Results 31 to 40 of about 1,609 (153)

Nutritional content of phytoplankton communities under ice

open access: yesEcosphere, Volume 17, Issue 9, September 2026.
Abstract The effects of winter environmental conditions on lake ecology can be highly variable. Ice and overlying snow isolate the water below, impeding exchange of materials among water, atmosphere, and the watershed. Even with these limitations, biological communities under the ice can persist, where cold‐tolerant taxa can be especially abundant ...
Michael F. Meyer   +9 more
wiley   +1 more source

Fitoplâncton do rio Gastona (Tucumán, Argentina): Cyanophyta, Chlorophyta, Euglenophyta y Rhodophyta. [PDF]

open access: yes, 2004
O presente trabalho teve como objetivo avaliar a composição da ficoflora do rio Gastona (Tucumán, Argentina) pertecente às divisões Cyanophyta, Chlorophyta, Euglenophyta e Rhodophyta, nos anos 1994, 1998 e 1999. Foram selecionados cinco estações ao longo
Mirande, Virginia   +1 more
core   +1 more source

Simuliofauna do rio Marumbi, Morretes - PR, Brasil: microalgas como alimento de larvas de Simulium incrustatum Lutz, 1910 (Diptera, Simuliidae)

open access: yesMemorias do Instituto Oswaldo Cruz, 1989
Estuda-se a ficoflórula do conteúdo intestinal de larvas do Simulium incrustatum, num período de 18 meses com 18 amostras, em 1983/84. A identificação até gênero, foi feita com material a fresco e material montato em lamínula.
Julio Dellome Filho
doaj   +1 more source

Photosynthetic primary production in the Mesoproterozoic

open access: yesNew Phytologist, Volume 251, Issue 1, Page 64-80, July 2026.
Summary The Mesoproterozoic atmosphere had more CO2 and less O2 than at present. While the upper ocean was oxygenated, the deeper ocean was euxinic or ferruginous. Primary production was performed by Chlorobia, Cyanobacteria, Proteobacteria, and Archaeplastida.
Patricia Sánchez‐Baracaldo   +1 more
wiley   +1 more source

A unique sessile loricate euglenid, Lepocinclis loricata sp. nov. (Euglenophyta, Phacaceae), from South Africa: Evolutionary implications

open access: yesJournal of Phycology, Volume 62, Issue 3, Page 846-854, June 2026.
Abstract In this paper, we describe Lepocinclis loricata sp. nov. (Phacaceae), a sessile loricate euglenid that differs from all known loricate taxa by its unique combination of the presence of a lorica, monad morphology, sessile habit, and phylogenetic position within the Phacaceae. Populations of this species inhabit two turbid, silt‐rich waterbodies,
Bożena Zakryś   +3 more
wiley   +1 more source

Phytoplankton communities as indicator of trophic state in some habitats of Batanghari River system in Sumatera Island, Indonesia [PDF]

open access: yesBIO Web of Conferences
Deforestation, land use change, expansion of agriculture, which may have an impact water quality in Batanghari River habitat. Phytoplankton composition, abundance, diversity and functional group were observed to know the trophic and ecological status of ...
Sulastri Sulastri   +3 more
doaj   +1 more source

Comparison between fluorometry and microscopy‐based phytoplankton assessments in the Laurentian Great Lakes

open access: yesLimnology and Oceanography: Methods, Volume 24, Issue 5, May 2026.
Abstract Photosynthetic pigment fluorescence is commonly used in limnology and oceanography as a proxy for phytoplankton biomass. Fluorometry has been used to detect subsurface algal blooms, characterize dynamics of the deep chlorophyll layer, and to provide greater vertical resolution to phytoplankton monitoring.
Katya E. Kovalenko   +6 more
wiley   +1 more source

Видовий склад угруповань водоростей р. Стир у межах Рівненської області

open access: yesНауковий вісник Східноєвропейського національного університету імені Лесі Українки: Серія: Біологічні науки, 2018
Наведено результати дослідження видового складу угруповань водоростей середньої течії р. Стир у межах Волинської височини та нижньої течії в межах Волинського Полісся на території Рівненської області.
Inna Tolochyk, Vitaliy Volodymyrets
doaj   +1 more source

A Systematic Review of Biofloc Technology and Periphyton in Giant Freshwater Prawn (Macrobrachium rosenbergii) Aquaculture

open access: yesAquaculture, Fish and Fisheries, Volume 6, Issue 2, April 2026.
Biofloc technology and periphyton‐based systems enhance the sustainable production of giant freshwater prawn (Macrobrachium rosenbergii). A PRISMA‐guided review (2005 – 2024) shows that BFT improves survival (75 – 78 %) and feed efficiency, while periphyton supports natural productivity in grow‐out.
Md. Abdul Halim   +7 more
wiley   +1 more source

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