Weather conditions play an important role in your fishing success. While it is known that a dramatic change in the weather,
such as a big drop in temperature, when a cold front arrives, can and will greatly affect how and when fish feed. More subtle
changes can also have the same affect, and are harder for us to detect. For example, on a sunny day if a cloud passes in
from t of the sun the lake turns dark, which in turn often triggers a feeding period for the fish. Also it should be noted
that if you are fishing in the fog and the sun breaks out, you may experience a hot bite. Phases of the moon also can come
into play . Typically three days before and three days after a new or full moon tends to be a great fishing period. Some
anglers thing however that a full moon will put fish down. Rain also affects fishing , many times the runoff from feeder
creeks and streams washes food into small bays and inlets where fish will congregate
As long as there is adequate oxygen, water temperature is the most important factor in determining the fishes location.
Different species have different preferred ranges of temperatures where their bodies function most effectively. During the
summer the sun warms the surface of the lakes, ponds, rivers and oceans. If the body of water is small, the water is mixed
by the wind so temperature stays fairly constant throughout the body. With larger bodies of water the water stratifies into
three different layers . The top surface layer is called the epilimnion. The deep water that remains cool is called the
hypolimnion. The area in-between these two layers that is characterized by a rapid drop in temperature is called the thermocline.
Anglers will sometimes try to locate the thermocline and troll just above or below it.
The current of a stream or river has an effect on that fish live there. The reason for this is that current largely determines
what plants and insects are present and the amount of energy that is required for a fish to remain in one place. Immature
or juvenile insects including the larva of caddisflies, Dobsonflies, alderflies, and the nymphs of mayflies and stoneflies
need running water. These insects may live under or live on the surface of rocks. Trout in turn prefer cold moving water
where these insects also live. The current is typically slower near the sides or bottom of a stream, and stronger at the
surface, mid-depth or center. The drag exerted on the water by the shore or bottom is what causes this. Current is slower
behind obstacle like rocks or depressions. Fish will often position themselves in these areas of slower current. They will
face into the current and wait for their meal to come to them, so remember this during your presentation.
Water clarity can be affected by many things, including the presence of silt, plankton, algae and other nutrients. Some
waters are naturally turbid because of the lands around the lake that supply nutrients which stimulate the growth of algae.
Other waters are turbid because of pollution caused by man. Turbidity can also be an indicator where fish are present.
Waters that are constantly turbid from silt, will have less trout and walleye who rely on vision to capture their food and
will have more bullhead or other fish that feed by touch or odor. Turbidity that is caused by excess algae may indicate lower
oxygen levels. In water of this type the only fish that can survive here are carp and types of catfish.
I hope the information provided here is of some use to you. I will continue to update the info and keep you posted to
changes so please check back here for a refresher or is you have some unanswered questions do hesitate to ask.
LOCATION, LOCATION, LOCATION
FISHING PHYSIOLOGY 101