fish_biomass: Calculate biomass
In turfeffect/MPAtools: Tools to simulate and analyze no-take Marine Reserves
Description
Usage
Arguments
Value
Description
Calulates biomass for a selected species or the entire dataset, by year, site, and transect, for a given location.
Usage
1
fish_biomass(data, location, species = NULL)
Arguments
data
A dataframe that contains at least columns of Ano, Zona (e.g. "Zona de pesca" or "Zona de no pesca"), Sitio, Transecto, GeneroEspecie. Columns for a and b parameters are optional, though heavily suggested to avoid errors in calculations (this package might not have all parameters for all species).
location
A quoted string that indicates the location.
species
A quoted string that indicates a species for which density should be calulated.
a, b
An optional dataframe that contains the a and b allometric parameters for each species. Dataframe must have three columns: GeneroEspecie, a, b
Value
size A dataframe with columns for Ano, Zona, Sitio, Transecto, GeneroEspecie, and fish biomass (B; in grams).
turfeffect/MPAtools documentation built on June 1, 2019, 2:55 a.m.
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Description Usage Arguments Value
Description
Calulates biomass for a selected species or the entire dataset, by year, site, and transect, for a given location.
Usage
1 | fish_biomass(data, location, species = NULL)
|
Arguments
data |
A dataframe that contains at least columns of Ano, Zona (e.g. "Zona de pesca" or "Zona de no pesca"), Sitio, Transecto, GeneroEspecie. Columns for a and b parameters are optional, though heavily suggested to avoid errors in calculations (this package might not have all parameters for all species). |
location |
A quoted string that indicates the location. |
species |
A quoted string that indicates a species for which density should be calulated. |
a, b |
An optional dataframe that contains the a and b allometric parameters for each species. Dataframe must have three columns: GeneroEspecie, a, b |
Value
size A dataframe with columns for Ano, Zona, Sitio, Transecto, GeneroEspecie, and fish biomass (B; in grams).
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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