Search results for "Margaritifera margaritifera"

showing 4 items of 4 documents

Variation in the COI gene of the freshwater pearl mussel Margaritifera margaritifera from River Vuokkijoki

2017

The freshwater pearl mussel Margaritifera margaritifera L. is one of the most endangered freshwater mussels in the world. Effective conservation of threatened species requires not only ecological, but also genetic information from the target species and populations. Since low genetic diversity can reduce the ability of a species to adapt to environmental changes, maintaining genetic diversity has been identified as one of the key elements in successful conservation programs. We examined genetic variation of the freshwater pearl mussel from the River Vuokkijoki, Karelia, Russia. We sequenced a fragment of the cytochrome c oxidase subunit I gene (COI) from 22 individuals and compared the data…

0106 biological sciences0301 basic medicinehaplotypescytochrome c oxidase subunit I gene (COI)PopulationEndangered species010603 evolutionary biology01 natural sciencesGeneral Biochemistry Genetics and Molecular Biology03 medical and health sciencesfreshwater pearl musselGenetic variationeducationMargaritiferaVuokkijokieducation.field_of_studyGenetic diversitybiologyEcologyCytochrome c oxidase subunit Ifungigenetic diversitybiology.organism_classification030104 developmental biologyMargaritifera margaritiferaFreshwater pearl musselThreatened speciesta1181General Agricultural and Biological Sciences
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Latvijas ūdeņu vides pētījumi un aizsardzība: LU Bioloģijas fakultātes Hidrobioloģijas katedras sekcijas referātu tēžu krājums (Rīga, 2012. gada 24. …

2012

Krājumā ievietotās LU 70.konferences LU Bioloģijas fakultātes Hidrobioloģijas katedras sekcijas referātu tēzes nav recenzētas.

AļgesStraujteču kvalitāte:NATURAL SCIENCES::Earth sciences::Atmosphere and hydrosphere sciences::Hydrology [Research Subject Categories]MakrobentossZooplanktonsŪdens toksicitāteUpes biocenotiskā struktūraBiezā perlamutrene UNIO CRASSUSUpespērlene MARGARITIFERA MARGARITIFERAEzera limnoloģiskā izpēteFitoplanktonsGruntsūdeņiZivisSēravotiIhtiofaunaGliemenesŪdens blīvuma dinamika
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Upespērlenes Latvijā

2022

Virtuālajā izstādē "Upespērlenes Latvijā" stāstīts par 2022. gada gliemeni - ziemeļu upespērleni Margaritifera margaritifera, tās populāciju Latvijā, attīstības ciklu, ekoloģiskajiem apdraudējumiem un aizsardzības iespējām.

:NATURAL SCIENCES::Biology::Terrestrial freshwater and marine ecology::Freshwater ecology [Research Subject Categories]ekoloģijaMargaritifera margaritiferagliemenesupespērlenes
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Ethanol preservation effects on stable carbon, nitrogen and hydrogen isotopes in the freshwater pearl mussel

2023

AbstractChemical preservatives can alter stable isotope ratios in animal tissues. The effects of preservation on δ13C and δ15N values have been investigated in a variety of species, but not on δ2H values or on the freshwater pearl mussel (FPM, Margaritifera margaritifera) tissues. We evaluated the effect of ethanol preservation (unpreserved vs preserved tissues) over 6 months on the δ13C, δ15N and δ2H values of FPM foot and gonad tissues. Ethanol preservation significantly increased δ13C values (foot 0.4 ‰; gonad 0.3 ‰), whereas it did not significantly affect δ15N values (foot 0.2 ‰; gonad − 0.1 ‰). The positive effect of ethanol preservation on δ2H values (foot 7.1 ‰; gonad 14.5 ‰) and th…

lipidsMargaritifera margaritiferaetanoliisotooppianalyysistable isotope analysisethanol storageAquatic SciencelipiditdeuteriumN ratio [C]jokihelmisimpukka
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