Results 51 to 60 of about 3,155 (256)

Causal analysis of trade loss from pathogens: A global study of foot and mouth disease impacts on meat exports

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Our general interest is in global trade loss from livestock pathogens, specifically exports. We adopt a causal inference approach that considers animal disease outbreaks over time as non‐staggered binary treatments with the potential for switching in (infection) and out of treatment (recovery) within the sample period. The outcome evolution of
Mohammad Maksudur Rahman   +1 more
wiley   +1 more source

The 'W' prawn-trawl with emphasised drag-force transfer to its centre line to reduce overall system drag. [PDF]

open access: yesPLoS ONE, 2015
For prawn trawling systems, drag reduction is a high priority as the trawling process is energy intensive. Large benefits have occurred through the use of multiple-net rigs and thin twine in the netting.
Cheslav Balash   +4 more
doaj   +1 more source

Evaluation of the California halibut trawl grounds

open access: yesCalifornia Fish and Wildlife Journal
The Marine Life Management Act (MLMA), California Fish and Game Code, sections 7050–7090, requires an ecosystem-based approach for managing the state’s fisheries, using the best available science, and involving stakeholders in a comprehensive and ...
Travis Tanaka   +5 more
doaj   +1 more source

Synergistic Integration of LiCF3SO3 in PVdF‐HFP/PVAc Polymer Blends: Multifaceted Analysis From Microstructure to Electrochemical Properties

open access: yesJournal of Applied Polymer Science, EarlyView.
Solid polymer electrolyte films of PVdF‐HFP/PVAc blend with LiCF3SO3 were prepared by solution casting. XRD, FESEM, and FTIR confirmed reduced crystallinity and enhanced amorphous nature. Ionic conductivity reached 3.46 × 10−4 S cm−1 for optimized SP4.
B. Praveen Kumar   +2 more
wiley   +1 more source

New records of rare marine fishes from the Gulf of Mannar, India [PDF]

open access: yesActa Ichthyologica et Piscatoria, 2014
The Gulf of Mannar is a haven for rare species, which along with their pristine reef habitats are under constant threat from natural phenomena and anthropogenic activities.
V.P. Padate, R. Rodrigues, C.U. Rivonker
doaj   +3 more sources

International Bottom Trawl Survey Working Group (IBTSWG) [PDF]

open access: yes, 2019
This report summarises the national contributions in 2018–2019 and the planning for the 2019–2020 surveys coordinated by the International Bottom Trawl Survey Working Group (IBTSWG). In the North Sea, the surveys are performed in quarters (Q) Q1 and Q3 while in the Northeast Atlantic the surveys are conducted in Q1, Q3, and Q4 with a suite of 14 ...
Alvested, Anja Helene   +39 more
openaire   +6 more sources

Utterance evolution: the road to generative, combinatorial communicators

open access: yesBiological Reviews, EarlyView.
ABSTRACT Language has long been considered uniquely complex in the animal kingdom; however, animal research over the last decade has begun to challenge some long‐standing premises about exactly which language capacities are uniquely human. The task of resolving why and how complex communication systems evolve, particularly human language, has ...
Catherine Crockford   +2 more
wiley   +1 more source

Bioeconomic analysis of the effects of modifying the trawl extension piece with T90 netting

open access: yesScientia Marina, 2018
We assessed the effect of the European discards ban on the profitability of bottom trawlers in a case study fishery (GSA06, NW Mediterranean) in the transition period 2017-2018, when the species that characterize the fishery, viz.
Iván Sola, Francesc Maynou
doaj   +1 more source

Influence of Trawl Geometry and Vertical Distribution of Fish on Sampling with Bottom Trawl

open access: yesJournal of Northwest Atlantic Fishery Science, 1986
Studies were initiated at the Institute of Marine Research, Bergen, in 1984 with the aim of improving the reliability of bottom trawl and acoustic survey results for cod and haddock in the Barents Sea. Spread of the wings and doors and height of the trawl were measured during fishing operations, and acoustic recordings of fish densities were obtained ...
A Engås, O R Godø
openaire   +1 more source

Complex Firms, Controversial Outcomes: Global Evidence on ESG Failures and Remedies

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT We examine whether business complexity increases firms' exposure to negative environmental, social, and governance (ESG) outcomes, specifically ESG controversies, using a global panel of firms from 37 countries over the period 2002–2021.
Abongeh A. Tunyi   +3 more
wiley   +1 more source

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