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1.


   
    Phenotypic Plasticity and Allometry of Craniological Characters of Anadromous and Lacustrine Forms of Whitefish Coregonus lavaretus (Linnaeus, 1758) as an Indication of the Wrong Species Status of Coregonus pidschian / E. A. Borovikova, J. V. Kodukhova, A. V. Semenova // Contemp. Probl. Ecol. - 2020. - Vol. 13, Is. 6. - P620-630, DOI 10.1134/S1995425520060049. - Cited References:64. - This article was prepared with financial support from the Russian Science Foundation, grant no. 16-14-10001. . - ISSN 1995-4255. - ISSN 1995-4263
РУБ Ecology
Рубрики:
SALMON SALMO-SALAR
   SKULL MORPHOLOGY

   ARCTIC CHARR

   SEA

   L.

Кл.слова (ненормированные):
coregonid fish -- craniological features -- anadromous form -- lacustrine -- form -- plasticity -- allometry -- species status
Аннотация: The variability of craniological characters has been studied for anadromous and lacustrine forms of whitefish Coregonus lavaretus (Linnaeus, 1758) from waterbodies of the Karelian coast of the White Sea. The significant phenotypic plasticity of craniological characters of the whitefish depends on the environmental conditions. Moreover, there is a correlation between indexes of the craniological traits (except for the index of the snout length) and the body and/or head length (allometric effect). These results suggest that it is unreasonable to separate anadromous and lacustrine forms of C. lavaretus as distinct taxonomical units and argues for the invalidity of C. pidschian and C. oxyrinchus species.

WOS
Держатели документа:
Russian Acad Sci, Papanin Inst Biol Inland Waters, Borok 152742, Yaroslavl Oblas, Russia.
Russian Acad Sci, Inst Biophys, Siberian Branch, Akad Gorodok 50-50, Krasnoyarsk 660036, Russia.
Moscow MV Lomonosov State Univ, Fac Biol, Moscow 119234, Russia.

Доп.точки доступа:
Borovikova, E. A.; Kodukhova, J., V; Semenova, A., V; Russian Science FoundationRussian Science Foundation (RSF) [16-14-10001]

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2.


   
    A temperature dependence of the intra- and extracellular fatty-acid composition of green algae and cyanobacterium [Text] / N. N. Sushchik [et al.] // Russ. J. Plant Physiol. - 2003. - Vol. 50, Is. 3. - P. 374-380, DOI 10.1023/A:1023830405898. - Cited References: 31 . - ISSN 1021-4437
РУБ Plant Sciences
Рубрики:
SURFACE-FILM
   LIPIDS

   WATER

   BLOOM

   SEA

   BAY

Кл.слова (ненормированные):
green algae -- cyanobacterium -- lipids -- fatty acids -- secretion
Аннотация: The effect of ambient temperature on the composition of intracellular fatty acids and the release of free fatty acids (FFA) into a medium by cyanobacterium Spirulina platensis and eukaryotic microalgae, Chlorella vulgaris and Botryococcus braunii, was studied using their batch cultures. It was found that all the species studied, regardless of their taxonomic status, responded to the temperature regime by similar changes in their intracellular fatty acid composition: the relative content of more unsaturated fatty acids decreased with the elevation of temperature. At the same time, in the prokaryote, this temperature shift blocked, first of all, the elongation of 16:0 to 18:0 and then their further desaturation. In eukaryotes, the change in the desaturation of dienoic to trienoic fatty acids was the most pronounced process. The ratio of dienoic to trienoic fatty acids remained almost unchanged in S. platensis. The relative content of extracellular unsaturated FFA increased in the prokaryotic organism S. platensis at a higher temperature. But no significant changes in the composition of extracellular unsaturated FFA were detected in eukaryotic algae upon temperature elevation.

WOS
Держатели документа:
Russian Acad Sci, Siberian Div, Inst Biophys, Krasnoyarsk 660036, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Sushchik, N.N.; Kalacheva, G.S.; Zhila, N.O.; Gladyshev, M.I.; Volova, T.G.

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