X_length

A dataframe of example length-based fishery independent survey data for two
areas (AREA1 and AREA2) from 2014 - 2019.

datasets

Provides functions to calculate indicators for four marine ecosystem attributes (Biodiversity, Ecosystem Structure and Functioning, Ecosystem Stability and Resistance to Perturbations, Resource Potential) and one marine ecosystem pressure (Fishing Pressure) from fishery independent trawl survey data and commercial landings data. All indicators were selected and evaluated using the <e2><80><9c>Indicator Selection Guidance Framework<e2><80><9d> developed by Bundy, Gomez, and Cook (2017, ISBN: 978-0-660-23573-8).

Danielle Dempsey

marindicators

Marine Ecosystem and Fishing Pressure Indicators

Adam Cook

Catalina Gomez

Alida Bundy

X_length function

This example data is a dataframe with 14378 rows and 6 variables:<dl class="dl-horizontal">
<dt>YEAR</dt><dd>Year the observation was recorded</dd> <dt>ID</dt><dd>Area
 where the observation was recorded</dd> <dt>SPECIES</dt><dd>Numeric code indicating
 the species sampled</dd> <dt>LENGTH</dt><dd>Length class of sample species, in cm</dd>
 <dt>ABUNDANCE</dt><dd>Abundance of the species sampled, stratified and corrected
 for catchability</dd> <dt>BIOMASS</dt><dd>Biomass of the sampled species, stratified
 and corrected for catchability</dd> </dl>

Format

Example length-based fishery independent survey data — X_length

This example data is a dataframe with 14378 rows and 6 variables:<dl class='dl-horizontal'>
<dt>YEAR</dt><dd>Year the observation was recorded</dd> <dt>ID</dt><dd>Area
 where the observation was recorded</dd> <dt>SPECIES</dt><dd>Numeric code indicating
 the species sampled</dd> <dt>LENGTH</dt><dd>Length class of sample species, in cm</dd>
 <dt>ABUNDANCE</dt><dd>Abundance of the species sampled, stratified and corrected
 for catchability</dd> <dt>BIOMASS</dt><dd>Biomass of the sampled species, stratified
 and corrected for catchability</dd> </dl>

X_length: Example length-based fishery independent survey data

Description

Usage

Arguments

Format

Details