Trotline

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Trotline for catfish
 
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Trotline for catfish

A trotline is a heavy fishing line with baited hooks attached at intervals by means of branch lines called snoods. A snood is a short length of line which is attached to the main line using a clip or swivel, with the hook at the other end. A trotline can be set so it covers the width of a channel, river, or stream with baited hooks and can be left unattended. There are many ways to set a trotline, with most methods involving weights to hold the cord below the surface of the water. They are used for catching crabs[1] or fish (particularly catfish[2]). Trotlines should be used with caution as they are illegal in many states.

Trotlines can be contrasted with droplines. Whereas a trotline has a series of hooks suspended horizontally in the water, a dropline has a series of hooks suspended vertically in the water.

Variations[edit]

In its use in the commercial crabbing industry (on the Chesapeake Bay for example), a trotline is used as a variation of a setline. Webster's dictionary defines a setline as being "a long heavy fishing line to which several hooks are attached in series." A trotline is defined as "a comparatively short setline used near shore or along streams." Some other common variations of a setline include limblines, throwlines, and juglines. The Virginia Department of Game & Fisheries defines a trotline as "a line without a rod or reel attached that need not be held in the hand or closely attended."

As used for crabbing, a trotline is nothing more than a long line, resting on the bottom and anchored at both ends, to which a series of baits are attached at intervals of two to six feet. The baits are attached to the main line by simple slipknots or by shorter lines called dropper lines (known as trots or snoods.) Crab trotlines are usually baited with chicken necks, chicken livers, bull lips, eels or other inexpensive baits. Maryland blue crabs are harvested by waterman on small workboats using trotlines and crab pots. When caught by trotlines, the line is set and the workboat moves slowly end to end, bringing the line to the surface where the waterman catches the crab. Crabs on a trotline are not hooked, they are simply netted by the waterman at the surface, with the workboat moving slowly enough through the water that the crab does not discern movement as it eats the bait. The crab having been netted at the surface, the trotline moves back to or toward the bottom with the same bait intact to attract another crab.

Depending on the length of the trotline (usually from at least 100 yards and up to a mile), a commercial waterman can catch anywhere from 4 bushels to 20 bushels of crabs daily.

Construction[edit]

Constructing a trotline is quite simple. Basic supplies needed are fishing hooks, clamps, swivels, fishing line, and a durable cord or lightweight rope used for the main line. Before constructing the trotline, it is a good idea to measure the span of the body of water being fished in order to give the main line an appropriate length. Once this is done, drop lines are set along the main line by threading clamps on the line with swivels between them. Fishing line is attached to the swivels and hooks are tied to the end of the fishing line.

Typically, the drop lines are set so that the hook of one line can not touch the hook of another line, to prevent the fish from getting tangled up in multiple lines, or getting tangled in lines with other fish already on the line. This might mean using lines just over 1 foot long and having the lines spaced in 3 foot intervals. It is also typical to avoid setting lines directly over stumps, branches or other obstacles that might cause the fish to get tangled. This is done so that any released fish has a better chance of being in good health.

Weighting the line is a matter of personal preference. In areas along rivers and channels with strong currents, large weights may be added to keep the line from being pulled close to the surface as the water passes over the line. Most weights used on trotlines are homemade as typical weights used by anglers do not weigh enough to keep the line in place. These may be made out of cement, cinder blocks, or even small boat anchors. Another common weight used are old fashioned window weights.

Setting the line[edit]

It is important to make sure that the area where the line is to be set is free of swimmers, boaters, or other people on or near the water as it is difficult to detect where a trotline is while it is underwater. It is easy to get tangled in the line and for hooks to become embedded in a person's skin, making the need for proper marking of the line crucial. A float on each side of a section of channel is a good indication that a trotline has been set.

Setting the line consists of anchoring one end to one side of the channel, then taking the line out to the other side, baiting the hooks while this is being done. Trees or rocks make good anchor points for trotlines, but attention should be given that the line is not tied around rough or sharp edges that might cut through the line.

Once the line is set, the angler need only check the line periodically throughout the day to see if any fish have been caught. While checking the line, one can also replace bait, untangle drop lines, and retrieve any fish on the line. Care is needed when checking or setting the line to make sure that no one is accidentally hooked in any part of the process.

Be sure to check local and state regulations as trotlines are not legal for use in all areas. Additionally, many localities that allow trotlines do not allow the use of live bait fish, particularly in areas with populations of largemouth bass or similar predator fish, as they can be severely injured or killed when attempting to escape. This is why cut bait is the most commonly used bait for attracting catfish.

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