Results 21 to 30 of about 6,536,704 (287)

Beverton and Holt’s yield per recruit model [PDF]

open access: yes, 2017
Yield per Recruit (Y/R) is the expected life time yield per fish recruited into the stock at a specified age. The Beverton and Holt’s Yield per Recruit model (1957), is a predictive model that can be used by fishery managers to understand the ...
Ganga, U
core   +1 more source

The effect of including length structure in yield-per-recruit estimates for northeast Arctic cod [PDF]

open access: yesICES Journal of Marine Science, 2007
Abstract Kvamme, C., and Bogstad, B. 2007. The effect of including length structure in yield-per-recruit estimates for northeast Arctic cod. – ICES Journal of Marine Science, 64: 357–368. For northeast Arctic cod (Gadus morhua), traditional age-based estimates of yield per recruit (YPR) are compared with alternative, though comparable ...
Cecilie Kvamme, Bjarte Bogstad
openaire   +1 more source

Capture production and stock assessment of Solea aegyptiaca Chabanaud, 1927 (Soleidae: Pleuronectiformes) in Bardawil Lagoon, Egypt

open access: yesEgyptian Journal of Aquatic Research, 2015
Capture production from Bardawil Lagoon was described and analyzed. Fish samples of Solea aegyptiaca were collected for growth study. Otoliths were extracted from each specimen and used for age determination.
Mohamed H. Gabr
doaj   +1 more source

Fisheries resources management of crucian carp based on assessment of fish stock and potential yield in the mid-upper system of Seomjin River

open access: yesJournal of Ecology and Environment, 2014
This study was undertaken to suggest an effective fisheries resources management system by using stock assessment and potential yield analyses of crucian carp population in the mid-upper system of the Seomjin River.
Hui Seong Ryu   +3 more
doaj   +1 more source

Population Dynamics of Two Cichlids, Oreochromis aureus and Tilapia zilIi, from Wadi EI-Raiyan Lakes, Egypt

open access: yesJournal of Agricultural and Marine Sciences, 2004
Age, growth, mortality, relative yield-per-recruit and relative biomass-per-recruit of Oreochromis aureus and Tilapia zilli collected from Wadi EI-Raiyan lakes during the period from August 2000 until July 2001 have been estimated.
S.F. Mehanna
doaj   +1 more source

Fish stock assessment of piraputanga Brycon microlepis in the Cuiabá River basin, Pantanal of Mato Grosso, Brazil

open access: yesBrazilian Journal of Biology
Fork length measurements of individuals of Brycon microlepis landed and commercialized at the Porto Market in Cuiabá, MT, from May-October 1996 to May-October 1997 were used to estimate growth and mortality parameters for this species.
L. A. de F. MATEUS, G. M.B. ESTUPIÑÁN
doaj   +1 more source

Analyses of the composite yield per recruit model CYPR14 for inferring plausible fishing mortality targets of fish in the tropics

open access: yesAquatic Living Resources, 2022
Stocks' yield and size per recruit are widely used to provide fisheries management guidance. This study provides details for analyzing the composite (i.e. age-aggregated or stage-structured) yield per recruit (CYPR) model CYPR14, and proposes CYPR14 as a
Munyandorero Joseph
doaj   +1 more source

Chapter 7 – Size and reproduction: yield per recruit models

open access: yesSeptentrio Educational, 2015
<p>QUESTIONS ASKED</p><ul><li>What are the bases of the traditional regulations of effort and gear in fisheries?</li><li>What are the trade-offs between fishing early or late on the reproductive potential of the stocks?</li><li>How certain is the advice, and what are the risks?</li></ul><p ...
openaire   +3 more sources

Mortality rates and yield per recruit of catfish Tachysurus tenuispinis (Day) [PDF]

open access: yes, 1981
The mortality rates and yield per recruit of the catfish, Tachysurus tenuispinis are estimated from mean sizes and age composition. The total instantaneous mortality rate ramges between OJ80 and 1.10. The natural mortality (M) was 0.5.1. The yield per
Dan, S S
core   +1 more source

Yield per Recruit and Spawning per Recruit of Brownbanded Bamboo Shark, Chiloscyllium punctatum in Southeast Asia [PDF]

open access: yes, 2021
The brownbanded bamboo shark (Chiloscyllium punctatum) is a benthic shark species distributed in Southeast Asia. The species has been listed as “Near Threatened” by the IUCN, but only based on indirect information.
Pattarapongpan, Supapong   +3 more
core  

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