Results 31 to 40 of about 840 (285)

The Challenges of Managing Depredation and Bycatch of Toothed Whales in Pelagic Longline Fisheries: Two U.S. Case Studies

open access: yesFrontiers in Marine Science, 2021
Direct interactions with fisheries are broadly recognized as the leading conservation threat to small cetaceans. In open-ocean environments, one of the primary gear types implicated in these interactions is the pelagic longline.
Joseph E. Fader   +2 more
doaj   +1 more source

SEARCH BEHAVIOR IN THE PURSE SEINE TUNA FISHERY

open access: yesNatural Resource Modeling, 1993
A purse seine vessel cruises in search of schools of tuna during daylight hours, attempting to locate fish by observing surface water disturbance, sea bird activity, or floating objects. The purpose of this paper is to examine the two hypotheses advanced by Doulman: that the Japanese vessels have a greater tendency to fish as a fleet than the US ...
Campbell, H. F.   +2 more
openaire   +3 more sources

Size of Peruvian small purse seines.

open access: yesNIPPON SUISAN GAKKAISHI, 1989
The size of Peruvian small purse seines was examined applying the size of anchovy purse seine. Also, a comparison between Peruvian and Japanese purse seines was undertaken. The size adopted was the overall length (Loa; ft) and gross tonnage (GT; t) of the fishing boat, and float line length (Lf; fm), net height (He; fm) and net area (A; fm2) for the ...
Machii, Tadanobu, Nose, Yukio
openaire   +2 more sources

Development of a Gear-Based Fisheries Management Index Incorporating Operational Metrics and Ecosystem Impact Indicators in Korean Fisheries

open access: yesJournal of Marine Science and Engineering
Traditional single-species fisheries management has proven inadequate for capturing ecosystem interactions, leading to a shift toward ecosystem-based approaches.
Inyeong Kwon   +5 more
doaj   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

Quelques aspects de l'âge et de la croissance de l'anchois Engraulis encrasicolus (Pisces, Engraulidae) le long du littoral de la Côte d'Ivoire [PDF]

open access: yesTropicultura, 2015
Some age and growth aspects of Engraulis encrasicolus (Pisces, Engraulidae) along the coast of Ivory Coast. Age and growth of Engraulis encrasicolus (Linneaus, 1758) were studied in eastern coast of Ivory coast from September 2004 to September 2005 ...
Ouattara, S.   +3 more
doaj  

An analysis of historical landing data of some pelagic species caught by purse seines in the Aegean Sea

open access: yes, 2021
The fishing activity with purse seines in the Aegean Sea accounts for almost half of the pelagic fish excluding anchovy (Engraulis encrasicolus Linnaeus, 1758) in Turkey.
Tosunoglu, Zafer, Ceyhan, Tevfik
core   +1 more source

Cathodic Cage Plasma Deposition of Nanostructured Cu–Fe–Se Coatings on Poly(methyl Methacrylate)

open access: yesAdvanced Engineering Materials, EarlyView.
Nanostructured Cu–Fe–Se coatings are deposited on PMMA by a modified cathodic cage plasma process, enabling low‐temperature deposition on polymer substrates. A transition from discontinuous to compact morphology is observed with temperature, with optimal properties at 200°C, where improved CuFeSe2‐type bonding, lowest sheet resistance, and favorable ...
V. S. S. Sobrinho   +8 more
wiley   +1 more source

Reducing discards in a demersal purse-seine fishery [PDF]

open access: yesAquatic Living Resources, 2008
Fisheries bycatches and discards constitute a significant problem in many fisheries worldwide. Unlike the pelagic purse-seine, the demersal purse seine usually targets high commercial value demersal species such as sea breams (e.g., Diplodus spp., Pagellus spp., Sparus aurata) and the European sea bass (Dicentrarchus labrax), while discards consist ...
Gonçalves, J. M. S.   +5 more
openaire   +2 more sources

Microstructure, Thermal Transport, and Dry‐Sliding Tribology of Powder‐Metallurgy Al7075 Composites Reinforced With Sol–Gel‐Derived ZnO–rGO Hybrid Nanoparticles

open access: yesAdvanced Engineering Materials, EarlyView.
Sol–gel‐derived ZnO–rGO hybrid nanoparticles enable Al7075 powder‐metallurgy composites to achieve concurrent gains in hardness and thermal conductivity while markedly lowering friction and wear. The hybrid architecture couples ZnO‐based load support with rGO‐assisted lamellar sliding and heat spreading, revealing a promising route toward lightweight ...
Bunyamin Aksakal   +3 more
wiley   +1 more source

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