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45 results for “Lepeophtheirus”
Figure 6. Lepeophtheirus acutus Heegaard, 1943 in Redescription of Lepeophtheirus acutus Heegaard, 1943 (Copepoda: Caligidae) parasitic on two elasmobranch hosts off Okinawa-jima Island, Japan
Figure 6. Lepeophtheirus acutus Heegaard, 1943 infections on an Alfred manta Manta alfredi (Krefft, 1868) held in a sea pen off the western coastline of Okinawa-jima Island, Japan. (A) Clusters of L. acutus (indicated by arrowheads) around the mouth and on the left cephalic fin of M. alfredi (no. 22) on 15 November 2009; and (B) large lesion (indicated by arrowhead) on the dorsal body surface of M. alfredi (no. 22) caused by L. acutus on 15 November 2009.
Figure 4. Lepeophtheirus acutus Heegaard, 1943 in Redescription of Lepeophtheirus acutus Heegaard, 1943 (Copepoda: Caligidae) parasitic on two elasmobranch hosts off Okinawa-jima Island, Japan
Figure 4. Lepeophtheirus acutus Heegaard, 1943, adult male (A, B, E, F) and adult female (C, D). (A) Sternal furca, ventral; (B) right legs 5 and 6 with detail of distolateral corner of genital operculum, ventral; (C) endopod of right leg 1, anterior; (D) sternal furca, dorsal; (E) endopod of left leg 3, ventral; (F) distolateral corner of left genital operculum, ventral. Scale bars: A, B, E = 50 µm; C = 25 µm; D = 100 µm; F = 20 µm.
Figure 7. Lepeophtheirus acutus Heegaard, 1943 in Redescription of Lepeophtheirus acutus Heegaard, 1943 (Copepoda: Caligidae) parasitic on two elasmobranch hosts off Okinawa-jima Island, Japan
Figure 7. Lepeophtheirus acutus Heegaard, 1943 infections on the whale shark Rhincodon typus Smith, 1828 held in sea pens off the western coastline of Okinawa-jima Island, Japan. (A) Two ovigerous females of L. acutus (indicated by arrowheads) on the right eye of R. typus (no. 27) on 28 April 2010; and (B) cluster of L. acutus (two individuals in this cluster indicated by arrowheads) associated with a lesion on the dorsal body surface of R. typus (no. 33) on 5 October 2009.
Figure 2. Lepeophtheirus acutus Heegaard, 1943 in Redescription of Lepeophtheirus acutus Heegaard, 1943 (Copepoda: Caligidae) parasitic on two elasmobranch hosts off Okinawa-jima Island, Japan
Figure 2. Lepeophtheirus acutus Heegaard, 1943, adult female. (A) Left maxilla, anterior; (B) left maxilliped, posterior; (C) sternal furca, ventral; (D) right leg 1 with detail of endopod tip and apical armature elements on second exopodal segment, anterior; (E) right leg 2, anterior. Scale bars: A–D = 100 µm; E = 200 µm.
Data from: A common-garden experiment to quantify evolutionary processes in copepods: the case of emamectin benzoate resistance in the parasitic sea louse Lepeophtheirus salmonis
Background:The development of pesticide resistance represents a global challenge to food production. Specifically for the Atlantic salmon aquaculture industry, parasitic sea lice and their developing resistance to delousing chemicals is challenging production. In this study, seventeen full sibling families, established from three strains of Lepeophtheirus salmonis displaying differing backgrounds in emamectin benzoate (EB) tolerance were produced and quantitatively compared under a common-garden experimental design. Lice surviving to the preadult stage were then exposed to EB and finally identified through the application of DNA parentage testing. Results: With the exception of two families (19 and 29%), survival from the infectious copepod to preadult stage was very similar among families (40-50%). In contrast, very large differences in survival following EB exposure were observed among the families (7.9-74%). Family survival post EB exposure was consistent with the EB tolerance characteristics of the strains from which they were established and no negative effect on infection success were detected in association with increased EB tolerance. Two of the lice families that displayed reduced sensitivity to EB were established from a commercial farm that had previously used this chemical. This demonstrates that resistant alleles were present on this farm even though the farm had not reported treatment failure. Conclusions: To our knowledge, this represents the first study where families of any multi-cellular parasite have been established and compared in performance under communal rearing conditions in a common-garden experiment. The system performed in a predictable manner and permitted, for the first time, elucidation of quantitative traits among sea lice families. While this experiment concentrated on, and provided a unique insight into EB sensitivity among lice families, the experimental design represents a novel methodology to experimentally address both resistance development and other evolutionary questions in parasitic copepods.
Fig. 19. Lepeophtheirus tamladus n in Sea lice (Copepoda, Siphonostomatoida, Caligidae) new to Korea, including three new species
Fig. 19. Lepeophtheirus tamladus n. sp., female. A. habitus, dorsal. B. abdomen, ventral. C. caudal ramus, ventral. D. antennule. E. antenna, postantennal process, and maxillule. F. maxilla. G. maxilliped. H. sternal furca. I. leg 1. Scales=A. 0.5 mm. B, E, F, H, I. 0.1 mm. C. D, G. 0.05 mm.
Data from: A common-garden experiment to quantify evolutionary processes in copepods: the case of emamectin benzoate resistance in the parasitic sea louse Lepeophtheirus salmonis
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Differentiating size-dependent responses of juvenile pink salmon (Oncorhynchus gorbuscha) to sea lice (Lepeophtheirus salmonis) infections
GEO Series GSE27528. Oncorhynchus gorbuscha; Oncorhynchus mykiss; Salmo salar. 36 samples. Type: Expression profiling by array.
Transcriptomic responses to emamectin benzoate in Pacific and Atlantic Canada salmon lice Lepeophtheirus salmonis with differing levels of drug resistance
GEO Series GSE56024. Lepeophtheirus salmonis. 95 samples. Type: Expression profiling by array.
Sex-Biased Gene Expression and Sequence Conservation in Pacific and Atlantic Salmon Lice (Lepeophtheirus salmonis)
GEO Series GSE73734. Lepeophtheirus salmonis. 40 samples. Type: Expression profiling by array.
Enhanced transcriptomic responses in the Pacific salmon louse Lepeophtheirus salmonis oncorhynchi to the non-native Atlantic Salmon Salmo salar suggests increased parasite fitness
GEO Series GSE80220. Lepeophtheirus salmonis. 84 samples. Type: Expression profiling by array.
High level efficacy of lufenuron against sea lice (Lepeophtheirus salmonis) linked to rapid impact on moulting processes
GEO Series GSE99880. Lepeophtheirus salmonis. 21 samples. Type: Expression profiling by array.
Transcriptomics of coping strategies in free-swimming Lepeophtheirus salmonis (Copepoda)
GEO Series GSE37976. Lepeophtheirus salmonis. 78 samples. Type: Expression profiling by array.
Transcriptomic responses of copepodid sea lice (Lepeophtheirus salmonis) exposed to cypermethrin (Betamax®)
GEO Series GSE76555. Lepeophtheirus salmonis. 12 samples. Type: Expression profiling by array.
Comparative transcriptomics of Atlantic Salmo salar, chum Onchorhynchus keta and pink salmon O. gorbuscha responding to salmon lice Lepeophtheirus salmonis infections
GEO Series GSE48337. Salmo salar; Oncorhynchus gorbuscha; Oncorhynchus keta. 194 samples. Type: Expression profiling by array.
Effects of the vertically transmitted microsporidian Facilispora margolisi and the parasiticide emamectin benzoate on salmon lice (Lepeophtheirus salmonis)
GEO Series GSE94692. Lepeophtheirus salmonis; Lepeophtheirus salmonis oncorhynchi. 28 samples. Type: Expression profiling by array.
Interacting effects of sea louse (Lepeophtheirus salmonis) infection and formalin-killed Aeromonas salmonicida in Atlantic salmon skin transcriptome
GEO Series GSE186292. Salmo salar. 24 samples. Type: Expression profiling by array.
Responses to ectoparasite salmon louse (Lepeophtheirus salmonis) in spleen of Atlantic salmon
GEO Series GSE26984. Salmo salar. 20 samples. Type: Expression profiling by array.
Responses to ectoparasite salmon louse (Lepeophtheirus salmonis) in skin of Atlantic salmon
GEO Series GSE26981. Oncorhynchus mykiss; Salmo salar. 20 samples. Type: Expression profiling by array.
Figure 4 in Localization and transcription patterns of LsVasa, a molecular marker of germ cells in Lepeophtheirus salmonis (Krøyer)
Figure 4. Tissue distribution of Lepeophtheirus salmonis Vasa (LsVasa) protein. Western blotting using the K12-3 anti-Vasa serum on protein extracts from selected tissues. LsVasa with an approximate molecular weight of 62 kDa is indicated with a black arrow.
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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