off-colorRefers to the color and or clarity of the water. The normal off-color conditions include brown or mud-stained such as from runoff, green from algae or…
OligotrophicLake classification used to describe young bodies of water characterized by deep, clear, cold, weedless water that can support fish, such as trout.
open-faced reelA typical or standard spinning reel in which the line comes off the fixed spool in loops and there is no nose cone.
organic baitsMinnows, insects, worms, fish eggs, cut bait, cheese or similar substances.
otolithThe ear bone of a fish. The age of a fish can be determined by counting the layers in the otolith, much like the rings of a tree.
outside bendThe outside line of a creek channel or grass bed. For underwater structure, it can also refer to the outside line of a submerged wash or arroyo.
over-fishingFishing pressure beyond which a sustainable population of fish or stocking effort can be maintained.
OvercastTo cast a lure, fly or bait beyond the aimed-for target.
Overpopulated (overcrowded)A term that describes a fish population where too many fish are present for the amount of available food.
oxbowA U-shaped bend in a river or stream. If isolated, they can be referred to as an oxbow lake.