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103 results for “teleost fish”
Fig. 10. Tortonian fish otoliths from northern Italy. A–E. Hoplostethus praemediterraneus Schubert, 1905 in Tortonian teleost otoliths from northern Italy: taxonomic synthesis and stratigraphic significance
Fig. 10. Tortonian fish otoliths from northern Italy. A–E. Hoplostethus praemediterraneus Schubert, 1905; A–B. Montegibbio, C–E. Sant'Agata Fossili (IRSNB P 9804–P 9808). F. Hoplostethus lawleyi Koken, 1891, Sant'Agata Fossili (IRSNB P 9809). G. Parascombrops mutinensis (Bassoli, 1906), Torrente Stirone (IRSNB P 9810). H. "Haemulon" lucidum (Bassoli, 1906), Montegibbio (IRSNB P 9811). I. Pomadasys cf. incisus (Bowdich, 1825), Sant'Agata Fossili (IRSNB P 9812). J. Epigonus constanciae (Giglioli, 1880), Torrente Stirone (IRSNB P 9813). K. Gerreidae indet., Montegibbio (IRSNB P 9814). L. Cepola macrophthalma (Linnaeus, 1758), Torrente Stirone (IRSNB P 9815). M. Epigonus italicus (Bassoli, 1906), Montegibbio (IRSNB P 9816). N. Dentex aff. maroccanus Valenciennes, 1830, Sant'Agata Fossili (IRSNB P 9817). O–Q. Owstonia neogenica (Nolf & Cappetta, 1989), Torrente Stirone (IRSNB P 9818–P 9820). 1 = ventral view; 2 = inner view; 3 = anterior view. Scale bars = 1 mm.
Data from: Do habitat shifts drive the diversity in teleost fishes? An example from the pufferfishes (Tetraodontidae)
Habitat shifts are implicated as the cause of many vertebrate radiations, yet relatively few empirical studies quantify patterns of diversification following colonization of new habitats in fishes. The pufferfishes (family Tetraodontidae) occur in several habitats, including coral reefs and freshwater, which are thought to provide ecological opportunity for adaptive radiation, and thus provide a unique system for testing the hypothesis that shifts to new habitats alter diversification rates. To test this hypothesis we sequenced eight genes for 96 species of pufferfishes and closely related porcupine fishes, and added 19 species from sequences available in GenBank. We time-calibrated the molecular phylogeny using three fossils, and performed several comparative analyses to test whether colonization of novel habitats led to shifts in the rate of speciation and body size evolution, central predictions of clades experiencing ecological adaptive radiation.. Colonization of freshwater is associated with lower rates of cladogenesis in pufferfishes though these lineages also exhibit accelerated rates of body size evolution. Increased rates of cladogenesis are associated with transitions to coral reefs, but reef lineages surprisingly exhibit significantly lower rates of body size evolution. These results suggest that ecological opportunity afforded by novel habitats may be limited for pufferfishes due to competition with other species, constraints relating to pufferfish life history and trophic ecology, and other factors.
Fig 3 in Helminth Diversity In Teleost Fishes From The South Orkney Islands Region, West Antarctica
Fig 3. Cluster analysis of the similarity between the helminth communities of the shallow-water (SW) and deepwater (DW) populations of fish species determined by the Bray-Curtis index.
FIGURE 2 in The deep sea teleost fish fauna of the Brazilian North Coast
FIGURE 2 | Species of the order Anguilliformes, family Muraenidae, A. Gymnothorax conspersus, photograph by Revizee Score-North, B. Gymnothorax polygonius, photograph by Revizee Score-North, family Derychthyidae, C. Coloconger meadi, photograph by Revizee Score-North, and family Congridae, D. Ariosoma selenops, photograph by Revizee Score-North.
FIGURE 3 in The deep sea teleost fish fauna of the Brazilian North Coast
FIGURE 3 | Species of the order Ateleopodiformes, family Ateleopodidae, A. Ijimaia antillarum, photograph by PRODEMERSAL, Order Aulopiformes, family Synodontidae, B. Saurida caribbaea, photograph by Revizee Score-North, family Chlorophthalmidae, C. Parasudis truculenta, photograph by Revizee Score-North, family Alepisauridae, D. Alepisaurus brevirostris, photograph by PRODEMERSAL, order Polymixiiformes, family Polymixiidae, E. Polymixia lowei, photograph by Revizee Score-North, order Zeiformes, family Zeidae, F. Zenopsis conchifer, photograph by PRODEMERSAL, and order Gadiformes, family Macrouridae, G. Malacocephalus laevis, photograph by Revizee ScoreNorth.
Figure. Research area. Table 1 in Digenean and cestode parasites of teleost fish from the Eastern Black Sea Region
Figure. Research area. Table 1. Logistic values of the parasites (L: locality, T: Trabzon, R: Rize, A: Artvin, TPN: total parasite number, EFN: examined fish number, IFN: infected fish number, %: infection rate, MA: mean abundance, MI: mean intensity).
Figure 5 in Postmucilage status of teleost fish assemblages in the Sea of Marmara
Figure 5. Spatial variation of target (green bar), bycatch (blue bar) and total biomass (numbers above the bars) of teleost fish assemblages in the Sea of Marmara, Türkiye.
Figure 1 in Postmucilage status of teleost fish assemblages in the Sea of Marmara
Figure 1. Map of the study area with stations and sampling points (red marks) in the Sea of Marmara, Türkiye. Dashed black lines represent the limit of the stations (S1: Erdek Gulf, S2: Marmara Islands, S3: Bandırma Gulf, S4: Gemlik Gulf, S5: İzmit Gulf, S6: Prens Islands, S7: Avcılar, S8: Silivri, S9: Tekirdağ, S10: Şarköy).
Figure 1 in Ontogenetic transition from unicuspid to multicuspid oral dentition in a teleost fish: Astyanax mexicanus, the Mexican tetra (Ostariophysi: Characidae)
Figure 1. First-generation dentition in Astyanax mexicanus. Asterisks indicate positions of teeth. A, 5 days postfertilization (dpf) (4.5 mm total length (TL, measured to the nearest 0.1 mm with calipers prior to fixation)) showing one tooth on each jaw quadrant, left side. M, Meckel's cartilage; P, premaxilla. B, 10 dpf (5.2 mm TL) showing three teeth on the right premaxilla; one tooth is also visible on the lower jaw. C, 28 dpf (7.8 mm TL) showing five attached teeth, and one unattached, on the right premaxilla. D, 40 dpf (9.2 mm TL) showing signs of resorption (left arrow) and replacement by a second generation of unicuspid teeth (right arrow) on the left premaxilla. Scale bars = 100 µm.
Figure 10 in Ontogenetic transition from unicuspid to multicuspid oral dentition in a teleost fish: Astyanax mexicanus, the Mexican tetra (Ostariophysi: Characidae)
Figure 10. Age in days (A), total length (TL) in mm (B) and maximum tooth height in mm (C) at the onset of tooth generations 1–4.
Figure 6 in Ontogenetic transition from unicuspid to multicuspid oral dentition in a teleost fish: Astyanax mexicanus, the Mexican tetra (Ostariophysi: Characidae)
Figure 6. Features of the dentition of Astyanax mexicanus as a function of age in days. A, total number of teeth. B, numbers of unicuspid and multicuspid teeth. C, total number of cusps.
Figure 2 in Ontogenetic transition from unicuspid to multicuspid oral dentition in a teleost fish: Astyanax mexicanus, the Mexican tetra (Ostariophysi: Characidae)
Figure 2. Order of appearance of the first-generation dentition on one half (right) of the jaw in Astyanax mexicanus. A, schematic of the premaxillary and lower jaw. Order is indicated by numbers. B, graph of tooth appearance patterns on the premaxilla. Numbers represent tooth positions and time runs vertically down. C, graph of tooth appearance patterns on the lower jaw. Abbreviations: P, premaxilla; LJ, lower jaw, C, caudal; R, rostral.
Figure 9 in Ontogenetic transition from unicuspid to multicuspid oral dentition in a teleost fish: Astyanax mexicanus, the Mexican tetra (Ostariophysi: Characidae)
Figure 9. Number of cusps per tooth (calculated as total number of cusps/total number of teeth) as a function of age in da ys (A) and log total length (TL) in mm (B).
Data from: Field metabolic rates of teleost fishes are recorded in otolith carbonate
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Data from: Do habitat shifts drive the diversity in teleost fishes? An example from the pufferfishes (Tetraodontidae)
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Single-Cell Transcriptomic Analysis Reveals Neutrophil as Orchestrator during β-Glucan-Induced Trained Immunity in a Teleost Fish
GEO Series GSE195628. Scophthalmus maximus. 8 samples. Type: Expression profiling by high throughput sequencing.
Mapping active promoters by ChIP-seq profiling of H3K4me3 in cichlid fish - a first step to uncover cis-regulatory elements in ecological model teleosts
GEO Series GSE62791. Oreochromis niloticus. 1 samples. Type: Genome binding/occupancy profiling by high throughput sequencing.
Data from: Cluster expansion of apolipoprotein D (ApoD) genes in teleost fishes
Background: Gene and genome duplication play important roles in the evolution of gene function. Compared to individual duplicated genes, gene clusters attract particular attention considering their frequent associations with innovation and adaptation. Here, we report for the first time the expansion of the apolipoprotein D (ApoD) ligand-transporter genes in a cluster manner specific to teleost fishes. Results: Based on comparative genomic and transcriptomic analyses, protein 3D structure comparison, positive selection detection and breakpoints detection, the single ApoD gene in the ancestor expanded into two clusters following a dynamic evolutionary pattern in teleost fishes. Orthologous genes show conserved expression patterns, whereas lineage-specific duplicated genes show tissue-specific expression patterns and even evolve new gene expression profiles. Positive selection occurred in branches before and after gene duplication, especially for lineage-specific duplicated genes. Cluster analyses based on protein 3D structure comparisons, especially comparisons of the four loops at the opening side, show gene duplication-segregating patterns. Duplicated ApoD genes are predicted to be associated with forkhead transcription factors and MAPK genes. ApoD clusters are located next to the breakpoints of genome rearrangements. Conclusions: Here, we report the expansion of ApoD genes specific to teleost fishes in a cluster manner for the first time. Neofunctionalization and subfunctionalization were observed at both the protein and expression levels after duplication. Evidence from different aspects, i.e., abnormal expression-induced disease in humans, fish-specific expansion, predicted associations with forkhead transcription factors and MAPK genes, specific expression patterns in tissues related to sexual selection and adaptation, duplicated genes under positive selection and their location next to the breakpoints of genome rearrangements, suggests the potentially advantageous roles of ApoD genes in teleost fishes. The cluster expansion of ApoD genes specific to teleost fishes provides thus an ideal evo-devo model for studying gene duplication, cluster maintenance and new gene function emergence.
Figure 2 in Postmucilage status of teleost fish assemblages in the Sea of Marmara
Figure 2. Evaluation of retained catch.
Data from: Cluster expansion of apolipoprotein D (ApoD) genes in teleost fishes
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Allen Brain Atlas
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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
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