Results 121 to 130 of about 50,132 (157)
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Estimation of catch losses resulting from overexploitation in the global marine fisheries

Acta Oceanologica Sinica, 2017
Many fish stocks in the world are depleted as a result of overexploitation, which reduces stock productivity and results in loss of potential yields. In this study we analyzed the catch trends and approximate thresholds of sustainable fishing for fished stocks to estimate the potential loss of catch and revenue of global fisheries as a result of ...
Xinjun Chen, Ding Qi, Chen Xinjun
exaly   +2 more sources

Food security implications of global marine catch losses due to overfishing

Journal of Bioeconomics, 2010
Excess fishing capacity and the growth in global demand for fishery products have made overfishing ubiquitous in the world’s oceans. Here we describe the potential catch losses due to unsustainable fishing in all countries’ exclusive economic zones (EEZs) and on the high seas over 1950–2004.
Reg Watson, Rashid Sumaila
exaly   +3 more sources

Freeze-Thaw Effects on Phosphorus Loss in Runoff from Manured and Catch-Cropped Soils

Journal of Environmental Quality, 2005
ABSTRACTConcern over nonpoint source P losses from agricultural lands to surface waters in frigid climates has focused attention on the role of freezing and thawing on P loss from catch crops (cover crops). This study evaluated the effect of freezing and thawing on the fate of P in bare soils, soils mixed with dairy manure, and soils with an ...
Marianne Bechmann   +2 more
exaly   +3 more sources

A modelling approach for assessing short-term catch losses as a consequence of a mesh size increase

Fisheries Research, 2004
Abstract Short-term effects of an increase in mesh size of a square mesh window codend were modelled with a stochastic size-selective simulation model using the 1999 fisheries data from the southern Baltic Sea (SD 25). Vessel-type-dependent selectivity estimates and catch per unit of effort (CPUE) data from Baltic cod ( Gadus morhua ) demersal trawl ...
Petri Suuronen, Pekka Jounela
exaly   +2 more sources

Weight requirements for catch-up growth in girls with eating disorders and onset of weight loss before menarche

International Journal of Eating Disorders, 2005
The current study investigated catch-up in stature in girls with eating disorders and onset of weight loss and stunting of growth before menarche.Forty-six girls were followed with measurements of weight and stature for 2-5 years after presentation.At presentation, the girls were stunted by 0.48 +/- 0.57 standard deviation scores (SDS) for height ...
Ingemar Swenne
exaly   +3 more sources

Poor Catch‐up Growth in Late Adolescent Boys with Eating Disorders, Weight Loss and Stunting of Growth

European Eating Disorders Review, 2013
AbstractObjectiveThe study aims to investigate the catch‐up growth of boys presenting with an eating disorder (ED) and a stunting of growth.MethodWeight gain and growth of 46 boys with ED were followed up for 1–3 years.ResultsA total of 13 boys who had not started their pubertal growth spurt at presentation started catch‐up growth immediately following
exaly   +3 more sources

Legumes in catch crop mixtures: Effects on nitrogen retention and availability, and leaching losses

Journal of Environmental Management, 2019
Catch crop (CC) mixtures of non-legumes (nL) and legumes (L) have been promoted as a strategy to achieve two different goals: to decrease the risk of nitrate leaching and to enhance the nitrogen supply to the subsequent crop. To investigate if two-component mixtures of nL + L have advantages over pure nL stands experiments were carried out over a two ...
Iris Vogeler   +3 more
openaire   +3 more sources

Catching an Induction Motor After a Loss Power Supply of the Transistor Electricdrive

LETI Transactions on Electrical Engineering & Computer Science, 2023
The solution of the problem of connecting an asynchronous machine with a squirrel-cage rotor to a transistor converter after their disconnection in the absence of a rotor speed sensor is considered. This problem may arise in the drives of pumps, fans, in wind power plants and in other systems, if it is necessary to urgently breaking the mechanism or to
openaire   +1 more source

Influence of Age, Sex, Hearing Loss and Balance on Development of Catching by Deaf Children

Perceptual and Motor Skills, 1988
132 deaf boys and girls were evaluated on development for catching and static and dynamic balance proficiency. Additional information was obtained relative to age and hearing loss in decibels. Mature form in catching was related to chronological age and proficiency of balance.
S A, Butterfield, W F, Ersing
openaire   +2 more sources

Nitrate leaching from ploughed pasture and the effectiveness of winter catch crops in reducing leaching losses

New Zealand Journal of Agricultural Research, 1996
Abstract The effect of five catch crops (ryecorn, ryegrass, mustard, lupin, bean) on nitrogen (N) leaching following the autumn ploughing of a grass ley was compared with N leaching from bare fallow soil. The concentrations of nitrate N and ammonium N in the drainage water and the quantities of drainage water from the various ...
R. D. McLenaghen   +4 more
openaire   +1 more source

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