Flashcards in Lab 3 Deck (10)
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1
When is beach seining used?
To catch small benthic fish in large numbers
2
When are backpack electroshockers used?
For streams and shallow rivers
3
When is trawling used?
Collection of more pelagic fish
4
Beach seining uses a small seine _-_ feet long. Beach seines are sometimes called ______ seines.
10-30
haul
5
What are the four parts of a beach seine?
Float line
Webbing
Lead line
Poles
6
Minnow seines have a ___-inch mesh. A __ foot depth is sufficient for minnow seines.
1/4
4
7
electrofishing is biased towards ______ fish.
Larger
8
What are the three main pieces of gear used during electrofishing?
Power unit
Transformer
Electrodes
9
Give three reasons to use electrofishing.
Sampling surveys, tagging, eliminating species.
10
