Find research datasets worth reusing

opencc-by-4.0Mar 2021View details →

Figure 2 in Freshwater Decapods of Godavari River, Bhadrachalam, Telangana

Figure 2. Line chart of species distribution in each sampling location.

opencc-zeroApr 2024View details →

An updated survey of freshwater fishes within Letchworth State Park and surrounding areas of the Genesee River

The goal of this study was to gather information about freshwater fishes in Letchworth State Park (42.615275°N, -77.992825°W), a portion of New York State-owned land located in the Genesee River watershed that lacks known data about its fish diversity. The fish collection took place between 2017 and 2019 in the Genesse River upstream and downstream of the falls using gill, hoop, and seine netting and electrofishing. This was the first attempt at a comprehensive survey of this portion of the river, which allowed for a baseline to be established regarding fish biodiversity in the region. The updated total number of species found in this portion of the Genesee River was 25, 22 of which were newly identified downstream of the falls, in Letchworth State Park. We encourage further collection and continuation of this survey with consistent sampling techniques to promote ongoing field surveys and fish collection that inform freshwater fish diversity in stream ecosystems across the globe.

opencc-by-4.0Dec 2023View details →

FIGURE 2 in Environmental correlates of adaptive diversification in postglacial freshwater fishes

FIGURE 2 Legend on next page.

opencc-by-4.0Apr 2024View details →

Dataset for "Competing climate feedbacks of ice sheet freshwater discharge in a warming world", Part II

This is Part II of the output dataset from coupled ice sheet-climate model simulations that investigate the interactions between ice sheet freshwater flux and the warming climate. Description of models, coupling scheme, and design of these simulations is provided in a paper titled "Competing climate feedbacks of ice sheet freshwater discharge in a warming world", which is currently under peer review. More information will be updated when available.

opencc-by-4.0Apr 2024View details →

Dataset for "Competing climate feedbacks of ice sheet freshwater discharge in a warming world", Part I

This is Part I of the output dataset from coupled ice sheet-climate model simulations that investigate the interactions between ice sheet freshwater flux and the warming climate. Description of models, coupling scheme, and design of these simulations is provided in a paper titled "Competing climate feedbacks of ice sheet freshwater discharge in a warming world", which is currently under peer review. More information will be updated when available.

opencc-by-4.0May 2016View details →

Figure 1 in A histopathological study on the freshwater fish species chub (Squalius cephalus) in the Karasu River, Turkey

Figure 1. Map of Erzurum city and the basin of the Karasu River showing the three sampling sites.

opencc-by-4.0Apr 2022View details →

Global extinction probabilities of terrestrial, freshwater, and marine species groups

This is the updated dataset presented in the manuscript titled "Global extinction probabilities of terrestrial, freshwater, and marine species groups". The dataset gives the code (R code), as well as the resulting raster files for the suggested Global extinction probabilities for different taxonomic groups, for use in Life Cycle Impact Assessment (LCIA). We supply the results on 5arc minute resolution, aggregated for relevant spatial scales (e.g. terrestrial ecoregions or watersheds), as well as at country scale. For application in LCIA, we recommend applying GEPs to CFs with corresponding species groups and spatial scales. If the species group of the CFs do not match any of the provided GEPs, see (1); if the spatial scale of the CFs do not match any of the provided GEPs, see (2). <ol> <li>If the species groups of the CFs do not match any of the provided sets of GEPs, we recommend recalculating GEPs for corresponding species groups and spatial scales based on the provided R scripts (e.g., see the R script for the freshwater heterotroph GEPs). Alternatively, GEPs can be aggregated to species group combinations by calculating species number-weighted GEP averages of the existing GEPs (see Table 4 in the article for species numbers per species group). In case of the latter approach, we recommend calculate GEP averages for all regions across the world (and not just those included in the analysis) and normalise the region-level average GEPs by the sum of the region-level average GEPs for consistency with the GEP concept.</li> <li>In addition to species group aggregation, GEPs can be aggregated to different spatial scales by calculating the sum of the cell-level GEPs contained per region (e.g., see R scripts).</li> </ol>   Updates: corrected mistakes in cnidarians. Removedcpiuntry GEPs for marine species groups.

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.

opencc-zeroNov 2021View details →

Data From: Fit and fatty freshwater fish: Contrasting polyunsaturated fatty acid phenotypes between hybridizing stickleback lineages

Long-chain polyunsaturated fatty acids are biologically important lipids that are unevenly distributed between and throughout environments. This heterogeneity can affect the evolution of metabolic processes, as populations adapt to the resource landscape that they encounter. Here, we compare fatty acid phenotypes of stickleback over two time scales of evolutionary divergence: between two lineages with different metabolic capacities for fatty acid synthesis (i.e. different copy number of the fatty acid desaturase gene; FADS2) that independently colonized European freshwaters during the Pleistocene and Holocene; and between two ecotypes within each lineage that have diverged more recently (~150 years) in different habitats (i.e. lake and stream). We measured fatty acid profiles of wild-caught and lab-reared fish for each lineage and ecotype combination after rearing lab fish on a diet deficient in omega-3 long-chain polyunsaturated fatty acids. Since these lineages hybridize in nature, we also measured profiles of lab-reared hybrids and backcrosses raised on the same deficient diet. Wild fish showed strong compositional differences in fatty acids between habitats, lineages, and sexes. Common garden fish had generally lower polyunsaturated fatty acid levels than wild fish, and females had lower omega-6:omega-3 than males. Fish from the lineage with fewer FADS2 copies also had lower levels of docosahexaenoic acid. Overall, we document divergence in fatty acid phenotypes between stickleback lineages with different histories of freshwater colonization, and between ecotypes in the early stages of adaptive population divergence.

opencc-by-4.0Sep 2021View details →

Fig. 5 in A New Cleaning Method for Accurate Examination of Freshwater Gastropod Shell Specimens Covered with Iron-rich Deposits

Fig. 5. Aperture-closing method using kneaded eraser.

opencc-zeroNov 2021View details →

Predictor complexity and feature selection affect Maxent model transferability: evidence from global freshwater invasive species

This dataset contains the following: <ol> <li>Occurrence datasets of five global freshwater invasive species (African sharptooth catfish Clarias gariepinus, Mozambique tilapia Oreochromis mossambicus, American bullfrog Lithobates catesbeianus, red swamp crayfish Procambarus clarkii, and Australian redclaw crayfish Cherax quadricarinatus)</li> <li>Background points for presence-only ecological niche modelling (e.g., Maxent)</li> <li>Example R script (with annotations inline) to conduct model tuning and transferability assessments using Maxent</li> </ol>

opencc-by-4.0May 2002View details →

Figure 1 in A New Species of the Freshwater Crayfish Genus Euastacus (Decapoda: Parastacidae) from Northeastern New South Wales, Australia

Figure 1. Collection locality of Euastacus mirangudjin n.sp.

opencc-by-4.0May 2002View details →

Figure 2. Euastacus mirangudjin n in A New Species of the Freshwater Crayfish Genus Euastacus (Decapoda: Parastacidae) from Northeastern New South Wales, Australia

Figure 2. Euastacus mirangudjin n.sp. Dorsal view, holotype. Photograph by Max Egan.

opencc-zeroFeb 2022View details →

Fish zeta diversity responses to human pressures and cumulative effects across a freshwater basin

Aim: Declining biodiversity across ecosystems and myriad human pressures necessitate high-level regional assessments for effective management. Evaluation of biodiversity patterns and stressor accumulation through beta diversity and cumulative effect analyses are two key methods for management prioritization. This study links these concepts to develop a novel cumulative effect metric based on beta diversity responses. Location: Fraser River basin, British Columbia, Canada. Methods: Multi-Site Generalized Dissimilarity Models were used to evaluate non-linear relationships between fish species compositional differences (ζn, number of shared species across any number of watersheds compared) and human pressure, environmental, and geospatial differences among all watersheds and within low, mid-, and high elevation clusters. A cumulative effect metric was calculated as the sum of response values generated by the model for each human pressure variable specific to each watershed, when evaluated for ζ2 (equivalent to pairwise beta diversity). This metric was tested against the Local Contribution of each watershed to Beta Diversity to determine whether watersheds with unique communities had low cumulative effects and are therefore candidates for conservation, and conversely, whether watersheds with non-distinctive communities had high cumulative effects and warrant restoration. Species Contributions to Beta Diversity were also assessed across the basin. Results: Zeta diversity across low elevation watersheds indicated stronger filtering by human pressures than mid- and high elevations, which showed more stochastic community assembly. The relative importance and response to human pressures varied based on the diversity component (i.e., total diversity including compositional nestedness vs. turnover) and order of zeta (number of watersheds compared). Cumulative effects were negatively related to community uniqueness, supporting the use of these metrics for developing management priorities. Main Conclusions: This assessment contributes to biodiversity conservation efforts by identifying important watersheds, species, and human pressures to manage, as well as providing a cumulative effect metric directly based on biodiversity responses.

opencc-zeroFeb 2022View details →

Variable freshwater influences on the abundance of vibrio vulnificus in a tropical urban estuary

Our data illustrate that, in the absence of strong seasonal variation in water temperature in the tropics, variation in salinity driven by rainfall becomes a primary controlling variable on V. vulnificus abundance. There is thus a tendency for a rainfall-driven seasonal cycle in V. vulnificus abundance which is inverted from the temperature-driven seasonal cycle at higher latitudes.

opencc-zeroFeb 2022View details →

Alternative reproductive tactics in male freshwater fish influence the accuracy of species recognition

Sexual conflict can result in coercive mating. Because males bear low costs of heterospecific mating, coercive males may engage in misdirected mating attempts toward heterospecific females. In contrast, sexual selection through consensual mate choice can cause mate recognition cues among species to diverge, leading to more accurate species recognition. Some species show both coercive mating and mate choice–associated courtship behaviors as male alternative reproductive tactics. We hypothesized that if the selection pressures on each tactic differ, then the accuracy of species recognition would also change depending on the mating tactic adopted. We tested this hypothesis in the guppy (Poecilia reticulata) and mosquitofish (Gambusia affinis) by a series of choice experiments. Poecilia reticulata and G. affinis males both showed imperfect species recognition and directed all components of mating behavior towards heterospecific females. They tended to direct courtship displays more frequently towards conspecific than heterospecific females. With male P. reticulata, however, accurate species recognition disappeared when they attempted coercive copulation: they directed coercions more frequently towards heterospecific females. We also found that heterospecific sexual interaction had little effect on the fecundity of gravid females, which suggests that pre-pregnancy interactions likely underpin the exclusion of G. affinis by P. reticulata in our region.