A measured 2.5 m colored wire or rod can be used to help estimate the 5 m belt transect width, and 20 or 30 cm sticks (hand-held or floating tethered to a small weight) can be used to estimate fish length.
(A measured 2.5 m colored wire or rod; can be used; to help estimate the 5 m belt transect width)
A measured 2.5 m colored wire or rod
can be used
to help estimate the 5 m belt transect width