Results 1 to 10 of about 3,268,266 (217)
Growth Parameters and Mortality Rates Estimated for Seven Data-Deficient Fishes from the Azores Based on Length-Frequency Data [PDF]
Life, 2022 Given the scarcity of information suitable for stock assessments, the growth and mortality of seven exploited marine fishes in Azorean waters were estimated based on length-frequency data. The studied species were Trachurus picturatus, Sparisoma cretense,
Régis Santos +4 more
doaj +6 more sources
Data-Limited Population-Status Evaluation of Two Coastal Fishes in Southern Angola Using Recreational Catch Length-Frequency Data. [PDF]
PLoS ONE, 2016 Excessive truncation of a population's size structure is often identified as an important deleterious effect of exploitation, yet the effect on population persistence of size-structure truncation caused by exploitation is often not quantified due to data
Jennifer Beckensteiner +4 more
doaj +9 more sources
Fitting growth models to length frequency data [PDF]
ICES Journal of Marine Science, 2004 Abstract A novel two-stage procedure for fitting growth curves to length frequency data collected from commercial fisheries is described. The method is suitable for species in which cohorts are spawned over a limited time period, and samples of length frequency data are collected regularly (e.g.
Geoff M. Laslett +2 more
openaire +3 more sources
Catch Trend and Stock Assessment of Hilsa Tenualosa ilisha Using Digital Image Measured Length-Frequency Data [PDF]
Marine and Coastal Fisheries, 2018 Abstract The annual global average catch shares of the anadromous Hilsa Tenualosa ilisha of Bangladesh increased rapidly from 74.5% all through 1984–2013 to 86.7% during the 2010–2015 periods. With a few exceptions, an increasing trend of Hilsa production over the last three decades was found in Bangladesh.
Mohammad A. Rahman +4 more
openaire +2 more sources
Journal of Hydrology: Regional Studies, 2022 Study region: Yellow River Basin, China. Study focus: The rainfall-runoff modeling performance of Data-Driven Models (DDM) in the Yellow River Basin (YRB) at a large scale is unclear such that the DDM research in the YRB lacks essential reference which ...
Jin Jin +6 more
doaj +2 more sources
Observational study of missing SOFA score data frequency in RCTs relative to ICU length of stay [PDF]
Scientific ReportsThe Sequential Organ Failure Assessment, also known as SOFA score, was introduced to assess organ dysfunction of critical ill patients. However, understanding the impact of missing SOFA scores in randomized controlled trials and how this affect the ...
Denise Molinnus +4 more
doaj +2 more sources
TropFishR: an R package for fisheries analysis with length‐frequency data [PDF]
Methods in Ecology and Evolution, 2017 Summary The R package TropFishR is a new analysis toolbox compiling single‐species stock assessment methods specifically designed for data‐limited fisheries analysis using length‐frequency data. It includes methods for (i) estimating biological stock characteristics such as growth and mortality parameters, (ii) exploring technical aspects of the ...
Mildenberger, Tobias +2 more
openaire +3 more sources
A new approach for estimating stock status from length frequency data [PDF]
ICES Journal of Marine Science, 2018 AbstractThis study presents a new method (LBB) for the analysis of length frequency data from commercial catches. LBB works for species that grow throughout their lives, such as most commercially-important fish and invertebrates, and requires no input in addition to length frequency data.
Froese R +9 more
openaire +5 more sources
Estimation of Age Structure of Fish Populations from Length-Frequency Data [PDF]
, 1977 A probability model is presented to determine the age structure of a fish population from length-frequency data. It is shown that when the age-length key is available, maximum-likelihood estimates of the age structure can be obtained. When the key is not available, approximate estimates of the age structure can be obtained.
Kumar, K. D., Adams, S. M.
openaire +3 more sources
Scientia Marina, 2002 The hake (M. merluccius) is a target species of the Mediterranean trawl fleets. In this study, its growth was compared by two means: whole otolith readings and length frequency distribution analysis.
Mariano García Rodríguez +1 more
doaj +3 more sources