scholarly journals An Illustrated Checklist of Leech Species from Lake Baikal (Eastern Siberia, Russia)

2013 ◽  
Vol 2013 ◽  
pp. 1-4 ◽  
Author(s):  
Irina Kaygorodova
Keyword(s):  
Species Composition ◽  
Lake Baikal ◽  
Eastern Siberia ◽  
First Time

New data on Lake Baikal fauna of Hirudinida (Annelida, Clitellata) are presented. The species composition of Baikal leeches extends to 20 species belonging to two orders, four families, and 12 genera. An updated checklist includes information on five species recorded in Eastern Siberia for the first time. All specimens from author’s collection are provided with illustration.

scholarly journals First Records of Potamic Leech Fauna of Eastern Siberia, Russia

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Irina A. Kaygorodova ◽  
Elena V. Dzyuba ◽  
Natalya V. Sorokovikova
Keyword(s):  
River Basin ◽  
Lake Baikal ◽  
Eastern Siberia ◽  
Free Living ◽  
Lena River ◽  
Baikal Basin ◽  
Lake Baikal Basin ◽  
Unidentified Species ◽  
First Time

We studied the fauna of leech and leech-like species inhabiting main water streams of Eastern Siberia and its tributaries, which are attributed to Lake Baikal basin and Lena River basin. Here we present their list for the first time. This study was mainly aimed for free-living parasitic and carnivorous leeches whereas piscine parasites were not included specially. In total, the potamic leech fauna of Eastern Siberia includes 12 described species belonging to 10 genera. Representatives of three unidentified species of two genera Erpobdella and Barbronia have been also recorded.

scholarly journals New Data on Distribution and Morphological Characters of Cladocera (Daphniidae Straus, 1820) and Copepoda (Diaptomidae Sars, 1903, Cyclopidae Dana, 1846) in Lake Baikal

2020 ◽  
Vol 31 ◽  
pp. 76-92
Author(s):  
N. G. Sheveleva ◽  
◽  
E. A. Misharina ◽  
N .V. Makarkina ◽  
◽  
...  
Keyword(s):  
Species Diversity ◽  
Lake Baikal ◽  
Morphological Analysis ◽  
Morphological Characters ◽  
Water Bodies ◽  
Eastern Siberia ◽  
The South ◽  
First Finding ◽  
The Family ◽  
First Time

The species diversity of the superclass Crustacea only in Lake Baikal has 58 species of the superorder Cladocera and 52 species and subspecies from the subclass Соpepoda, 5 of them belong to the order Calanoida and 47 to the order Cyclopoida. Species that inhabit the waters of Olkhon Island are not included in this list. On the island there are temporary and permanent reservoirs, which by the chemical composition of the water are fresh or brackish. The species diversity of the island crustaceans includes 28 species, of which only 64 % are known for Baikal. This article gives a brief description of the morphology of rare and small species from the family Daphniidae: Ceriodaphnia megops Sars 1985; Diaptomidae: Arctodiaptomus (A.) wierzejskii (Richard, 1888) and Cyclopidae: Eucyclops arcanus Alekseev, 1990. The first two species were found in Lake Baikal, the third species – on Olkhon Island. Morphological analysis of the species was performed by means of a scanning electron microscope (SEM). A detailed description of the morphological features of C. megops, A. (A.) wierzejskii female and male, and E. arcanus female with illustrations is presented. Data on diaptomus and cyclopoid mouth appendages, tables with biometrical parameters of a cyclopoid are provided. Images of cyclopoid Р1–Р4 coxopodite and basal exopodite segment are shown for the first time. C. megops and A. (A.) wierzeskii crustaceans are rare species in the water bodies of the south of Central Asia, including Mongolia. A. (A.) wierzeskii population is the first finding in the water bodies of the south of Eastern Siberia and Baikal.

scholarly journals Cladocera species (Crustacea, Branchiopoda) in the littoral zone of Lake Baikal: some representatives of Daphniidae families

2022 ◽  
Vol 962 (1) ◽  
pp. 012034
Author(s):  
N G Sheveleva ◽  
I M Mirabdullayev ◽  
S Y Neronova
Keyword(s):  
Lake Baikal ◽  
Littoral Zone ◽  
Water Bodies ◽  
Eastern Siberia ◽  
The South ◽  
First Time

Abstract Brief morphological descriptions of new Cladocera taxa (Daphniidae): Daphnia (Daphnia) turbinata Sars, 1903; Daphnia (Ctenodaphnia) sinensis Gu, Xu, Li, Dumont et Han 2013, found in Lake Baikal are presented. The representatives of these taxa inhabit the littoral zone of the lake and Olkhon Island. Daphnia (Ctenodaphnia) sinensis were encountered in the water bodies in the south of Eastern Siberia for the first time.

scholarly journals New Records of Lake Baikal Leech Fauna: Species Diversity and Spatial Distribution in Chivyrkuy Gulf

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Irina A. Kaygorodova ◽  
Nikolay M. Pronin
Keyword(s):  
Spatial Distribution ◽  
Species Diversity ◽  
Species Composition ◽  
Lake Baikal ◽  
New Records ◽  
Biological Productivity ◽  
The Family ◽  
Unidentified Species ◽  
Diverse Community ◽  
First Time

The study of several Lake Baikal leech collections offered us the possibility to determine species diversity in the Chivyrkuy Gulf, the biggest one in the lake. As a result, the first information on the Chivyrkuy Hirudinea fauna (Annelida, Clitellata) has been revealed. There are two orders and four families of leeches in the Chivyrkuy Gulf: order Rhynchobdellida (families Glossiphoniidae and Piscicolidae) and order Arhynchobdellida (families Erpobdellidae and Haemopidae). In total, 22 leech species and 2 subspecies belonging to 11 genera were identified. Of these, 4 taxa belong to the family Glossiphoniidae (G. concolor,A. hyalina,A. heteroclitaf.papillosa, andA. heteroclitaf.striata) recorded in Baikal for the first time. Representatives of 8 unidentified species (Glossophiniasp.,Baicaloclepsissp.,Baicalobdellasp.,Piscicolasp. 1,Piscicolasp. 2,Erpobdellasp. 1,Erpobdellasp. 2, andErpobdellasp. 3) have been also recorded. The checklist gives a contemporary overview of the species composition of leech parasites, their hosts, and distribution within the Chivyrkuy Gulf. The analysis of spatial distribution has shown that the leech species diversity is correlated with the biological productivity of the bay. The most diverse community of leech species is detected in the eutrophic zone of the lake.

To the species composition of oribatid mites (Acari, Oribatida) of Rivnensky Nature Reserve

2019 ◽  
Vol 16 (1) ◽  
pp. 21-24
Author(s):  
O.S. Shevchenko
Keyword(s):  
Species Composition ◽  
Nature Reserve ◽  
Mite Species ◽  
Oribatid Mites ◽  
First Time

New data was added to the oribatid species composition of the Rivnensky Nature Reserve. Overall, 62 mite species were recorded for the territory of research in this study. The species Acrogalumna longipluma, Micreremus brevipes, Licneremaeus licnophorus, Oribatella reticulata, and Porobelba spinosa were not previously listed for the Western Polissia. Of the 60 species of Lower Oribatida mites that have been recorded by other authors in that area, only 18 are found again in the Rivnensky Nature Reserve, indicating that our results are intermediate. A representative of the genus Mainothrus Choi, 1996 (Mainothrus badius (Berlese, 1905)) is found in Ukraine for the first time.

New and interesting lichen records for Republic of Sakha (Yakutia). III

2017 ◽  
Vol 51 ◽  
pp. 220-231 ◽  
Author(s):  
S. V. Chesnokov ◽  
L. A. Konoreva ◽  
L. N. Poryadina ◽  
A. G. Paukov ◽  
E. S. Kusnetsova ◽  
...  
Keyword(s):  
Lichen Species ◽  
Eastern Siberia ◽  
First Time

Lichen specimens collected in 2008, 2015 and 2016 in Central (Olekminsky district), Eastern (Oimyakon district) and Southern (Aldan, Neryungri districts) Yakutia were studied. As a result 16 lichen species are recorded for Yakutia for the first time, among them 8 species are new to Eastern Siberia and one species — Ramonia himelbrantii — new to Asia. At present the list of lichens of Yakutia numbers about 820 species.

The first record of Gyalideopsis helvetica (Graphidaceae, lichenized Ascomycota) for Russia from the southern part of Lake Baikal Region

2015 ◽  
Vol 49 ◽  
pp. 282-288 ◽  
Author(s):  
I. N. Urbanavichene
Keyword(s):  
Lake Baikal ◽  
Baikal Region ◽  
First Record ◽  
Identification Key ◽  
Lake Baikal Region ◽  
First Time

Until recently only two species of Gyalideopsis (G. piceicola and G. alnicola) were known from very few localities in Russia. Gyalideopsis helvetica is reported for the first time for Russia from the southern part of Baikal area (KhamarDaban Range, Baikalsky Zapovednik). Description of the collected specimen and its comparison with the literature data are provided; morphology, ecology and distribution of G. helvetica are discussed. The hyphophores of G. helvetica are recorded and described for the first time. An identification key to Gyalideopsis species known in Russia is provided.

Liverworts of the Uzon Volcano caldera (Kronotsky Nature Reserve, Kamchatka)

2011 ◽  
Vol 45 ◽  
pp. 386-393
Author(s):  
A. D. Potemkin ◽  
E. Yu. Kuzmina ◽  
T. I. Koroteeva (Nyushko)
Keyword(s):  
Species Composition ◽  
Nature Reserve ◽  
Uzon Caldera ◽  
Red Data Book ◽  
Natural Feature ◽  
Data Book ◽  
First Time ◽  
Kronotsky Nature Reserve

Species composition of liverworts of unique natural feature of Kamchatka — Uzon Volcano caldera is listed. It includes 38 species. 29 of them are found for the first time for the Uzon caldera. Marsupella funckii, Nardia assamica, N. unispiralis included in Red Data Book of Kamchatka (2007).

scholarly journals Temporal Stability and Biodiversity of Two Complex Antilisterial Cheese-Ripening Microbial Consortia

2003 ◽  
Vol 69 (7) ◽  
pp. 4012-4018 ◽  
Author(s):  
Ariel Maoz ◽  
Ralf Mayr ◽  
Siegfried Scherer
Keyword(s):  
Species Composition ◽  
Bacterial Species ◽  
Temporal Stability ◽  
Individual Characteristics ◽  
Microbial Consortia ◽  
Cheese Ripening ◽  
Safe Food ◽  
The Stability ◽  
The Individual ◽  
First Time

ABSTRACT The temporal stability and diversity of bacterial species composition as well as the antilisterial potential of two different, complex, and undefined microbial consortia from red-smear soft cheeses were investigated. Samples were collected twice, at 6-month intervals, from each of two food producers, and a total of 400 bacterial isolates were identified by Fourier-transform infrared spectroscopy and 16S ribosomal DNA sequence analysis. Coryneform bacteria represented the majority of the isolates, with certain species being predominant. In addition, Marinolactobacillus psychrotolerans, Halomonas venusta, Halomonas variabilis, Halomonas sp. (106 to 107 CFU per g of smear), and an unknown, gram-positive bacterium (107 to 108 CFU per g of smear) are described for the first time in such a consortium. The species composition of one consortium was quite stable over 6 months, but the other consortium revealed less diversity of coryneform species as well as less stability. While the first consortium had a stable, extraordinarily high antilisterial potential in situ, the antilisterial activity of the second consortium was lower and decreased with time. The cause for the antilisterial activity of the two consortia remained unknown but is not due to the secretion of soluble, inhibitory substances by the individual components of the consortium. Our data indicate that the stability over time and a potential antilisterial activity are individual characteristics of the ripening consortia which can be monitored and used for safe food production without artificial preservatives.

Lichens of swamp complexes of Sakhalin Island (Sakhalin Region, Russian Far East)

2021 ◽  
Vol 55 (2) ◽  
pp. 405-426
Author(s):  
I. F. Skirina ◽  
N. A. Tsarenko ◽  
F. V. Skirin
Keyword(s):  
Species Composition ◽  
Russian Far East ◽  
Far East ◽  
Sakhalin Island ◽  
The South ◽  
Red Lists ◽  
The Far East ◽  
First Time ◽  
Lichen Flora

This paper presents the results of the study of lichen flora in swamp complexes of Sakhalin Island, obtained during expeditionary research in 2005–2009 and 2014–2020. The revealed species composition of lichens includes 172 species. The 28 of them are new for Sakhalin and 93 are new for the island swamp complexes. Bryocaulon pseudosatoanum is included in the regional and federal Red lists. Lecidea nylanderi is new to the south of the Far East. The information about substrates, habitats and locations is given for all species. The data on the distribution in the south of the Far East and, in some cases for all Far East, are listed for selected species that are new for Sakhalin Island and the south of the Far East. For the first time, a characteristic of the distribution of lichens in oligotrophic, eutrophic and mesotrophic bogs of Sakhalin Island is given.

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