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96 results for “fish behaviour”
Supplementary material 2 from: Mohammed E, Amen R, Abdelwahab HM, Winkelmann C (2023) Potential impacts of invasive crayfish on native benthic fish: shelter use and agonistic behaviour. NeoBiota 83: 131-153. https://doi.org/10.3897/neobiota.83.102975
Scatterplot of the frequency of crayfish aggressive movements vs. carapace length, chela length, body mass, stone loach standard length, and stone loach body mass
Data from: Larval traits carry over to affect post-settlement behaviour in a common coral reef fish
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Dataset from: Positive indirect effects of top-predators on the survival and behaviour of juvenile fishes
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Data from: Anxiety-like behaviour increases safety from fish predation in an amphipod crustacea
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Data from: Resource heterogeneity but not inbreeding affects growth and grouping behaviour in socially foraging juvenile cichlid fish
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Data from: Increased behavioural lateralization in parasitized coral reef fish
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Data from: Behavioural red-light sensitivity in fish according to the optomotor response
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Data from: Hierarchical behaviour, habitat use and species size differences shape evolutionary outcomes of hybridization in a coral reef fish.
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Data from: Repeatability of circadian behavioural variation revealed in free-ranging marine fish
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Ocean-scale footprint of a highly mobile fishing fleet: social-ecological drivers of fleet behaviour and evidence of illegal fishing
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Data from: Does mating behaviour affect connectivity in marine fishes? Comparative population genetics of two protogynous groupers (Family Serranidae)
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Personality traits and behaviour vary among invasive, native and hatchery-reared fish
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Data from: Shape up or ship out: migratory behaviour predicts morphology across spatial scale in a freshwater fish
1. Migration is a widespread phenomenon, with powerful ecological and evolutionary consequences. Morphological adaptations to reduce the energetic costs associated with migratory transport are commonly documented for migratory species. However, few studies have investigated whether variation in body morphology can be explained by variation in migratory strategy within a species. 2. We address this question in roach Rutilus rutilus, a partially migratory freshwater fish that migrates from lakes into streams during winter. We both compare body shape between populations that differ in migratory opportunity (open vs. closed lakes), and between individuals from a single population that vary in migratory propensity (migrants and residents from a partially migratory population). Following hydrodynamic theory, we posit that migrants should have a more shallow body depth, to reduce the costs associated with migrating into streams with higher flow conditions than the lakes the residents occupy all year round. 3. We find evidence both across and within populations to support our prediction, with individuals from open lakes and migrants from the partially migratory population having a more slender, shallow-bodied morphology than fish from closed lakes and all-year residents. 4. Our data suggest that a shallow body morphology is beneficial to migratory individuals and our study is one of the first to link migratory strategy and intraspecific variation in body shape.
Data from: The melanocortin system regulates body pigmentation and social behaviour in a colour polymorphic cichlid fish
The melanocortin system is a neuroendocrine system that regulates a range of physiological and behavioural processes. We examined the extent to which the melanocortin system simultaneously regulates colour and behaviour in the cichlid fish Astatotilapia burtoni. We found that yellow males are more aggressive than blue males, in line with previous studies. We then found that exogenous α-melanocyte-stimulating hormone (α-MSH) increases yellowness of the body and dispersal of xanthophore pigments in both morphs. However, α-MSH had a morph-specific effect on aggression, with only blue males showing an increase in the rate of aggression. Exogenous agouti signalling peptide (ASIP), a melanocortin antagonist, did not affect coloration but reduced the rate of aggression in both colour morphs. Blue males had higher cortisol levels than yellow males. Neural gene expression of melanocortin receptors (mcr) and ligands was not differentially regulated between colour morphs. In the skin, however, mc1r and pro-opiomelanocortin (pomc) β were upregulated in blue males, while asip 1 was upregulated in yellow males. The effects of α-MSH on behaviour and body coloration, combined with morph-specific regulation of the stress response and the melanocortin system, suggest that the melanocortin system contributes to the polymorphism in behaviour and coloration in A. burtoni.
Data from: Conformity in the collective: differences in hunger affect individual and group behaviour in fish
Animal groups are often composed of individuals that vary according to behavioural, morphological and internal state parameters. Understanding the importance of such individual-level heterogeneity to the establishment and maintenance of coherent group responses is of fundamental interest in collective behaviour. We examined the influence of hunger on the individual and collective behaviour of groups of shoaling fish, x-ray tetras (Pristella maxillaris). Fish were assigned to one of two nutritional states, satiated or hungry, and then allocated to 5 treatments that represented different ratios of satiated to hungry individuals (8 hungry, 8 satiated, 4:4 hungry: satiated, 2:6 hungry: satiated, 6:2 hungry: satiated). Our data show that groups with a greater proportion of hungry fish swam faster and exhibited greater nearest-neighbour distances. Within groups, however, there was no difference in the swimming speeds of hungry versus well-fed fish, suggesting that group members conform and adapt their swimming speed according to the overall composition of the group. We also found significant differences in mean group transfer entropy, suggesting stronger patterns of information flow in groups comprising all, or a majority of, hungry individuals. In contrast, we did not observe differences in polarization, a measure of group coherence, within groups across treatments. Taken together these results demonstrate that the nutritional state of animals within social groups impacts both individual and group behaviour, and that members of heterogenous groups can adapt their behaviour to facilitate coherent collective motion.
Figure S1 in Behaviour of two predator fishes Esox lucius Linnaeus, 1758 and Silurus glanis Linnaeus, 1758 during two successive floods in the French Aisne River
Figure S1. – Cumulative distance and number of recorded movements upstream and downstream versus waterflow between October 2020 and March 2021 for northern pikes.
Figure 7 in Behaviour of two predator fishes Esox lucius Linnaeus, 1758 and Silurus glanis Linnaeus, 1758 during two successive floods in the French Aisne River
Figure 7. – Habitats used during the two floods by male and female northern pikes. One bar represents one pike, and the number of detections during the flood is indicated on top of each bar.
Figure 2 in Behaviour of two predator fishes Esox lucius Linnaeus, 1758 and Silurus glanis Linnaeus, 1758 during two successive floods in the French Aisne River
Figure 2. – Evolution of the waterflow between December 2020 and April 2021 (Photos of the restored Pignicourt spawning area taken before, during and after the floods. The water level rose considerably, flooding the spawning area and the surrounding fields in winter, before dropping again considerably from the end of February. The flow indicated was measured in Berry-auBac).
Figure 6 in Behaviour of two predator fishes Esox lucius Linnaeus, 1758 and Silurus glanis Linnaeus, 1758 during two successive floods in the French Aisne River
Figure 6. – Kilometric points recorded (A) and fixes (B) of the pike no 111 between October 2020 and March 2021.
Fig. 10 in Impact of ecotourism on the fish fauna of Bonito region (Mato Grosso do Sul State, Brazil): ecological, behavioural and physiological measures
Fig. 10. Temporal variation (mean and SEM) of cortisol levels in holding-water Moenkhausia bonita challenged with an intra-peritoneal injection of porcine ACTH. Triangles, darker line = ACTH; squares, lighter line = RINGER (control).
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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.