and_vertebrates: Cutthroat trout and salamander length and weights in Mack...

In lterdatasampler: Educational Dataset Examples from the Long Term Ecological Research Program

Cutthroat trout and salamander length and weights in Mack Creek, Andrews Forest LTER

Description

Includes count and size data for cutthroat trout and salamanders in clear cut or old growth sections of Mack Creek, Andrews Forest LTER.

Usage

and_vertebrates

Format

A tibble with 32,209 rows and 16 variables:

year

a number indicating the observation year

sitecode

a character denoting the coded name of sample area

section

a character denoting the section in Mack Creek (CC = clear cut forest, OG = upstream old growth coniferous forest)

reach

a character denoting the reach sampled from each section; L = lower reach (0 - 50 meters), M = middle reach (50 - 100 meters), U = upper reach (100 - 150 meters))

pass

a number denoting the electroshocking pass number, either 1 or 2

unitnum

a number denoting the channel unit number

unittype

a character denoting the channel unit classification type (C = cascade, I = riffle, IP = isolated pool (not connected to channel), P = pool, R = rapid, S = step (small falls), SC = side channel, NA = not sampled by unit)

vert_index

a number denoting the unique index for each vertebrate

pitnumber

a number denoting the unique tag number embedded into vertebrate (tagging started in 2007)

species

a character denoting species measured

length_1_mm

a number denoting vertebrate length in millimeters; total or snout-fork length for trout, and snout-vent length for salamanders

length_2_mm

a number denoting snout-tail length in millimeters (for Coastal giant salamander only)

weight_g

a number denoting vertebrate mass in grams

clip

a character denoting the fin clip type for cutthroat trout, ended in 2006 (LV = left ventral fin; LVRV = left and right ventral fins; RV = right ventral fin; NONE = no ventral fin clip)

sampledate

a date denoting the date of observation

notes

a character denoting additional comments

Source

Gregory, S.V. and I. Arismendi. 2020. Aquatic Vertebrate Population Study in Mack Creek, Andrews Experimental Forest, 1987 to present ver 14. Environmental Data Initiative. \Sexpr[results=rd]{tools:::Rd_expr_doi("10.6073/pasta/7c78d662e847cdbe33584add8f809165")}

lterdatasampler documentation built on Aug. 14, 2023, 9:08 a.m.