copepoda

Summary

Summary: A huge subclass of mostly marine CRUSTACEA, containing over 14,000 species. The 10 orders comprise both planktonic and benthic organisms, and include both free-living and parasitic forms. Planktonic copepods form the principle link between PHYTOPLANKTON and the higher trophic levels of the marine food chains.

Top Publications

  1. Suárez Morales E. Diversity of the Monstrilloida (Crustacea: Copepoda). PLoS ONE. 2011;6:e22915 pubmed publisher
    ..Many species records are doubtful or improbable, and purportedly cosmopolitan nominal species are being revealed as species complexes yet to be studied...
  2. Yasuike M, Leong J, Jantzen S, von Schalburg K, Nilsen F, Jones S, et al. Genomic resources for sea lice: analysis of ESTs and mitochondrial genomes. Mar Biotechnol (NY). 2012;14:155-66 pubmed publisher
    ..This report represents the largest genomic resource for any copepod species to date...
  3. Jensen L, Honkanen J, Jæger I, Carroll J. Bioaccumulation of phenanthrene and benzo[a]pyrene in Calanus finmarchicus. Ecotoxicol Environ Saf. 2012;78:225-31 pubmed publisher
    ..These findings on the bio-uptake kinetics for petroleum hydrocarbons are essential for evaluating the potential consequences of an oil spill in the Arctic...
  4. Markova S, Burakova L, Vysotski E. High-active truncated luciferase of copepod Metridia longa. Biochem Biophys Res Commun. 2012;417:98-103 pubmed publisher
    ..The results clearly suggest that the truncated Metridia luciferase is well suited as a secreted reporter ensuring higher detection sensitivity in comparison with a wild type enzyme...
  5. Lauritano C, Borra M, Carotenuto Y, Biffali E, Miralto A, Procaccini G, et al. Molecular evidence of the toxic effects of diatom diets on gene expression patterns in copepods. PLoS ONE. 2011;6:e26850 pubmed publisher
    ..These cytotoxic compounds are responsible for growth inhibition and teratogenic activity, potentially sabotaging future generations of grazers by inducing poor recruitment in marine organisms such as crustacean copepods...
  6. Wyngaard G, Rasch E, Connelly B. Unusual augmentation of germline genome size in Cyclops kolensis (Crustacea, Copepoda): further evidence in support of a revised model of chromatin diminution. Chromosome Res. 2011;19:911-23 pubmed publisher
    ..Specific tests for these hypotheses using next-generation sequencing and quantitative cytophotometry, as well as the functional significance of germ cell DNA augmentation to the copepod, are discussed...
  7. Schoville S, Flowers J, Burton R. Diversifying selection underlies the origin of allozyme polymorphism at the phosphoglucose isomerase locus in Tigriopus californicus. PLoS ONE. 2012;7:e40035 pubmed publisher
  8. Lee C, Kiergaard M, Gelembiuk G, Eads B, Posavi M. Pumping ions: rapid parallel evolution of ionic regulation following habitat invasions. Evolution. 2011;65:2229-44 pubmed publisher
    ..Moreover, the speed of these evolutionary shifts was remarkable, within a few generations in the laboratory and a few decades in the wild...
  9. Hansen B, Altin D, Olsen A, Nordtug T. Acute toxicity of naturally and chemically dispersed oil on the filter-feeding copepod Calanus finmarchicus. Ecotoxicol Environ Saf. 2012;86:38-46 pubmed publisher
    ..The slight differences in toxicity between chemically and naturally dispersed oil suggest that risk assessment should be based on the whole concentration response curve to ensure survival of C. finmarchicus...

More Information

Publications62

  1. Jackson D, Cotter D, Newell J, McEvoy S, O Donohoe P, Kane F, et al. Impact of Lepeophtheirus salmonis infestations on migrating Atlantic salmon , Salmo salar L., smolts at eight locations in Ireland with an analysis of lice-induced marine mortality. J Fish Dis. 2013;36:273-81 pubmed publisher
  2. Skilbrei O, Finstad B, Urdal K, Bakke G, Kroglund F, Strand R. Impact of early salmon louse, Lepeophtheirus salmonis, infestation and differences in survival and marine growth of sea-ranched Atlantic salmon, Salmo salar L., smolts 1997-2009. J Fish Dis. 2013;36:249-60 pubmed publisher
    ..05) and equivalent to an odds ratio of the probability of being recaptured of 1.17 in favour of the treated smolts. Control fish also tended to be smaller as grilse (P = 0.057), possibly due to a sublethal effect of salmon lice...
  3. Willett C. Complex deleterious interactions associated with malic enzyme may contribute to reproductive isolation in the copepod Tigriopus californicus. PLoS ONE. 2011;6:e21177 pubmed publisher
    ..Confirmation of this idea will require more fine-scale mapping of the interactions of the ME2 region of the genome. ..
  4. Christie A, Roncalli V, Wu L, Ganote C, DOAK T, Lenz P. Peptidergic signaling in Calanus finmarchicus (Crustacea, Copepoda): in silico identification of putative peptide hormones and their receptors using a de novo assembled transcriptome. Gen Comp Endocrinol. 2013;187:117-35 pubmed publisher
    ..Collectively, these data radically expand the catalog of known C. finmarchicus peptidergic signaling proteins and provide a foundation for experiments directed at understanding the physiological roles served by them in this species...
  5. Jonsson M, Hylander S, Ranåker L, Nilsson P, Brönmark C. Foraging success of juvenile pike Esox lucius depends on visual conditions and prey pigmentation. J Fish Biol. 2011;79:290-7 pubmed publisher
    ..Pigments in copepod prey may have a cryptic function in brown water instead of a photo-protective function even if prey-size selectivity was stronger than selection based on pigmentation in juvenile E. lucius...
  6. Chen G, Hare M. Cryptic diversity and comparative phylogeography of the estuarine copepod Acartia tonsa on the US Atlantic coast. Mol Ecol. 2011;20:2425-41 pubmed publisher
    ..Applying a crustacean mtCOI molecular clock suggests that A. tonsa lineages diverged pre-Pleistocene but mid-Atlantic F lineage diversification may be post-Pleistocene...
  7. Dalvin S, Frost P, Loeffen P, Skern Mauritzen R, Baban J, Rønnestad I, et al. Characterisation of two vitellogenins in the salmon louse Lepeophtheirus salmonis: molecular, functional and evolutional analysis. Dis Aquat Organ. 2011;94:211-24 pubmed publisher
    ..In conclusion, our results confirm the role of vitellogenins in reproduction as providers of embryonic and larval nutrition...
  8. Pritchard V, Dimond L, Harrison J, S Velázquez C, Zieba J, Burton R, et al. Interpopulation hybridization results in widespread viability selection across the genome in Tigriopus californicus. BMC Genet. 2011;12:54 pubmed publisher
    ..We identified and mapped population-diagnostic single nucleotide polymorphisms (SNPs) and used these to examine segregation distortion across the genome within F2 hybrids...
  9. Cornils A, Blanco Bercial L. Phylogeny of the Paracalanidae Giesbrecht, 1888 (Crustacea: Copepoda: Calanoida). Mol Phylogenet Evol. 2013;69:861-72 pubmed publisher
    ..Molecular and morphological phylogenies were not congruent in the positioning of Bestiolina and the Paracalanus species groups, possibly due to the lack of sufficient phylogenetically-informative morphological characters. ..
  10. Saksida S, Marty G, Jones S, Manchester H, Diamond C, Bidulka J, et al. Parasites and hepatic lesions among pink salmon, Oncorhynchus gorbuscha (Walbaum), during early seawater residence. J Fish Dis. 2012;35:137-51 pubmed publisher
    ..Further research is required to monitor inter-annual variations and aetiology of the liver lesions and to assess their potential role on pink salmon survival...
  11. Mennerat A, Hamre L, Ebert D, Nilsen F, Davidova M, Skorping A. Life history and virulence are linked in the ectoparasitic salmon louse Lepeophtheirus salmonis. J Evol Biol. 2012;25:856-61 pubmed publisher
    ..Our study highlights that salmon lice, therefore, are a good model for studying how human activity may affect the evolution of parasite virulence...
  12. Benesh D, Hafer N. Growth and ontogeny of the tapeworm Schistocephalus solidus in its copepod first host affects performance in its stickleback second intermediate host. Parasit Vectors. 2012;5:90 pubmed publisher
    ..Using the tapeworm Schistocephalus solidus, we evaluated how parasite size, age, and ontogeny in the copepod first host interact to determine performance in the stickleback second host...
  13. Willett C. Quantifying the elevation of mitochondrial DNA evolutionary substitution rates over nuclear rates in the intertidal copepod Tigriopus californicus. J Mol Evol. 2012;74:310-8 pubmed publisher
    ..The results from this study suggest that mtDNA is evolving at a very rapid rate in this copepod species, and this could increase the likelihood that mtDNA evolution is involved in the generation of reproductive isolation...
  14. Marrone F, Lo Brutto S, Hundsdoerfer A, Arculeo M. Overlooked cryptic endemism in copepods: systematics and natural history of the calanoid subgenus Occidodiaptomus Borutzky 1991 (Copepoda, Calanoida, Diaptomidae). Mol Phylogenet Evol. 2013;66:190-202 pubmed publisher
  15. Hamre L, Nilsen F. Individual fish tank arrays in studies of Lepeophtheirus salmonis and lice loss variability. Dis Aquat Organ. 2011;97:47-56 pubmed publisher
    ..The loss of females appeared to be a process somewhat selective against large individuals. Inherent qualities of the host appeared to be of little significance in explaining the variability in loss of preadult/adult lice...
  16. Lauritano C, Procaccini G, Ianora A. Gene expression patterns and stress response in marine copepods. Mar Environ Res. 2012;76:22-31 pubmed publisher
  17. Krkosek M, Connors B, Morton A, Lewis M, Dill L, Hilborn R. Effects of parasites from salmon farms on productivity of wild salmon. Proc Natl Acad Sci U S A. 2011;108:14700-4 pubmed publisher
    ..These results reconcile the contradictory findings of previous studies and suggest that management and policy measures designed to protect wild salmon from sea lice should yield conservation and fishery benefits...
  18. Schneider T, Herzig A, Koinig K, Sommaruga R. Copepods in turbid shallow soda lakes accumulate unexpected high levels of carotenoids. PLoS ONE. 2012;7:e43063 pubmed publisher
    ..Our results explain the counter-intuitive notion of strong red pigmentation in copepods from a turbid ecosystem and suggest that factors other than high UV transparency favor carotenoid accumulation in zooplankton...
  19. Jiang Z, Huang Y, Chen Q, Zeng J, Xu X. Acute toxicity of crude oil water accommodated fraction on marine copepods: the relative importance of acclimatization temperature and body size. Mar Environ Res. 2012;81:12-7 pubmed publisher
    ..05) positive correlation between the 48-h LC(50) and body size. Therefore, the small copepod species confront more survival challenges under oil contamination stress, especially in the warm months or regions...
  20. Sutherland B, Jantzen S, Yasuike M, Sanderson D, Koop B, Jones S. Transcriptomics of coping strategies in free-swimming Lepeophtheirus salmonis (Copepoda) larvae responding to abiotic stress. Mol Ecol. 2012;21:6000-14 pubmed publisher
    ..The results further our understanding of the tolerances of L. salmonis copepodids to salinity and temperature gradients and may assist in the development of salmon louse management strategies...
  21. Torrissen O, Jones S, Asche F, Guttormsen A, Skilbrei O, Nilsen F, et al. Salmon lice--impact on wild salmonids and salmon aquaculture. J Fish Dis. 2013;36:171-94 pubmed publisher
    ..Salmon lice have large economic consequences for the salmon industry, both as direct costs for the prevention and treatment, but also indirectly through negative public opinion...
  22. Peacock S, Krkosek M, Proboszcz S, Orr C, Lewis M. Cessation of a salmon decline with control of parasites. Ecol Appl. 2013;23:606-20 pubmed
  23. Hamre L, Eichner C, Caipang C, Dalvin S, Bron J, Nilsen F, et al. The Salmon Louse Lepeophtheirus salmonis (Copepoda: Caligidae) life cycle has only two Chalimus stages. PLoS ONE. 2013;8:e73539 pubmed publisher
    ..These findings are of fundamental importance in experimental studies as well as for interpretation of salmon louse biology and for control and management of this economically important parasite. ..
  24. Madinabeitia I, Nagasawa K. Chalimus stages of Caligus latigenitalis (Copepoda:Caligidae) parasitic on blackhead seabream from Japanese waters, with discussion of terminology used for developmental stages of caligids. J Parasitol. 2011;97:221-36 pubmed publisher
    ..New terminology for the developmental stages of caligid copepods is proposed herein by amending the definition of chalimus as the postnaupliar stages, as well as semaphoronts having a frontal filament for host attachment...
  25. Brauner C, Sackville M, Gallagher Z, Tang S, Nendick L, Farrell A. Physiological consequences of the salmon louse (Lepeophtheirus salmonis) on juvenile pink salmon (Oncorhynchus gorbuscha): implications for wild salmon ecology and management, and for salmon aquaculture. Philos Trans R Soc Lond B Biol Sci. 2012;367:1770-9 pubmed publisher
    ..These data were accepted by environmental managers and are being used to minimize the impact of salmon aquaculture on wild pink salmon populations...
  26. Kim B, Rhee J, Park G, Lee J, Lee Y, Lee J. Cu/Zn- and Mn-superoxide dismutase (SOD) from the copepod Tigriopus japonicus: molecular cloning and expression in response to environmental pollutants. Chemosphere. 2011;84:1467-75 pubmed publisher
    ..Therefore, this study would give a clue to better understand the mode of action of antioxidant genes and enzymes under oxidative stress in marine invertebrates...
  27. Tjensvoll K, Glover K, Nylund A. Sequence variation in four mitochondrial genes of the salmon louse Lepeophtheirus salmonis. Dis Aquat Organ. 2006;68:251-9 pubmed
    ..It is suggested that the lack of genetic differentiation among lice samples from the North Atlantic is a result of extensive gene flow mediated by passive transport of L. salmonis larvae, and the migratory pattern of its salmonid hosts...
  28. Revie C, Gettinby G, Treasurer J, Grant A, Reid S. Sea lice infestations on farmed Atlantic salmon in Scotland and the use of ectoparasitic treatments. Vet Rec. 2002;151:753-7 pubmed
    ..There is also evidence that sites using treatments based on different chemical constituents had significantly different levels of infestation...
  29. Frangoulis C, Christou E, Hecq J. Comparison of marine copepod outfluxes: nature, rate, fate and role in the carbon and nitrogen cycles. Adv Mar Biol. 2005;47:253-309 pubmed
  30. Edmands S, Feaman H, Harrison J, Timmerman C. Genetic consequences of many generations of hybridization between divergent copepod populations. J Hered. 2005;96:114-23 pubmed
    ..Computer simulations showed that selection must be invoked to explain the shift in allele frequencies. Together, these results suggest that hybrid inferiority in early generations gave way to hybrid superiority in later generations...
  31. Rawson P, Burton R. Molecular evolution at the cytochrome oxidase subunit 2 gene among divergent populations of the intertidal copepod, Tigriopus californicus. J Mol Evol. 2006;62:753-64 pubmed
  32. Minxiao W, Song S, Chaolun L, Xin S. Distinctive mitochondrial genome of Calanoid copepod Calanus sinicus with multiple large non-coding regions and reshuffled gene order: useful molecular markers for phylogenetic and population studies. BMC Genomics. 2011;12:73 pubmed publisher
    ..As they are genome-level informative, mitochondrial DNA sequences can be used as markers for population genetic studies and phylogenetic studies...
  33. Fast M, Johnson S, Eddy T, Pinto D, Ross N. Lepeophtheirus salmonis secretory/excretory products and their effects on Atlantic salmon immune gene regulation. Parasite Immunol. 2007;29:179-89 pubmed
    ..This study demonstrates that there are other immunomodulatory compounds produced by L. salmonis, in addition to PGE(2) and trypsin, that can inhibit the expression of Atlantic salmon immune-related genes in vitro...
  34. Romano G, Russo G, Buttino I, Ianora A, Miralto A. A marine diatom-derived aldehyde induces apoptosis in copepod and sea urchin embryos. J Exp Biol. 2003;206:3487-94 pubmed
  35. Fallang A, Ramsay J, Sevatdal S, Burka J, Jewess P, Hammell K, et al. Evidence for occurrence of an organophosphate-resistant type of acetylcholinesterase in strains of sea lice (Lepeophtheirus salmonis Krøyer). Pest Manag Sci. 2004;60:1163-70 pubmed
    ..To our knowledge this is the first report of target-site resistance towards organophosphates in a third class of arthropods, the Crustacea...
  36. Jones S, Kim E, Dawe S. Experimental infections with Lepeophtheirus salmonis (Krøyer) on threespine sticklebacks, Gasterosteus aculeatus L., and juvenile Pacific salmon, Oncorhynchus spp. J Fish Dis. 2006;29:489-95 pubmed
    ..These results confirm previous field observations on the occurrence and development of L. salmonis on threespine sticklebacks...
  37. Willett C, Ladner J. Investigations of fine-scale phylogeography in Tigriopus californicus reveal historical patterns of population divergence. BMC Evol Biol. 2009;9:139 pubmed publisher
    ..Particularly lacking are data that can yield insights into population history from the finest scales of geographic resolution...
  38. Gustafsson K, Blidberg E, Elfgren I, Hellström A, Kylin H, Gorokhova E. Direct and indirect effects of the fungicide azoxystrobin in outdoor brackish water microcosms. Ecotoxicology. 2010;19:431-44 pubmed publisher
  39. Hansen B, Altin D, Vang S, Nordtug T, Olsen A. Effects of naphthalene on gene transcription in Calanus finmarchicus (Crustacea: Copepoda). Aquat Toxicol. 2008;86:157-65 pubmed
  40. Barreto F, Moy G, Burton R. Interpopulation patterns of divergence and selection across the transcriptome of the copepod Tigriopus californicus. Mol Ecol. 2011;20:560-72 pubmed publisher
    ..The library of T. californicus coding regions, annotated with their predicted functions and level of divergence, will serve as an invaluable resource for elucidating molecular mechanisms underlying the early stages of speciation...
  41. Kwok K, Leung K, Bao V, Lee J. Copper toxicity in the marine copepod Tigropus japonicus: low variability and high reproducibility of repeated acute and life-cycle tests. Mar Pollut Bull. 2008;57:632-6 pubmed publisher
    ..Given such a high reproducibility of toxic responses, it is advocated to use T. japonicus as a routine testing organism...
  42. Visser A, Kiørboe T. Plankton motility patterns and encounter rates. Oecologia. 2006;148:538-46 pubmed
  43. Kiørboe T. Optimal swimming strategies in mate-searching pelagic copepods. Oecologia. 2008;155:179-92 pubmed
    ..Sex ratios may become so female-biased that male abundances limit population growth, demonstrating that behaviours that are optimal to the individual may be suboptimal to the population...
  44. Jones S, Hargreaves N. Infection threshold to estimate Lepeophtheirus salmonis-associated mortality among juvenile pink salmon. Dis Aquat Organ. 2009;84:131-7 pubmed publisher
    ..The concept of a threshold of L. salmonis infection density may be used to assist in the management and conservation of juvenile pink salmon in the Broughton Archipelago region...
  45. Gharbi K, Glover K, Stone L, MacDonald E, Matthews L, Grimholt U, et al. Genetic dissection of MHC-associated susceptibility to Lepeophtheirus salmonis in Atlantic salmon. BMC Genet. 2009;10:20 pubmed publisher
    ..In this study, we used quantitative trait locus (QTL) analysis to test the effect of genomic regions linked to MHC class I and II on linkage groups (LG) 15 and 6, respectively...
  46. Fast M, Muise D, Easy R, Ross N, Johnson S. The effects of Lepeophtheirus salmonis infections on the stress response and immunological status of Atlantic salmon (Salmo salar). Fish Shellfish Immunol. 2006;21:228-41 pubmed
    ..The expression of nearly all immune-related genes studied here increased following initial infection with L. salmonis, however, immunological stimulation did not reduce parasite numbers or protect against re-infection...
  47. Frost P, Nilsen F. Validation of reference genes for transcription profiling in the salmon louse, Lepeophtheirus salmonis, by quantitative real-time PCR. Vet Parasitol. 2003;118:169-74 pubmed
    ..salmonis life cycle. Furthermore our results indicated that 18S RNA, although constitutively expressed, is not a convenient reference gene for relative quantification of most transcripts...
  48. Rey J, O Connell S, Suárez S, Menéndez Z, Lounibos L, Byer G. Laboratory and field studies of Macrocyclops albidus (Crustacea: Copepoda) for biological control of mosquitoes in artificial containers in a subtropical environment. J Vector Ecol. 2004;29:124-34 pubmed
    ..Additionally, M. albidus is relatively easy to culture, maintain, and deliver to the target areas...
  49. Heuch P, Olsen R, Malkenes R, Revie C, Gettinby G, Baillie M, et al. Temporal and spatial variations in lice numbers on salmon farms in the Hardanger fjord 2004-06. J Fish Dis. 2009;32:89-100 pubmed publisher
    ..Mean fish weight was significantly positively correlated with mean abundance of adult female lice...
  50. Lee Y, Kim I, Jung S, Lee J. Analysis of 686 expressed sequence tags (ESTs) from the intertidal harpacticoid copepod Tigriopus japonicus (Crustacea, Copepoda). Mar Pollut Bull. 2005;51:757-68 pubmed
    ..We are now preparing a T. japonicus cDNA chip for molecular ecotoxicological studies. In this paper, we discuss the potential use of T. japonicus ESTs and their importance in ecotoxicology...
  51. Amundrud T, Murray A. Modelling sea lice dispersion under varying environmental forcing in a Scottish sea loch. J Fish Dis. 2009;32:27-44 pubmed publisher
  52. Jones S, Fast M, Johnson S. Influence of reduced feed ration on Lepeophtheirus salmonis infestation and inflammatory gene expression in juvenile pink salmon. J Aquat Anim Health. 2008;20:103-9 pubmed publisher
    ..salmonis...
  53. Inouye S, Sahara Y. Identification of two catalytic domains in a luciferase secreted by the copepod Gaussia princeps. Biochem Biophys Res Commun. 2008;365:96-101 pubmed
    ..Thus, Gaussia luciferase has two catalytic domains for the luminescence reaction...