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288 results for “marine coasts”
Maps shows the survey localities along Gujarat coast in Marine bryozoans of Gujarat and Maharashtra
Maps shows the survey localities along Gujarat coast
Distinct latitudinal community patterns of Arctic marine vertebrates along the East Greenlandic coast detected by environmental DNA
<p><strong><span>Aim: </span></strong><span>Greenland is one of the places on Earth where the effects of climate change are most evident. The retreat of sea ice has made East Greenland more accessible for longer periods during the year. East Greenland fjords have been notoriously difficult to study due to their remoteness, dense sea ice conditions and lack of infrastructure. As a result, biological monitoring across latitudinal gradients is scarce in East Greenland and relies on sporadic research cruises and trawl data from commercial vessels. We here aim to investigate the transition in fish and marine mammal communities from South to Northeast Greenland using environmental DNA (eDNA).</span></p> <p><strong><span>Location: </span></strong><span>South to Northeast Greenland.</span></p> <p><strong><span>Methods: </span></strong><span>We investigated the transition in fish and marine mammal communities from South to Northeast Greenland using eDNA metabarcoding of seawater samples. We included both surface and mesopelagic samples, collected over approximately 2400 km waterway distance, by sampling from Cape Farewell to Ella Island in August 2021.</span></p> <p><strong><span>Results:</span></strong><span> We demonstrate a clear transition in biological communities from south to northeast, with detected fish and mammal species matching known distributions. Samples from the southern areas were dominated by capelin (<em>Mallotus villotus</em>) and redfish (<em>Sebastes</em>), whereas northeastern samples were dominated by polar cod (<em>Boreogadus saida</em>), sculpins (<em>Myoxocephalus</em>) and ringed seal (<em>Pusa hispida</em>). We provide newly generated 12S rRNA barcodes from 72 fish species, bringing the public DNA database closer to full taxonomic coverage for Greenlandic fish species for this locus.</span></p> <p><strong><span>Main conclusions: </span></strong><span>Our results demonstrate that eDNA sampling can detect latitudinal shifts in marine biological communities of the Arctic region, which can supplement traditional fish surveys in understanding species distributions and community compositions of marine vertebrates. Importantly, sampling of eDNA can be a feasible approach for detecting northward range expansions in remote areas as climate change progresses.</span></p>
Data for study on the permeability of biogeographic barriers to marine species on the east and west coasts of North America
<p><strong>Aim</strong>: We assess the role of contemporary oceanography and species traits in shaping observed patterns of biogeography over broad spatial scales.</p> <p><strong>Location</strong>: Our study domain covers the east and west coasts of North America, from 30° to 73° on the east coast and 33° to 73° on the west coast.</p> <p><strong>Time Period</strong>: Hydrodynamic models use climatological fields from 1990 to 2015 on the east coast, and 1993 to 2018 on the west coast.</p> <p><strong>Major Taxa Studied:</strong> Model simulations represent larval dispersal for generalized benthic invertebrate species distributed in the subtidal zone from 10 m to 100 m depth, with planktonic larval durations ranging from 21–60 days.</p> <p><strong>Methods</strong>: We conducted a literature review to identify major biogeographic barriers along the east and west coasts of North America, and then assessed the permeability of these barriers to larval dispersal using Lagrangian Particle Tracking. We ran a series of simulations in which we varied the suitable habitat distribution, planktonic larval duration, and spawning seasonality of simulated larvae (i.e. particles) to assess the role of species traits on biogeography.</p> <p><strong>Results</strong>: Our results showed a strong alignment of observed biogeographic barriers with larval dispersal patterns, with high variation in barrier permeability depending on the traits of the species considered. The location of suitable habitat and the season during which particle release occurred were the biological traits that drove much of the variation in barrier permeability among simulations on both coasts.</p> <p><strong>Main Conclusions</strong>: Our results indicate an important role of contemporary oceanographic and geographic features in determining the biogeography of species whose primary dispersal is during larval stages, suggesting that climate change is likely to alter patterns of species biogeography. Our results also demonstrate that species traits play a strong role in determining the location and strength of biogeographic barriers.</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>
Strandings of marine mammals, sea turtles and seabirds along central Santa Catarina coast, Brazil, from 2015 to 2018.
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Strandings of marine mammals, sea turtles and seabirds along the northern Santa Catarina coast, Brazil, from 2015 to 2018.
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Strandings of marine mammals, sea turtles and seabirds along the southern São Paulo coast, Brazil, from 2015 to 2018.
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Strandings of marine mammals, sea turtles and seabirds along the central-north São Paulo coast, Brazil, from 2015 to 2018.
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Strandings of marine mammals, sea turtles and seabirds along the Paraná coast, Brazil, from 2015 to 2018.
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Strandings of marine mammals, sea turtles and seabirds along the Central-south Santa Catarina coast, Brazil, from 2015 to 2018.
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Data for study on the permeability of biogeographic barriers to marine species on the east and west coasts of North America
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DNA barcoding for the assessment of marine and coastal Fish Diversity from the Coast of Mozambique
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Distinct latitudinal community patterns of Arctic marine vertebrates along the East Greenlandic coast detected by environmental DNA
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Strandings of marine mammals, sea turtles and seabirds along the central-north Santa Catarina coast, Brazil, from 2015 to 2018
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Strandings of marine mammals, sea turtles and seabirds along the central-south coast of São Paulo, Brazil, from 2015 to 2018.
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Strandings of marine mammals, sea turtles and seabirds along the northern São Paulo coast, Brazil, from 2015 to 2018.
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FIGURE 4 in A new marine intertidal chironomid from the Brazilian coast (Diptera: Chironomidae: Telmatogetoninae)
FIGURE 4. Telmatogeton yamaguchiae sp. n., larva. A. Frontal apotome and dorsal sclerites. B. Antenna. C. Premandible. D. Mandible. E. Mentum.
FIGURE 3 in A new marine intertidal chironomid from the Brazilian coast (Diptera: Chironomidae: Telmatogetoninae)
FIGURE 3. Telmatogeton yamaguchiae sp. n., pupa. A. Pupa inside cocoon covered with grains of sand. B. Thorax and thoracic horn, lateral view. C. Plastron plate with rosette. D. Frontal apotome. E. Terminal disc.
FIGURE 2 in A new marine intertidal chironomid from the Brazilian coast (Diptera: Chironomidae: Telmatogetoninae)
FIGURE 2. Telmatogeton yamaguchiae sp. n., female. A. Genitalia in dorsal view, TIX and detail of notum (No), spermathecal ducts (Spt), coxosternapodeme (Csa), gonocoxite IX (Gc IX), gonostylus (Gs) and cercus (Ce). B. Genitalia in ventral view, detail of gonapophysis VIII (Gp VIII).
FIGURE 1 in A new marine intertidal chironomid from the Brazilian coast (Diptera: Chironomidae: Telmatogetoninae)
FIGURE 1. Telmatogeton yamaguchiae sp. n., male. A. Habitus of imago, lateral view. B. Head, frontal view. C. Antenna. D. Wing. E. Hypopygium in dorsal view, with tergite IX removed. F. Aedeagal complex, details of internal apodemes (Ap), aedeagal lobes (AL), phallapodeme (Pha) and transverse sternapodeme (Tsa).
ScienceDex guides
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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.