Results 31 to 40 of about 2,353 (151)

Ficoflora de ambientes lênticos: estudo preliminar da região de Charqueadas, Rio Grande do Sul, Brasil, com vistas à avaliação ambiental Metaphyton, benthos and phytoplantonic communities in lentic systems in the region of Charqueadas Rio Grande do Sul, Brazil

Acta Botânica Brasílica, 1987
São apresentados os resultados do estudo do metafíton, bentos e de comunidades fitoplanctônicas ocorrentes em ambientes lênticos de Charqueadas e municípios vizinhos, região esta sujeita à influência de mineração e processamento de carvão mineral.
Zulanira Meyer Rosa, Ieti Ungaretti, Lisete Maria Kremer, Sandra Maria Alves da Silva, Vera Lucia Maröstica Callegaro, Vera Regina Werner   +5 more
doaj   +1 more source

Sedimentary DNA and Fossil Archives Reveal Long‐Term Phytoplankton Shifts and Their Biogeochemical Influence in a Subtropical Lake

Molecular Ecology, Volume 35, Issue 16, August 2026.
ABSTRACT Understanding long‐term phytoplankton community dynamics is essential for assessing ecological resilience and informing lake management under global change. However, centennial‐scale patterns of phytoplankton dynamics remain poorly resolved due to the limited taxonomic resolution of traditional fossil‐based paleoecological approaches.
Yu Zhao, Jianan Zheng, Meifang Zhong, Wenxiu Zheng, Bo Qin, Kexin Zhu, Chenxue Zhang, Yanjie Zhao, Enlou Zhang, Eric Capo, Rong Wang   +10 more
wiley   +1 more source

Polyphyly and homoplasic structures in rhizosolenioid diatom genera: a review [PDF]

Plant Ecology and Evolution, 2019
Background and aims – Traditionally, extant rhizosolenioid diatom genera have been placed in a single family, the Rhizosoleniaceae. However, preliminary molecular data suggested that the family might be polyphyletic. Therefore, a literature review of the
Richard Jordan, Matt P. Ashworth, Yuki Uezato, Schonna Manning   +3 more
doaj   +3 more sources

Changing Pacific Salmon Nursery Lake Ecosystem Dynamics Over Centuries to Millennia: Insights From Sedimentary DNA Metabarcoding

Environmental DNA, Volume 8, Issue 4, July‐August 2026.
Sedimentary DNA metabarcoding tracks long‐term eukaryotic community change in Pacific salmon nursery lakes, revealing potential land‐use and climate influences on algal communities and resilience indicators. ABSTRACT Pacific salmon are keystone species in North Pacific freshwater, riparian, and marine ecosystems, but many populations have declined or ...
Yuanyu Cheng, David Walsh, Joanna Gauthier, Daniel Selbie, Irene Gregory‐Eaves   +4 more
wiley   +1 more source

The nomenclature and type locality of Berkeleya adeliensis (Bacillariophyceae): a correction [PDF]

Plant Ecology and Evolution, 2019
Background and aims – Berkeleya adeliensis was described in 1990 by Medlin, unfortunately with an error in its typification. This note discusses and corrects the error.Key results and conclusions – The type locality is in McMurdo Sound, Antarctica, not ...
Linda Medlin
doaj   +3 more sources

Taxonomic Structure and Diversity of Benthic Diatoms (Bacillariophyta) in the Northern Shelf of the Black Sea

Phycology, 2023
The key role of benthic diatoms in coastal ecosystems highlights the relevance of studying their biodiversity and developing integrated biodiversity conservation measures.
Elena Nevrova
doaj   +1 more source

Primary productivity coupled to oxic methane production in coastal waters of southern China

Limnology and Oceanography Letters, Volume 11, Issue 4, July 2026.
Abstract Oxic methane (CH4) production (OMP) occurs in diverse oxygenated surface waters worldwide. However, phytoplankton‐driven OMP in natural marine environments remains poorly documented. During a research cruise in the highly productive southern East China Sea, we measured OMP by incubating phytoplankton‐rich surface waters and found that CH4 ...
Yuming Rao, Guang Gao, Mina Bizic, Ilana Berman‐Frank, Kunshan Gao   +4 more
wiley   +1 more source

Polymorphism in Mastogloia (Bacillariophyceae) revisited [PDF]

Plant Ecology and Evolution, 2019
Background and aims – Mastogloia grevillei has been shown to be a polymorphic diatom species, producing frustules with morphology of Mastogloia grevillei, frustules with morphology of M.
Mark Edlund, David Burge
doaj   +3 more sources

Multidimensional Insights Into the Drivers of Aquatic CO2 Dynamics: A River–Reservoir–Wetland Aquatic Continuum Study Within a Semi‐Arid Region

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract Evaluating multiple competing biotic and abiotic processes and how they interact with carbon dioxide (CO2) in aquatic systems, is critical to understanding regional and global carbon cycles. Here, we used an aquatic continuum of the Bahe watershed, within a semi‐arid region, to establish a comprehensive conceptual framework for identifying CO2
Mingyu Shao, Zaihua Liu, Sibo Zeng, Hailong Sun, Haibo He, Qiang Li, Qian Bao, Liangxing Shi, Junyao Yan, Qiufang He, Yan Fang, Min Zhao   +11 more
wiley   +1 more source

SAPANCA GÖLÜ'NÜN KlYI BÖLGESİ SEDİMANLARI ÜZERİNDE YAŞAYAN ALG TOPLULUKLARININ MEVSİMSEL DEGİŞİMİ

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 1999
Eylül ı 995-Ağustos ı 996 tarihleri arasında affected the density of algae. The aı n o unt of yapılan bu çalışmada, Sapanca Gölü' n ün kıyı bölgesi sedimanlan üzerinde yaşayan alg topluluklannın kompozisyon yoğu nluklan ve mevsimsel değişimleri ...
AYNUR BOZATLI, MAHMUT ÖZACAR, İ AYHAN" ŞENGİL   +2 more
doaj   +1 more source