Results 11 to 20 of about 7,024 (155)

Photoacclimation of cryptophytes and diatoms to light variability in the Western Antarctic Peninsula. [PDF]

J Phycol
Abstract Meltwater stratification during austral summer along the rapidly warming Western Antarctic Peninsula (WAP) exposes coastal phytoplankton to sudden light shifts. Such variability is thought to modulate phytoplankton dynamics, yet the photoacclimation capacity of Antarctic phytoplankton, especially cryptophytes, remains unclear.
Ferreira A, Costa RR, Jesus B, Brito AC, Silveira SB, Brotas V, Guerreiro CV, Secchi ER, Mendes CRB.   +8 more
europepmc   +2 more sources

The genus Eutreptiella (Euglenophyceae/Euglenozoa) across its global distribution range. [PDF]

Ecol Evol
The genus Eutreptiella across its global distribution range. Abstract The genus Eutreptiella (Euglenophyceae/Euglenozoa) comprises unicellular organisms known for their photosynthetic capacity and significant role in marine ecosystems. This review highlights the taxonomic, ecological, and biotechnological characteristics of Eutreptiella species ...
Hernández Márquez S, Zamudio-Resendiz ME, Murrieta-Alarcón M, Núñez Resendiz ML, Dreckmann KM, Sentíes A.   +5 more
europepmc   +2 more sources

Spatiotemporal variability of dissolved inorganic macronutrients along the northern Antarctic Peninsula (1996–2019)

Limnology and Oceanography, Volume 68, Issue 10, Page 2305-2326, October 2023., 2023
Abstract The northern Antarctic Peninsula is a key region of the Southern Ocean due to its complex ocean dynamics, distinct water mass sources, and the climate‐driven changes taking place in the region. Despite the importance of macronutrients in supporting strong biological carbon uptake and storage, little is known about their spatiotemporal ...
Thiago Monteiro, Sian F. Henley, Ricardo César Gonçalves Pollery, Carlos Rafael Borges Mendes, Mauricio Mata, Virginia Maria Tavano, Carlos Alberto Eiras Garcia, Rodrigo Kerr   +7 more
wiley   +1 more source

Ocean acidification affects pigment concentration and photoprotection of marine phytoplankton

Limnology and Oceanography, Volume 68, Issue 4, Page 831-844, April 2023., 2023
Abstract Ocean acidification produces significant changes on phytoplankton physiology that can affect their growth and primary production. Among them, a downregulation of the enzymatic activity and the production of different cellular metabolites, including chlorophyll a (Chl a), has been observed in high CO2 cultures under stable conditions.
Paulo Alcaraz‐Rocha, Júlia Puig‐Fàbregas, José Luis Garrido, Cristina Sobrino   +3 more
wiley   +1 more source

Modelling ecological communities when composition is manipulated experimentally

Methods in Ecology and Evolution, Volume 14, Issue 2, Page 696-707, February 2023., 2023
Abstract In an experimental setting, the composition of ecological communities can be manipulated directly. Starting from a pool of n species, it is possible to co‐culture species in different combinations, ranging from monocultures, to pairs, and all the way up to the full species pool.
Abigail Skwara, Paula Lemos‐Costa, Zachary R. Miller, Stefano Allesina   +3 more
wiley   +1 more source

Fisheries management influences phytoplankton biomass of Amazonian floodplain lakes

Journal of Applied Ecology, Volume 58, Issue 4, Page 731-743, April 2021., 2021
Tropical freshwaters fisheries typically assume that fish biomass is controlled by bottom‐up mechanisms, so that overexploitation of large predators would not affect overall ecosystem productivity. Our results, however, show that top‐down forces are important drivers of primary productivity in tropical lakes, above and beyond the effects of bottom‐up ...
João Vitor Campos‐Silva, Carlos A. Peres, João Henrique Fernandes Amaral, Hugo Sarmento, Bruce Forsberg, Carlos Roberto Fonseca, Steven Vamosi   +6 more
wiley   +1 more source

Avaliação da estrutura da comunidade fitoplanctônica em várzeas amazônicas frente às variações hidrológicas, ambientais e espaciais [PDF]

, 2015
Dissertação (mestrado)—Universidade de Brasília, Instituto de Ciências Biológicas, Programa de Pós-Graduação em Ecologia, 2015.O pulso de inundação é a principal força estruturadora ambiental e biológica das planícies alagáveis, mas nem sempre é capaz de
Kraus, Cleber Nunes
core   +1 more source

INNOVATIVE METHODOLOGIES FOR PREDICTING ECOLOGICAL QUALITY IN RESERVOIRS (ALQUEVA, SOUTHERN PORTUGAL) [PDF]

, 2017
No século XXI a escassez de água é uma realidade que constitui uma ameaça para a biosfera e para a humanidade. Esta situação representa um importante fator limitativo ao desenvolvimento socioeconómico, sendo frequente a observação de transgressões.
Morais, Manuela, Novais, Maria Helena, Penha, Maria Alexandra, Potes, Miguel, Salgado, Rui   +4 more
core   +1 more source

Distribuição do Fitoplâncton no Entorno da Reserva Biológica Marinha do Arvoredo

Metodologias e Aprendizado, 2019
O fitoplâncton constitui um dos principais componentes dos sistemas aquáticos marinhos e sua distribuição é influenciada por vários fatores ambientais, tais como, nutrientes e luz, além de temperatura, turbidez e oxigênio dissolvido.
Viviane Tranker, Andrea Freire, Mathias Schramm   +2 more
doaj   +1 more source

Evaluation of the sampling methods applied to phycoperiphyton studies in the Ratones River estuary, Brazil Avaliação dos métodos de coleta aplicados no estudo do ficoperifíton no estuário do rio Ratones, SC, Brasil

Acta Limnologica Brasiliensia, 2010
AIM: The present study aimed on testing the efficiency of four sampling methods for identification and quantification applied in studies on the biodiversity and spatial-temporal distribution of the phycoperiphyton in the Ratones River estuary; METHODS ...
Bianca Vettorato, Roselane Laudares-Silva, Dávia Talgatti, Mariângela Menezes   +3 more
doaj   +1 more source