Results 21 to 30 of about 388,975 (339)

Studying the contribution of different fishing gears to the Sardinella small-scale fishery in Senegalese waters

open access: yesAquatic Living Resources, 2017
This study investigated variations of landings of two key species, Sardinella aurita and Sardinella maderensis, in Senegalese waters over a ten-year period (2004–2013). Using generalized additive models, it was found that fishing gear played a major role
Diankha Ousmane   +7 more
doaj   +1 more source

Jatuarana fishing dynamics Brycon amazonicus (Spix & Agassiz, 1829) of the upper and middle Madeira River Basin

open access: yesActa Scientiarum: Biological Sciences, 2018
  The jatuarana (Brycon amazonicus), is an important species for the Madeira River commercial fisheries. The paper aims to characterize the jatuarana fishing dynamics in the middle Madeira River and test whether there are differences dowstreams and ...
Daiana Mendes Ayala   +3 more
doaj   +1 more source

Economical aspects of fishery management on ICNAF waters [PDF]

open access: yesActa Ichthyologica et Piscatoria, 1974
The present study comprises an analysis of the interdependence of the fishing effort and effects of the Polish fishery on the ICNAF waters within the years 1963-1969.
A. Niegolewski   +4 more
doaj   +3 more sources

Behaviour Impact Analysis of Tuna Purse Seiners in the Western and Central Pacific Based on the BRT and GAM Models

open access: yesFrontiers in Marine Science, 2022
Understanding the spatial pattern of human fishing activity is very important for fisheries resource monitoring and spatial management. To understand the spatial distribution of tuna purse seiner operations in the western and central Pacific Ocean and ...
Shenglong Yang   +8 more
doaj   +1 more source

Fish grabbing: Weak governance and productive waters are targets for distant water fishing.

open access: yesPLoS ONE, 2022
Distant water fishing occurs worldwide as foreign fleets fish in the exclusive economic zones (EEZs) of other states. We test the hypothesis that host state governance performance is an explanatory factor in observed distant water fishing effort using ...
Moritz Stäbler   +3 more
doaj   +2 more sources

Changes of the eel fishery patterns in the Vistula Lagoon, Poland [PDF]

open access: yesActa Ichthyologica et Piscatoria, 2008
Background. The decline in the eel population is reflected in the decreased incomes of fishers. This has led to changes in the structure and size of the fishing effort. The fyke nets used in eel catches are multi-species gear.
I. Psuty, B. Draganik
doaj   +3 more sources

Feedback control and its impact on generalist predator–prey system with prey harvesting

open access: yesNonlinear Analysis, 2019
This article examines the effectiveness of feedback control as a management policy on a generalist predator–prey system with prey harvesting. We discuss the result of implementing feedback control with respect to prey and predator separately.
Debabrata Das, Tapan Kumar Kar
doaj   +1 more source

Multiyear tagging studies incorporating fishing effort data [PDF]

open access: yesCanadian Journal of Fisheries and Aquatic Sciences, 1998
The Brownie models for multiyear tagging studies can be used to estimate age- and year-specific annual survival rates and tag recovery rates. The latter are composites of the exploitation rates and rates of tag reporting, tag shedding, and tag-induced mortality.
John M Hoenig   +3 more
openaire   +1 more source

Estimating fishing effort in small-scale fisheries using GPS tracking data and random forests

open access: yesEcological Indicators, 2021
During the last decade spatial patterns of industrial fisheries have been increasingly characterized using tracking technologies and machine learning analytical algorithms.
Faustinato Behivoke   +5 more
doaj   +1 more source

Global fishing capacity and fishing effort from 1950 to 2012

open access: yesFish and Fisheries, 2016
AbstractGlobal marine wild‐capture landings have remained relatively stable for >20 years; however, there is a lack of credible fishing capacity and effort information required to assess the sustainability and efficiency of the global fleet. As such, we estimated global fishing capacity and effort from 1950 to 2012 using a relatively comprehensive ...
Justin D Bell, Reg A Watson, Yimin Ye
openaire   +2 more sources

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