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694 results for “fish diversity”
Data from: Behavioral diversity and biomechanical determinants of the outcome of a fish predator-prey interaction
<p>Predator-prey interactions are ubiquitous and under strong selection because of the consequences experienced by both predator and prey if they lose the interaction. Biomechanics and behavior play important roles in the outcome of these interactions, but many studies focus on the prey, restrict the range of behaviors considered, and the role of prey boldness in the outcome is not understood. We used high-speed video to test for effects of multiple measures of performance and kinematics of both the predator and prey, and boldness of prey on the outcome of interactions between Pike Cichlids (<em>Crenicichla</em>) and Guppies (<em>Poecilia reticulata</em>). We found high variation in the behaviors employed during the predator-prey interactions, including in suction versus raptorial feeding, strike accuracy, and guppy responsiveness. We also found that predators moving relatively slower and prey moving relatively faster were more successful at consuming the prey and evading the predator, respectively. Prey that reacted farther from the predator were more likely to escape predation, but boldness of the prey did not affect the interaction. Our work suggests that a high level of variation in predator-prey interactions is widespread, even when strike and escape behaviors are stereotyped. We also showed that what both the predator and the prey do during an interaction are important in determining the outcome.</p>
DNA barcoding for the assessment of marine and coastal Fish Diversity from the Coast of Mozambique
<p><span>The ichthyological provinces of Mozambique are understudied hotspots of global fish diversity. In this study, we applied DNA barcoding to identify the composition of the fish fauna from the coast of Mozambique. A total of 143 species belonging to 104 genera, 59 families, and 30 orders were identified. The overall K2P distance of the COI sequences within species ranged from 0.00% to 1.51%, while interspecific distances ranged from 3.64% to 24.49%. Moreover, the study revealed 15 threatened species according to the IUCN Red List of Threatened Species, with elasmobranchs being the most represented group. Additionally, the study also uncovered four new species that were not previously recorded in this geographic area, including <em>Boleophthalmus dussumieri, Maculabatis gerrardi, Hippocampus kelloggi, and Lethrinus miniatus</em>. This study represents the first instance of utilizing molecular references to explore the fish fauna along the Mozambican coast. Our results indicate that DNA barcoding is a dependable technique for the identification and delineation of fish species in the waters of Mozambique. The DNA barcoding library established in this research will be an invaluable asset for advancing the understanding of fish diversity and guiding future conservation initiatives.</span></p>
Patterns of reef fish taxonomic and functional diversity in the Eastern Tropical Pacific
<p class="MsoNormal">A core challenge in ecology is identifying the factors that determine species distribution and functional diversity of species assemblages. Reef fish are the most diverse group of vertebrates, form taxonomically rich and functionally diverse communities and represent a key source of food for humans. We examine regional distribution patterns of reef fish species richness and functional diversity and investigate how these are determined by historical, biogeographic, energetic, and anthropogenic factors. We compiled data from 3,312 underwater visual censuses (UVCs) performed at 122 locations comprising rocky and coral reefs along of the Eastern Tropical Pacific (ETP). We used Generalized Linear Mixed-effects Models (GLMM) implemented in a Bayesian framework to investigate whether distance from quaternary refugia, distance from mainland, shelf area, primary productivity, sea surface temperature, human population gravity and conservation status influence reef fish species richness and functional diversity in the ETP. Species richness and functional richness (FRic) peaked towards the center of the ETP and our null model suggests that FRic followed a spatial pattern than would be predicted by species richness. Additionally, functional evenness (FEve) was highest at higher latitudes whereas functional dispersion (FDis) was homogeneous throughout the ETP. Species richness was negatively influenced by shelf area and distance from the mainland but positively influenced by sea surface temperature and conservation status. FEve was influenced by human population gravity and FDis by shelf area, respectively. Reef fish<strong> </strong>species richness and functional diversity in the ETP exhibited a strong division within the region mainly mediated by sea surface temperature and human population gravity. Our results also suggest that dominant species in large areas share more common traits than dominant species in small areas. This study provides previously unknown regional patterns of reef fish functional diversity and new insights into how historical, biogeographic, energetic, and anthropogenic factors influence complementary biodiversity facets.</p>
Data and code for: Trapped DNA fragments in marine sponge specimens unveil north Atlantic deep-sea fish diversity
<p>Sponges pump water to filter feed and for diffusive oxygen uptake. In doing so, trace DNA fragments from a multitude of organisms living around them are trapped in their tissues. Here we show that the environmental DNA retrieved from archived marine sponge specimens can reconstruct the fish communities at the place of sampling and discriminate North Atlantic assemblages according to biogeographic region (from Western Greenland to Svalbard), depth habitat (80–1600 m), and even the level of protection in place. Given the cost associated with ocean biodiversity surveys, we argue that targeted and opportunistic sponge samples – as well as the specimens already stored in museums and other research collections – represent an invaluable trove of biodiversity information that can significantly extend the reach of ocean monitoring.</p>
Figure 1 in A review of amphidromous freshwater fishes of the Chocó biogeographical region (Colombia and Ecuador): diversity, ecology, fisheries and conservation
Figure 1. – Map of the Chocó Biogeographical Region in the Pacific of Colombia and Ecuador.
Fish Consumption and Dietary Diversity in Timor-Leste
ClinicalTrials.gov study NCT04729829. IPD Sharing: NO. Countries: 1. Publications: 1.
Data from: Refining sampling efforts for fish diversity assessment in subtropical urban estuarine and oceanic waters using environmental DNA with multiple primers
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Data from: Behavioral diversity and biomechanical determinants of the outcome of a fish predator-prey interaction
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Balancing selection maintains intraspecific diversity in a deep-sea fish
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Data for: Stronger niche than dispersal effects on α- and β-diversity of stream algae, insects, and fish across latitudes in the US
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Data from: Navigating the scales of diversity in subtropical and coastal fish assemblages ascertained by eDNA and visual surveys
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Patterns of reef fish taxonomic and functional diversity in the Eastern Tropical Pacific
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Influence of past and current factors on the beta diversity of coastal lagoon fish communities in South America
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Geographic, seasonal and ontogenetic variations of δ15N and δ13C of Japanese sardine explained by baseline variations and diverse fish movements
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Speciation rate and the diversity of fishes in freshwaters and the oceans
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Data from: Genetic structure and diversity of the blueface darter Etheostoma cyanoprosopum, a microendemic freshwater fish in the southeastern United States
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Fromsight to sequence: Underwater visual census vs eDNA metabarcoding for the monitoring of taxonomic and functional fish diversity
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Data from: Phylogenomics of Characidae, a hyper-diverse Neotropical freshwater fish lineage, with a phylogenetic classification including four families (Teleostei: Characiformes)
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Data from: Explaining the ocean’s richest biodiversity hotspot and global patterns of fish diversity
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Quantitative monitoring of diverse fish communities on a large scale combining eDNA metabarcoding and qPCR
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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.