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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Zadereev E.S.
Заглавие : Chemical interactions between planktonic crustaceans
Колич.характеристики :9 с
Место публикации : Zhurnal Obshchei Biol.: MEZHDUNARODNAYA KNIGA, 2002. - Vol. 63, Is. 2. - P159-167. - ISSN 0044-4596
Примечания : Cited References: 52
Предметные рубрики: DIEL VERTICAL MIGRATION
DAPHNIA-MAGNA CRUSTACEA
SEX DETERMINATION
COLONY FORMATION
CLADOCERA
FISH
RESPONSES
PULEX
WATER
SCENEDESMUS
Аннотация: Three levels of chemical communications involved plankton Crustacea are considered: 1) Influence of zooplankton excretion on phytoplankton; 2) Influence of zooplankton excretion on the individuals of the same or other species of the same trophic level; 3) Influence of chemical cues released by predatory zooplankton and fish on herbivorous zooplankton. The data on the influence of excreted cues on some physiological (growth, reproduction, feeding, etc.) and behavioural (vertical and horizontal migrations) characters of planktonic crustaceans are presented. Ecological role and chemistry cues responsible for the interactions of different trophic levels can be different. It is considered that chemical communications in aquatic ecosystems can be provided with: 1) Species-specific cues that strictly influence particular biological functions (communication system of feromone type); 2) Non-specific cues that strictly influence particular functions (system of regulator, that act at the whole ecosystem as the hormonal system of an organism). 3) Non-specific substances with broad (nonspecific) influence-toxic substances of "biocondition substances" according to classification of Novikov and Kharlamova (2000).
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kalacheva G.S., Zadereev E.S., Gubanov V.G., Gribovskaya I.V.
Заглавие : Chemical composition of water conditioned by crowded Moina macracopa (Crustacea : Cladocera)
Колич.характеристики :5 с
Место публикации : Russ. J. Ecol.: MAIK NAUKA/INTERPERIODICA, 2000. - Vol. 31, Is. 2. - P113-117. - ISSN 1067-4136, DOI 10.1007/BF02828365
Примечания : Cited References: 25
Предметные рубрики: DAPHNIA-PULEX
ZOOPLANKTON
PARAMETERS
INDUCTION
Ключевые слова (''Своб.индексиров.''): cladocera--metabolic products--chemical analysis--chemical composition
Аннотация: The chemical composition of water conditioned by colonies of Moina macrocopa and involved in the regulation of their life cycle was analyzed in comparison with water samples from natural water bodies. Dechlorinated tap water was used as the control medium. The results showed that metabolism of crustaceans leads to an increase in the concentrations of phosphorus and nitrogen in all forms, the appearance of protein and carbohydrate fractions, and changes in the composition of lipid fractions in the water conditioned by their colonies. The contents of all organic components are very low, which makes their identification difficult. Concentrations of substances identified in the conditioned water do not exceed those occurring in nature.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Zadereev E.S., Prokopkin I.G., Gubanov V.G., Gubanov M.V.
Заглавие : Individual-based model of the reproduction cycle of Moina macrocopa (Crustacea : Cladocera)
Колич.характеристики :17 с
Место публикации : Ecol. Model.: ELSEVIER SCIENCE BV, 2003. - Vol. 162, Is. 01.02.2013. - P15-31. - ISSN 0304-3800, DOI 10.1016/S0304-3800(02)00348-4
Примечания : Cited References: 25
Предметные рубрики: POPULATION
ZOOPLANKTON
FEMALES
WATER
Ключевые слова (''Своб.индексиров.''): individual-based model--cladocera--change of reproduction mode--metabolic by-products
Аннотация: An individual-based model of cyclic development of Cladocera populations was developed on the basis of experimental data. The model takes into account the following processes describing the development of an individual animal: maturation, transition into other reproductive classes, selection of the reproduction mode (parthenogenetic or gamogenetic), release of parthenogenetic progeny and death. The model assumes that switching from asexual to sexual reproduction is controlled by the concentration of food and metabolic by-products of the animal population. Verification of the model by independent experiments demonstrated that (1) during population growth, metabolic by-products build up in the medium, and (2) the effect of metabolic by-products on gamogenesis induction depends on concentration. The hypothesis that the effect of regulating reproductive switching factors should synchronise the development of population with the change of environmental conditions in order to ensure production of the maximum number of diapausing eggs was tested. It is shown that combination of regulating reproductive switching factors maximises the production of diapausing eggs. (C) 2002 Elsevier Science B.V. All rights reserved.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Zadereev Y.S.
Заглавие : Maternal effects, conspecific chemical cues, and switching from parthenogenesis to gametogenesis in the cladoceran Moina macrocopa
Колич.характеристики :6 с
Место публикации : Aquat. Ecol.: KLUWER ACADEMIC PUBL, 2003. - Vol. 37, Is. 3. - P251-255. - ISSN 1386-2588, DOI 10.1023/A:1025850417717
Примечания : Cited References: 19
Предметные рубрики: POPULATION-DENSITY
DAPHNIA-MAGNA
CRUSTACEA
REPRODUCTION
DIAPAUSE
Ключевые слова (''Своб.индексиров.''): adaptation--cladocera--chemical signals--gametogenesis induction--maternal control
Аннотация: The change in reproductive mode from parthenogenesis to gametogenesis in Cladocera is controlled by multiple environmental cues. Maternal effects are involved in the control of reproductive switching. In this study, we estimated the readiness of Moina macrocopa females to change reproduction mode under the effect of conspecific chemicals on maternal and offspring generations. The results demonstrated that information about the chemical environment was not transmitted between generations (none of the females produced diapausing eggs in the control medium irrespective of their mothers' environment). Differences in maternal energetic investments were not significant, hence the maternal environment did not affect the fecundity. However, tested animals adapted to the effect of the diapause inducing factor. When offspring of mothers cultured in crowded water were also cultured in crowded water (the constant effect of conspecific chemicals), they switched less readily to gametogenesis than offsprings of mothers cultured in fresh medium.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Колмаков В.И., Гладышев М.И., Дубовская О.П., Левин Л.А., Гаевский Н.А., Иванова Е.А.
Заглавие : Влияние зоопланктона на интенсивность "цветения" малых эвтрофных водоемов : научное издание
Место публикации : 5 Всероссийская конференция по водным растениям "Гидроботаника 2000", Борок, 10-13 окт., 2000. - Борок, 2000. - С. 36-37
ГРНТИ : 34.29.15
Предметные рубрики: ФИТОПЛАНКТОН
РАЗВИТИЕ
ЗООПЛАНКТОН
ВЛИЯНИЕ
Аннотация: Изучали водорослевые спектры питания Daphnia longispina O. F. Muller (Crustacea, Cladocera), доминантного вида зоопланктона пруда Бугач, в периоды "цветения" воды. Для этого использован дифференциально-проточный метод в сочетании с флуоресцентным анализом, позволяющим регистрировать популяционный рост. Мелководья Шекснинского и Волжского плесов характеризовались близкими величинами численности (8336'+-'6183 и 5505'+-'8358 кл./мл) и биомассы (8,4'+-'7,0 и 6,5'+-'9,2 мг/м{3}) АПП. В этих плесах отмечены клетки наибольшего объема - 1,15 и 2,23 мкм{3}, численность к-рых была минимальной. Так, в Волжском плесе численность клеток объемом 4,19 мкм{3} составляла лишь 187 кл./мл. В составе АПП повсеместно встречались мелкие одиночные клетки и колонии, включающие от 13 до 1400 клеток. Пространственное распределение и тех, и других по акватории водохранилища было сходным, средняя численность колебалась от 13 349'+-'12 971 на станциях центральной части Главного плеса до 337 036'+-'433 688 кл/мл в приплотинном участке. D. longispina не потребляла вызывающих "цветение" Aphanizomenon flos-aquae (L.) Ralfs и Microcystis aeruginosa (Kutz.) emend Elenk. При массовом развитии A. flos-aquae дафния исключала микроводоросли из своего рациона, а при вегетации M. aeruginosa избирательно потребляла Cryptomonas erosa Ehr и Cyclotella comta Kutz. Стимулирующего влияния экскреторных и интактных выделений D. longispina на фотосинтетическую активность синезеленых водорослей не обнаружено
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Zadereev E.S., Gubanov V.G., Egorov I.V.
Заглавие : The influence of food concentration and "water of aggregation" on the reproductive parameters of Moina macrocopa (Crustacea: Cladocera) females
Место публикации : Zhurnal Obshchei Biologii. - 1998. - Vol. 59, Is. 1. - С. 55-57. - ISSN 00444596 (ISSN)
Аннотация: Combined influence of "water of aggregation" and food concentration on the reproductive parameters of Moina macrocopa females was investigated. In all experiments the influence of population density was associated with the effect of "water of aggregation" prepared earlier by keeping dense population (200 ?g/ml) of M. macrocopa. It was shown that life-span of M. macrocopa females in "water of aggregation" was not dependent on food concentration; under conditions of all tested food concentration it was less than in case of control clean water. There was no difference in proportion of males produced in "water of aggregation" and in control though more males were born under conditions of higher food concentration. In general "water of aggregation" causes a specific acceleration of female life history: the life-span and the period between clutches decrease, the amount of neonates in last clutches increases while the chance of male production at the beginning of reproduction period becames greater. The "water of aggregation" could also causes the formation of ephipial eggs instead of the first partenogenetic clutch. It seems that life strategy under conditions of very high mortality associated with "water of aggregation" is aimed to maximum realization of individual capacities in short period of time.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Zadereev E.S., Gubanov V.G., Egorov I.V.
Заглавие : The influence of food concentration and "water aggregation" on the reproductive parameters of Moina macrocopa (Crustacea : Cladocera) females
Колич.характеристики :13 с
Место публикации : Zhurnal Obshchei Biol.: MEZHDUNARODNAYA KNIGA, 1998. - Vol. 59, Is. 1. - P45-57. - ISSN 0044-4596
Примечания : Cited References: 27
Предметные рубрики: DAPHNIA-MAGNA
EGG SIZE
DENSITY
POPULATION
INDUCTION
PULEX
Аннотация: Combined influence of "water of aggregation" and food concentration on the reproductive parameters of Moina macrocopa females was investigated. In all experiments the influence of population density was associated with the effect of "water of aggregation" prepared earlier by keeping dense population (200 mu g/ml) of M. macrocopa. It was shown that life-span of M. macrocopa females in "water of aggregation" was not dependent on food concentration; under conditions of all tested food concentration it was less than in case of control clean water. There was no difference in proportion of males produced in "water of aggregation" and in control though more males were born under conditions of higher food concentration. In general "water of aggregation" causes a specific acceleration of female life history: the life-span and the period between clutches decrease, the amount of neonates in last clutches increases while the chance of male production at the beginning of reproduction period becames greater. The "water of aggregation" could also causes the formation of ephipial eggs instead of the first partenogenetic clutch. It seems that life strategy under conditions of very high mortality associated with "water of aggregation" is aimed to maximum realization of individual capacities in short period of time.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Zadereev Y.S., Gubanov V.G.
Заглавие : Density dependent regulation of the reproduction cycle of Moina macrocopa (Cladocera)
Колич.характеристики :7 с
Место публикации : BIODIVERSITY CRISIS AND CRUSTACEA. Ser. CRUSTACEAN ISSUES: A A BALKEMA PUBLISHERS, 2000. - Vol. 12: 4th International Crustacean Congress (JUL 20-24, 1998, AMSTERDAM, NETHERLANDS). - С. 535-541. - ISBN 0168-6356. - ISBN 90-5410-478-3
Примечания : Cited References: 19
Предметные рубрики: DAPHNIA-PULEX
ZOOPLANKTON
MAGNA
Аннотация: The allelopathic effect of population density on gametogenesis induction of Moina macrocopa (Crustacea: Cladocera) was investigated at varying food concentration, photoperiod, and temperature. The presence of the non-trophic effect of population density on gametogenesis induction was demonstrated. The experiments with single females have shown that if the photoperiod, temperature, and food concentration are favorable for parthenogenesis, the crowding water has the effect of stimulating females into changing the reproduction mode. This effect was enhanced by using a higher density of the population to achieve crowding. The change of reproduction mode occurs in the experiments with populations of M. macrocopa with the achievement of food availability favorable for the parthenogenesis of single females. Chemical interactions between animals are the most obvious explanation for the obtained results.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Fefilova, Elena, Dubovskaya, Olga, Kononova, Olga, Frolova, Larisa, Abramova, Ekaterina, Nigamatzyanova, Gulnara
Заглавие : Data on taxa composition of freshwater zooplankton and meiobenthos across Arctic regions of Russia
Колич.характеристики :7 с
Коллективы : Institute of Biophysics of the Federal Research Center "Krasnoyarsk Science Center" of the Siberian Branch of the Russian Academy of Sciences [51.1.1]; Siberian Federal University [FSRZ-2020-0006]; Russian Science FoundationRussian Science Foundation (RSF) [20-17-00135]; Kazan Federal University [671-2020-0049]; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [18-05-00406]; Russian Foundation for Basic Research (RFBR)Russian Foundation for Basic Research (RFBR) [20-04-00145_a]
Место публикации : Data Brief: ELSEVIER, 2021. - Vol. 36. - Ст.107112. - ISSN 2352-3409, DOI 10.1016/j.dib.2021.107112
Примечания : Cited References:17. - The work was performed in part as Federal Tasks to the Department of Animal Ecology of the Institute of Biology of Komi Science Centre of the Ural Branch of the Russian Academy of Sciences (AAAA-A17-117112850235-2) (to EF and OK), to the Institute of Biophysics of the Federal Research Center "Krasnoyarsk Science Center" of the Siberian Branch of the Russian Academy of Sciences (project No. 51.1.1) and the Siberian Federal University (project No. FSRZ-2020-0006) (to OD). The paleolimnological part of this work was supported by grant from Russian Science Foundation (project 20-17-00135). L. Frolova and G. Nigamatzyanova were supported by the subsidy allocated to Kazan Federal University for the state assignment #671-2020-0049 in the sphere of scientific activities and by the Russian Foundation for Basic Research (grant 18-05-00406). The work was partly financially supported by the Russian Foundation for Basic Research (RFBR) grant: 20-04-00145_a (to EF). Monitoring investigations in the Lena River Delta were conducted under the framework of Russian-German, "Lena" expeditions (Alfred Wegener Institute, Potsdam, Germany) with logistic and technical support of Scientific Research Station "Samoylov Island" (the Trofimuk Institute of Petroleum-Gas, Geology and Geophysics SB RAS, Novosibirsk) (to EA).
Предметные рубрики: CRUSTACEA
RECORDS
LAKES
Аннотация: We present the presence/absence species list (Table 1) of rotifer, cladoceran, and copepod (Calanoida, Harpacticoida, and Cyclopoida) fauna from seven Arctic regions of Russia (the Kola Peninsula, the Pechora River Delta, the Bolshezemelskaya tundra, the Polar Ural, the Putorana Plateau, the Lena River Delta, and the Indigirka River Basin) based on our own and literature data. Our own records were obtained by analyzing samples of zooplankton, meiobenthos, and two cores of bottom sediments (from the Kola Peninsula and the Bolshezemelskaya tundra lakes) that we collected once in July or August in 1992, 1995-2017. To supplement the list, we used relevant literature with periods of research from the 1960s to the 2010s. The list is almost identical to "Dataset 2: Zooplankton and Meiofauna across Arctic Regions of Russia", which was analyzed but not published in [1]. The detailed analysis of this list revealed the specific composition of the aquatic fauna associated with the climatic and geographical factors [1]. The data provide information on the current state of biodiversity and species richness in Arctic fresh waters and can serve as the basis for monitoring these environments and predicting how they are likely to change in the future. (C) 2021 The Author(s). Published by Elsevier Inc.
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Feniova I., Sakharova E., Karpowicz M., Gladyshev M. I., Sushchik N. N., Dawidowicz P., Gorelysheva Z., Gorniak A., Stroinov Y., Dzialowski A.
Заглавие : Direct and indirect impacts of fish on crustacean zooplankton in experimental mesocosms
Место публикации : Water: MDPI AG, 2019. - Vol. 11, Is. 10. - Ст.2090. - ISSN 20734441 (ISSN) , DOI 10.3390/w11102090
Аннотация: Understanding the factors that regulate phytoplankton and zooplankton is an important goal of aquatic ecologists; however, much remains unknown because of complex interactions between phytoplankton, zooplankton, and fish. Zooplankton, in particular cladocerans, can be regulated by bottom-up factors either via food quantity or food quality in terms of polyunsaturated fatty acids (PUFA) or phosphorus (P) contents in phytoplankton. Fish can recycle nutrients and in turn change the PUFA and P contents of algal resources, thus modifying bottom-up regulation. Furthermore, fish can change phytoplankton structure through consumption of cladocerans which selectively graze phytoplankton. We conducted a mesocosm (300 L) experiment to determine how trophic state and fish affected crustacean dynamics. The mesocosms were filled with water containing natural plankton from the eutrophic Lake Jorzec and mesotrophic Lake Majcz (Northeastern Poland), and we manipulated fish presence/absence. We also conducted a complementary life-table experiment to determine how trophic state and fish nonconsumptively affected demographic parameters of the dominant cladocerans in the mesocosms. Small and large cladoceran species responded differently to food quantity and quality. Small-bodied Ceriodaphnia were regulated mainly by resource concentrations (i.e., food quantity), while large species were limited by PUFAs (i.e., food quality). Fish likely increased food quality in terms of PUFA, primarily eicosapentaenoic acids (EPA), thus providing conditions for more successful development of Daphnia than in the fish-free treatments. Phosphorus in the seston was likely limiting for zooplankton. However, food quality in terms of phosphorus was likely less important than PUFA because zooplankton can accumulate nutrients in their body. © 2019 by the authors.
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11.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gusakov V. A., Makhutova O. N., Gladyshev M. I., Golovatyuk L. V., Zinchenko T. D.
Заглавие : Ecological role of cyprideis torosa and heterocypris salina (Crustacea, ostracoda) in saline rivers of the lake elton basin: Abundance, biomass, production, fatty acids
Место публикации : Zool. Stud.: Biodiversity Research Center, Academia Sinica, 2021. - Vol. 60. - С. 60-53. - ISSN 10215506 (ISSN), DOI 10.6620/ZS.2021.60-53
Аннотация: Saline rivers are highly productive ecosystems in arid regions. The meiobenthic community (bottom meiofauna) and its dominant representatives are one of the least studied components of these aquatic ecosystems. Ostracods Cyprideis torosa and Heterocypris salina are major consumers among the species of bottom meiofauna in saline rivers flowing into the hyperhaline Lake Elton (Volgograd Region, Russia). We estimated the abundance, biomass and production of C. torosa, the dominant species at the mouth of the polyhaline Chernavka River (average salinity is ~30 g l-1), and H. salina, the dominant species at the mouth of the mesohaline Bolshaya Samoroda River (~13 g l-1), in spring (May) and summer (August). Additionally, we studied the composition and content of fatty acids of the ostracods and their potential food sources (bottom sediments with bacterial-algal mats). We found that the abundance and biomass (wet weight with shells) of C. torosa in the Chernavka River and H. salina in the Bolshaya Samoroda River reached 3.5 ? 106 ind. m-2 and 117 g m-2, and 1.1 ? 105 ind. m-2 and 12 g m-2, respectively. The first species formed on average about 85% of the total abundance and 96% of the total biomass of the meiobenthos, and the second one, about 13% and 31%, respectively. The daily production of C. torosa and H. salina can reach 249 and 36 mg m-2 ash-free dry weight, respectively. The results indicate that these species may play an important role in the total flow of matter and energy in the studied habitats. Based on the fatty acid (FA) composition of the ostracods and their food sources, it was found that C. torosa mainly consumed diatoms, while H. salina preferred bacteria, cyanobacteria, and green algae. Differences between the species were greater than differences between the bottom sediments from the rivers. It may mean that the ostracods selectively consumed different food items that may be related to the different nutrient requirements of the species. Seasonal changes in the FA compositions of the ostracods were higher than in their food sources (bottom sediments), which also indicates selective feeding of the species. © 2021 Academia Sinica, Taiwan.
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12.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gusakov, Vladimir A., Makhutova, Olesia N., Gladyshev, Michail I., Golovatyuk L. V., Zinchenko, Tatiana D.
Заглавие : Ecological Role of Cyprideis torosa and Heterocypris salina (Crustacea, Ostracoda) in Saline Rivers of the Lake Elton Basin: Abundance, Biomass, Production, Fatty Acids
Колич.характеристики :16 с
Коллективы : Russian Foundation for Basic Research (RFBR)Russian Foundation for Basic Research (RFBR) [13-04-00740, 15-04-03341, 17-04-00135]; Russian FederationRussian Federation [51.1.1]; Ministry of Science and Higher Education of the Russian Federation [FSRZ-2020-0006]
Место публикации : Zool. Stud.: BIODIVERSITY RESEARCH CENTER, ACAD SINICA, 2021. - Vol. 60. - Ст.53. - ISSN 1021-5506, DOI 10.6620/ZS.2021.60-53. - ISSN 1810-522X(eISSN)
Примечания : Cited References:84. - This research was performed in the framework of State Assignments No. 121051100109-1 and AAAA-A17-117112040039-7, and it was also supported by the grants from Russian Foundation for Basic Research (RFBR) (projects numbers 13-04-00740, 15-04-03341, 17-04-00135), State Assignment within the framework of the basic research program of the Russian Federation (topic No. 51.1.1), State Assignment of the Ministry of Science and Higher Education of the Russian Federation to Siberian Federal University in 2020 (project No. FSRZ-2020-0006 "Biologically active substances in environmental, biotechnological and medical systems"). The authors are grateful to Elena Krasova for linguistic check and improvements of the manuscript. We would also like to thank two anonymous reviewers for their constructive comments, recommendations as well as extra corrections of the paper's language and style.
Предметные рубрики: JONES 1850 CRUSTACEA
MACROZOOBENTHIC COMMUNITIES
INVERTEBRATES
Аннотация: Saline rivers are highly productive ecosystems in arid regions. The meiobenthic community (bottom meiofauna) and its dominant representatives are one of the least studied components of these aquatic ecosystems. Ostracods Cyprideis torosa and Heterocypris salina are major consumers among the species of bottom meiofauna in saline rivers flowing into the hyperhaline Lake Elton (Volgograd Region, Russia). We estimated the abundance, biomass and production of C. torosa, the dominant species at the mouth of the polyhaline Chernavka River (average salinity is similar to 30 g l(-1)), and H. salina, the dominant species at the mouth of the mesohaline Bolshaya Samoroda River (similar to 13 g l(-1)), in spring (May) and summer (August). Additionally, we studied the composition and content of fatty acids of the ostracods and their potential food sources (bottom sediments with bacterial-algal mats). We found that the abundance and biomass (wet weight with shells) of C. torosa in the Chernavka River and H. salina in the Bolshaya Samoroda River reached 3.5 x 10(6) ind. m(-2) and 117 g m(-2), and 1.1 x 10(5) ind. m(-2) and 12 g m(-2), respectively. The first species formed on average about 85% of the total abundance and 96% of the total biomass of the meiobenthos, and the second one, about 13% and 31%, respectively. The daily production of C. torosa and H. salina can reach 249 and 36 mg m(-2) ash-free dry weight, respectively. The results indicate that these species may play an important role in the total flow of matter and energy in the studied habitats. Based on the fatty acid (FA) composition of the ostracods and their food sources, it was found that C. torosa mainly consumed diatoms, while H. salina preferred bacteria, cyanobacteria, and green algae. Differences between the species were greater than differences between the bottom sediments from the rivers. It may mean that the ostracods selectively consumed different food items that may be related to the different nutrient requirements of the species. Seasonal changes in the FA compositions of the ostracods were higher than in their food sources (bottom sediments), which also indicates selective feeding of the species.
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13.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Lopatina T.S., Zadereev E.S.
Заглавие : Assessment of the Volatility and Thermal Stability of Chemicals that Stimulate Females of Moina macrocopa (Cladocera) to Produce Diapausing Eggs
Колич.характеристики :6 с
Место публикации : Russ. J. Ecol.: MAIK NAUKA/INTERPERIODICA/SPRINGER, 2015. - Vol. 46, Is. 1. - С. 103-108. - ISSN 1067-4136, DOI 10.1134/S1067413615010105. - ISSN 1608-3334(eISSN)
Примечания : Cited References:25
Предметные рубрики: SEXUAL REPRODUCTION
INDUCTION
DAPHNIA
METABOLITES
CRUSTACEA
Ключевые слова (''Своб.индексиров.''): cladocerans--diapause--chemical communication--chemical cues
Аннотация: The volatility and thermal stability of chemicals that are contained in the metabolic products of Moina macrocopa females that stimulate the production of diapausing eggs in these females have been studied in experiments with separately cultivated individuals. It has been shown that the gametogenesis-stimulating chemicals in this species are nonvolatile compounds: the effect of the medium that contains the metabolic products of the organism was not decreased after many hours of blowing with argon. Prolonged heating up to 80 degrees C also did not deactivate the ability of these products to change the reproductive mode. The effect of the medium that contains these products decreased after boiling, but if the possibilities of their oxidation or binding with salts of metals were excluded, they retained the ability to change the reproductive mode of the animals even after boiling.
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14.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Zadereev Y.S.
Заглавие : Effect of chemical interactions on the diapause induction in zooplankton
Колич.характеристики :4 с
Место публикации : International Association of Theoretical and Applied Limnology, Vol 29, Pt 1, Proceedings. Ser. INTERNATIONAL ASSOCIATION OF THEORETICAL AND APPLIED LIMNOLOGY - PROCEEDINGS: E SCHWEIZERBART'SCHE VERLAGSBUCHHANDLUNG, 2005. - Vol. 29: 29th Congress of the International-Association-of-Theoretical-and-Applied-Limnology (AUG 08-14, 2004, Lahti, FINLAND). - P227-230. - ISBN 0368-0770. - ISBN 3-510-54065-4
Примечания : Cited References: 24
Предметные рубрики: PREDATOR-INDUCED DIAPAUSE
BRACHIONUS-PLICATILIS
DAPHNIA-MAGNA
REPRODUCTION
CLADOCERA
REDUCTION
CRUSTACEA
DENSITY
GROWTH
PULEX
Ключевые слова (''Своб.индексиров.''): embryonic diapause--density dependence--predator avoidance--chemical interactions
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15.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Makhutova O. N., Shulepina S. P., Sharapova T. A., Dubovskaya O. P., Sushchik N. N., Baturina M. A., Pryanichnikova E. G., Kalachova G. S., Gladyshev M. I.
Заглавие : Content of polyunsaturated fatty acids essential for fish nutrition in zoobenthos species
Место публикации : Freshwater Sci.: University of Chicago Press, 2016. - Vol. 35, Is. 4. - С. 1222-1234. - ISSN 21619549 (ISSN) , DOI 10.1086/688760
Ключевые слова (''Своб.индексиров.''): fatty acids--fish--food quality--invasion--invertebrates--bryozoa--coleoptera--crustacea--dytiscus--ephemeroptera--gammaridae--hirudinea--insecta--invertebrata--mollusca--plumatella emarginata--polychaeta--trichoptera--turbellaria
Аннотация: Content of eicosapentaenoic acid (EPA, 20 : 5n-3) and docosahexaenoic acid (DHA, 22 : 6n-3) and the n-3/n-6 ratio are important indicators of nutritive value of aquatic invertebrates as food for fish. We studied fatty acid (FA) content and composition of 68 zoobenthic species. Benthic invertebrates differed significantly in their contents of EPA and DHA and n-3/n-6 ratios. The most valuable food for fish were Insecta, especially Ephemeroptera and Trichoptera, Gammaridae, and Turbellaria (Dendrocaelopsis sp.). The invertebrates of low food quality for fish were Hirudinea, Mollusca, Oligochaeta, Bryozoa (Plumatella emarginata), and Coleoptera (Dytiscus lapponicus). Our data suggest that the recent and ongoing global replacement of native species, mainly Insecta, by invaders, mostly represented by Mollusca, Crustacea, Polychaeta, Oligochaeta, Bryozoa, and Hirudinea, probably will reduce the nutritive value of food sources for benthivorous fish. In addition, some of the taxa studied have peculiar FAs, which may be useful as their markers in trophic webs. Thus, 20 : 1n-13, 20 : 2n-6, 22 : 5n-3, and 22 : 6n-3 are likely to be considered markers of Mollusca, Hirudinea, Turbellaria, and Gammaridae, respectively, for tracing food webs in freshwater ecosystems. © 2016 by The Society for Freshwater Science.
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16.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Evsyunina E. V., Taran D. O., Stom D. I., Saksonov M. N., Balayan A. E., Kirillova M. A., Esimbekova E. N., Kratasyuk V. A.
Заглавие : Comparative assessment of toxic effects of surfactants using biotesting methods
Место публикации : Inland Water Biol. - 2016. - Vol. 9, Is. 2. - С. 196-199. - ISSN 19950829 (ISSN) , DOI 10.1134/S1995082916020061
Ключевые слова (''Своб.индексиров.''): algae--bioluminescent bacteria--biotesting--daphnia--fluorescence of chlorophyll--infusorian--surfactants--survival--toxic effect--algae--ciliophora--crustacea--daphnia--daphnia magna--paramecium caudatum--photobacterium phosphoreum--protozoa--scenedesmus quadricauda
Аннотация: This study assesses the comparative sensitivity and possibility of obtaining fast results of various methods of biotesting for several surfactants: Tween 85, sodium dodecyl sulfate (SDS), Fairy dishwashing gel, and Mif washing powder. The following test organisms are used for the study: luminescent bacteria Photobacterium phosphoreum (Beijerinck), preparation of Ecolum luminescent bacteria, unicellular algae Scenedesmus quadricauda (G.M. Smith), infusorian Paramecium caudatum (Ehrenberg), and crustacean Daphnia magna (Straus). It has been revealed that Fairy dishwashing gel possesses the strongest toxicity against the studied test objects. Daphnia and algae are most sensitive to the effects of Fairy and SDS, protozoan and luminescent bacteria are most sensitive to SDS, and Ecolum is most sensitive to Mif washing powder. The tested aquatic organisms and Ecolum are most tolerant to the effect of Tween 85. © 2016, Pleiades Publishing, Ltd.
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17.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bolsunovskij A.Ya., Sukovatyj A.G.
Заглавие : Radioactive contamination of aquatic organisms of the Yenisei river in the area affected by the activity of the mining-and-chemical combine
Место публикации : Radiatsionnaya Biologiya. Radioekologiya. - 2004. - Vol. 44, Is. 3. - С. 361-366. - ISSN 08698031 (ISSN)
Ключевые слова (''Своб.индексиров.''): dosimetry--environmental impact--radioactivity--river pollution--water analysis--aquatic organisms--diatoms--exposure dose rate--fontinalis antipyretica--phylolimnogammarus viridis--the enisei river--radioisotopes--animalia--bacillariophyta--bryophyta--fontinalis--fontinalis antipyretica--fresh water--radioisotope--animal--article--chemical industry--crustacea--diatom--environmental monitoring--industrial waste--methodology--mining--plant--radiation exposure--radiation response--russian federation--water pollutant--water pollution--animals--chemical industry--crustacea--diatoms--dose-response relationship, radiation--environmental monitoring--fresh water--industrial waste--mining--plants--radioisotopes--siberia--water pollutants, radioactive--water pollution
Аннотация: The study was done to investigate the content of manmade radionuclides in aquatic organisms of the Yenisei River near the Mining-and-Chemical Combine (MCC) and to estimate the exposure dose rates to organisms from various sources. The results of the investigation and calculations suggest that the main source of radioactive contamination of aquatic organisms is the coolant of the third MCC reactor, which is still being released into the Yenisei. Gamma-spectrometric analysis revealed 23 manmade radionuclides in the biomass of aquatic plants. The aquatic animal Phylolimnogammarus viridis and diatoms also contain manmade radionuclides. Among aquatic organisms, the highest dose rate is received by aquatic plants (up to 39 ?Gy/day). For most aquatic organisms under study, the dose received from the technogenic irradiation is an order of magnitude higher than the dose received from natural irradiation. The water moss (Fontinalis antipyretica) features the highest capacity to accumulate manmade radionuclides; hence, it accumulates the largest technogenic exposure dose among the study aquatic organisms.
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18.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Yemelyanova A.Y., Temerova T.A., Degermendzhy A.G.
Заглавие : Distribution of Gammarus lacustris Sars (Amphipoda, Gammaridae) in Lake Shira (Khakasia, Siberia) and laboratory study of its growth characteristics
Место публикации : Aquatic Ecology. - 2002. - Vol. 36, Is. 2. - С. 245-256. - ISSN 13862588 (ISSN) , DOI 10.1023/A:1015624205389
Ключевые слова (''Своб.индексиров.''): biomass--fresh-water shrimp--gammarus lacustris--growth--numbers--biomass--growth rate--saline lake--spatial distribution--zoobenthos--russian federation--amphipoda--cellular organisms--decapoda (crustacea)--gammaridae--gammarus--gammarus lacustris--invertebrata
Аннотация: Spatial distribution of Gammarus lacustris in Lake Shira and growth of young specimens that feed on lake biota were studied. The amphipods have been shown to inhabit the littoral, sublittoral and the upper aphytal zones of the lake on stony-sandy soil and silted sand. The young and adult individuals stay apart. The young live in submerged or semi-submerged vegetation in the littoral, the adults in the sublittoral and upper aphytal zones. Maximum density of amphipods was encountered in the areas influenced by human activity. The feeding experiments revealed that the lake plankton is a more important food source for G. lacustris than any other food species. The specific growth rate measured was 0.039 d-1, with a length increment 0.095 mm d-1.
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19.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Makhutova O.N., Sushchik N.N., Gladyshev M.I., Ageev A.V., Pryanichnikova E.G., Kalachova G.S.
Заглавие : Is the fatty acid composition of freshwater zoobenthic invertebrates controlled by phylogenetic or trophic factors?
Место публикации : Lipids. - 2011. - Vol. 46, Is. 8. - С. 709-721. - ISSN 00244201 (ISSN) , DOI 10.1007/s11745-011-3566-9
Ключевые слова (''Своб.индексиров.''): benthic invertebrates--feeding strategy--fish--phylogeny--polyunsaturated fatty acids--arachidonic acid--docosahexaenoic acid--icosapentaenoic acid--article--controlled study--dendrocoelopsis--eulimnogammarus viridis--fatty acid analysis--feeding behavior--freshwater fish--habitat--lipid composition--nonhuman--nutritional value--phylogeny--species differentiation--taxonomy--animals--environment--fatty acids--fresh water--humans--invertebrates--phylogeny--ara--crustacea--dendrocoelopsis--eulimnogammarus viridis--invertebrata--turbellaria
Аннотация: We studied the fatty acid (FA) content and composition of ten zoobenthic species of several taxonomic groups from different freshwater bodies. Special attention was paid to essential polyunsaturated fatty acids, eicosapentaenoic acid (EPA, 20:5n-3), docosahexaenoic acid (DHA, 22:6n-3), and arachidonic acid (ARA, 20:4n-6); and the n-3/n-6 and DHA/ARA ratios, which are important for consumers of higher trophic levels, i.e., fish. The content and ratios of these FA varied significantly in the studied zoobenthic species, consequently, the invertebrates were of different nutritional quality for fish. Eulimnogammarus viridis (Crustacea) and Dendrocoelopsis sp. (Turbellaria) had the highest nutrition value for fish concerning the content of EPA and DHA and n-3/n-6 and DHA/ARA ratios. Using canonical correspondence analysis we compared the FA profiles of species of the studied taxa taking into account their feeding strategies and habitats. We gained evidence that feeding strategy is of importance to determine fatty acid profiles of zoobenthic species. However, the phylogenetic position of the zoobenthic species is also responsible and may result in a similar fatty acid composition even if species or populations inhabit different water bodies or have different feeding strategies. В© 2011 AOCS.
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20.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gladyshev M.I., Semenchenko V.P., Dubovskaya O.P., Fefilova E.B., Makhutova O.N., Buseva Z.F., Sushchik N.N., Razlutskij V.I., Lepskaya E.V., Baturina M.A., Kalachova G.S., Kononova O.N.
Заглавие : Effect of temperature on contents of essential highly unsaturated fatty acids in freshwater zooplankton
Место публикации : Limnologica. - 2011. - Vol. 41, Is. 4. - С. 339-347. - ISSN 00759511 (ISSN) , DOI 10.1016/j.limno.2011.03.001
Ключевые слова (''Своб.индексиров.''): cladocerans--copepods--essential polyunsaturated fatty acids--freshwater zooplankton--water temperature--biomass--climate effect--community structure--fatty acid--freshwater ecosystem--gas chromatography--lake ecosystem--multivariate analysis--seston--taxonomy--temperature effect--trophic level--zooplankton--animalia--copepoda--crustacea
Аннотация: In 11 lakes from cold and warm regions we studied the content of highly unsaturated fatty acids (HUFA) in seston (130?m) and crustacean zooplankton using gas chromatography-mass spectrometry. An increase of temperature correlated with a decrease of HUFA content in zooplankton. A multivariate canonical correlation analyses revealed, that the decrease of HUFA content was related with a decrease of per cent of copepods in zooplankton communities, which are known to have higher HUFA levels in their biomass, than cladocerans. This means that temperature primarily affected the HUFA levels indirectly, via changing of taxonomic structure of zooplankton community, while the homeoviscous adaptation of zooplankton individuals had comparatively lower importance. As found, water temperature was better predictor of HUFA contents of zooplankton, than the fatty acid composition of seston. Thus, it can be predicted, that a probable climate warming will decrease the content of the essential HUFA in freshwater zooplankton with possible negative consequences for animals of higher trophic levels. В© 2011 Elsevier GmbH.
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