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12,632 results for “fishes”
FIGURE 26 in Guide to the Parasites of Fishes of Canada Part V: Nematoda
FIGURE 26. Anguillicola crassus Kuwahara, Niimi & Itagaki, 1974. A. female, buccal capsule; B. male, anterior end; C. female, tail; D. male, tail with five rather than the usual six caudal papillae; E. vulva; F. egg containing 2 nd - stage larva. (Redrawn from Moravec 2013)
FIGURE 33 in Guide to the Parasites of Fishes of Canada Part V: Nematoda
FIGURE 33. Philometra rubra (Leidy, 1856): gravid females. A. en face view; B. anterior end, lateral view; C. posterior end, dorso-ventral view. (Redrawn from Moravec et al. 2013)
FIGURE 36 in Guide to the Parasites of Fishes of Canada Part V: Nematoda
FIGURE 36. Philonema agubernaculum Simon & Simon, 1936. A. male, posterior end; B. female, anterior end; C. female, posterior end. (Redrawn from Simon & Simon 1936 but with the addition in B. of a nerve ring)
FIGURE 30 in Guide to the Parasites of Fishes of Canada Part V: Nematoda
FIGURE 30. Ichthyofilaria canadensis Appy, Anderson & Khan, 1985. A. holotype, anterior end, lateral view; B. holotype, posterior end, lateral view; C. paratype, vulva and vagina, lateral view. (Redrawn from Appy et al. 1985)
FIGURE 27 in Guide to the Parasites of Fishes of Canada Part V: Nematoda
FIGURE 27. Daniconema anguillae Moravec & Køie, 1987. A. female, head, lateral view; B. female, anterior end, lateral view; C. male, posterior end, lateral view. (Redrawn from Moravec 2013)
FIGURE 18 in Guide to the Parasites of Fishes of Canada Part V: Nematoda
FIGURE 18. Capillaria (Procapillaria) margolisi Moravec & McDonald, 1981. A. anterior end; B. male, posterior end, lateral view; C. male, tail, ventral view; D. vulvar region; E. mature egg. (Redrawn from Moravec 2001)
FIGURE 24 in Guide to the Parasites of Fishes of Canada Part V: Nematoda
FIGURE 24. Pseudocapillaria (Pseudocapillaria) tomentosa (Dujardin, 1843) Moravec, 1987. A. male, posterior end, lateral view; B. male, tail, ventral view; C. female, vulvar region. (Redrawn from Moravec 2001)
FIGURE 25 in Guide to the Parasites of Fishes of Canada Part V: Nematoda
FIGURE 25. Huffmanela canadensis Moravec, Conboy & Speare, 2005. A. male, anterior end; B. male, oesophago-intestinal junction; C. male tail, ventral view; D. female, vulvar region; E. female tail, lateral view; F. most developed egg ex uterus; G. egg, dark, fully developed ex host tissue, showing surface ridges; H. egg, dark, fully developed, contains larva. (Redrawn from Moravec et al. 2005)
FIGURE 15 in Guide to the Parasites of Fishes of Canada Part V: Nematoda
FIGURE 15. * Dioctophyme renale (Goeze, 1782) Stiles, 1901. A. en face view of larva; B. anterior end of larva; C. and D. (contiguous) anterior third of larva. (Redrawn from Mace & Anderson 1975)
FIGURE 35 in Guide to the Parasites of Fishes of Canada Part V: Nematoda
FIGURE 35. Philometroides nodulosus (Thomas, 1929) Dailey, 1967. A. adult male, en face view; B. adult male, posterior end, lateral view; C. adult female, en face view; D. adult female, anterior end, lateral view; E. adult female, posterior end, lateral view. (Redrawn from Dailey 1966)
FIGURE 22 in Guide to the Parasites of Fishes of Canada Part V: Nematoda
FIGURE 22. Paracapillaria (Paracapillaria) parophrysi (Moravec, Margolis & McDonald, 1981) Moravec, 1982. A. male, tail, ventral view; B. male, tail, lateral view; C. female, vulvar region; D. egg. (Redrawn from Moravec 2001)
FIGURE 31 in Guide to the Parasites of Fishes of Canada Part V: Nematoda
FIGURE 31. Philometra cylindracea (Ward & Magath, 1917) Van Cleave & Mueller, 1934. A. male, posterior end; B. female, anterior end; C. female, posterior end. (Redrawn from Molnar & Fernando 1975 a)
FIGURE 32 in Guide to the Parasites of Fishes of Canada Part V: Nematoda
FIGURE 32. Philometra kobuleji Molnar & Fernando, 1975. A. male, anterior end; B. male, posterior end; C. female, anterior end; D. female, posterior end. (Redrawn from Molnar & Fernando 1975 b)
FIGURE 34. Philometroides huronensis Uhazy, 1976. A in Guide to the Parasites of Fishes of Canada Part V: Nematoda
FIGURE 34. Philometroides huronensis Uhazy, 1976. A. male, anterior region, ventro-lateral view; B. male, posterior region, lateral view; C. gravid female, anterior region, lateral view; D. gravid female, posterior region, ventral view. (Redrawn from Uhazy 1976)
FIGURE 21 in Guide to the Parasites of Fishes of Canada Part V: Nematoda
FIGURE 21. Piscicapillaria (Piscicapillaria) freemani (Moravec, Margolis & McDonald, 1981) Moravec, 1982. A. male, posterior end; B. male, tail, ventral view; C. female, vulvar region; D. egg. (Redrawn from Moravec 2001)
FIGURE 16 in Guide to the Parasites of Fishes of Canada Part V: Nematoda
FIGURE 16. * Eustrongylides tubifex Jägerskiöld, 1909. A. male larva, posterior end, dorsal view; B. female larva, posterior end, lateral view; C. male larva, anterior end, dorsal view. (Redrawn from Measures 1988 b)
FIGURE 15 in Guide to the Parasites of Fishes of Canada Part V: Nematoda
FIGURE 15. * Dioctophyme renale (Goeze, 1782) Stiles, 1901. A. en face view of larva; B. anterior end of larva; C. and D. (contiguous) anterior third of larva. (Redrawn from Mace & Anderson 1975)
Tropical range extending herbivorous fishes gain foraging benefits by shoaling with native temperate species
<p>Data1.csv contains the data to analyze the abundance of fish herbivore individuals as a function of the species and the type of shoal. </p> <p>Data2.xlsx contains the data to analyze the foraging activity of the herbivorous fish found in our study. We explored the relationship between bite rates per fish min-1 and the species, shoal type and shoal size. </p> <p>Data3.xlslx contains the data to analyze the shoaling configurations based on species origin. </p> <p>Minguito-Frutos_etal.R contains the R reproducible code to run all the analyses carried out in this study. </p> <p>Species_coocurrence_based_associations.R contains the reproducible R code to run the analyses to explore the strength of mixed-species associations between herbivorous fish. </p> <p>-------------------------------------------------------------------------------------------------------------------------------------------</p> <p>Data1.csv, Data2.xlsx, Data3.xlslx, and Minguito-Frutos_etal.R contains the data and code used before submitting this work. </p> <p>-------------------------------------------------------------------------------------------------------------------------------------------<br><br>Minguito_Frutos_etal2025_SR_Rscript, Data_Rev_SR, and Data2_Rev_SR contain the data and code derived from the last submission to Scientific Reports. In this latest version, we modified our analyses of fish foraging activity that now evaluate: (i) the frequency and size of mixed-species shoals based on the origin of the species examined (using data in Data2_Rev_SR), (ii) the strength of pair-wise associations between native and range-expanding species (using Species_coocurrence_based_associations.R), and (iii) how the foraging activity of native and range-extending fishes was shaped by the composition and size of the shoals (using data in Data_Rev_SR). </p>
Data and code: Microgeographic variation in demography and thermal regimes stabilize regional abundance of a widespread freshwater fish
<p>Predicting the persistence of species under climate change is an increasingly important objective in ecological research and management. However, biotic and abiotic heterogeneity can drive asynchrony in population responses at small spatial scales, complicating species-level assessments. For widely distributed species consisting of many fragmented populations, such as brook trout (<em>Salvelinus fontinalis</em>), understanding drivers of asynchrony in population dynamics can improve predictions of range-wide climate impacts. We analyzed demographic time-series from mark-recapture surveys of eleven natural brook trout populations in eastern Canada over 13 years to examine the extent, drivers, and consequences of fine-scale population variation. The focal populations were genetically differentiated, occupied a small area (~25 km<sup>2</sup>) with few human impacts, and experienced similar climate conditions. Recruitment was highly asynchronous, weakly related to climate variables, and showed population-specific relationships with other demographic processes, generating diverse population dynamics. In contrast, individual growth was mostly synchronized among populations and driven by a shared positive relationship with stream temperature. Outputs from population-specific models were unrelated to four of five hypothesized drivers (recruitment, growth, reproductive success, phylogenetic distance), but variation in groundwater inputs strongly influenced stream temperature regimes and stock-recruitment relationships. Finally, population asynchrony generated a portfolio effect that stabilized regional species abundance. Our results demonstrate that population demographic and habitat diversity at microgeographic scales can play a significant role in moderating species responses to climate change. Moreover, we suggest that the absence of human activities within study streams preserved natural habitat variation and contributed to asynchrony in brook trout abundance, while the small study area eased monitoring and increased the likelihood of detecting asynchrony. Therefore, anthropogenic habitat degradation, landscape context, and spatial scale must be considered when developing management strategies to monitor and maintain populations that are diverse, stable, and resilient to climate change.</p>
Fig. 5 in A New Middle Devonian Arthrodire (Placoderm Fish) from the Broken River Area, Queensland
Fig. 5. Brachythoracid trunk armour restorations. (A,B) Taemasosteus (Early Devonian, Burrinjuck, NSW). (A) Posterior view of skull (from White, 1978: fig. 79); (B) anterior view of trunk armour, restored from individual bones, using Harrytoombsia as a model, as illustrated by Miles & Dennis (1979: fig. 9). (C) Confractamnis johnjelli n.gen. and n.sp.; trunk armour restoration, anterior view, based on Taemasosteus and Harrytoombsia.
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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.