FW Exam pt.2

Grey Zone

unprotected species, non-natives, pests/insects, unprotected birds/mammals, deer mice, voles, moles

Black tailed prairie dogs

98% decline, need small game license to control on public land

Non game T&E species

black-footed ferret, whooping cranes, specialists

non game watchable wildlife

owl species, meadowlarks, not harvesting

Neotropical migrants

birds that fly from pole to pole

Wars for fish

Cod wars 1958-1974, Herring wars in the 1500’s

Types of sampling

passive, active, non-capturepa

active sampling

actively searching/collecting

passive sampling

set it and wait

non-capture sampling

visual/remote observation

Gill nets sampling

passive, mesh nets, different sizes for different sized fish

long lines

passive, single line with baited drop lines with hooks

pots traps

benthic species

beach seining

active, rectangular mesh net into shallow water

trawling

active, mid water or bottom, commerical

electrofishing

active, temporarily stun fish

Hook and line

active

Measurements and data

length & weight, movement, age, sex, health, diet

Aging fish

scales (rings like trees), spines, otoliths (ears)

Marking and tagging

thermal (before hatching, $$)

Dyes, stains, antibiotics, trace elements

Batch marking

coded wire tags - $I

individual marking

visual implant elastomer, passive integrated transponder tag - $$