Results 231 to 240 of about 4,537 (254)

Exploratory bottom trawling in Lake Victoria

2021
When the Lake Victoria Fisheries Research Project began, the background information necessary for the successful application of quantitative stock assessment was lacking. For this. reason and also due to the size of Lake Victoria, the complexity and variety of its many habitats, and its multispecies fishery, it was decided that initial stock assessment
Bergstrand, E., Cordone, A.J.
openaire   +1 more source

A Transactional and Collaborative Approach to Reducing Effects of Bottom Trawling

Conservation Biology, 2013
Abstract Private‐sector financial and legal transactions have long been used to protect terrestrial habitats and working landscapes, but less commonly to address critical threats in marine environments. Transferrable and marketable fishing privileges, including permits and quotas, make it possible to use private‐sector transactions as
Mary, Gleason, Erika M, Feller, Matt, Merrifield, Stephen, Copps, Rod, Fujita, Michael, Bell, Steve, Rienecke, Chuck, Cook   +7 more
openaire   +2 more sources

The geometrical gear shape of a bottom trawl

Ocean Engineering, 2014
Abstract An estimation of the gear shape during a bottom trawl can be achieved through geometrical modeling of the trawl system. This can be implemented by processing the field data obtained using the Scanmar system. The gear shape from the square through the bag net was assumed to be the upper and lower parts of different elliptic cones of which the
openaire   +1 more source

Quantifying the carbon benefits of ending bottom trawling

Nature, 2023
Jan Geert Hiddink, Sebastiaan J. van de Velde, Robert A. McConnaughey, Emil De Borger, Justin Tiano, Michel J. Kaiser, Andrew K. Sweetman, Marija Sciberras   +7 more
openaire   +2 more sources

Dynamic Analysis of Trawl Doors Applied in Bottom Trawls to Catch Shrimp

2016
This work deals with the dynamic analysis of a new design of trawl doors. The model is constrained to steady towing conditions with velocity constant, flat seabed and gear symmetry. The Ordinary Differential Equations (ODE) of the system includes the effects of the warp and the ropes in terms of external forces. In the mathematical model the influences
S. Sarmiento-Nafaté, J. Enríquez-Zárate, J. Villalobos-Toledo, C. Pineda-García   +3 more
openaire   +1 more source

Bottom trawl teuthofauna of the Aegean Sea

1997
The bathymetric distribution and catch composition of cephalopods in the Aegean Sea were investigated. For this purpose a total of 292 bottom trawls were carried out seasonally during 1991 and 1992. Sampling depths ranged between 20 and 500 m. A total of 30 species were recorded, with Sepiola intermedia and Histioteuthis bonnellii being found in the ...
Salman, A, Katagan, T, Benli, HA
openaire   +2 more sources

Quantifying the Physical Impact of Bottom Trawling Based on High-Resolution Bathymetric Data

Remote Sensing, 2022
Mischa Schönke, David Clemens, Peter Feldens   +2 more
exaly  

Bottom trawling noise: Are fishing vessels polluting to deeper acoustic habitats?

Marine Pollution Bulletin, 2021
Eoghan Daly, Martin White
exaly  

What a drag: Quantifying the global impact of chronic bottom trawling on continental shelf sediment

Journal of Marine Systems, 2016
Ferdinand K J Oberle, Curt D Storlazzi, Till J J Hanebuth   +2 more
exaly  

Deciphering the lithological consequences of bottom trawling to sedimentary habitats on the shelf

Journal of Marine Systems, 2016
Ferdinand K J Oberle, Peter W Swarzenski, Christopher M Reddy   +2 more
exaly