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1,636 results for “marine species”
Figure 2 in New species of Acanthochondria Oakley, 1930 and Chondracanthus Delaroche, 1811 (Copepoda: Cyclopoida: Chondracanthidae) parasitizing marine fishes from Indian waters
Figure 2. Acanthochondria krishnai sp. n., holotype, female from Uranoscopus guttatus Cuvier. A. Dorsal view. B. Ventral view. C, D. Cephalon, dorsal and ventral views. E. Antennule. F. Antenna.
Figure 1 in New species of Acanthochondria Oakley, 1930 and Chondracanthus Delaroche, 1811 (Copepoda: Cyclopoida: Chondracanthidae) parasitizing marine fishes from Indian waters
Figure 1. Acanthochondria krishnai sp. n., female from Uranoscopus guttatus Cuvier. A, B. Dorsal view. C. Ventral view.
Figure 3 in New species of Acanthochondria Oakley, 1930 and Chondracanthus Delaroche, 1811 (Copepoda: Cyclopoida: Chondracanthidae) parasitizing marine fishes from Indian waters
Figure 3. Acanthochondria krishnai sp. n., non-type female from Uranoscopus guttatus Cuvier. A. Cephalon ventral view showing cephalic appendages. B. Antennule (arrow). C. Antennules (arrows). D. Cephalic appendages. E. Leg 1. F. Leg 2. G–J. Genitoabdomen. G. Lateral view with rami. H. Ventral view with rami. I. Dorsal view with male. J. With rami. (a1- antennule, a2- antenna, mxp- maxilliped, max- maxilla; L1- leg 1, L2- leg 2, m- male, r- rami).
Figure 14 in New species of Acanthochondria Oakley, 1930 and Chondracanthus Delaroche, 1811 (Copepoda: Cyclopoida: Chondracanthidae) parasitizing marine fishes from Indian waters
Figure 14. Chondracanthus kabatai sp. n., paratype male from Zenopsis conchifer Lowe. A. Habitus, lateral view. B. Antennule. C. Antenna. D. Mandible. E. Maxillule. F. Maxilla. G. Maxilliped. H. Leg 1. I. Leg 2. J. Lateral view of genito-abdomen. K. Rami.
Figure 8 in New species of Acanthochondria Oakley, 1930 and Chondracanthus Delaroche, 1811 (Copepoda: Cyclopoida: Chondracanthidae) parasitizing marine fishes from Indian waters
Figure 8. Chondracanthus kabatai sp. n. from Zenopsis conchifer Lowe. A–C. Holotype, female, dorsal, ventral and lateral views. D–F. Paratype, female, dorsal, ventral and dorso-lateral views.
Figure 3 in A review of molecular genetic markers and analytical approaches that have been used for delimiting marine mammal subspecies and species
Figure 3. Published values of percent divergence between cetacean subspecies (black bars), species (white bars), and taxa of uncertain taxonomic status (gray bars). Values are based on mtDNA control region sequence data. Not all values represent net sequence divergence. See Table 1 for list of papers corresponding to each value. Since completing this work, Sousa species have been supported ((Mendez et al. 2013) and Inia subspecies changed.
Figure 1 in A review of molecular genetic markers and analytical approaches that have been used for delimiting marine mammal subspecies and species
Figure 1. Sample sizes used in publications of molecular genetic studies of marine mammals at different taxonomic levels. Graphs present the proportion of studies at each taxonomic level that fall into each sample size category. (A) minimum total sample size per focal taxon; (B) maximum sample size per single sampling locality. Papers were categorized as examining taxonomic questions at: species = subspecies/species boundary; subspecies = population/subspecies boundary; uncertain = taxonomic boundary uncertain (see text).
Figure 2 in A review of molecular genetic markers and analytical approaches that have been used for delimiting marine mammal subspecies and species
Figure 2. Types of molecular genetic data used in published studies examining questions at the species-level, subspecies-level, or undefined taxonomic level for marine mammals. Note that studies may have used more than one data type. Mitochondrial DNA sequence data (MtDNASeq), nuclear DNA sequence data (NuSeq), microsatellites (Msats), morphological data (Morph).
Fig. 3 in Oncholaimus langhovdensis sp. nov. (Nematoda: Enoplea: Oncholaimida), a New Species of Free-living Marine Nematode from Langhovde, Dronning Maud Land, East Antarctica
Fig. 3. Oncholaimus langhovdensis sp. nov., SEM images. A female ICHUM 5322 (A, B, D, F) and a male ICHUM 5321 (C, E). A, head, anterior view; B, head, lateral view; C, male tail, lateral view; D, female tail, lateral view; E, male cloacal region, ventral view; F, vulva, ventrolateral view. Scale bars: A, B, E, F, 10 µm; C, D, 50 µm.
Fig. 2 in Oncholaimus langhovdensis sp. nov. (Nematoda: Enoplea: Oncholaimida), a New Species of Free-living Marine Nematode from Langhovde, Dronning Maud Land, East Antarctica
Fig. 2. Oncholaimus langhovdensis sp. nov. Male ICHUM 5311 (holotype; A, B), females ICHUM 5316 (C, D) and 5317 (E). A, testes; B, left spicule, lateral view; C, female posterior region; D, uvette and osmosium, right lateral view; E, uvette and osmosium, ventral view. Abbreviations: a.t., anterior testis; d.e., ductus entericus; d.u., ductus uterinus; e., egg; i., intestine; os., osmosium; ov., ovary; p.t., posterior testis; ut., uterus; uv., uvette; v., vulva; v.d., vas deferens. Scale bars: A, C, 500 µm; B, 10 µm; D, E, 50 µm.
Fig. 6 in Two New Species of Free-living Marine Nematodes (Nematoda: Axonolaimidae and Tripyloididae) from the Coast of Antarctica
Fig. 6. Parabathylaimus jare sp. nov. A, malformed spicule and gubernaculum (ICHUM 5376); B, spicule and gubernaculum (ICHUM 5377); C, female body (ICHUM 5493); D, female head (ICHUM 5493); E, female posterior region (ICHUM 5493); F, vaginal region (ICHUM 5493). Scale bars: A, B, 10 µm; C, 500 µm; D, 20 µm; E, F, 100 µm.
Fig. 2 in Two New Species of Free-living Marine Nematodes (Nematoda: Axonolaimidae and Tripyloididae) from the Coast of Antarctica
Fig. 2. Odontophora odontophoroides sp. nov. A, B, E–J, differential interference contrast photomicrographs; C, D, SEM images. A, inner view of head (holotype); B, amphid and odontia (holotype); C, mouth opening with odontia (non-type male); D, amphidial aperture (nontype male); E, distal end of spicule with spine-like structures (holotype); F, ventral view of left spicule (white arrowheads) and gubernacula (black arrowheads) (dissected non-type); G, gubernaculum (holotype); H, precloacal pore (holotype); I, precloacal supplement (black arrowhead) (holotype); J, contents of testis (holotype); K, sperms in seminal vesicle (holotype). Scale bars: A–G, J, K, 10 µm; H, I, 5 µm.
Fig. 4 in Two New Species of Free-living Marine Nematodes (Nematoda: Axonolaimidae and Tripyloididae) from the Coast of Antarctica
Fig. 4. Parabathylaimus jare sp. nov. A, male body (holotype); B, male anterior region (holotype); C, male head, dorso-lateral view (holotype); D, male head, lateral view (ICHUM 5377); E, male posterior region (holotype); F, male posterior region (ICHUM 5377); G, spicule and gubernaculum (holotype). Abbreviations: a.t., anterior testis; s.v., seminal vesicle; v.d., vas deferens. Scale bars: A, 500 µm; B, E, F, 100 µm; C, D, 20 µm; G, 10 µm.
Fig. 1 in Two New Species of Free-living Marine Nematodes (Nematoda: Axonolaimidae and Tripyloididae) from the Coast of Antarctica
Fig. 1. Odontophora odontophoroides sp. nov. A, male body (holotype); B, male anterior region (holotype); C, male head with closed mouth (holotype); D, male posterior region (holotype); E, male genital apparatus (holotype); F, G, spicule and gubernaculum (ICHUM 5486 and 5488, respectively). Abbreviations: a.t., anterior testis; e.g., ejaculatory glands; p.p., precloacal pore; p.s., precloacal supplement; p.t., posterior testis; s.v., seminal vesicle; v.d., vas deferens. Scale bars: A, 500 µm; B, D, 100 µm; C, 20 µm; E–G, 10 µm.
Fig. 3 in A New Species of Free-living Marine Nematode, Proplatycoma tsukubae sp. nov. (Enoplida: Leptosomatidae), from Japan
Fig. 3. Proplatycoma tsukubae sp. nov. A, male reproductive system (holotype); B, male reproductive system (paratype); C, male posterior region (holotype); D, accessory structure of spicule (holotype). Abbreviations: a.p.s., anterior precloacal ventromedian supplement; p.p.s., posterior precloacal ventromedian supplement; p.s., postcloacal ventromedian supplement.
Fig. 1 in A New Species of Free-living Marine Nematode, Proplatycoma tsukubae sp. nov. (Enoplida: Leptosomatidae), from Japan
Fig. 1. Proplatycoma tsukubae sp. nov. A, male body (holotype); B, male body (paratype); C, male head (holotype); D, male head (paratype); E, male anterior region (holotype). Abbreviations: a.t., anterior testis; c.c., cephalic capsule; m.l., microlabium; p.t., posterior testis.
Supporting Information for Article "MarINvaders: A web toolkit of marine species for use in environmental assessments"
<p>An Excel file with the overview of number of species per ecoregion and classes of alien species is available online. The code for querying and harmonizing the databases was published as a separate package (see Lonka et al. (2021))and available with an open source (GPL v3) license at <a href="https://gitlab.com/marinvaders/marinvaders">https://gitlab.com/marinvaders/marinvaders</a>.</p>
Environmental DNA reveals fine-scale habitat associations for sedentary and resident marine species across a coastal mosaic of soft and hard-bottom habitats
<p>Accurate knowledge on spatiotemporal distributions of marine species and their association with surrounding habitats is crucial to inform adaptive management actions responding to coastal degradation across the globe. Here, we investigate the potential use of environmental DNA (eDNA) to detect species-habitat associations in a patchy coastal area of the Baltic Sea. We directly compare species-specific qPCR analysis of eDNA with baited remote underwater video systems (BRUVS), two non-invasive methods widely used to monitor marine habitats. Four focal species (cod Gadus morhua, flounder Platichthys flesus, plaice Pleuronectes platessa and goldsinny wrasse Ctenolabrus rupestris) were selected based on contrasting habitat associations (reef- vs. sand-associated species), as well as differential levels of mobility and residency, to investigate whether these factors affected the detection of species-habitat associations from eDNA. To this end, a species-specific qPCR assay for goldsinny wrasse is developed and made available herein. In addition, potential correlations between eDNA signals and abundance counts (MaxN) from videos were assessed. Results from Bayesian multi-level models revealed strong evidence for a sand association for sedentary flounder (98% posterior probability) and a reef association for highly resident wrasse (99% posterior probability) using eDNA, in agreement with BRUVS. However, contrary to BRUVS, eDNA sampling did not detect habitat associations for cod or plaice. We found a positive correlation between eDNA detection and MaxN for wrasse (posterior probability 95%), but not for the remaining species and explanatory power of all relationships was generally limited. Our results indicate that eDNA sampling can detect species-habitat associations on a fine spatial scale, yet this ability likely depends on the mobility and residency of the target organism, with associations for sedentary or resident species most likely to be detected. Combined sampling with conventional non-invasive methods is advised to improve detection of habitat associations for mobile and transient species, or for species with low eDNA concentrations. </p>
Fig. 9. Gonopods. A–D in Marine crabs new to Singapore, with a description of a new species of intertidal xanthid crab of the genus Macromedaeus Ward, 1942 (Crustacea: Decapoda: Brachyura)
Fig. 9. Gonopods. A–D, Macromedaeus adelus, new species, holotype, male, 17.6 × 10.9 mm (ZRC 2017.0465), Punggol End, Singapore; E–G, Macromedaeus distinguendus (De Haan, 1835), male, 17.7 × 11.9 mm (ZRC 1999.0066), Amakusa Matsushima, Japan. A, E, left G1, sternal view; B, F, distal tip of left G1, sternal view; C, G, distal tip of left G1, pleonal view; D, left G2, pleonal view. Scale bars: A–G = 0.5 mm.
Fig. 8 in Marine crabs new to Singapore, with a description of a new species of intertidal xanthid crab of the genus Macromedaeus Ward, 1942 (Crustacea: Decapoda: Brachyura)
Fig. 8. Live colouration. Macromedaeus adelus, new species (ZRC 2017.0466), West Coast Park, Singapore. A, paratype, male, 16.0 × 10.3 mm; B, paratype, male, 11.8 × 7.7 mm. Scale bar: A, B = 5.0 mm.
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.