Roach: Data frame of Roach in Lough Neagh

Description Usage Format

Description

The roach is a cyprinid freshwater-brackish benthopelagic fish, common to most of Europe and western Asia [http://www.fishbase.org/summary/Rutilus-rutilus.html] (http://www.fishbase.org/summary/Rutilus-rutilus.html). Larvae and juveniles are typically pelagic, consuming zooplankton, with a switch to more benthic diets as they grow, including plant material and detritus. The dataset included here examines if a consumer shows an ontogenetic shift in their trophic position, studying how TP varies across different size classes.

Usage

1
data("Roach")

Format

A data frame with 6 variables:

Taxon

factor, with 5 levels, the common name of each baseline species and Roach

FG

factor, with 3 levels, each representing three functional groups: Benthic_BL (bith, theodoxus and valvata), Pelagic_BL (zebra mussel) and Roach (consumer)

Fork.length

numeric, fork length of roach in mm

Size.class

numeric, each representing deciles of fork length of roach

d13C

numeric, stable isotope values of d13C

d15N

numeric, stable isotope values of d15N


tRophicPosition documentation built on May 2, 2019, 4:15 a.m.