TY  - JOUR
T1  - Sensitivity of the F35% Target Fishing Rate to Variation in the Maturity Schedule
AU - , M. Al-Jufaili Saud 
JO  - Journal of Fisheries International
VL  - 2
IS  - 4
SP  - 284
EP  - 291
PY  - 2007
DA  - 2001/08/19
SN  - 1817-3381
DO  - jfish.2007.284.291
UR  - https://makhillpublications.co/view-article.php?doi=jfish.2007.284.291
KW  - F35%
KW  - English sole
KW  -Monte Carlo
KW  -maturity schedule
KW  -fishing rate
AB  - Monte Carlo simulation experiments were conducted to explore how variability in the maturity schedule for English sole <I>Pleuronectes vetulus</I> is transformed into variability in estimates of F35%. Random values were generated for age at 50% maturity and the maturity slope coefficient for each of 10935 combinations of 8 factors. From these simulated data F<SUB>35%</SUB> values were derived and summarized for each experimental treatment as an average  F<SUB>35%</SUB> value and coefficient of variation. The summary statistics were then transformed and analyzed using forward stepwise linear regression to determine the relative importance of different factors plus a quadratic term were required to account for 90% of the variability in the data, whereas in the model for coefficient of variation in F<SUB>35%</SUB> all eight factors, plus interaction term and a quadratic term, were required to account for 90% of the variability in the data. In both models the age at 50% maturity and the age at 50% selection were the two most important explanatory variables.
ER  -