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16 results for “marlin”
Figure 6 in The anatomy and attachment mechanism of the haptor of a Capsala sp. (Platyhelminthes: Monogenea: Capsalidae) on the blue marlin, Makaira nigricans (Istiophoridae)
Figure 6. Diagrammatic view of a marlin, showing scanning electron micrographs of Makaira nigricans at four different locations ventrally, where a Capsala sp. was observed. (a) Beneath the head; (b) between the pectoral fins; (c) region lateral to the first anal fin; (d) region lateral to the second anal fin.
Figure 5 in The anatomy and attachment mechanism of the haptor of a Capsala sp. (Platyhelminthes: Monogenea: Capsalidae) on the blue marlin, Makaira nigricans (Istiophoridae)
Figure 5. Diagrammatic view of a marlin, showing scanning electron micrographs of the dorsal skin of Makaira nigricans at two different locations, where a Capsala sp. was observed. (a) The bill and on top of the head; (b) region lateral to the dorsal and caudal fins.
Figure 3 in The anatomy and attachment mechanism of the haptor of a Capsala sp. (Platyhelminthes: Monogenea: Capsalidae) on the blue marlin, Makaira nigricans (Istiophoridae)
Figure 3. The attachment to the host surface by a Capsala sp. (a) Longitudinal section of an individual attached to the surface of Makaira nigricans, showing the location of the haptor and anterior attachment organs; (b, c) scanning electron micrographs showing the outlines left by (b) the anterior attachment organs, and (c) the haptor showing the impression of the septa and marginal valve.
Figure 4 in The anatomy and attachment mechanism of the haptor of a Capsala sp. (Platyhelminthes: Monogenea: Capsalidae) on the blue marlin, Makaira nigricans (Istiophoridae)
Figure 4. Diagrammatic representation of the balanced forces acting on the body of Capsala sp. while it is attached to the outer surface of Makaira nigricans (arrows indicate the direction in which the force is acting).
Figure 2 in The anatomy and attachment mechanism of the haptor of a Capsala sp. (Platyhelminthes: Monogenea: Capsalidae) on the blue marlin, Makaira nigricans (Istiophoridae)
Figure 2. The haptoral anatomy of a Capsala sp. (a) Differential interference contrast photograph of the posterior haptor; (b) schematic representation of the anatomy of the haptor—in the same orientation as indicated in (a).
Atlantic Ocean marlin fishery and climatic oscillations dataset
<p>Climatic oscillations affect fish population dynamics, ecological processes, and fishing operations in maritime habitats. This study examined how climatic oscillations affect catch rates for striped, blue, and silver marlins in the Atlantic Ocean. These oscillations are regarded as the primary factor influencing the abundance and accessibility of specific resources utilized by fishers. Logbook data were obtained from Taiwanese large-scale fishing vessels for climatic oscillations during the period 2005–2016. The results indicated that the effect of the Subtropical Indian Ocean Dipole on marlin catch rates did not have a lag, whereas those of the North Atlantic Oscillation, Atlantic Multidecadal Oscillation, Pacific Decadal Oscillation, and Indian Ocean Dipole had various lags. Pearson's correlation analysis was conducted to examine the correlations between atmospheric oscillation indices and marlin catch rates, and wavelet analysis was employed to describe the influences of the most relevant lags. The results indicated that annual atmospheric fluctuations and their lags affected the abundance and catchability of striped, blue, and silver marlins in the study region. This, in turn, may affect the presence of these species in the market and lead to fluctuations in their prices in accordance with supply and demand. Overall, understanding the effects of climatic oscillations on fish species are essential for policymakers and coastal communities seeking to manage marine resources, predict changes in marine ecosystems, and establish appropriate methods for controlling the effects of climate variability.</p>
MarLIN
The Marine Life Information Network (MarLIN) provides information on the biology of the marine species and habitats of the North East Atlantic. The information is designed to enable conservation and protection of marine life, while raising public awareness of the biodiversity of our seas. MarLIN also hosts information for schools and young adults and runs educational events regionally. MarLIN is hosted by the Marine Biological Association of the UK (www.mba.ac.uk), and runs the UK data archive centre for marine biodiversity data, DASSH (www.dassh.ac.uk). <p></p>https://www.marlin.ac.uk/
Genomic data resolve long-standing uncertainty by distinguishing white marlin (Kajikia albida) and striped marlin (K. audax) as separate species
<p>Large pelagic fishes are often broadly and continuously distributed and capable of long-distance movements. These factors can promote gene flow that makes it difficult to disentangle intra- vs. inter-specific levels of genetic differentiation. Here, we assess the relationship of two istiophorid billfishes, white marlin (<em>Kajikia</em> <em>albida</em>) and striped marlin (<em>K</em>. <em>audax</em>), presently considered sister species inhabiting separate ocean basins. Previous studies report levels of genetic differentiation between white marlin and striped marlin that are <a>smaller</a> than those observed among populations of other istiophorid species. To determine whether white marlin and striped marlin comprise separate species or populations of a single globally distributed species, we surveyed 2<a>520</a> single nucleotide polymorphisms (SNPs) in 62 white marlin and 242 striped marlin sampled across the Atlantic, Pacific, and Indian oceans. Multivariate analyses resolved white marlin and striped marlin as distinct groups, and a species tree composed of separate lineages was strongly supported over a single lineage tree. Genetic differentiation between white marlin and striped marlin (<em>F</em><sub>ST</sub> = 0.5384) was also substantially larger than between populations of striped marlin (<em>F</em><sub>ST</sub> = 0.0192–0.0840), and we identified SNPs that allow unambiguous species identification. Our findings indicate that white marlin and striped marlin comprise separate species, which we estimate diverged at approximately 2.38 Mya.</p>
Genomic data resolve long-standing uncertainty by distinguishing white marlin (Kajikia albida) and striped marlin (K. audax) as separate species
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Atlantic Ocean marlin fishery and climatic oscillations dataset
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Data from: Genome-wide SNPs resolve spatiotemporal patterns of connectivity within striped marlin (Kajikia audax), a broadly distributed and highly migratory pelagic species
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Data from: Environmental influences and ontogenetic differences in vertical habitat use of black marlin (Istiompax indica) in the southwestern Pacific
The black marlin (Istiompax indica) is a highly migratory billfish that occupies waters throughout the tropical and subtropical Indo-Pacific. To characterize the vertical habitat use of I. indica, we examined the temperature-depth profiles collected using 102 pop-up satellite archival tags deployed off the east coast of Australia. Modelling of environmental variables revealed location, sea-surface height deviation, mixed layer depth and dissolved oxygen to all be significant predictors of vertical habitat use. Distinct differences in diel movements were observed between the size classes, with larger size classes of marlin (greater than 50 kg) undertaking predictable bounce-diving activity during daylight hours, while diving behaviour of the smallest size class occurred randomly during both day and night. Overall, larger size classes of I. indica were found to use an increased thermal range and spend more time in waters below 150 m than fish of smaller size classes. The differences in the diving behaviour among size classes were suggested to reflect ontogenetic differences in foraging behaviour or physiology. The findings of this study demonstrate, for the first time to our knowledge, ontogenetic differences in vertical habitat in a species of billfish, and further the understanding of pelagic fish ecophysiology in the presence of global environmental change.
Figure 1 in First record of the marlin sucker Remora osteochir (Cuvier, 1829) (Carangiformes, Echeneidae) in the Adriatic Sea
Figure 1. – Two specimens of Remora osteochir from eastern Adriatic Sea. Detail of the head with sucking disc of a specimen (lower photo). Upper photo: Branko Dragičević, lower photo: Rino Stanić.
Footage of a school of Pacific sardines evading striped marlin attacks
<p>This repository contains 14 videos of attacks by striped marlin on a school of Pacific sardines, filmed in November 2021 using unmanned aerial vehicles (DJI, Phantom 4 Pro V2.0) flying at 20 m altitude, 10-30 km offshore Baja California, Mexico.</p>
Figure 1 in The anatomy and attachment mechanism of the haptor of a Capsala sp. (Platyhelminthes: Monogenea: Capsalidae) on the blue marlin, Makaira nigricans (Istiophoridae)
Figure 1. Scanning electron micrographs of the attachment structures of a Capsala sp. from the skin of Makaira nigricans. (a) Ventral surface showing the papillate body surface and the location of the posterior haptor and anterior attachment organs; (b) the posterior haptor showing details of the loculi; (c) the haptoral papillae; (d) the haptoral marginal valve; (e) lateral view of an accessory sclerite showing the tegumental sheath; (f) digested accessory sclerite indicating proximal notch; (g) longitudinal terminal surface ridging on the accessory sclerite.
Data from: Environmental influences and ontogenetic differences in vertical habitat use of black marlin (Istiompax indica) in the southwestern Pacific
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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.