Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
The function of the ecdysone receptor (EcR) during development and molting has been thoroughly investigated in some arthropods such as insects but rarely in crustacean copepods such as the salmon louse Lepeophtheirus salmonis (L. salmonis) (Copepoda, Caligidae). The salmon louse is an ectoparasite on Atlantic salmon that has major economical impact in aquaculture due to the cost of medical treatment methods to remove lice from the fish. Handling of salmon louse infestations is further complicated by development of resistance towards available medicines. Understanding of basic molecular biological processes in the salmon louse is essential to enable development of new tools to control the parasite. In this study, we found L. salmonis EcR (LsEcR) transcript to be present in the neuronal somata of the brain, nuclei of muscle fibres and the immature intestine of the salmon louse. Furthermore, we explored the function of LsEcR during development using RNA interference mediated knock-down and through infection trials. Our results show that knock-down of LsEcR in the salmon louse is associated with hypotrophy of several tissues, delayed development and mortality. In addition, combined knock-down of LsEcR/LsRXR resulted in molting arrest during early larval stages.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.molbiopara.2016.06.007 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Diversity and assembly mechanisms of zooplankton communities in freshwater aquaculture ponds.
Mar Life Sci Technol
August 2025
State Key Laboratory of Lake and Watershed Science for Water Security, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072 China.
Unlabelled: Ecological succession is vital for forecasting ecosystem responses to environmental changes and their future states. Zooplankton, a primary natural food source in aquaculture, plays a crucial role in maintaining ecosystem function. Thus, understanding how zooplankton communities respond to environmental changes is essential for economic and ecological outcomes.
View Article and Find Full Text PDFTwo new species of Kiefer, 1932 (Copepoda, Calanoida, Diaptomidae) from temporary waters in Thailand and Cambodia with a key to Southeast Asian species.
Zookeys
August 2025
Applied Taxonomic Research Center, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand Khon Kaen University Khon Kaen Thailand.
Two new copepod species of the species-rich genus , collected from temporary water habitats in Southeast Asia, are described. A critical morphological comparison has revealed that the two new species, from Thailand and from Cambodia, closely resemble their respective congeners, (Brehm, 1923) and (Richard, 1894). However, can be distinguished from other congeners, including , by the following characters of the male P5: (1) the inner margin of the right basis has one small semicircular knob and one triangular knob; (2) the right second exopodal segment has a long, slender accessory spine inserted at the proximal third of the outer margin; and (3) the inner margin of the left exopod has a bilobed saw with a series of large denticles and smaller denticles near the distal end.
View Article and Find Full Text PDFEffect of plastic and seaweed shelters on the skin microbiome of lumpfish Cyclopterus lumpus used as cleaner fish in aquaculture pens.
PLoS One
September 2025
Department of Ecology, Firum PF, Hvalvík, The Faroe Islands.
Atlantic salmon (Salmo salar) aquaculture is a major industry in several countries worldwide and a growing enterprise in others. One of the main challenges the industry faces is infestations with the parasitic copepod Lepeoptheirus salmonis, or salmon lice. Several different chemical and mechanical methods are available for alleviating the problem, but often at cost to salmon welfare and/or the environment.
View Article and Find Full Text PDFThe effect of ocean alkalinity enhancement on zooplankton standing stock and community composition in the Eastern Mediterranean Sea: a mesocosm study.
Mar Environ Res
August 2025
Hellenic Centre for Marine Research, Institute of Oceanography, Heraklion, Greece.
Ocean acidification (OA) due to anthropogenic CO2 emissions has significantly altered ocean chemistry since the industrial era. Ocean alkalinity enhancement (OAE) is an innovative strategy to mitigate excess CO, with ocean liming (OL) serving as a potential carbon dioxide removal (CDR) method, through the spreading of Ca(OH) (slaked lime) at the ocean surface. This study examined the ecological effects of OL on a natural zooplankton community from the ultraoligotrophic Eastern Mediterranean Sea during a 14-day mesocosm experiment conducted in spring-summer.
View Article and Find Full Text PDFMapping marine plankton abundance along ecological gradients in the South Brazilian Shelf.
Mar Environ Res
August 2025
Marine Biotechnology, Instituto de Estudos do Mar Almirante Paulo Moreira, Arraial do Cabo, RJ, 28930-000, Brazil; 'Marine Biotechnology' Associated Post-Graduation Program IEAPM/UFF, Instituto de Estudos do Mar Almirante Paulo Moreira (IEAPM), Arraial do Cabo, Rio de Janeiro, Brazil.
Plankton communities form the foundation of marine food webs, determining the ecosystem carrying capacity and the services they provide. Their spatial distribution patterns are highly dynamic, influenced by ocean stratification, mixed layer depth, and nutrient availability. In this study, we combined an advanced imaging system with a machine learning model to explore how environmental factors shape plankton distribution on the South Brazilian Shelf.
View Article and Find Full Text PDF