Species composition of planktonic Rotifera, Cladocera and Copepoda in the littoral zone of Lake Ladoga

Hydrobiologia ◽  
1996 ◽  
Vol 322 (1-3) ◽  
pp. 181-185 ◽  
Author(s):  
Irena V. Telesh
Keyword(s):  
Species Composition ◽  
Littoral Zone ◽  
Lake Ladoga

Species composition and distribution of marine macro algae at Co To and Thanh Lan archipelago

2020 ◽  
Vol 20 (3) ◽  
pp. 267-276
Author(s):  
Dam Duc Tien ◽  
Nguyen Thi Mai Anh ◽  
Linh Manh Nguyen ◽  
Pham Thu Hue ◽  
Lawrence Liao
Keyword(s):  
Species Composition ◽  
Littoral Zone ◽  
Marine Algae ◽  
Similarity Coefficient ◽  
Algal Flora ◽  
Average Value ◽  
Site Number ◽  
Species Composition And Distribution ◽  
Total Species ◽  
Macro Algae

This paper exhibites species composition and distribution of marine seaweed at 10 sites of Co To and Thanh Lan islands in May 2019. The studies record 76 species of marine algae in the area, belonging to four divisions: Cyanophytes, Rhodophytes, Ochrophytes and Chlorophytes. Among them, five species are classified into Cyanophytes (comprising 6.6% of total species); thirty-four species into Rhodophytes (44.7%); twenty-one species into Ochrophytes/Phaeophytes (27.6%) and sixteen species into Chlorophytes (21.1%). The species composition of marine seaweeds in Co To and Thanh Lan shows significant differences as follows: 22 species (sites number 4 and 10) to 58 species (site number 2) and the average value is 38.7 species per site. Sørensen similarity coefficient fluctuates from 0.33 (sites number 5 and 10) to 0.84 (sites number 1 and 3) and the average value is 0.53. The current investigations show that four species of twenty-one species are collected in the littoral zone and forty-two species in the sub-littoral zone (in which there are thirteen species distributed in both littoral zone and sub-littoral zone). The algal flora in Co To and Thanh Lan is characterized by subtropics.

scholarly journals Structure and dynamics of aquatic organisms in the littoral zone of Petrokrepost Bay (Lake Ladoga)

2015 ◽  
pp. 53 ◽  
Author(s):  
Дина Сергеевна Дудакова ◽  
Наталья Владимировна Родионова ◽  
Елена Викторовна Протопопова ◽  
Лариса Леонидовна Капустина ◽  
Денис Сергеевич Бардинский ◽  
...  
Keyword(s):  
Littoral Zone ◽  
Aquatic Organisms ◽  
Lake Ladoga ◽  
Structure And Dynamics

Littoral zone of Lake Ladoga: ecological state evaluation

1996 ◽  
pp. 39-47
Author(s):  
Igor M. Raspopov ◽  
Inna N. Andronikova ◽  
Oksana N. Dotsenko ◽  
Eugene A. Kurashov ◽  
Galina I. Letanskaya ◽  
...  
Keyword(s):  
Littoral Zone ◽  
Lake Ladoga ◽  
Ecological State ◽  
State Evaluation

scholarly journals Desmids (Zygnematophyceae) from the littoral zone of an urban artificial lake: taxonomic aspects and geographical distribution

2018 ◽  
Vol 30 (0) ◽  
Author(s):  
Camila Akemy Nabeshima Aquino ◽  
Gabriela Medeiros ◽  
Jascieli Carla Bortolini ◽  
Cinthia Coutinho Rosa Favaretto ◽  
Douglas Ticiani ◽  
...  
Keyword(s):  
Species Composition ◽  
Geographical Distribution ◽  
Littoral Zone ◽  
New Records ◽  
Frequency Of Occurrence ◽  
Morphometric Characteristics ◽  
Ecological Studies ◽  
Artificial Lake ◽  
Qualitative Nature ◽  
Municipal Lake

Abstract Aim: The aim of this study was to assess the taxonomic aspects and geographical distribution of the periphytic desmids from two different substrates in the littoral zone of an urban artificial lake. Methods Samples of epiphytic and epilithic desmids were collected by grass and rock scraping, respectively, in two stations in the Cascavel municipal lake, Paraná, during April 2015, and March 2016 and 2017. In the laboratory, the taxa obtained from the samples were photographed and their morphometric characteristics recorded. The species composition of the desmid was characterized, and the frequency of occurrence as well as the geographic distribution of each taxon in the Paraná State were recorded. Results We identified 35 taxa, distributed in 10 genera. The most representative were Closterium Nitzsch ex Ralfs and Cosmarium Corda ex Ralfs. A high occurrence of sporadic taxa (60%) was observed and among the recorded taxa, the most frequent were Cosmarium pseudoconnatum Nordstedt var. pseudoconnatum and Desmidium grevillei (Kützing ex Ralfs) De Bary. Nine taxa were exclusive to the epilithic substrate and only Netrium digitus (Ralfs) Itzigsohn & Rothe var. digitus was exclusive to the epiphytic substrate, while the remaining 25 taxa occurred in both substrates. Seven taxa are new records for the Paraná State. Conclusion Although our results are of qualitative nature, they provide baseline data on the biogeographic distribution of taxa, which are crucial for future taxonomic and ecological studies that might contribute to the preservation of the biodiversity.

Littoral zone of Lake Ladoga: ecological state evaluation

Hydrobiologia ◽  
1996 ◽  
Vol 322 (1-3) ◽  
pp. 39-47 ◽  
Author(s):  
Igor M. Raspopov ◽  
Inna N. Andronikova ◽  
Oksana N. Dotsenko ◽  
Eugene A. Kurashov ◽  
Galina I. Letanskaya ◽  
...  
Keyword(s):  
Littoral Zone ◽  
Lake Ladoga ◽  
Ecological State ◽  
State Evaluation

EMERGENCE OF CADDISFLIES (TRICHOPTERA) FROM ERODING AND NON-ERODING SHORELINES OF SOUTHERN INDIAN LAKE, MANITOBA, CANADA

1983 ◽  
Vol 115 (12) ◽  
pp. 1563-1572 ◽  
Author(s):  
Vincent H. Resh ◽  
David M. Rosenberg ◽  
Allen P. Wiens
Keyword(s):  
Organic Matter ◽  
Species Composition ◽  
Littoral Zone ◽  
Erosion Rate ◽  
Artificial Substrate ◽  
Shoreline Erosion ◽  
Emergence Trap ◽  
Interspecific Differences ◽  
Number Of Individuals ◽  
The Relationship

AbstractEmerging Trichoptera were collected from the littoral zone of a newly-created reservoir, Southern Indian Lake, Manitoba, from 1977 to 1981. The relationship between caddisfly emergence and lake shoreline type, depth of sampling, and shoreline erosion rate was studied. Twenty-five species of Trichoptera were collected; six species of Polycentropodidae comprised almost 75% of the total number of individuals. Abundance and richness of Trichoptera were correlated with shoreline stability, with higher abundance and richness being found at more stable (i.e. lower erosion) shorelines. Highest numbers of Trichoptera emerged in 1981, 5 years after impoundment. Maximum abundance and richness of Trichoptera was found at 3.5 m depth, which is also the depth at which maximum deposition of organic matter occurred. Agrypnia straminea Hagen, a case-maker, dominated the trichopteran fauna at the marsh shoreline; species of net-spinning Polycentropodidae dominated at the clay shorelines. Patterns of species composition and abundance in 1982 artificial substrate collections were similar to those found in 1977–1981 emergence trap collections. Interspecific differences in Neureclipsis capture nets may explain the greater abundance of N. validus (Walker) than N. bimaculatus (L.) at a high erosion shoreline.

scholarly journals ENVIRONMENTAL ASSESSMENT OF WATER QUALITY OF THE LITTORAL ZONE OF LAKE LADOGA BASED ON THE RESULTS OF MICROBIOLOGICAL STUDIES

2020 ◽  
pp. 88
Author(s):  
Галина Геннадьевна Митрукова ◽  
Лариса Леонидовна Капустина ◽  
Евгений Александрович Курашов ◽  
Galina Mitrukova ◽  
Larisa Kapustina ◽  
...  
Keyword(s):  
Water Quality ◽  
Environmental Assessment ◽  
Littoral Zone ◽  
Lake Ladoga
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