Our study particularly focused on elucidating the taxonomy of the long described sulfide spring endemic, Poecilia thermalis Steindachner 1863, and investigates if similar evolutionary patterns of phenotypic trait divergence and reproductive isolation are present as observed in other sulfidic species of Poecilia. We applied a geometric morphometric approach to assess body shape similarity to other sulfidic and non-sulfidic fish of the genus Poecilia. We also conducted phylogenetic and population genetic analyses to establish the phylogenetic relationships of P. thermalis and used a population genetic approach to determine levels of gene flow among Poecilia from sulfidic and non-sulfidic sites. Our results indicate that P. thermalis' body shape has evolved in convergence with other sulfide spring populations in the genus. Phylogenetic analyses placed P. thermalis as most closely related to one population of P. sulphuraria, and population genetic analyses demonstrated that P. thermalis is genetically isolated from both P. mexicana ecotypes and P. sulphuraria. Based on these findings, we make taxonomic recommendations for P. thermalis. Overall, our study verifies the role of hydrogen sulfide as a main factor shaping convergent, phenotypic evolution and the emergence of reproductive isolation between Poecilia populations residing in adjacent sulfidic and non-sulfidic environments.
FIGURES 32–38 in Gyrodactylus jarocho sp. nov. and Gyrodactylus xalapensis sp. nov. (Platyhelminthes: Monogenea) from Mexican poeciliids (Teleostei: Cyprinodontiformes), with comments on the known gyrodactylid fauna infecting poeciliid fish
FIGURES 32–38. Gyrodactylus jarocho sp. nov. from Xiphophorus hellerii Heckel. 32. Light micrograph of the haptoral central hook complex showing the hamuli, the dorsal and the ventral bar (ventral view); 33. Light micrograph of the marginal hook; 34–35. Light micrographs of the marginal hook sickles; 36. Drawing of the central hook complex; 37. Drawing of the marginal hook sickle; 38. Drawing of the male copulatory organ (MCO). Scale bars: Figures 32, 33 and 36 = 5 µm; Figures 34, 35, 37 and 38 = 3 µm.
FIGURES 39–46 in Gyrodactylus jarocho sp. nov. and Gyrodactylus xalapensis sp. nov. (Platyhelminthes: Monogenea) from Mexican poeciliids (Teleostei: Cyprinodontiformes), with comments on the known gyrodactylid fauna infecting poeciliid fish
FIGURES 39–46. Gyrodactylus xalapensis sp. nov. from Heterandria bimaculata Heckel. 39. Light micrograph of the haptoral central hook complex showing the hamuli, the dorsal and the ventral bar (ventral view); 40–41. Light micrographs of the marginal hooks; 42. Light micrograph of the marginal hook sickle; 43. Light micrographs of the male copulatory organ (MCO); 44. Drawing of the central hook complex; 45. Drawing of the marginal hook sickle; 46. Drawing of the MCO. Scale bars: Figures 39–41 and 44 = 5 µm; Figures 42, 43, 45 and 46 = 3 µm.
FIGURE 31 in Gyrodactylus jarocho sp. nov. and Gyrodactylus xalapensis sp. nov. (Platyhelminthes: Monogenea) from Mexican poeciliids (Teleostei: Cyprinodontiformes), with comments on the known gyrodactylid fauna infecting poeciliid fish
FIGURE 31. Principal components analysis plot (Factor1 vs Factor2) of Gyrodactylus bullatarudis Turnbull, 1956, Gyrodactylus cytophagus Paperna, 1968, Gyrodactylus poeciliae Harris & Cable, 2000, Gyrodactylys rasini Lucký, 1973 and Gyrodactylus xalapensis sp. nov. (13 ln-transformed variables; n = 29 specimens). The specimens of G. xalapensis sp. nov. (ellipse 1) are clearly separated from G. rasini (ellipse 2). Separation of the specimens is effected by the several hamulus variables acting along Factor1 (total length (HTL), shaft length (HSL), point length (HPL), aperture distance (HA), distal shaft width (HDSW) and the proximal shaft width (HPSW)) and by point curve angle of the hamulus (CosHPCA), the total length (MHTL) and shaft length (MHSL) of the marginal hook acting through Factor2. Plot codes: a. G. bullatarudis from Poecilia mexicana Steindachner; b. G. bullatarudis from Xiphophorus hellerii Heckel; d. G. xalapensis sp. nov. from Heterandria bimaculata Heckel; e. G. bullatarudis paratype from Poecilia sphenops Valenciennes; j. G. poeciliae from Poecilia caucana (Steindachner); l. G. cytophagus from Aplocheilichthys pumilus (Boulenger); m. G. rasini from X. hellerii.
FIGURE 30 in Gyrodactylus jarocho sp. nov. and Gyrodactylus xalapensis sp. nov. (Platyhelminthes: Monogenea) from Mexican poeciliids (Teleostei: Cyprinodontiformes), with comments on the known gyrodactylid fauna infecting poeciliid fish
FIGURE 30. Principal Components Analysis plot (Factor1 vs Factor2) of the 13 point-to-point measurements made on 45 gyrodactylids collected from a range of poeciliid hosts. Separation of the specimens is principally influenced by the hamulus total length (HTL), shaft length (HSL), point length (HPL) and aperture distance (HA) acting along Factor1 in a negative direction, and the inner (CosIHAA) and outer (CosHAA) hamulus angles acting along Factor1 in a positive direction. The total length (MHTL) and the shaft length (MHSL) of the marginal hook are key variables in the separation of specimens along Factor2. The raw ellipses highlight the specimens of Gyrodactylus xalapensis sp. nov. from Heterandria bimaculata Heckel (1), and Gyrodactylus jarocho sp. nov. from Xiphophorus hellerii Heckel (2). Plot codes: a. Gyrodactylus bullatarudis Turnbull, 1956 from Poecilia mexicana Steindachner; b. G. bullatarudis from X. hellerii; c. G. j a ro c h o sp. nov. from X. hellerii; d. G. xalapensis from H. bimaculata; e. G. bullatarudis paratype from Poecilia sphenops Valenciennes; f. Gyrodactylus costaricensis Kritsky & Fritts, 1970 from P. sphenops; g. Gyrodactylus gambusiae Rogers & Wellborn, 1965 from Gambusia affinis Baird & Girard; h. Gyrodactylus pictae Cable, van Oosterhout, Barson & Harris, 2005 from Micropoecilia (=Poecilia) picta Regan; i. Gyrodactylus turnbulli Harris, 1986 from Poecilia reticulata Peters; j. Gyrodactylus poeciliae Harris & Cable, 2000 from Poecilia caucana Steindachner; k. Gyrodactylus milleri Harris & Cable, 2000 from P. caucana; l. Gyrodactylus cytophagus Paperna, 1968 from Aplocheilichthys pumilus Boulenger; m. Gyrodactylus rasini Lucký, 1973 from X. hellerii.
FIGURES 1–14. A in Gyrodactylus jarocho sp. nov. and Gyrodactylus xalapensis sp. nov. (Platyhelminthes: Monogenea) from Mexican poeciliids (Teleostei: Cyprinodontiformes), with comments on the known gyrodactylid fauna infecting poeciliid fish
FIGURES 1–14. A size invariant comparison of the marginal hook sickles of two new species of Gyrodactylus with the nine species previously recorded infecting poeciliids. 1. Gyrodactylus jarocho sp. nov.; 2. Gyrodactylus xalapensis sp. nov.; 3. Gyrodactylus bullatarudis Turnbull, 1956 (re-examination); 4. Overlay of G. bullatarudis with G. j a ro c h o sp. nov. (broken line); 5. Overlay of G. bullatarudis with G. xalapensis sp. nov. (broken line); 6. Gyrodactylus costaricensis Kritsky & Fritts, 1970 (re–examination); 7. Overlay of G. costaricensis with G. j a ro c h o sp. nov. (broken line); 8. Overlay of G. costaricensis with G. xalapensis sp. nov. (broken line); 9. Gyrodactylus cytophagus Paperna, 1968 (reexamination); 10. Overlay of G. cytophagus with G. ja ro c ho sp. nov. (broken line); 11. Overlay of G. cytophagus with G. xalapensis sp. nov. (broken line); 12. Gyrodactylus gambusiae Rogers & Wellborn, 1965 (re-examination); 13. Overlay of G. gambusiae with G. j a ro c h o sp. nov. (broken line); 14. Overlay of G. gambusiae with G. xalapensis sp. nov. (broken line). Scale bars = 3 µm.
FIGURES 47–52 in Gyrodactylus jarocho sp. nov. and Gyrodactylus xalapensis sp. nov. (Platyhelminthes: Monogenea) from Mexican poeciliids (Teleostei: Cyprinodontiformes), with comments on the known gyrodactylid fauna infecting poeciliid fish
FIGURES 47–52. Light photographs and drawings of Gyrodactylus milleri Harris & Cable, 2000 (holotype), showing the three different sizes and morphologies of the marginal hook sickles. 47, 50. Small marginal hook sickle; 48, 51. Medium sized marginal hook sickle; 49, 52. Large marginal hook sickle. Scale bar = 3 µm.
FIGURES 15–29. A in Gyrodactylus jarocho sp. nov. and Gyrodactylus xalapensis sp. nov. (Platyhelminthes: Monogenea) from Mexican poeciliids (Teleostei: Cyprinodontiformes), with comments on the known gyrodactylid fauna infecting poeciliid fish
FIGURES 15–29. A size invariant comparison of the marginal hook sickles of two new species of Gyrodactylus with the nine species previously recorded infecting poeciliids. 15. Gyrodactylus milleri Harris & Cable, 2000 (re-examination of the small, common form of marginal hook); 16. Overlay of G. milleri with G. j aroc h o sp. nov. (broken line); 17. Overlay of G. milleri with G. xalapensis sp. nov. (broken line); 18. Gyrodactylus pictae Cable, van Oosterhout, Barson & Harris, 2005 (re-examination); 19. Overlay of G. pictae with G. ja ro c ho sp. nov. (broken line); 20. Overlay of G. pictae with G. xalapensis sp. nov. (broken line); 21. Gyrodactylus poeciliae Harris & Cable, 2000 (re-examination); 22. Overlay of G. poeciliae with G. jaroc h o sp. nov. (broken line); 23. Overlay of G. poeciliae with G. xalapensis sp. nov. (broken line); 24. Gyrodactylus rasini Lucký, 1973 (re-examination); 25. Overlay of G. r a s i n i with G. j a ro c ho sp. nov. (broken line); 26. Overlay of G. rasini with G. xalapensis sp. nov. (broken line); 27. Scanning electron micrograph of Gyrodactylus turnbulli Harris, 1986 from Andrew P. Shinn's collection (re-examination); 28. Overlay of G. turnbulli with G. j a ro c ho sp. nov. (broken line); 29. Overlay of G. turnbulli with G. xalapensis sp. nov. (broken line). Scale bars = 3 µm.
Data from: How conflict shapes evolution in poeciliid fishes
Open the record for dataset details and reuse information.
Data from: The rediscovery of a long described species reveals additional complexity in speciation patterns of poeciliid fishes in sulfide springs
Open the record for dataset details and reuse information.
Data from: Costs and benefits of polyandry in a placental poeciliid fish Heterandria formosa are in accordance with the parent-offspring conflict theory of placentation
In viviparous species, a conflict over maternal resource allocation may arise between mothers and embryos, between siblings, and between maternal and paternal genes within an embryo due to relatedness asymmetries. We performed two experiments to study the effects of polyandry and brood relatedness on offspring growth in a placental fish (Heterandria formosa). Polyandry was beneficial as it increased the probability of pregnancy, possibly to avoid genetic incompatibility. However, females mated to four males produced offspring that had a longer maturation time than those of monandrous females. When within-brood relatedness was manipulated, the size of the newborn offspring decreased with time in low relatedness treatment, while in highly related broods offspring size was constant. Low within-brood relatedness may lead to less cooperative offspring in terms of resource extraction from the mother, which may lead to impaired development during gestation. Offspring conflict may thus reduce the benefits of polyandry in viviparous species.
Data from: Costs and benefits of polyandry in a placental poeciliid fish Heterandria formosa are in accordance with the parent-offspring conflict theory of placentation
Open the record for dataset details and reuse information.
Genome annotation of the blackstripe livebearer Poeciliopsis prolifica, a placental Poeciliid for understanding fish placenta evolution
GEO Series GSE221844. Poeciliopsis prolifica. 16 samples. Type: Expression profiling by high throughput sequencing.
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
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.