New desmid records from high mountain lakes in Artabel Lakes Nature Park, Gümüşhane, Turkey

Abstract

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.

New Records for the Turkish Freshwater Algal Flora in Twenty Five River Basins of Turkey, Part Vi: Charophyta

“…The highest diversity is found in mesotrophic, slightly acidic to slightly alkaline water bodies like fen hollows or moorland pools where desmids are among the dominant groups of the phytobenthos, both in terms of species richness and biomass (Coesel & Meesters 2007). Desmids are not merely one of the main freshwater microalgae groups that occur in high mountain lakes biotopes in Turkey, but they also inhabit microhabitats with oligotrophic conditions characterized by relatively acidic to weakly alkaline waters with low conductivity (Şahin & Akar 2019). In this study, only the Spirogyra decimina var.…”

“…Desmids are exclusively found in freshwater habitats (Kouwets 2008) and usually prefer acidic or pH-circumneutral, nutrientpoor, and clear waters (Lenzenweger 1996). According to Şahin and Akar (2019), desmid flora is typical, with a predominance of cosmopolitan species, planktic-benthic forms, acidophilic and pH-indifferent species, and halophobic-to-salinity-indifferent species. It is well known that Desmidiales members, which attracted the attention of scientists due to their forms, exhibit great diversity in their external morphology and show a remarkably complex cell symmetry (Lee 2015).…”

Non-diatom algae of the high mountain protected lakes in the Artabel Lakes Nature Park, Gümüşhane, Turkey

“…The results of some physical and chemical analyses of the studied waters are given in another paper (Şahin & Akar 2019a). According to the results (Table 1), waters tem pe ra tures ranged from 10.1 to 19.1°C.…”

“…Despite the fact that the algae in the Artabel Lakes Nature Park were studied for the first time and therefore are new to this protected area, we revealed 32 new taxa (Table A1, asterisk) for the Turkish algae flora (Taşkın 2019). A large number of new records are 26 Charophyta taxa (Şahin 2019), most of which belong to the genera Cosmarium (15) and Staurastrum (5) (Şahin & Akar 2019a). Three Chlorophyta newly revealed species belong to Chlorococcales and Chlamy do mo nadales and are commonly distributed taxa, which has been revealed only with a detailed study of col lec ted samples (Şahin & Akar 2019b).…”

New Records for the Turkish Freshwater Algal Flora in Twenty Five River Basins of Turkey, Part IV: Ochrophyta

“…These records were mainly found in Susurluk, Sakarya, Fırat -Dicle, Yeşilırmak, Marmara, Doğu Karadeniz, Çoruh, Burdur, and Antalya basins. It has been seen that the contribution to new records is highest in Sakarya and Fırat -Dicle basins which have the largest surface area (Aysel et al, 1993;Öztürk et al, 1995a, 1995bŞahin, 2000, 2007, 2009Yağcı & Turna, 2002;Atıcı, 2002;Baykal et al, 2009;Sevindik et al, 2010Sevindik et al, , 2011Sevindik et al, , 2015Sevindik et al, , 2017Özer et al, 2012;Akar & Şahin, 2014;Yüce & Ertan, 2014;Varol & Fucikova, 2015;Varol & Şen, 2016;Maraşlıoğlu & Soylu, 2018;Şahin & Akar, 2019aŞahin & Akar, , 2019bMorkoyunlu & Aktaş, 2020). As a consequence of these studies, the total number of taxa have increased in Turkey (Taşkın et al, 2019;Maraşlıoğlu & Gönülol, 2020).…”