High mountain lakes

Six newly recorded taxa, Chlamydomonas pertusa Chodat, Coenochloris pyrenoidosa Korshikov, Coenocystis tapasteana Komárek, Katagnymene accurata Geitler, Phormidium stagninum Anagnostidis, and Scytonema coactile Montagne ex Bornet & Flahault, were described from epipelic, epilithic, and epiphytic materials of the 17 high mountain lakes and a pond in Artabel Lakes Nature Park. The morphology of all species was examined by light microscopy. In this paper, the morphology, ecology, and distribution of these species are discussed. Photos of the species are also provided.

8p tudichquannguyet 29-11-2021 9 1   Download

The algal flora of 17 lakes and 1 pond in the Artabel Lakes Nature Park were investigated during two summer seasons (2013 and 2016). In total, 26 desmid taxa were found and identified as new records for the desmid flora of Turkey based on their morphotaxonomic characteristics and ecological preferences. The taxa identified belong to the genera Actinotaenium (1), Closterium (1), Cosmarium (15), Micrasterias (1), Spondylosium (1), Staurastrum (5), Teilingia (1), and Tetmemorus (1). Morphotaxonomy, ecology, and distribution of each species were discussed in detail.

14p tudichquannguyet 29-11-2021 5 1   Download

Biotic indices to monitor water quality are helpful tools for evaluating the health of rivers. Water quality analysis is mainly done using physical and chemical attributes in the DR Congo. The objectives of this study were to assess the biological water of Cirhanyobowa River using macroinvertebrate index and the relationship between physicochemical parameters and the ecological index from January to December, 2017. Eight physicochemical parameters and abundance of macroinvertebrates were obtained for 6 sites from upstream to downstream part, with different land uses.

13p quenchua2 15-12-2019 29 1   Download

A British visitor to the Rocky Mountains, despite the fact that his Denver hosts had urged him, 'You'll love the Rockies', complained that there were too many trees of too few kinds, mostly the same monotonous evergreens, too many rocks, too much sun too high in the sky, not enough water, the scale was too big and there were not enough signs of humans, no balanced elements of form and colour, nothing like the Lake District or the Scottish lochs. 16 Can one argue that he was wrong? One argument is that he did not have the right scientific categories....

12p giamdocamnhac 06-04-2013 32 2   Download

Prior to a trip to Canada, many think about a country with tremendously large areas containing some of the world’s most beautiful nature. Expansive forests, great lakes, roaring rivers and high mountains. True, this is all a big part of Canada’s trademark, but a number of cultural experiences await in the Canadian cities. Everything from small villages on the prairie, where only grain silos break the horizon, to modern cities with millions of inhabitants offering a hectic and, very lively, cultural milieu….

108p tuanloc_muido 11-12-2012 94 14   Download