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N. M. Korovchinsky - One of the best experts on this subject based on the ideXlab platform.
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Cladocera (Crustacea, Branchiopoda) of Central Yakutia: 1. Some Representatives of the Families Sididae, Daphniidae, and Ophryoxidae
Biology Bulletin, 2017Co-Authors: A. I. Klimovsky, N. M. Korovchinsky, E. I. Bekker, A. A. KotovAbstract:This series of communications is aimed to report on a study of the water fleas (Crustacea, Cladocera) of Central Yakutia. This first communication provides brief descriptions of the representatives of the families Sididae, Daphniidae, and Ophryoxidae, namely Sida crystallina (O.F. Müller 1776), Diaphanosoma orghidani orghidani Negrea 1982, Diaphanosoma amurensis Korovchinsky et Sheveleva 2009, Diaphanosoma brachyurum (Liévin 1848), Scapholeberis mucronata (O.F. Müller 1776), Scapholeberis rammneri Dumont et Pensaert 1983, Megafenestra cf. nasuta (Birge 1879), Simocephalus cf. serrulatus (Koch 1841), and Ophryoxus kolymensis Smirnov 1992. Remarks are given on the occurrence of these taxa in Northern Eurasia.
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Diaphanosoma Fischer, 1850 (Crustacea: Cladocera: Sididae) of Lake Turkana (East Africa), with the description of a new species of the genus.
Zootaxa, 2017Co-Authors: N. M. Korovchinsky, Elizabeth J. Walsh, Radoslav SmolakAbstract:Diaphanosoma turkanae sp. nov. is described from Lake Turkana (Kenya, East Africa). This species is the second Afrotropical endemic in the order Ctenopoda. It is characterized by a distinctive feature, the presence of an unusually small number of setae on the upper two-segmented antennal branch (exopodite); the proximal segment of the branch always bears three setae while the distal segment bears either six or seven setae. Morphologically the new species is most similar to D. orghidani Negrea , also occurring in Africa and presumably sharing an evolutionary affinity. D. turkanae sp. nov. co-occurs with two other species of the genus, D. lacustris Kořinek and D. excisum Sars, which are briefly described here. Temperate-subtropical species of the genus Diaphanosoma penetrate far south along the Nile River system up to the equatorial and Ethiopian lakes and further southwards, often forming multi-species assemblages.
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Cladocera (Crustacea, Branchiopoda) of Central Yakutia: 1. Some Representatives of the Families Sididae, Daphniidae, and Ophryoxidae
Biology Bulletin, 2017Co-Authors: A. I. Klimovsky, N. M. Korovchinsky, E. I. Bekker, A. A. KotovAbstract:This series of communications is aimed to report on a study of the water fleas (Crustacea, Cladocera) of Central Yakutia. This first communication provides brief descriptions of the representatives of the families Sididae, Daphniidae, and Ophryoxidae, namely Sida crystallina (O.F. Muller 1776), Diaphanosoma orghidani orghidani Negrea 1982, Diaphanosoma amurensis Korovchinsky et Sheveleva 2009, Diaphanosoma brachyurum (Lievin 1848), Scapholeberis mucronata (O.F. Muller 1776), Scapholeberis rammneri Dumont et Pensaert 1983, Megafenestra cf. nasuta (Birge 1879), Simocephalus cf. serrulatus (Koch 1841), and Ophryoxus kolymensis Smirnov 1992. Remarks are given on the occurrence of these taxa in Northern Eurasia.
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A new species of Diaphanosoma Fischer, 1850 (Crustacea: Branchiopoda: Sididae) inhabits lakes of the western United States
Journal of Limnology, 2015Co-Authors: N. M. KorovchinskyAbstract:Diaphanosoma edmondsoni sp. nov. is described from material from several lakes in Washington, California, and Montana. It differs from all other known species of the genus in having a specific combination of traits: a head with conspicuously protruding dorsal part, comparatively small eye shifted ventrally, specific armament of postero-ventral valve margin, lack of thorn(s) near posterior valve margin, comparatively long distal basal spine of postabdominal claws of slightly variable shape, and occasional presence of additional large spines on the claws. This is the first endemic species of the genus (and also of the family Sididae and order Ctenopoda) recorded in the western part of North America, which along with some other cladocerans form a group of taxa highlighting this region as one of the regional centers of endemic aquatic fauna.
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Redescription of Limnosida frontosa Sars, 1862 (Crustacea: Cladocera: Sididae), with evidence of possible incipient species differentiation.
Zootaxa, 2014Co-Authors: N. M. KorovchinskyAbstract:Limnosida frontosa Sars, 1862 is redescribed based on the material from over its entire range, from Norway and Finland in the west to Yakutia in eastern Siberia and the Lower Amur River basin (Far East of Russia) in the east. Morphological analysis of the species has revealed a combination of advanced and evolutionary primitive features, latter characterizing Limnosida as the most primitive member of the order Ctenopoda. Investigation of intra- and interpopulational morphological variability, in particular of the post abdominal claws, led to a tentative separation of the species into two main forms, occurring regionally in the north-west and east of Northern Eurasia. Their taxonomic status as yet remains unclear. Some overlap in geographical distribution of these forms and the presence of populations with intermediate morphological features probably reflects irregularity of the diversification process in L. frontosa s.l. within its range. This diversification may be the result of both geographic disjunction and adaptation to waters of different trophic status. The low level of intraspecies differentiation and comparatively limited geographic distribution of this species imply its young age while the genus Limnosida itself is presumed ancient.
Carlos Eduardo Falavigna Da Rocha - One of the best experts on this subject based on the ideXlab platform.
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Neodiaphanosoma a new genus of Sididae (Branchiopoda, Ctenopoda); with description of N. bergamini sp. n. and comments on N. volzi (Stingelin 1905)
Hydrobiologia, 1999Co-Authors: Juan César Paggi, Carlos Eduardo Falavigna Da RochaAbstract:This paper describes a previously unknown ctenopod crustacean of the family Sididae, collected in Brazil and Venezuela which, along with the forms known as Diaphanosoma volzi, displays distinctive characteristics that are here recognised as being of generic magnitude. Phenetic analysis of the species within the family Sididae, supports the hypothesis that Neodiaphanosoma constitutes a well defined group, differentiated enough from Diaphanosoma to be accepted as a different genus. The new genus seems to be a group of specialised species, close to Diaphanosoma with advanced features. Some features shared with Sarsilatona, Latonopsis and Pseudosida probably reflect convergence related to littoral habitat more than ancestry.
Korovchinsky, Nikolai M. - One of the best experts on this subject based on the ideXlab platform.
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FIGURES 21 – 24 in Diaphanosoma senegal Gauthier, 1951 (Crustacea: Cladocera: Sididae) in South-East Asia
2018Co-Authors: Korovchinsky, Nikolai M., Sanoamuang La-orsriAbstract:FIGURES 21 – 24. Diaphanosoma senegal isanensis ssp. nov., female (pond, Lue Amnat dt., Amnat Charoen Province, Thailand
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FIGURES 15 – 20 in Diaphanosoma senegal Gauthier, 1951 (Crustacea: Cladocera: Sididae) in South-East Asia
2018Co-Authors: Korovchinsky, Nikolai M., Sanoamuang La-orsriAbstract:FIGURES 15 – 20. Diaphanosoma senegal isanensis ssp. nov., females (pond, Lue Amnat dt., Amnat Charoen Province, Thailand
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FIGURES 1 – 9 in Diaphanosoma senegal Gauthier, 1951 (Crustacea: Cladocera: Sididae) in South-East Asia
2018Co-Authors: Korovchinsky, Nikolai M., Sanoamuang La-orsriAbstract:FIGURES 1 – 9. Diaphanosoma senegal isanensis ssp. nov., females (1 - pond at Phon Pang, Akat Amnuai dt., Sakon Nakhon Province, Thailand; 2, 3, 8, 9 right- pond, Lue Amnat dt., Amnat Charoen Province, Thailand; 4 - temporary pond at Ban Eiat, Muang dt., Maha Sarakham Province, Thailand; 5, 6, 7 - temporary pond at Ban Donwua, Tawatchabury dt., Roi Et Province, Thailand; 9, left- pools in tropical forest of Nam Cat Tien National Park, Vietnam
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FIGURES 10 – 14 in Diaphanosoma senegal Gauthier, 1951 (Crustacea: Cladocera: Sididae) in South-East Asia
2018Co-Authors: Korovchinsky, Nikolai M., Sanoamuang La-orsriAbstract:FIGURES 10 – 14. Diaphanosoma senegal isanensis ssp. nov., females (10, left-pond at Phon Pang, Akat Amnuai dt., Sakon Nakhon Province, Thailand; 10, second-fifth from the left, 13 - pond, Lue Amnat dt., Amnat Charoen Province, Thailand; 10, two from the right-pools in tropical forest of Nam Cat Tien National Park, Vietnam; 11 - temporary pond at Ban Thatoom, Muang dt., Maha Sarakham Province, Thailand; 12 - roadside pond near km 84, Lam Plai Mat dt., Buriram Province, Thailand; 14, left and right-temporary pond at Ban Donwua, Tawatchabury dt., Roi Et Province, Thailand; 14, middle-pools in tropical forest of Nam Cat Tien National Park, Vietnam
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Diaphanosoma Fischer, 1850 (Crustacea: Cladocera: Sididae) of Lake Turkana (East Africa), with the description of a new species of the genus
2017Co-Authors: Korovchinsky, Nikolai M., Walsh, Elizabeth J., Smolak RadoslavAbstract:Korovchinsky, Nikolai M., Walsh, Elizabeth J., Smolak, Radoslav (2017): Diaphanosoma Fischer, 1850 (Crustacea: Cladocera: Sididae) of Lake Turkana (East Africa), with the description of a new species of the genus. Zootaxa 4250 (1): 77-89, DOI: https://doi.org/10.11646/zootaxa.4250.1.
Juan César Paggi - One of the best experts on this subject based on the ideXlab platform.
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Neodiaphanosoma a new genus of Sididae (Branchiopoda, Ctenopoda); with description of N. bergamini sp. n. and comments on N. volzi (Stingelin 1905)
Hydrobiologia, 1999Co-Authors: Juan César Paggi, Carlos Eduardo Falavigna Da RochaAbstract:This paper describes a previously unknown ctenopod crustacean of the family Sididae, collected in Brazil and Venezuela which, along with the forms known as Diaphanosoma volzi, displays distinctive characteristics that are here recognised as being of generic magnitude. Phenetic analysis of the species within the family Sididae, supports the hypothesis that Neodiaphanosoma constitutes a well defined group, differentiated enough from Diaphanosoma to be accepted as a different genus. The new genus seems to be a group of specialised species, close to Diaphanosoma with advanced features. Some features shared with Sarsilatona, Latonopsis and Pseudosida probably reflect convergence related to littoral habitat more than ancestry.
I. M. Mirabdullaev - One of the best experts on this subject based on the ideXlab platform.
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A new species of the genusDiaphanosoma Fischer, 1850 (Crustacea: Daphniiformes: Sididae) from Central Asia and China
Hydrobiologia, 1995Co-Authors: N. M. Korovchinsky, I. M. MirabdullaevAbstract:Diaphanosoma macrophthalma sp.nov. is described based on material (parthenogenetic females and males) obtained from a number of water bodies of Uzbekistan, Kazakhstan and China. Intra- and interpopulation morphological variability, size range, sex structure and geographical distribution are analyzed.
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A new species of the genus Diaphanosoma Fischer, 1850 (Crustacea : Daphniiformes : Sididae) from Central Asia and China
Hydrobiologia, 1995Co-Authors: N. M. Korovchinsky, I. M. MirabdullaevAbstract:Diaphanosoma macrophthalma sp.nov. is described based on material (parthenogenetic females and males) obtained from a number of water bodies of Uzbekistan, Kazakhstan and China. Intra- and interpopulation morphological variability, size range, sex structure and geographical distribution are analyzed.
