Results 51 to 60 of about 30,460 (306)

Bed‐level tools for monitoring erosion and accretion patterns: Flume validation and field testing

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Monitoring short‐term changes in surface sediment elevation is fundamental to understanding erosion, transport, and deposition dynamics in shallow coastal environments. However, commonly used field approaches, such as horizontal markers, sediment erosion tables, subsurface sediment plates, or erosion pins, are not always cross‐validated under ...
Lucía Rodríguez‐Arias   +6 more
wiley   +1 more source

Long-term trajectory of some elasmobranch species off the Tuscany coasts (NW Mediterranean) from 50 years of catch data

open access: yesScientia Marina, 2013
The time series of elasmobranch catch rates off the Tuscany coasts (NW Mediterranean) were investigated by means of min/max auto-correlation factor analysis in order to estimate variations in population abundance and evaluate the influence of ...
Alessandro Ligas   +4 more
doaj   +1 more source

Using a social‐ecological macrosystems framework to understand how human activities alter ecological synchrony

open access: yesPeople and Nature, EarlyView.
Abstract Different aspects of ecological systems, biotic or abiotic, often fluctuate in coordinated patterns over space and time. Such high concordance between ecological processes is often referred to as ecological synchrony. Human activities, including and beyond climate change, have the potential to alter ecological synchrony by disrupting or ...
Yiluan Song   +9 more
wiley   +1 more source

The Impact and Role of Shrimp Trawling Fishery for Kuwait's Seafood Security

open access: yesAquaculture, Fish and Fisheries
Shrimp trawling contributes to seafood supply for coastal communities, but it also captures high amounts of non‐target species (i.e., bycatch), which are often discarded.
Abdulrahman Ben‐Hasan   +3 more
doaj   +1 more source

Assessing bottom trawling impacts based on the longevity of benthic invertebrates

open access: yesJournal of Applied Ecology, 2018
Bottom trawling is the most widespread human activity directly affecting seabed habitats. Assessment and effective management of the effects of bottom trawling at the scale of fisheries requires an understanding of differences in sensitivity of biota to ...
J. Hiddink   +13 more
semanticscholar   +1 more source

Incorporating environmental DNA metabarcoding for improved benthic biodiversity and habitat mapping

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Seafloor imagery is commonly used to collect information about the distribution of benthic organisms in order to generate habitat and biodiversity maps. Recent advances in genomics (e.g., environmental DNA; eDNA) show potential to complement video surveys for habitat mapping, but there have been few examples testing this.
Rylan J. Command   +8 more
wiley   +1 more source

Effects of Trawling on Seamounts [PDF]

open access: yesOceanography, 2010
Trawling involves the towing of nets through the water or along the seafloor to sieve out fish and marine invertebrates. It is the most widely used method to catch fish throughout the world, and there are many variations in gear design and towing methods.
Malcolm R. Clark
doaj  

Small-scale spatial variations of trawling impact on food web structure

open access: yesEcological Indicators, 2019
Bottom trawling is one of the main anthropogenic pressures that impact soft-bottom habitats, directly affecting benthic and demersal communities, as well as their food web structure. To analyse local scale impacts of bottom trawling on food web structure
I. Preciado   +6 more
semanticscholar   +1 more source

A Scenario Tool for Sustainability Transformation in Fisheries and Beyond

open access: yesSustainable Development, EarlyView.
ABSTRACT The urgency to find sustainable management solutions intensifies with increasing natural resource scarcity. Resource sectors are usually characterized by diverse resource users. We developed a structured scenario tool designed to quantitatively assess policy options for achieving sustainability, accounting for ecological, economic and ...
Marie‐Catherine Riekhof   +5 more
wiley   +1 more source

Aspects of the reproductive biology and characterization of Sciaenidae captured as bycatch in the prawn trawling in the northeastern Brazil

open access: yesActa Scientiarum: Biological Sciences, 2015
The Brazilian prawn fishery, as other bottom trawling fisheries, is considered quite efficient in catching the target species but with low selectivity and high rates of bycatch. The family Sciaenidae prevails among fish species caught.
Carlos Antonio Beserra da Silva Júnior   +3 more
doaj   +1 more source

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