Results 41 to 50 of about 10,987 (264)

Food web architecture and basal resources interact to determine biomass and stoichiometric cascades along a benthic food web. [PDF]

PLoS ONE, 2011
Understanding the effects of predators and resources on primary producers has been a major focus of interest in ecology. Within this context, the trophic cascade concept especially concerning the pelagic zone of lakes has been the focus of the majority ...
Rafael D Guariento, Luciana S Carneiro, Adriano Caliman, João J F Leal, Reinaldo L Bozelli, Francisco A Esteves   +5 more
doaj   +1 more source

A global estimator of C and N isotope baselines for fresh waters

Methods in Ecology and Evolution, EarlyView.
Abstract Baselines are the pebbles in the shoes of isotope ecologists. The extreme variability of the isotope composition of resources at the base of food webs governs the spatial differences of consumers' isotope composition, so that isotope‐inferred trophic properties can be compared across ecosystems only after correction for baseline effects ...
Marie‐Elodie Perga, Stéphanie Bouletreau, Julien Cucherousset, Chris Harrod, Angus McIntosh, Julian D. Olden, Chloé Vagnon, Tim Jardine   +7 more
wiley   +1 more source

Deciphering the complex life cycle and partial migration of an ecological engineer and critical Neotropical fishery species, Prochilodus costatus

Journal of Fish Biology, EarlyView.
Abstract Understanding complex migration patterns, including drivers of partial migration and habitat use, is challenging but essential for conservation, as it determines a species' adaptative capacity in the face of environmental change and anthropogenic threats.
Alexandre Peressin, João de Magalhães Lopes, Francisco Ricardo Andrade Neto, Gilmara Junqueira Machado, Carlos Bernardo Mascarenhas Alves, Luis David Solis Murgas, Paulo Santos Pompeu   +6 more
wiley   +1 more source

Stomach content analyses of Simulium perflavum Roubaud 1906 (Diptera: Simuliidae) larvae from streams in Central Amazônia, Brazil

Memorias do Instituto Oswaldo Cruz, 2001
Stomach contents of Simulium perflavum Roubaud larvae were analyzed and compared with plankton and periphyton collected in five streams, in Central Amazonia (Manaus and Presidente Figueiredo counties), in Sep./Oct.1996 (dry season) and Feb./Mar.
Yamile B Alencar, Thelma A Veiga Ludwig, Climéia C Soares, Neusa Hamada   +3 more
doaj   +1 more source

Non‐native pink salmon Oncorhynchus gorbuscha carcasses benefit native benthic macroinvertebrates

Journal of Fish Biology, EarlyView.
Abstract The invasion of the North Atlantic by pink salmon Oncorhynchus gorbuscha has raised concerns regarding their impact on coastal rivers. Although the influence of marine‐derived nutrients from returning adult O. gorbuscha on rivers in their native range has received much attention, the ecological consequences of invasive O.
Hui Wei, Gordon H. Copp, Rasmus B. Lauridsen, Tea Bašić, Phil I. Davison, John F. Murphy, James L. Pretty, Michał E. Skóra, Gabriela Zemelka, John Iwan Jones   +9 more
wiley   +1 more source

Comparison of Periphyton Biomass on Coconut Coir and Bamboo Poles as Natural Substrates in Earthen Lined Pond

International Journal of Bio-Resource and Stress Management, 2020
As a first step in assessing the viability of periphyton-based shrimp production in lined pond aquaculture systems, the effects of natural substrates (split bamboo poles and coconut coir) on development of periphyton were evaluated.
A. Anix, Vivek Santhiya, S. Athithan, B. Ahilan   +3 more
doaj  

Main predictors of periphyton species richness depend on adherence strategy and cell size

PLoS ONE, 2017
Periphytic algae are important components of aquatic ecosystems. However, the factors driving periphyton species richness variation remain largely unexplored.
V. M. Algarte, T. Siqueira, V. Landeiro, L. Rodrigues, C. Bonecker, L. C. Rodrigues, Natália Fernanda Santana, S. Thomaz, L. M. Bini   +8 more
semanticscholar   +1 more source

Enzymatic strategies for phosphorus utilization in periphyton: A study of alkaline phosphatase kinetics in post‐mining lakes

Journal of Phycology, EarlyView.
Abstract Alkaline phosphatase (AP) plays an important role in phosphorus (P) cycling in aquatic ecosystems, particularly under nutrient limitation. In post‐mining lakes of Czechia, periphyton forms extensive mats despite chronic P deficiency, suggesting dissolved organic P (DOP) may serve as a key P source.
Eliška Konopáčová, Jiří Nedoma, Petr Čapek, Kateřina Čapková, Tomáš Bešta, Klára Řeháková   +5 more
wiley   +1 more source

THE MASS RATIO OF THE EPIPHYTIC PERIPHYTON OF THE NYÉKI-HOLT-DUNA [PDF]

Acta Geographica Debrecina. Landscape & Environment Series, 2016
The knowledge of the periphytic structure is important for the fact that the composition of epiphytic periphyton indicates the ecologically different habitats, the biological state of water-quality and its changes.
GYULA LAKATOS, ILDIKÓ MÁTRAI, JÁNOS KUNDRÁT, ISTVÁN GYULAI   +3 more
doaj   +1 more source

Topic Modeling of Fatty Acid Studies: Evaluating Environmental Changes in Freshwater Ecosystems

International Review of Hydrobiology, Volume 111, Issue 1, June 2026.
ABSTRACT Fatty acids (FAs) are biochemical molecules with vital structural and metabolic functions in all living organisms. Over the last decades, FA analysis in ecological studies has garnered significant attention due to its diverse applicability, such as taxonomic support for species identification, investigations on trophic interactions, and ...
A. C. Campos, B. Gücker, I. G. Boëchat
wiley   +1 more source