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Full-Text Articles in Life Sciences
Some Factors Affecting The Abundance Of Phytoplankton In An Unproductive Alkaline Lake (Lake Hazar, Turkey), Mehmet Ali̇ Turan Koçer, Bülent Şen
Some Factors Affecting The Abundance Of Phytoplankton In An Unproductive Alkaline Lake (Lake Hazar, Turkey), Mehmet Ali̇ Turan Koçer, Bülent Şen
Turkish Journal of Botany
This study aimed to explain the seasonal and vertical distribution of phytoplankton in the pelagic zone of a deep alkaline lake that is characterized by low phytoplankton abundance. Phytoplankton and water samples were collected seasonally from 9 points and 7 depths between the surface and 20 m from December 2004 to September 2005. Planktolyngbya contorta was the dominant or subdominant species in all seasons and depths. The dominance of Gomphonema species was observed in December, but they were subdominant in September. Cyclotella meneghiniana was dominant at 20 m and subdominant in the upper depths during March, June, and September. Melosira …
Bucklandiella Seppeltii, A New Species Of Grimmiaceae From Australasia, And Its Phylogenetic Position Based On Molecular Data, Halina Bednarek-Ochyra, Ryszard Ochyra, Jakub Sawicki, Monika Szczecinska
Bucklandiella Seppeltii, A New Species Of Grimmiaceae From Australasia, And Its Phylogenetic Position Based On Molecular Data, Halina Bednarek-Ochyra, Ryszard Ochyra, Jakub Sawicki, Monika Szczecinska
Turkish Journal of Botany
A new species, Bucklandiella seppeltii Bednarek-Ochyra, Ochyra, Sawicki & Szczecinska, is delimited by its distinct morphology and biogeography. The geographical range of the new species is restricted to the southern-temperate and southern-cool-temperate zones of Tasmania and New Zealand, with maximum occurrence on the South Island of the latter insular country. The species is described and illustrated and its distribution is mapped. The systematic position of B. seppeltii is revealed to be a sister to New Zealand B. allanfifei Bednarek-Ochyra & Ochyra by molecular evidence based on parsimony analysis of nuclear sequences. In some morphological and anatomical traits, B. seppeltii is …