Results 101 to 110 of about 51,969 (245)

Strategic Roadmap for Addressing Microplastic Pollution in the Global South: Bridging Monitoring Gaps, Harmonizing Methods, and Building Analytical Capacity

open access: yesEnvironmental Quality Management, Volume 35, Issue 4, Summer 2026.
ABSTRACT Microplastic (MP) pollution represents a growing environmental challenge, especially in tropical and subtropical coastal regions of the Global South, where methodological fragmentation, funding discontinuity, and dependence on external analytical infrastructure limit the production of comparable data and the formulation of evidence‐based ...
Guilherme Malafaia   +1 more
wiley   +1 more source

Spatial and temporal changes in macrobenthic communities in the Amazon coastal zone (Guajará Estuary, Brazil) caused by discharge of urban effluents

open access: yesScientia Marina, 2012
Spatial and temporal changes in the structure of soft-bottom macrobenthic communities caused by discharges of urban wastewater were studied in the Guajará Estuary, Amazon coastal zone, Brazil.
Daiane Aviz   +2 more
doaj   +1 more source

Into the Wild: Farm‐Derived Energy and Nutrients Enter Marine Food Webs With Carrying Capacity Implications for Aquaculture Management

open access: yesReviews in Aquaculture, Volume 18, Issue 3, June 2026.
ABSTRACT Marine aquaculture is expanding globally, yet its interactions with surrounding ecosystems remain complex and insufficiently understood. This study reviews the fluxes of energy and nutrients from three major aquaculture systems: finfish cages, suspended bivalves, and seaweed farms and considers their implications for ecosystem functioning and ...
Myriam D. Callier   +11 more
wiley   +1 more source

WDS-YOLO: A Marine Benthos Detection Model Fusing Wavelet Convolution and Deformable Attention

open access: yesApplied Sciences
Accurate marine benthos detection is a technical prerequisite for underwater robots to achieve automated fishing. Considering the challenges of poor underwater imaging conditions during the actual fishing process, where small objects are easily occluded ...
Jiahui Qian, Ming Chen
doaj   +1 more source

Trawling disturbance on benthic ecosystems and consequences on commercial species: a northwestern Mediterranean case study

open access: yesScientia Marina, 2014
Trawling is known to disturb benthic communities and habitats, which may in turn indirectly affect populations of commercial species that live in close association with the seabed.
Alba Muntadas   +3 more
doaj   +1 more source

Secondary production (zooplankton and benthos)

open access: yes, 1983
In order to understand the dynamics of an ecosystem, it is necessary to determine the contribution of the different groups to total biomass as well as to evaluate their turnover rates and the amount of organic matter that each produces per unit time.
Lévêque, Christian, Saint-Jean, Lucien
openaire   +2 more sources

Mixing at the Margins Drives Nitrate Delivery During Downwelling

open access: yesGeophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract Wind‐driven coastal upwelling delivers nutrients to the surface waters and enhances primary productivity. In contrast, downwelling transports nutrient‐depleted water away from the surface and is usually presumed to decrease primary production. Here, we show that processes during downwelling can actually pump nutrients into previously nutrient ...
Bofu Zheng   +4 more
wiley   +1 more source

Investigation of bottom fishing impacts on benthic structure using multibeam sonar, sidescan and video [PDF]

open access: yes, 2005
Bottom fishing gear is known to alter benthic structure, however changes in the shape of the sea floor are often too subtle to be detected by acoustic remote sensing.
Malik, Mashkoor A., Mayer, Larry A.
core   +1 more source

Catchment Influences on Carbon Stable Isotope Variation in Trout; Might It Be Methane?

open access: yesEcology and Evolution, Volume 16, Issue 5, May 2026.
Trout stable carbon isotope values vary significantly and appear to relate to catchment characteristics. Low carbon stable isotope values are linked to catchments with low drainage soil and high cover of pasture land use. This is likely to be linked to high levels of methane‐derived carbon entering the stream food web.
Michael Hinchliffe   +5 more
wiley   +1 more source

Technical note: The effects of five different defaunation methods on biogeochemical properties of intertidal sediment [PDF]

open access: yes, 2012
Various methods have been used to remove organisms from sediments to investigate structure and function of faunal assemblages in intertidal habitats. Nevertheless, little is known about how these treatments affect properties of the sediments themselves ...
Chapman, M.G.   +3 more
core   +1 more source

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