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65 results for “marine copepods”
Fig. 4. Arctopontius adelphus n in Siphonostomatoid copepods (Crustacea) mainly associated with marine invertebrates from Korean waters
Fig. 4. Arctopontius adelphus n. sp., female. A, maxilliped; B, leg 1; C, leg 3; D, leg 4; E, leg 4 endopod; F, leg 5; G, leg 6. Scale bars: AD, 0.1 mm; EG, 0.05 mm.
Fig. 5. Dyspontius alatus n in Siphonostomatoid copepods (Crustacea) mainly associated with marine invertebrates from Korean waters
Fig. 5. Dyspontius alatus n. sp., female. A, habitus, dorsal; B, urosome, ventral; C, left epimera of second and third pedigerous somites, dorsal; D, ornamentations of tergites of somites; E, anal somite and caudal rami, dorsal; F, rostral area, ventral; G, antennule; H, antenna; I, oral siphon; J, distal part of mandible. Scale bars: A, 0.1 mm; B, C, F, G, I, 0.05 mm; E, H, 0.02 mm; D, J, 0.01 mm.
Fig. 1. Arctopontius minutus n in Siphonostomatoid copepods (Crustacea) mainly associated with marine invertebrates from Korean waters
Fig. 1. Arctopontius minutus n. sp., female. A, habitus, dorsal; B, urosome, dosal; C, left caudal ramus, dorsal; D, tergal ornamentation of cephalothorax; E, rostral area, ventral; F, antennule; G, antenna; H, oral siphon; I, maxillule. Scale bars: A, 0.2 mm; B, E, H, 0.1 mm; C, D, F, G, I, 0.05 mm.
Fig. 7. Laophontella horrida dentata Mielke, 1992 in Three new harpacticoid copepods for Korea from marine interstitial habitats
Fig. 7. Laophontella horrida dentata Mielke, 1992, SEM photographs, adult male, lateral view; A, anterior part of cephalothorax and first segment of antennula; B, apical setae on first leg endopod; C, sixth leg and last two exopodal segments of fourth swimming leg; D, caudal ramus; E, detail of armature and ornamentation of proximal part of caudal ramus; F, detail of principal caudal seta.
Fig. 4. Laophontodes norvegicus George, 2018, male 1 in Three new harpacticoid copepods for Korea from marine interstitial habitats
Fig. 4. Laophontodes norvegicus George, 2018, male 1, ventral view; A, CLM photograph; B-H, SEM photographs; A, habitus; B, habitus; C, antennula; D, detail of armature and ornamentation of proximal part of antennula; E, detail of armature and ornamentation of central part of antennula; F, detail of armature and ornamentation of distal part of antennula; G, labrum and mouth appendages; H, first swimming leg.
Fig. 5. Laophontodes norvegicus George, 2018, male 1 in Three new harpacticoid copepods for Korea from marine interstitial habitats
Fig. 5. Laophontodes norvegicus George, 2018, male 1, ventral view, SEM photographs; A, distal part of maxilliped and basis of first swimming leg; B, third exopodal segment of second swimming leg; C, tubular pore on second exopodal segment of second swimming leg; D, distal frill of fourth urosomite; E, caudal ramus; F, detail of ornamentation of proximal part of caudal ramus; G, lateral setae on caudal ramus; H, distal part of caudal ramus.
Fig. 3. Phyllopodopsyllus thiebaudi santacruzensis Mielke, 1989 in Three new harpacticoid copepods for Korea from marine interstitial habitats
Fig. 3. Phyllopodopsyllus thiebaudi santacruzensis Mielke, 1989; A-D, SEM photographs; E-H, CLM photographs; A, B, male 1, lateral view; C, D, male 2, ventral view; E-H, female 4, dissected and mounted on microscope slides, anterior view: A, habitus; B, anal somite and caudal rami; C, habitus; D, distal part of antennula; E, first swimming leg; F, second swimming leg; G, third swimming leg; H, fourth swimming leg.
Fig. 2. Phyllopodopsyllus thiebaudi santacruzensis Mielke, 1989 in Three new harpacticoid copepods for Korea from marine interstitial habitats
Fig. 2. Phyllopodopsyllus thiebaudi santacruzensis Mielke, 1989, SEM photographs; A-C, female 2, dorsal view; D-G, female 3, ventral view; H, male 1, lateral view: A, habitus; B, anterior part of cephalothorax with rostrum and first segment of antennula; C, anal somite and caudal rami; D, habitus; E, anal somite and caudal rami; F, endopod and first two exopodal segment of second swimming leg; G, distal part of third exopodal segment of fourth swimming leg; H, distal part of antennula.
Fig. 1. Phyllopodopsyllus thiebaudi santacruzensis Mielke, 1989 in Three new harpacticoid copepods for Korea from marine interstitial habitats
Fig. 1. Phyllopodopsyllus thiebaudi santacruzensis Mielke, 1989, SEM photographs, female 1, lateral view: A, habitus; B, cephalothoracic shield; C, tergites of free prosomites; D, genital somite with proximal part of fifth leg; E, distal part of fifth leg; F, anal somite and caudal ramus; G, second endopodal segment of first swimming leg; H, exopod of antenna.
Figure 1 in Marine protozoan epibionts on the copepod Lepeophtheirus salmonis, parasite of the Atlantic salmon
Figure 1. Ephelota gemmipara. (a) Schematic diagram of the body. ct, capitate tentacles; pt, prehensile tentacles; cv, contractile vacuole; ls, longitudinal striations; Ma, macronucleus; Mi, micronucleus; s, stalk; ts, tranversal striations. (b) Schematic diagram of a bud of Ephelota gemmipara. rcf, right ciliar field; lcf, left ciliar field; Ma, macronucleus.
Figures 2–7 in Marine protozoan epibionts on the copepod Lepeophtheirus salmonis, parasite of the Atlantic salmon
Figures 2–7. (2) A specimen of the copepod Lepeophtheirus salmonis showing the suctoria attached to its surface (×11). (3) Two individuals of Ephelota gemmipara showing the lobulate macronucleus, the tentacles and the stalk (×112). (4) Ephelota gemmipara. SEM photomicrography showing buds (×224). (5) Ephelota gemmipara. SEM photomicrography showing the distal part of the stalk and the body (×224). (6) Ephelota gigantea. General view of the body (×108). (7) Ephelota gigantea. Aspect of the anterior area of the body (×149).
Figure 8 in Marine protozoan epibionts on the copepod Lepeophtheirus salmonis, parasite of the Atlantic salmon
Figure 8. Ephelota gigantea. (a) Schematic diagram of the body. pt, prehensile tentacles; ct, capitate tentacles; cv, contractile vacuole; Ma, macronucleus; Mi, micronucleus; ls, longitudinal striations; s, stalk. (b) Schematic diagram of the fibrillar bands of the suprastylar area of the stalk. afb, anterior fibrillar band; ifb, intermediate fibrillar band; pfb, posterior fibrillar band.
Marine Planktonic Copepods: Marine Planktonic Copepods- test snapshot, Feb 24, 2021
Razouls C., de Bovée F., Kouwenberg J. et Desreumaux N., 2005-2018. - Diversity and Geographic Distribution of Marine Planktonic Copepods. Sorbonne Université, CNRS. Available at <p></p>http://copepodes.obs-banyuls.fr/en<p></p>
Marine Planktonic Copepods
Razouls C., de Bovée F., Kouwenberg J. et Desreumaux N., 2005-2018. - Diversity and Geographic Distribution of Marine Planktonic Copepods. Sorbonne Université, CNRS. Available at <p></p>http://copepodes.obs-banyuls.fr/en<p></p>Razouls C., de Bovée F., Kouwenberg J. et Desreumaux N., 2005-2018. - Diversity and Geographic Distribution of Marine Planktonic Copepods. Sorbonne Université, CNRS. Available at <p></p>http://copepodes.obs-banyuls.fr/en
Data from: Complex interactions between local adaptation, phenotypic plasticity, and sex affect vulnerability to warming in a widespread marine copepod
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CPR dataset for: Testing Bergmann's Rule in Marine Copepods
<p>This is the global dataset used for the Campbell et al. (2021) paper "Testing Bergmann's Rule in marine copepods". The dataset includes the mean length of copepods weighted by abundance found in 97,830 continuous plankton recorder (CPR) samples. Further, it contains satellite observations for sea surface temperature, chlorophyll-a, and dissolved oxygen (see paper for details). It was a massive collaborative effort to get this dataset assembled by the Global Alliance of CPR Surveys (GACS 2011, Batten et al. 2019).</p>
Data from: Adaptation to heat stress reduces phenotypic and transcriptional plasticity in a marine copepod
Organisms may respond to changing environments through phenotypic plasticity or adaptive evolution. These two processes are not mutually exclusive and may either dampen or strengthen each other's effects, depending on the genetic correlation between trait values and the slopes of their norms of reaction. To examine the effect of adaptation to heat stress on the plasticity of heat tolerance, we hybridized populations of the crustacean Tigriopus californicus that show divergent phenotypes for heat tolerance. We then selected for increased heat tolerance in hybrids and measured heat tolerance and the phenotypic plasticity of heat tolerance in both selected lines and unselected controls. To test whether the changes in phenotypic plasticity were associated with changes in the plasticity of gene expression, we also sequenced transcriptomes of selected and unselected lines, both under heat shock and at ambient temperatures. We observed increased heat tolerance in selected lines, but also lower phenotypic and transcriptional plasticity in response to heat stress. The plastic response to heat stress was highly enriched for hydrolytic and catalytic activities, suggesting a prominent role for degradation of misfolded proteins. Our findings have important implications for biological responses to climate change: if adaptation to environmental stress reduces plasticity, then plasticity and adaptive evolution will make overlapping, rather than additive contributions to buffering populations from environmental change.
Data from: A metagenetic approach for revealing community structure of marine planktonic copepods
Marine planktonic copepods are an ecologically important group with high species richness and abundance. Here, we propose a new metagenetic approach for revealing the community structure of marine planktonic copepods using 454 pyrosequencing of nuclear large subunit ribosomal DNA. We determined an appropriate similarity threshold for clustering pyrosequencing data into molecular operational taxonomic units (MOTUs) using an artificial community containing 33 morphologically identified species. The 99% similarity threshold had high species-level resolution for MOTU clustering but overestimated species richness. The artificial community was appropriately clustered into MOTUs at 97% similarity, with little inflation in MOTU numbers and with relatively high species-level resolution. The number of sequence reads of each MOTU was correlated with dry weight of that taxon, suggesting that sequence reads could be used as a proxy for biomass. Next, we applied the method to field-collected samples, and the results corresponded reasonably well with morphological analysis of these communities. Numbers of MOTUs were well correlated with species richness at 97% similarity, and large numbers of sequence reads were generally observed in MOTUs derived from species with large biomass. Further, MOTUs were successfully classified into taxonomic groups at the family level at 97% similarity; similar patterns of species richness and biomass were revealed within families with metagenetic and morphological analyses. At the 99% similarity threshold, MOTUs with high proportions of sequence reads were identified as biomass-dominant species in each field-collected sample. The metagenetic approach reported here can be an effective tool for rapid and comprehensive assessment of copepod community structure.
Data from: Assessing the in situ fertilization status of two marine copepod species, Temora longicornis and Eurytemora herdmani; how common are unfertilized eggs in nature?
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Data from: Adaptation to heat stress reduces phenotypic and transcriptional plasticity in a marine copepod
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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.