Results 111 to 120 of about 95,233 (325)

Light–dark conditions drive variability in phosphorus and ammonium uptake by epilithic biofilms along the main stem of a Mediterranean river

open access: yesLimnology and Oceanography, EarlyView.
Abstract Benthic biofilms on cobbles (i.e., epilithic biofilms) control the uptake of soluble reactive phosphorus (SRP) and ammonium (NH4+) in headwater streams. However, nutrient uptake by biofilms in higher‐order rivers, particularly those affected by anthropogenic nutrient inputs and hydrological regulation, remains poorly understood.
David Pineda‐Morante   +4 more
wiley   +1 more source

Biodiversity, community structure and function of biofilms in stream ecosystems [PDF]

open access: yes, 2015
Multi-species, surface-attached biofilms often dominate microbial life in streams and rivers, where they contribute substantially to biogeochemical processes.
Besemer, Katharina
core   +1 more source

Revisiting the silicon isotopic signal of sponge skeletons and its implications

open access: yesLimnology and Oceanography, EarlyView.
Abstract This study investigates the relationship between the silicon (Si) isotopic composition of sponge skeletal silica (δ30SibSi) and seawater characteristics in sponge habitats, specifically the concentration of dissolved silicic acid and its Si isotopic signature (δ30SidSi).
Manuel Maldonado, Katharine R. Hendry
wiley   +1 more source

Summary of Coral Cay Conservation's habitat mapping data from Utila, Honduras [PDF]

open access: yes, 2002
IIThe coral reefs of Honduras are of vital national and international importance,both ecologically and economically, but are threatened because of rapid economicand population growth.?
Afzal, D   +4 more
core  

Ascidians increase in abundance on tropicalized reefs and may enhance benthic nitrous oxide production

open access: yesLimnology and Oceanography, EarlyView.
Abstract Nitrous oxide (N2O) is an ozone‐depleting greenhouse gas that has a global warming potential nearly 300 times greater than carbon dioxide. Although the oceans contribute about 21% of atmospheric global N2O emissions, we know relatively little about N2O dynamics in nearshore systems. Here, we document the fourfold increase in the abundance of a
Zuhairah Dindar   +5 more
wiley   +1 more source

Land influence decouples benthic nutrient fluxes on the Siberian Arctic Ocean shelves

open access: yesLimnology and Oceanography Letters, EarlyView.
Abstract Land permafrost thaw transfers increasing amounts of organic matter and nutrients to the Arctic Ocean. These nutrients could stimulate primary production directly, or indirectly following remineralization in sediments. Projections of this effect are limited by scarce observations and poor understanding of the underlying controls.
Birgit Wild   +10 more
wiley   +1 more source

Severity gradient of anthropogenic activities along the Egyptian Western Mediterranean coast, utilizing benthic Foraminifera as bio-indicators

open access: yesEgyptian Journal of Aquatic Research, 2022
Three locations along the western Mediterranean coastal zone of Egypt (Abu Qir Bay, El Max Bay, and Marsa Matrouh), have been exposed to different anthropogenic sources that threatened the benthic ecosystem conditions.
Amani Badawi   +5 more
doaj  

Age‐based δ15N and δ13C values of otolith organic matter reveal trophic ecology in marine fishes

open access: yesLimnology and Oceanography Letters, EarlyView.
Abstract Fish inhabiting similar environments face space and resource constraints, develop diverse feeding strategies, and adjust their trophic niches during ontogeny to reduce competition. To investigate this process, we reconstructed the trophic trajectory of five species of the family Sciaenidae by analyzing δ13C and δ15N values in otolith organic ...
Mu‐Ting Li   +8 more
wiley   +1 more source

The Biodiversity and Distribution of Abyssal Benthic Foraminifera and Their Possible Ecological Roles: A Synthesis Across the Clarion-Clipperton Zone [PDF]

open access: gold, 2021
Andrew J. Gooday   +10 more
openalex   +1 more source

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