Results 91 to 100 of about 36,316 (310)
Exploitation patterns of Octopus vulgaris in two Mediterranean areas
Scientia Marina, 2002 Exploitation patterns of the common octopus, Octopus vulgaris, in two Mediterranean areas were studied in three ports, two in the Thracian Sea (Greece, Eastern Mediterranean) and one in the Catalan Sea (Spain, Western Mediterranean).
Alexis Tsangridis +2 more
doaj +1 more source
Reducing by-catch through fishing gear modification [PDF]
, 2009 There have been considerable efforts in recent years to modify fishing gears and practices to target particular sizes and species of fish (fin and shell) and other marine organisms more efficiently.
Ogunfowora, O.O. +3 more
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Quantifying relative fishing impact on fish populations based on spatio-temporal overlap of fishing effort and stock density [PDF]
, 2013 Evaluations of the effects of management measures on fish populations are usually based on the analyses of population dynamics and estimates of fishing mortality from stock assessments.
Eero, Margit, Vinther, Morten
core +2 more sources
Limnology and Oceanography: Methods, EarlyView.Abstract Benthic incubation chambers enclose a known volume of water overlying a known area to measure water chemistry changes and are typically used to quantify the metabolic activity of benthic organisms or communities. Here we present an economical benthic incubation chamber for shallow, low‐flow environments, built using off‐the‐shelf components ...
Luke D. Groff +2 more
wiley +1 more source
The effect of long term exploitation by the gill net fishery on the multispecies fish stocks in Kainji Lake, Nigeria, 1969-1997 [PDF]
, 1997 The findings are presented of an assessment made of the gillnet fishery in Kainji Lake, Nigeria from 1969 to the present, on the basis of data sets from commercial and experimental gillnet fishing, with the purpose to detect trends in some key fishery ...
Du-Feu, T.A., Seisay, M.D.B.
core
Mapping EU fishing activities using ship tracking data
, 2015 Information and understanding of fishing activities at sea are fundamental components of marine knowledge and maritime situational awareness. Such information is important to fisheries science, public authorities and policy makers.
Alessandrini, Alfredo +5 more
core +1 more source
Limnology and Oceanography: Methods, EarlyView.Abstract Clear liquid optical chamber baited remote underwater video systems (CLOC‐BRUV) are an effective option for assessing fish assemblages in turbid water, but current designs are limited by their large size and high operational costs. We developed a lightweight CLOC‐BRUV unit and evaluated its performance through proof‐of‐concept trials and field
Hsin‐Wei Huang +3 more
wiley +1 more source
Seasonal variability in global industrial fishing effort.
PLoS ONE, 2019 Human beings are the dominant top predator in the marine ecosystem. Throughout most of the global ocean this predation is carried out by industrial fishing vessels, that can now be observed in unprecedented detail via satellite monitoring of Automatic ...
Jérôme Guiet +3 more
doaj +1 more source
Fishing gear survey of Kainji Lake, northern Nigeria, 1996 [PDF]
, 1997 A survey was carried out in September 1996 alongside the annual frame survey of Kainji Lake, Nigeria. As in the previous surveys, there were 6 main fishing gear types in use on the lake, which included gill nets, drift nets, beach seines, cast nets ...
Abayomi, O.S. +2 more
core
Limnology and Oceanography: Methods, EarlyView.Abstract The difficulty of sampling zooplankton communities in situ has driven advancements in autonomous, remote sensing technology. The goal of this paper was to perform a gear comparison study testing the performance of one such piece of technology—a glider‐mounted four‐frequency echosounder—against traditional shipboard methods of measuring ...
Delphine Mossman +3 more
wiley +1 more source