Search results for "Gobius niger"

showing 3 items of 3 documents

The trophic position of the Atlantic blue crab Callinectes sapidus Rathbun 1896 in the food web of Parila Lagoon (South Eastern Adriatic, Croatia): A…

2016

The Atlantic blue crab Callinectes sapidus is to date widely distributed in the Mediterranean Sea, where is recognized as an Invasive Alien Species. Noticeably, while records of its occurrence are increasing, quantitative information on its functional role in the benthic food webs of invaded coastal habitats are scarce. Here, carbon and nitrogen isotopic signatures were measured in C. sapidus and other representative taxa of the benthic flora and fauna sampled in summer in the Parila Lagoon, a coastal basin located in the Neretva River estuary area (Croatia). d 15 N values of individual blue crab specimens were used to calculate their trophic position (TP) , using the filter feeder mussel M…

0106 biological sciencesSettore BIO/07 - EcologiaEnvironmental EngineeringCallinectesFaunaPopulationGobius nigerCallinectes sapiduAquatic ScienceOceanography010603 evolutionary biology01 natural scienceslcsh:Aquaculture. Fisheries. Anglinginvasive speciesTrophic levelOntogenetic diet shiftInvasive species Callinectes sapidus food web trophic level ontogenetic diet shifteducationEcology Evolution Behavior and SystematicsTrophic levellcsh:SH1-691ontogenetic diet shift.education.field_of_studybiologyEcology010604 marine biology & hydrobiologyFilter feederInvasive specieFood webinvasive species Callinectes sapidus food web trophic level ontogenetic diet shiftbiology.organism_classificationFood webFisheryCallInectes sapidusBenthic zoneCallInectes sapidus food web trophic level ontogenetic diet shift.
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The Effect of Temporal Changes and Environmental Trophic Condition on the Isotopic Composition (omega13C and omega15N) of Atherina boyeri (Risso, 181…

2002

δ13C and δ15N of organic matter sources and consumers were employed to analyse trophic differentiation between a benthic consumer, Gobius niger (L., 1758) (Pisces, Osteichthyes), and a pelagic consumer, Atherina boyeri (Risso, 1810) (Pisces, Osteichthyes) in a Mediterranean coastal lagoon (Lake of Sabaudia) in winter and summer 1999. Trophic differences between the two species throughout the two sampling periods were related to the environmental trophic condition (i. e. nutrient and phytopigment concentrations). Although these two fish have different habitats, they both exploited benthic organisms, above all in summer. When the nutrient and phytopigment concentrations were higher (summer), …

Settore BIO/07 - EcologiaEcologybiologyEcologyfungiMedAtherina boyeriPelagic zoneGobius nigerAquatic ScienceCoastal lagoonbiology.organism_classificationStable isotopeEcology Evolution Behavior and SystematicZooplanktonFood webGobius nigerFisheryWater columnAtherina boyeriBenthic zoneEcology Evolution Behavior and SystematicsTrophic levelMarine Ecology
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Multiple chromosome polymorphism in the gobiid fish Gobius niger jozo L. 1758 (Pisces, Gobiidae).

1989

By analysing chromosome preparation from 42 Gobius niger jozo specimens from the Gulf of Palermo (Sicily), four different karyotypes were observed: A (2n=52; NF=60), B (2n=51; NF=60), C (2n=50; NF=60) and D (2n=49; NF=60). A chromosome polymorphism due to Robertsonian fusion is present in this species.

TeleosteiEcologyGeneticsZoologyAnimal Science and ZoologyKaryotypeCell BiologyPlant ScienceGobius nigerBiologybiology.organism_classificationCYTOLOGIA
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