Search results for "Symphodus"

showing 8 items of 18 documents

Climate change and genetic structure of leading edge and rear end populations in a northwards shifting marine fish species, the corkwing wrasse (Symp…

2013

Published version of an article in the journal:PLoS ONE. Also available from the Public Library of Science: http://dx.doi.org/10.1371/journal.pone.0067492 Open Access One mechanism by which marine organisms may respond to climate shifts is range shifts. The corkwing wrasse (Symphodus melops) is a temperate fish species, inhabiting the coasts of Europe, that show strong indications of current as well as historical (ice-age) range shifts towards the north. Nine neutral microsatellite DNA markers were screened to study genetic signatures and spatial population structure over the entire geographic and thermal gradient of the species from Portugal to Norway. A major genetic break (FST  = 0.159 a…

Gene FlowLeading edgeVDP::Mathematics and natural science: 400::Geosciences: 450::Meteorology: 453Climate Changelcsh:MedicineClimate changePopulation geneticsMarine and Aquatic SciencesMarine BiologyBioinformaticsOceanographyDNA MitochondrialOceansVDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Fish health: 923GeneticsAnimalslcsh:ScienceBiologyVDP::Agriculture and fishery disciplines: 900::Fisheries science: 920Evolutionary BiologyMultidisciplinarybiologyEcologyPopulation Biologylcsh:RMarine EcologyFishesMarine fishGenetic Variationbiology.organism_classificationSymphodusFisheryGenetics PopulationGenetic structureEarth Scienceslcsh:QNorth SeaMarine GeologyZoologyCorkwing wrasseIchthyologyCoastal EcologyResearch ArticleMicrosatellite Repeats
researchProduct

Embryonic development in corkwing wrasse, Symphodus melops

2019

Corkwing wrasse, Symphodus melops, is one of the main species used as cleaner fish to combat sea lice infestation in salmon aquaculture; however, there is little knowledge about its biology. Here, we describe the embryonic development of this species and examine the viability of the eggs under three temperature regimes. The experiments were conducted at three water temperature regimes, 12, 15, and 18°C, which resemble common sea water temperatures registered during the spawning season of corkwing wrasse at different latitudes along the Norwegian coast. Corkwing wrasse spawn small spherical eggs of 0.75–0.80 mm in diameter (mean 0.78, CV = 3.6%) with several oil droplets and go through eight…

HatchingFishingAquatic ScienceBiologyCleaner fishbiology.organism_classificationmedicine.disease_causeSpawn (biology)SymphodusFisheryInfestationmedicineVDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Embryologi: 482Salmon aquacultureAgronomy and Crop ScienceVDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920Corkwing wrasseVDP::Mathematics and natural science: 400::Zoology and botany: 480::Embryology: 482
researchProduct

Seawater carbonate chemistry and nest guarding behaviour of a temperate wrasse

2021

Organisms may respond to changing environmental conditions by adjusting their behaviour (i.e., behavioural plasticity). Ocean acidification (OA), resulting from anthropogenic emissions of carbon dioxide (CO2), is predicted to impair sensory function and behaviour of fish. However, reproductive behaviours, and parental care in particular, and their role in mediating responses to OA are presently overlooked. Here, we assessed whether the nesting male ocellated wrasse Symphodus ocellatus from sites with different CO2 concentrations showed different behaviours during their breeding season. We also investigated potential re-allocation of the time-budget towards different behavioural activities b…

Ocean Acidification International Coordination Centre (OA-ICC)IdentificationPotentiometric titrationRegistration number of speciesSalinityTemperateCalcite saturation statePotentiometricinorganicwaterAlkalinitySiteTemperature waterCarbon inorganic dissolvedUniform resource locator/link to referenceCalculated using seacarb after Nisumaa et al 2010Mediterranean SeaOcean Acidification International Coordination Centre OA ICCAnimaliaAragonite saturation stateBehaviourBicarbonate ionTime in secondsTypeNektonAlkalinity totalChordataCalculated using seacarb after Nisumaa et al. (2010)totalCO2 ventSpeciespHPelagosSymphodus ocellatusTemperatureCarbonate system computation flagdissolvedFugacity of carbon dioxide (water) at sea surface temperature (wet air)Carbonate ionPartial pressure of carbon dioxide (water) at sea surface temperature (wet air)CarbonPartial pressure of carbon dioxide water at sea surface temperature wet airCarbon dioxideSingle speciesEarth System ResearchFugacity of carbon dioxide water at sea surface temperature wet airCoast and continental shelfField observationUniform resource locator link to reference
researchProduct

Seawater carbonate chemistry and somatic and otolith growth relationship of Symphodus ocellatus

2019

Ocean acidification (OA) may have varied effects on fish eco-physiological responses. Most OA studies have been carried out in laboratory conditions without considering the in situ pCO2/pH variability documented for many marine coastal ecosystems. Using a standard otolith ageing technique, we assessed how in situ ocean acidification (ambient, versus end-of-century CO2 levels) can affect somatic and otolith growth, and their relationship in a coastal fish. Somatic and otolith growth rates of juveniles of the ocellated wrasse Symphodus ocellatus living off a Mediterranean CO2 seep increased at the high-pCO2 site. Also, we detected that slower-growing individuals living at ambient pCO2 levels …

Ocean Acidification International Coordination Centre (OA-ICC)TemperateRegistration number of speciesIdentificationSalinityinorganicAlkalinityExperimentTemperature waterCarbon inorganic dissolvedCalculated using seacarb after Nisumaa et al 2010Aragonite saturation stateChordataAlkalinity totaltotalCO2 ventTime in dayspHPelagosSymphodus ocellatusTemperaturedissolvedLength totalCarbonate ionPartial pressure of carbon dioxide (water) at sea surface temperature (wet air)Temperature water standard deviationEarth System Researchstandard deviationField observationUniform resource locator link to referencePotentiometric titrationCalcite saturation stateLengthPotentiometricwaterPartial pressure of carbon dioxideSiteGrowth MorphologyAgeUniform resource locator/link to referenceSalinity standard deviationOcean Acidification International Coordination Centre OA ICCMediterranean SeaAnimaliaTypeSampling dateBicarbonate ionNektonCalculated using seacarb after Nisumaa et al. (2010)SpeciesCalculated using CO2SYSPartial pressure of carbon dioxide standard deviationCarbonate system computation flagpH standard deviationFugacity of carbon dioxide (water) at sea surface temperature (wet air)CarbonPartial pressure of carbon dioxide water at sea surface temperature wet airCarbon dioxideGrowth/MorphologySingle speciesFugacity of carbon dioxide water at sea surface temperature wet airsense organs
researchProduct

Nest building in a Mediterranean wrasse (Symphodus ocellatus): are the algae used randomly chosen or actively selected?

2014

To increase their reproductive success, fish species have evolved various strategies, including both simple processes and more complex mechanisms that involve parental care by nest-building. In Symphodus ocellatus, a species that lives in rocky infralittoral zones of the Mediterranean Sea, during the reproductive period, the male builds a nest within a hole or crevice using fragments of algae and/or sand particles. Data on the nesting activity of wrasses are rare, and previous descriptions regarding the algal composition of nests have provided conflicting results. In this regard, it is unclear whether territorial males actively select algal species for nest construction or algal choice is r…

Settore BIO/07 - EcologiaSymphodus ocellatusEcologybiologyReproductive successEcologyNest-buildingJania rubensnestbuildingAlgal selectionAquatic Sciencebiology.organism_classificationJania rubensNestAlgaeHabitatJania rubenWrasseLabridaePaternal careEcology Evolution Behavior and Systematics
researchProduct

Effects of ocean acidification on embryonic respiration and development of a temperate wrasse living along a natural CO2 gradient

2016

Volcanic CO2 seeps provide opportunities to investigate the effects of ocean acidification on organisms in the wild. To understand the influence of increasing CO2 concentrations on the metabolic rate (oxygen consumption) and the development of ocellated wrasse early life stages, we ran two field experiments, collecting embryos from nesting sites with different partial pressures of CO2 [pCO2; ambient (400 µatm) and high (800-1000 µatm)] and reciprocally transplanting embryos from ambient- to high-CO2 sites for 30 h. Ocellated wrasse offspring brooded in different CO2 conditions had similar responses, but after transplanting portions of nests to the high-CO2 site, embryos from parents that sp…

StageOcean Acidification International Coordination Centre (OA-ICC)TemperateRegistration number of speciesSalinityinorganicYolk area standard errorAlkalinityExperimentTemperature waterCarbon inorganic dissolvedCalculated using seacarb after Nisumaa et al 2010Aragonite saturation stateRespiration rate oxygenChordataAlkalinity totaltotalCO2 ventpHPelagosReproductionRespirationSymphodus ocellatusTemperatureYolk areadissolvedCarbonate ionPartial pressure of carbon dioxide (water) at sea surface temperature (wet air)Field experimentTemperature water standard deviationTime pointstandard errorRespiration rateEarth System Researchstandard deviationFOS: Medical biotechnologyUniform resource locator link to referenceTime point descriptiveHatchling lengthCalcite saturation statewaterPartial pressure of carbon dioxidedescriptiveGrowth MorphologyFigureUniform resource locator/link to referenceSalinity standard deviationOcean Acidification International Coordination Centre OA ICCMediterranean SeaAnimaliaEggs areaTypeBicarbonate ionNektonEggs area standard errorCalculated using seacarb after Nisumaa et al. (2010)SpeciesPartial pressure of carbon dioxide standard deviationCarbonate system computation flagpH standard deviationHatchling length standard errorFugacity of carbon dioxide (water) at sea surface temperature (wet air)CarbonTreatmentOxygenPartial pressure of carbon dioxide water at sea surface temperature wet airCarbon dioxideGrowth/MorphologySingle speciesOxygen standard deviationFugacity of carbon dioxide water at sea surface temperature wet airCoast and continental shelf
researchProduct

Data from: Cleaner fish escape salmon farms and hybridize with local wrasse populations

2018

The genetic impact of farmed fish escaping aquaculture is a highly debated issue. However, non-target species, such as cleaner fish used to remove sea lice from farmed fish, are rarely considered. Here we report that wild corkwing wrasse (Symphodus melops), which are transported long distances to be used as cleaner fish in salmon farms, escape and hybridize with local populations. Recently, increasing numbers of corkwing wrasse have been reported in Flatanger in Norway, north of its described distribution range, an area heavily relying on import of cleaner fish from Skagerrak. Using genetic markers identified with 2bRAD sequencing, we show that, although the Flatanger population largely is …

medicine and health care2bRADSymphodus melopsLabridaeMedicineRADsalmonWrasseSea liceAquacultureCrenilabrus melopsLife sciences
researchProduct

Data from: Habitat discontinuities separate genetically divergent populations of a rocky shore marine fish

2017

Habitat fragmentation has been suggested to be responsible for major genetic differentiations in a range of marine organisms. In this study, we combined genetic data and environmental information to unravel the relative role of geography and habitat heterogeneity on patterns of genetic population structure of corkwing wrasse (Symphodus melops), a rocky shore species at the northern limit of its distribution range in Scandinavia. Our results revealed a major genetic break separating populations inhabiting the western and southern coasts of Norway. This genetic break coincides with the longest stretch of sand in the whole study area, suggesting habitat fragmentation as a major driver of genet…

medicine and health careSymphodus melopsparasitic diseasesfungiLife SciencesMedicinegenetic breakhabitat fragmentationcorkwing wrasse
researchProduct