Results 51 to 60 of about 6,820 (214)

Does nature shape risk preferences? Evidence from Chile, Norway, and Tanzania

Economic Inquiry, Volume 63, Issue 2, Page 568-590, April 2025.
Abstract Does exposure to a more risky environment affect risk preferences? Going beyond single‐case study evidence, we report results from five surveys conducted in three countries and link this with administrative data to study whether a link between exposure and preferences is detectable and widespread. We find no evidence for endogenous preferences
Florian Diekert, Robbert‐Jan Schaap
wiley   +1 more source

A simple fish-based approach to assess the ecological quality of freshwater reservoirs in Central Europe

Knowledge and Management of Aquatic Ecosystems, 2017
The assessment of ecological quality in freshwater ecosystems is a key issue in many countries, but conditions for the development of assessment methodologies are often country-specific.
Blabolil Petr, Říha Milan, Ricard Daniel, Peterka Jiří, Prchalová Marie, Vašek Mojmír, Čech Martin, Frouzová Jaroslava, Jůza Tomáš, Muška Milan, Tušer Michal, Draštík Vladislav, Sajdlová Zuzana, Šmejkal Marek, Vejřík Lukáš, Matěna Josef, Boukal David S., Ritterbusch David, Kubečka Jan   +18 more
doaj   +1 more source

Efficiency of drift gillnets in nagan raya district, aceh, indonesia [PDF]

BIO Web of Conferences
The achievement of technical and economic efficiency is one indicator in assessing the fishing process's capability. The purpose of this study was to formulate production factors of drift gillnets at The Kuala Tadu and The Kuala Tuha fishing base and to ...
Rahmah Alvi, Mutia Aprilla Ratna, Okta Yufriada Syahrul, Agustina Imelda, Salmarika Salmarika, Fathanah Yusuf   +5 more
doaj   +1 more source

Defining risk variables causing gas embolism in loggerhead sea turtles (Caretta caretta) caught in trawls and gillnets

Scientific Reports, 2017
Incidental capture, or ‘bycatch’ in fishing gear is a major global threat to sea turtle populations. A recent study showed that underwater entrapment in fishing gear followed by rapid decompression may cause gas bubble formation within the blood stream ...
A. Fahlman, J. Crespo-Picazo, B. Sterba-Boatwright, B. Stacy, D. García-Párraga   +4 more
semanticscholar   +1 more source

The Use of Gillnets for Estimation of Fish Stocks [PDF]

Journal of Animal and Veterinary Advances, 2010
In this research it has been targeted to estimate fishable stocks of Karakaya Dam Lake (in Turkey) by using fishing with gillnets method that had been suggested as an alternative method for estimating fish stocks. Productivity per hectare in the dam lake and the amount of fishable stocks has been calculated to be 13.67 kg ha-1 and 312.005 kg year-1 ...
Yüksel, Fahrettin, Celayir, Yasin
openaire   +3 more sources

Discard Survival of Thornback Ray (Raja clavata), Undulate Ray (Raja undulata) and Small‐Eyed Ray (Raja microocellata) in Northeast Atlantic Inshore Fisheries

Fisheries Management and Ecology, EarlyView.
ABSTRACT Quantifying discard survival of species is crucial for effective fishery management. Electronic tags and visual health assessments were used to estimate postrelease survival of commercially caught thornback ray (Raja clavata), undulate ray (Raja undulata) and small‐eyed ray (Raja microocellata) from Northeast Atlantic inshore fisheries ...
Serena R. Wright, Ana Ribeiro Santos, Ruth Hicks, Peter Randall, Joana Silva, Victoria Bendall, Thomas Catchpole   +6 more
wiley   +1 more source

Does the monofilament nylon gillnets catch double more fishes than conventional multifilament gillnets in Danube delta: myth or reality

Scientific Annals of the Danube Delta Institute, 2017
The monofilament gillnets are prohibited by law for fishing in Romania. There is an untested myth among Romanian fishery stakeholders and folks that monofilament nylon gillnets have double times fishing catch than conventional multifilament gillnets ...
NAVODARU Ion, NASTASE Aurel
doaj  

On Selectivity Curve of Gillnet

NIPPON SUISAN GAKKAISHI, 1971
The preceding paper showed that the mesh selectivity, i.e. relative efficiency, of gillnet was expressed as a function of the ratio of mesh size m to body length l in certain ranges of mesh size and length, and that the application of the above method to McCOMBIE and FRY's, and ISHIDA's data gave different master curves according to the groups of ...
openaire   +2 more sources

Gillnet fishing characteristics in Franciscana Management Areas

, 2022
The main threat to franciscanas (Pontoporia blainvillei) is the incidental catches in gillnets. Given the variety of this fleet and the fishing communities in Brazil, the aim of this chapter is to characterize the social-economic, socioenvironment, and ethno-environment aspects of the gillnet activity in the Franciscana Management Areas (FMA) II and ...
Gonçalves, Isabel, Carvalho, Camila Carvalho de, Dias, Liane Amaral, Bertozzi, Carolina Pacheco, Domit, Camila, Tullio, Juliana Di   +5 more
openaire   +1 more source

Factors Influencing the Stocking of Juvenile Pikeperch (Sander lucioperca)

Fisheries Management and Ecology, EarlyView.
ABSTRACT Predator species of fish play crucial roles in ecosystem balance through top‐down control, a mechanism frequently exploited in biomanipulation to stock predator species. Juvenile pikeperch (Sander lucioperca) were stocked (n = 52,887) in spring 2023 and 2024 and autumn 2023 to compare stocking efficiency between Recirculation Aquaculture ...
Michaela Holubová, Petr Blabolil, Martin Čech, Vladislav Draštík, Jaroslava Frouzová, Luboš Kočvara, Jan Kubečka, Václav Kučera, Oleksandr Malinovskyi, Milan Muška, Marie Prchalová, Rubén Rabaneda‐Bueno, Pavel Rychtecký, Milan Říha, Zuzana Sajdlová, Michal Tušer, Mojmír Vašek, Tomáš Jůza   +17 more
wiley   +1 more source