Results 41 to 50 of about 105,818 (342)

Florida's West Coast inlets: shoreline effects and recommended action [PDF]

, 1987
This report responds to the 1986 Beaches Bill which, in recognition of the potential deleterious impact on Florida's beaches of inlets modified for navigation, mandated a study of those inlets with identification of recommended action to reduce the ...
Dean, Robert G., O'Brien, M. P.
core  

The substantial first impact of bottom fishing on rare biodiversity hotspots: a dilemma for evidence-based conservation [PDF]

, 2013
The present study set out to describe the impact of a single first passage of two types of bottom fishing gear on rare protected shellfish beds formed by the horse mussel Modiolus modiolus.
Cook, Robert Lewis, Fariñas-Franco, Jose, Gell, Fiona, Holt, Rohan, Holt, Terry, Lindenbaum, Charles, Porter, Joanne, Sanderson, William, Seed, Raymond, Skates, Lucie, Stringell, Thomas   +10 more
core   +3 more sources

Boron availability and fertilizer response of maize in soils from sub‐Saharan Africa

Journal of Plant Nutrition and Soil Science, EarlyView.
Abstract Background and aims Low boron (B) availability is associated with strongly weathered, coarse‐textured, and low organic matter soils, widespread in sub‐Saharan Africa (SSA). It is unknown to what extent B fertilization can increase maize yields in SSA.
Mirjam S. Breure, Elise Van Eynde, Samuel Njoroge, Regis Chikowo, Rob N. J. Comans, Ellis Hoffland   +5 more
wiley   +1 more source

Experimental investigation of cohesive soil erosion caused by translating submerged inclined water jets

Applied Ocean Research
Very limited research has been carried out to investigate sediment erosion caused by subaqueous inclined water jets, despite the fact that such water jets are used in subsea engineering (e.g., dredging, trenching, and deep sea mining).
Said Alhaddad, Andrew Snyder, Sterre V. Bult, Geert Keetels   +3 more
doaj   +1 more source

Environmental monitoring of dredging at the Port of Angra dos Reis

Holos, 2019
Dredging activities in port areas are intended to expand the ports’ activities and maintain adequate depth in the access channels, berthing areas and basins of evolution. The environmental license granted for maintenance dredging in the port of Angra dos
Aurélio Lamare Soares Murta, Gabriel Etienne de Camargo Kvassay, Graciela S. Diniz, Marcos Aurélio Vasconcelos de Freitas, Maria da Penha Araujo Murta   +4 more
doaj   +1 more source

Contrasting effects of temperature across trophic levels in geothermally warmed soil food webs

Oikos, EarlyView.
Global warming is altering the structure and dynamics of ecological communities, with significant consequences for soil food webs. Rising temperatures are expected to accelerate metabolic rates in organisms, potentially altering species interactions, and the structure and energetics of food webs.
Estela Folch Chaos, Charlotte Alster, Louis Schipper, Andrew D. Barnes   +3 more
wiley   +1 more source

Research and experimental study on deep sea trench dredging suction head [PDF]

E3S Web of Conferences
To solve the problem of incomplete removal of silt and disturbance of gravel during the dredging process of the gravel foundation surface of immersed tube tunnels, a dredging suction head with dual functions of mechanical scraping and hydraulic conveying
He Ping, Wang Zeping, Sun Yunjia, Liu Wenhe   +3 more
doaj   +1 more source

Application of an Innovative Jet Pump System for the Sediment Management in a Port Channel: Techno-Economic Assessment based on Experimental Measurements

Journal of Marine Science and Engineering, 2020
The realization of infrastructures in coastal environment modifies water and sediment natural current regime. In particular, sediment can be entrained and accumulated in port infrastructure like docks, haling basins, or port entrances and channels ...
Marco Pellegrini, Giovanni Preda, Cesare Saccani   +2 more
doaj   +1 more source

Impact of dredging on the volute Cymbiolacca pulchra and its environment at Heron Island, Great Barrier Reef, Australia [PDF]

, 1992
The impact of dredging operations on the volute Gastropod (Cymbiolacca pulchra) population of a coral reef atoll (Heron Island, Great Barrier Reef, Australia) was investigated using data from annual surveys of the population and its environment ...
Catterall, C.P., Kerr, J., Poiner, I. R.
core  

The influence of multiple stressors on the spatial distribution of corals

People and Nature, EarlyView.
Abstract Coral reef ecosystems are widely threatened by global change, yet the cumulative impacts of multiple interacting stressors remain difficult to quantify over space and time. We evaluate how long‐term artisanal fishing effort, blast fishing, human population density and marine protected areas (MPAs) interact with biophysical and seascape ...
Jennifer Coyle Selgrath, Sarah E. Gergel, Amanda C. J. Vincent   +2 more
wiley   +1 more source