Description Slots Creating Object MPA slot Author(s) Examples

The component of the operating model that controls fishing dynamics

`Name`

Name of the Fleet object. Single value. Character string.

`nyears`

The number of years for the historical 'spool-up' simulation. Single value. Positive integer

`Spat_targ`

Distribution of fishing in relation to spatial biomass: fishing distribution is proportional to B^Spat_targ. Uniform distribution lower and upper bounds. Real numbers

`EffYears`

Years representing join-points (vertices) of time-varying effort. Vector. Non-negative real numbers

`EffLower`

Lower bound on relative effort corresponding to EffYears. Vector. Non-negative real numbers

`EffUpper`

Upper bound on relative effort corresponding to EffYears. Vector. Non-negative real numbers

`Esd`

Additional inter-annual variability in fishing mortality rate. Uniform distribution lower and upper bounds. Non-negative real numbers

`qinc`

Average percentage change in fishing efficiency (applicable only to forward projection and input controls). Uniform distribution lower and upper bounds. Non-negative real numbers

`qcv`

Inter-annual variability in fishing efficiency (applicable only to forward projection and input controls). Uniform distribution lower and upper bounds. Non-negative real numbers

`L5`

Shortest length corresponding to 5 percent vulnerability. Uniform distribution lower and upper bounds. Positive real numbers

`LFS`

Shortest length that is fully vulnerable to fishing. Uniform distribution lower and upper bounds. Positive real numbers

`Vmaxlen`

The vulnerability of fish at [email protected] Uniform distribution lower and upper bounds. Fraction

`isRel`

Selectivity parameters in units of size-of-maturity (or absolute eg cm). Single value. Boolean.

`LR5`

Shortest length corresponding ot 5 percent retention. Uniform distribution lower and upper bounds. Non-negative real numbers

`LFR`

Shortest length that is fully retained. Uniform distribution lower and upper bounds. Non-negative real numbers

`Rmaxlen`

The retention of fish at [email protected] Uniform distribution lower and upper bounds. Non-negative real numbers

`DR`

Discard rate - the fraction of caught fish that are discarded. Uniform distribution lower and upper bounds. Fraction

`SelYears`

(Optional) Years representing join-points (vertices) at which historical selectivity pattern changes. Vector. Positive real numbers

`AbsSelYears`

(Optional) Calendar years corresponding with SelYears (eg 1951, rather than 1), used for plotting only. Vector (of same length as SelYears). Positive real numbers

`L5Lower`

(Optional) Lower bound of L5 (use

`ChooseSelect`

function to set these). Vector. Non-negative real numbers`L5Upper`

(Optional) Upper bound of L5 (use

`ChooseSelect`

function to set these). Vector. Non-negative real numbers`LFSLower`

(Optional) Lower bound of LFS (use

`ChooseSelect`

function to set these). Vector. Non-negative real numbers`LFSUpper`

(Optional) Upper bound of LFS (use

`ChooseSelect`

function to set these). Vector. Non-negative real numbers`VmaxLower`

(Optional) Lower bound of Vmaxlen (use

`ChooseSelect`

function to set these). Vector. Fraction`VmaxUpper`

(Optional) Upper bound of Vmaxlen (use

`ChooseSelect`

function to set these). Vector. Fraction`CurrentYr`

The current calendar year (final year) of the historical simulations (eg 2011). Single value. Positive integer.

`MPA`

(Optional) Matrix specifying spatial closures for historical years.

Objects can be created by calls of the form `new('Fleet')`

Each row should contain year index (e.g 10 for 10th historical year) followed by fraction of area closed to fishing for each area. i.e. each row represents a change and the number of columns is nareas + 1. The spatial closures are assumed to remain in place for the future projections unless changed by a MP. Default (if left blank) is all areas are open to fishing in historical period.

T. Carruthers and A. Hordyk

1 | ```
showClass('Fleet')
``` |

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