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90 results for “Sea lions”
Pop-up satellite archival tagging data of Atlantic bluefin tuna in the Gulf of Lions, Northwestern Mediterranean Sea
<p>24 Atlantic bluefin tuna (Thunnus thynnus) individuals (117–158 cm fork length) were tagged with pop-up archival tags in the Gulf of Lion, NW-Mediterranean Sea between 2015 and 2016.</p> <p><strong>Tag programming and data</strong></p> <p>The tags applied (miniPATs by Wildlife Computers, https://wildlifecomputers.com) can record depth and temperature time series (denoted hereafter as DepthTS and TempTS, respectively) at a temporal resolution of 3–5 s (depending on the predefined deployment duration) and a vertical resolution of 0.5 m. Based on these data, the tag calculates and stores additional data products such as PAT-style Depth–Temperature profiles (PDT), time at depth data, and time at temperature. After pop-up, the tags transmit user-defined data products and subsets from the recorded data sets. All our tags were configured to transmit the following data products: daily light curves, DepthTS, and PDT. In order to maximize data coverage of the transmitted datasets, we decreased the temporal resolution of the DepthTS and PDT data after the first tagging campaign in 2015 from 150 to 600 s and 6 to 24 h, respectively. For both years, deployment durations were set to 150 and 90 d during spring (April–May) and summer (August–September), respectively. A description of the electronic tagging procedure can be found in <a href="https://doi.org/10.1093/icesjms/fsaa083">Bauer et al. (2020)</a>.</p> <p>Seven tags were physically recovered, providing the complete archived time series data at a resolution of 3–5 s. Nineteen tags provided more than 7 d of complete DepthTS data (i.e. without transmission gaps). Three tags from 2016 had deployment durations of <1 week (#15P0983, #15P0985, and #15P0986) because of hardware failure.</p> <p>Provided files contain raw tag data (transmitted and recovered datasets) from the Wildlife Computers Data Portal as well as related GPE3 model runs (geolocation estimates).</p> <p>We thank the crews of the Cyngali and Roussillon Fishing recreational fishing vessels for their cooperation during the tagging cruises. This tagging study was part of the BLUEMED project and funded by the French National Research Agency (ANR; Project-ID ANR-14-ACHN-0002).</p> <p> </p>
Artificial reefs geographical location matters more than shape, age and depth for sessile invertebrate colonization in the Gulf of Lion (NorthWestern Mediterranean Sea)
<p>Artificial reefs (ARs) have been used to support fishing activities. Sessile invertebrates are essential components of trophic networks within ARs, supporting fish productivity. However, colonization by sessile invertebrates is possible only after effective larval dispersal from source populations, usually in natural habitat. While most studies focused on short term colonization by pioneer species, we propose to test the relevance of geographic location, shape, age and depth of immersion on the ARs long term colonization by species found in natural stable communities in the Gulf of Lion. We recorded the presence of five sessile invertebrates species, with contrasting life history traits and regional distribution in the natural rocky habitat, on ARs with different shapes deployed during two immersion time periods (1985 and the 2000s) and in two depth ranges (<20m and >20m). At the local level (~5kms), neither shape, depth nor immersion duration differentiated ARs assemblages. At the regional scale (>30kms), colonization patterns differed between species, resulting in diverse assemblages. This study highlights the primacy of geographical positioning over shape, immersion duration and depth in ARs colonization, suggesting it should be accounted for in maritime spatial planning.</p>
Fig. 5 in Detection and characterization of diverse coccidian protozoa shed by California sea lions
Fig. 5. Indirect fluorescence antibody test of California sea lion sporulated oocyst cultures. Zoites derived from cultivated oocysts from animal CSL10089 (A), CSL10092 (B), and CSL10100 (C) were tested using serum from a Sarcocystis neurona-infected horse. Image D shows reactivity of serum from the S. neurona-infected horse to S. neurona culture isolate snUCD-1. Image E shows a lack of seroreactivity of negative control serum from a S. neurona-negative horse to zoite culture from CSL10089. Scale bars are 15 Mm.
Fig. 3 in Detection and characterization of diverse coccidian protozoa shed by California sea lions
Fig. 3. Three California sea lion haul-out sites (red circles) on the central California coast where fecal samples were collected from free-ranging animals. Field sample identifiers for test-positive samples are given (Ãno-, PL- and WR-) at each location. Coccidian parasite genotypes and species amplified in sample DNA are indicated in parentheses: A, Coccidia A; B, Coccidia B; Sn, Sarcocystis neurona-like; unchar, uncharacterized species. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.).
Fig. 3 in Non-invasive detection of Orthohalarachne attenuata (Banks, 1910) and Orthohalarachne diminuata (Doetschman, 1944) (Acari: Halarachnidae) in free-ranging synanthropic South American sea lions Otaria flavescens (Shaw, 1800)
Fig. 3. Non-invasive diagnostic techniques for the detection of Orthohalarachne spp. (A) Sampling of sneezed mucus droplets and mucous nasal discharges from substrates of resting places. (B) Metal clothes hanger bent to form a square frame, covered with clingfilm and mounted on a telescopic rod and (C) sterile petri dishes mounted on a telescopic rod to directly collect sputum samples from the animals.
Fig. 1 in Non-invasive detection of Orthohalarachne attenuata (Banks, 1910) and Orthohalarachne diminuata (Doetschman, 1944) (Acari: Halarachnidae) in free-ranging synanthropic South American sea lions Otaria flavescens (Shaw, 1800)
Fig. 1. Sampling area of Orthohalarachne spp. of South American sea lions in Valdivia, Chile. The exact sampling location is shown in the section (upper-left) as a red-framed black star. Map created with QGIS (https://qgis.org/en/site/) and map data used from OpenStreetMap (openstreetmap.org/copyright). (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)
Fig. 5 in Non-invasive detection of Orthohalarachne attenuata (Banks, 1910) and Orthohalarachne diminuata (Doetschman, 1944) (Acari: Halarachnidae) in free-ranging synanthropic South American sea lions Otaria flavescens (Shaw, 1800)
Fig. 5. Haplotype (TCS) networks of Orthohalarachne diminuata and Orthohalarachne attenuata based on 16S rDNA sequences. (A) Network analysis based on countries of origin, (B) network analysis based on the pinniped host species (CSL=California sea lion, GFS = Guadalupe fur seal, NFS=Northern fur seal, SAS=South American sea lion). For better visualization a combined network analysis of Or. attenuata and Or. diminuata sequences is shown, however, the calculated distance (48 mutations) between species was clipped. Or. attenuata haplotypes are encircled in black boxes with dashed lines, whereas Or. diminuata haplotypes are encircled in light grey boxes with dashed lines based on estimated MOTUs by ABGD.
Fig. 2 in Non-invasive detection of Orthohalarachne attenuata (Banks, 1910) and Orthohalarachne diminuata (Doetschman, 1944) (Acari: Halarachnidae) in free-ranging synanthropic South American sea lions Otaria flavescens (Shaw, 1800)
Fig. 2. Nasal discharge in three individuals (A, B, C) of the "urban" colony of South American sea lions Otaria flavescens in Valdivia, Chile.
Fig. 4 in Non-invasive detection of Orthohalarachne attenuata (Banks, 1910) and Orthohalarachne diminuata (Doetschman, 1944) (Acari: Halarachnidae) in free-ranging synanthropic South American sea lions Otaria flavescens (Shaw, 1800)
Fig. 4. Larval stages of (A) Orthohalarachne attenuata and (B) Orthohalarachne diminuata showing distinct differences in idiosoma length.
Scientific names used for the South American sea lion in peer-review papers (2010-2020)
<p>The valid specific name of the South American sea lion was controversial for many years since <em>Otaria flavescens</em> (Shaw, 1800) and <em>Otaria byronia</em> (de Blainville, 1820) were the disputing designations. The present database summarizes the use of both names in peer-reviewed papers obtain in Google Scholar for the period 2010-2020.</p>
Fig. 1 in New Records On Acanthocephalans From California Sea Lions Zalophus Californianus (Pinnipedia, Otariidae) From California, Usa
Fig. 1. Acanthocephalan species from California sea lions (Zalophus californianus): A — Corynosoma strumosum, total view of adult male; B — Corynosoma obtuscens, total view of female; C — Profilicollis altmani, total view of immature male; D — Andracantha phalacrocoracis, anterior part of female; E — Andrcantha sp., total view of immature female. Scale bars: A, B, C, E — 1 mm, D — 500 μm.
Fig. 2 in New Records On Acanthocephalans From California Sea Lions Zalophus Californianus (Pinnipedia, Otariidae) From California, Usa
Fig. 2. Acanthocephalan species from California sea lions (Zalophus californianus): A — Andracantha sp., total view of immature male. Scale bar 1 mm; B — Andracantha sp., proboscis of female. Scale bar 500 μm; C — Andracantha sp., total view of immature female. Scale bar 1 mm; D — Andracantha phalacrocoracis, spines of ventral surface. Scale bar 1 mm; E — Corynosoma obtuscens, transitional hooks. Scale bar 50 μm; F — Corynosoma strumosum, transitional hooks. Scale bar 50 μm; G — Profilicollis altmani, longitudinal row of hooks. Scale bar 100 μm; H — Andracantha sp., posterior part of female. Scale bar 500 μm; J — Andracantha sp., longitudinal row of hooks. Scale bar 100 μm; K — Andracantha phalacrocoracis, longitudinal row of hooks. Scale bar 100 μm.
Fig. 2. Giardia duodenalis 18S in Giardia duodenalis and Cryptosporidium occurrence in Australian sea lions (Neophoca cinerea) exposed to varied levels of human interaction
Fig. 2. Giardia duodenalis 18S rRNA phylogenetic tree. Phylogenetic analysis of Giardia duodenalis positive samples was performed using a fragment of 18S rRNA gene. Analysis within the phylogenetic framework placed sea lion samples within the assemblage B (n = 27) and assemblage A clades (n = 1). Branch values indicate percent bootstrapping using 1000 replicates.
Fig. 1 in Giardia duodenalis and Cryptosporidium occurrence in Australian sea lions (Neophoca cinerea) exposed to varied levels of human interaction
Fig. 1. (A) Western Australia sampling locations. Faecal samples were collected from West Australia Sea lion colonies on Beagle and North Fisherman Islands. Coastal settlements and human impacted camping locations within close proximity to Sea lion colonies are indicated. (B) South Australia sampling locations. Australian sea lion faecal samples were collected from South Australia colonies; Blefuscu, Lewis, Liguanea, Lilliput, Olive and West Waldegrave Islands. Coastal towns and camping areas within close proximity to Australian Sea lion colonies are identified. (C) South Australia sampling locations: Kangaroo Island. Three colonies were sampled from Kangaroo Island including Cape Gantheaume, Seal Bay and Seal Slide. Coastal towns and recreational beach camping sites on the island are indicated.
Fig. 1 in Metazoan parasites of California sea lions (Zalophus californianus): A new data and review
Fig. 1. Microphotographs of the metazoan parasites of California sea lions Zalophus califronianus. A, B – Apophallus zalophi, intestine (Digenea), C – Zalophotrema hepaticum, liver (Digenea), D, G – Contracaecum ogmorhini s. l., stomach (Nematoda), E, H – Pseudoterranova decipiens s. l., stomach (Nematoda), F – Anisakis simplex s. l., stomach (Nematoda), I, S – Diphyllobothrium sp., intestine (Cestoda), J, K – Orthohalarchne attenuata, nasal cavity (Acarina), L – Orthohalarchne diminuata (Acarina), M, R – Anophryocephalus sp., intestine (Cestoda), N, O – Corynosoma obtuscens, intestine (Acanthocephala), P, Q – Profilicollis altmani, intestine (Acanthocephala). A, C, F–I, K, M, N, P – under dissecting scope. B, Q – at light microscope. D, E, O, R, S, – at scanning electron microscope. J – in situ.
Fig. 2 in Metazoan parasites of California sea lions (Zalophus californianus): A new data and review
Fig. 2. Prevalence and proportion of separate species in the gastrointestinal helminth community of California sea lions (Zalophus californianus). Abbreviations of the genera: A – Anisakis, An – Andracantha, Ap – Apophallus, C – Contracaecum, Co – Corynosoma, P – Pseudoterranova, Pa – Parafilaroides, Pr – Profilicollis, Z – Zalophotrema.
Fig. 1 in Topical ivermectin is a highly effective seal 'spot-on': A randomised trial of hookworm and lice treatment in the endangered Australian sea lion (Neophoca cinerea)
Fig. 1. Flow diagram of the trial course showing pup recruitment and recapture count for the three experimental groups for each of the three colony visits. P1 = time between recruitment and first recapture; P2 = time between first recapture and second recapture. Observation of deceased pups is shown relative to (i.e., before or after) the pup's sampling at that visit.
Fig. 2 in South American Sea Lions Otaria flavescens, a good indicator of relative spatial and temporal changes in the distribution and abundance of marine resources?
Fig. 2. Frequency of occurrence of the main prey taxa in the diet of Otaria flavescens (Shaw, 1800) from the San MatÍas Gulf, Argentina.
Fig. 4 in First report of a severe nasopulmonary acariasis caused by Orthohalarachne diminuata Doetschman, 1944 (Acari: Halarachnidae) in a captive South American sea lion (Otaria flavescens Shaw, 1800)
Fig. 4. ML tree based on 16S rDNA sequences. I. ricinus and D. reticulatus were used as outgroups. Bootstrap values of>70% are shown.
Fig. 3 in First report of a severe nasopulmonary acariasis caused by Orthohalarachne diminuata Doetschman, 1944 (Acari: Halarachnidae) in a captive South American sea lion (Otaria flavescens Shaw, 1800)
Fig. 3. Retrospective evaluation of ante mortem examinations. (A) Dorsal and (B) cranial view of computed tomography (CT) of lung field, revealing marginal emphysematous bullae potentially associated with O. diminuata infestations (arrows). (C) Macroscopically visible mite and mucous in bronchoalveolar lavage (BAL) fluid.
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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.