BioeconomicParams-class: A class for bioeconomic parameters.

BioeconomicParams-classR Documentation

A class for bioeconomic parameters.

Description

A class for bioeconomic parameters.

Slots

g

The magnitude of commercial trip change per year.

p

The magnitude of recreational trip change per year.

b

Recreational catch per effort threshold.

qC

Commercial catchability per effort.

qR

Recreational catchability per effort.

muA

The natural mortality of the adult stock.

muJ

The natural mortality of the juvenile stock.

chiR

Effort per recreational trip.

chiC

Days per commercial trip.

theta

Max number of commercial trips per year.

gamma

Max number of recreational trips per year.

delta

Proportion of recreational catch released.

varphi

Proportion of released recreational catch that survives.

eta

Commercial discard rate.

Gamma

Proportion of commercial discards that survive.

WR

Average weight of recreationally landed fish (tonnes).

WC

Average weight of commercial landed fish (tonnes).

nu

Commercial fish price per tonnes.

baromega

Variable cost per commercial day at sea.

Lambda

Proportion fixed cost attributable to sea bass.

phi

Fixed cost per fleet per year.

sigma

GVA multiplier for commercial Revenue.

lambda

Average per trip expenditure of recreational anglers.

zeta

GVA multiplier for recreational trip expenditure.

initialSJ

The starting value of the size of the juvenile stock (in numbers).

initialSA

The starting value of the size of the adult stock (in numbers).

initialTC

The starting value for the number of commercial trips.

initialTR

The starting value for the number of recreational trips.


CefasRepRes/FishRAM documentation built on Feb. 1, 2023, 1:15 a.m.