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.
11
datasets available to search
ShareScore release 0.9.0
Dataset results
11 results for “Percichthyidae”
Data from: Genome-wide SNPs resolve a key conflict between sequence and allozyme data to confirm another threatened candidate species of river blackfishes (Teleostei: Percichthyidae: Gadopsis)
Conflicting results from different molecular datasets have long confounded our ability to characterise species boundaries. Here we use genome-wide SNP data and an expanded allozyme dataset to resolve conflicting systematic hypotheses on an enigmatic group of fishes (Gadopsis, river blackfishes, Percichthyidae) restricted to southeastern Australia. Previous work based on three sets of molecular markers: mtDNA, nuclear intron DNA and 51 allozyme loci was unable to clearly resolve the status of a putative fifth candidate species (SWV) within Gadopsis marmoratus. Resolving the taxonomic status of candidate species SWV is particularly critical as based on IUCN criteria this taxon would be considered Critically Endangered. After all filtering steps we retained a subset of 10,862 putatively unlinked SNP loci for population genetic and phylogenomic analyses. Analyses of SNP loci based on maximum likelihood, fastSTRUCTURE and DAPC were all consistent with the previous and updated allozyme results supporting the validity of the candidate Gadopsis species SWV. Immediate conservation actions should focus on preventing take by anglers, protection of water resources to sustain perennial reaches and drought refuge pools, and aquatic and riparian habitat protection and improvement. In addition, a formal morphological taxonomic review of the genus Gadopsis is urgently required.
Data from: A multigene molecular assessment of cryptic biodiversity in the iconic freshwater blackfishes (Teleostei: Percichthyidae: Gadopsis) of south-eastern Australia
Freshwater biodiversity is under ever increasing threat from human activities, and its conservation and management require a sound knowledge of species-level taxonomy. Cryptic biodiversity is a common feature for aquatic systems, particularly in Australia, where recent genetic assessments suggest that the actual number of freshwater fish species may be considerably higher than currently listed. The freshwater blackfishes (genus Gadopsis) are an iconic group in south-eastern Australia and, in combination with their broad, naturally divided distribution and biological attributes that might limit dispersal, as well as ongoing taxonomic uncertainty, they comprise an ideal study group for assessing cryptic biodiversity. We used a multigene molecular assessment including both nuclear (51 allozyme loci; two S7 introns) and matrilineal markers (cytb) to assess species boundaries and broad genetic substructure within freshwater blackfishes. Range-wide examination demonstrates the presence of at least six candidate species across two nominal taxa, Gadopsis marmoratus and Gadopsis bispinosus. Phylogeographical patterns often aligned to purported biogeographical provinces but occasionally reflected more restricted and unexpected relationships. We highlight key issues with taxonomy, conservation, and management for a species group in a highly modified region.
Data from: The role of continental shelf width in determining freshwater phylogeographic patterns in southeastern Australian pygmy perches (Teleostei: Percichthyidae)
Biogeographic patterns displayed by obligate freshwater organisms are intimately related to the nature and extent of connectivity between suitable habitats. Two of the more significant barriers to freshwater connections are seawater and major drainage divides. South-eastern Australia provides a contrast between these barriers as it has discrete areas that are likely influenced to a greater or lesser extent by each barrier type. We use continental shelf width as a proxy for the potential degree of river coalescence during low sea levels. Our specific hypothesis is that the degree of phylogeographic divergence between coastal river basins should correspond to the continental shelf width of each region. This predicts that genetic divergences between river basins should be lowest in regions with a wider continental shelf and that regions with similar continental shelf width should have similar genetic divergences. Pygmy perches (Nannoperca australis and Nannoperca 'flindersi') in south-eastern Australia provide an ideal opportunity to test these biogeographic hypotheses. Phylogeographic patterns were examined based on range-wide sampling of 82 populations for cytochrome b and 23 polymorphic allozyme loci. Our results recovered only limited support for our continental shelf width hypothesis, although patterns within Bass clade were largely congruent with reconstructed low sea-level drainage patterns. In addition, we identified several instances of drainage divide crossings, typically associated with low elevational differences. Our results demonstrate high levels of genetic heterogeneity with important conservation implications, especially for declining populations in the Murray–Darling Basin and a highly restricted disjunct population in Ansons River, Tasmania.
FIGURE 4 in Nannoperca pygmaea, a new species of pygmy perch (Teleostei: Percichthyidae) from Western Australia
FIGURE 4. NJ tree based on pairwise Nei Ds among sties for Nannoperca vittata in seven catchments (Angove River, Goodga River, King River, Mitchell/Hay River, Kalgan River, Quickup River and Marbelup Brook) and Nannoperca pygmaea in the Mitchell/Hay River. See Fig. 1 for site localities.
FIGURE 3 in Nannoperca pygmaea, a new species of pygmy perch (Teleostei: Percichthyidae) from Western Australia
FIGURE 3. Principal Co-ordinates Analysis (PCA) of Nannoperca vittata from six river systems (Mitchell (Hay) River, Marbelup Brook, King River, Kalgan River, Angove River, Goodga River) and Nannoperca pygmaea genotyped in the allozyme study. The relative PCA scores have been plotted for the first (X-axis) and second (Y-axis) dimensions, which individually explained 65% and 9%, respectively, of the total multivariate variation. See Fig. 1 for site localities.
FIGURE 2 in Nannoperca pygmaea, a new species of pygmy perch (Teleostei: Percichthyidae) from Western Australia
FIGURE 2. Percichthyidae of the South West Coastal Drainage Division, Western Australia. A. Nannoperca pygmaea sp. nov. (WAM P.33380–001, 31.8 mm SL). B. Nannoperca vittata. C. Nannatherina balstoni. D. Bostockia porosa. Bottom, holotype N. pygmaea sp. nov. Photographs S. Beatty and D. Morgan.
Data from: Genome-wide SNPs resolve a key conflict between sequence and allozyme data to confirm another threatened candidate species of river blackfishes (Teleostei: Percichthyidae: Gadopsis)
Open the record for dataset details and reuse information.
Data from: The role of continental shelf width in determining freshwater phylogeographic patterns in southeastern Australian pygmy perches (Teleostei: Percichthyidae)
Open the record for dataset details and reuse information.
Data from: A multigene molecular assessment of cryptic biodiversity in the iconic freshwater blackfishes (Teleostei: Percichthyidae: Gadopsis) of south-eastern Australia
Open the record for dataset details and reuse information.
FIGURE 5 in Nannoperca pygmaea, a new species of pygmy perch (Teleostei: Percichthyidae) from Western Australia
FIGURE 5. Type locality of Nannoperca pygmaea at the confluence of the Mitchell and Hay Rivers.
Figures 1-6 in The cephalic lateral line system of temperate perches (Perciformes: Percichthyidae) from Argentinean Patagonia
Figures 1-6. Cephalic lateral line canal system of juvenile perches. Diagram of dorsal and ventral view based on one specimen of Percichthys trucha, 43 mm SL (10380 MACN-Ict): (1) dorsal view showing the supraorbital canal (SOC) and the supraorbital commissure (SOCom); (2) ventral view showing the anterior part of the preopercular-mandibular canal (PMC); (3) lateral view based on a composite of specimens, showing the infraorbital canal (IOC), the preopercular section of the PMC, the temporal canal (TC), and the supratemporal canal (STC). (4-6) Photograph of the cephalic lateral line canal system of a P. trucha juvenile (43 mm SL) stained with hematoxylin: (4) dorsal view; (5) ventral view; (6) lateral view. Scale bars: 4 mm.
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.