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

