An inside look at carp biology, behavior, and the techniques needed to sight fish for them successfully.
Clouds of mud were an indication that the big fish was preoccupied with feeding. Its large tail stood upright just beneath the surface of the water. The brute rooted the bottom for food, head pointed downward as its mouth vacuumed the shallow lake bed for a meal.
Although engrossed in eating and not completely on guard, it would still not be easy getting this wary adversary to take a fly. A stealthy approach to the water’s edge was mandatory. I watched and waited for just the right opportunity.
The fish turned away from me and continued to “mud” vigorously, presenting a small window of opportunity. A roll cast placed the fly on the edge of the muck cloud, allowing the imitation pattern to descend to the bottom undetected.
After what seemed like an eternity, the fly line twitched. I raised the rod to set the hook.
The fish responded immediately, and it was off to the races. The first straightaway run took all the fly line and more than half the backing from the reel. Then the fish surfaced and thrashed atop the water, its body twisting around the line. But the small hook held and the leader remained intact.
The bruiser then headed directly for a clump of overhanging trees. Eventually I regained backing and fly line and maneuvered the fish close to shore. Readying the net, I was about to congratulate myself on a job well done when it took off again, heading once more for the trees.
This time, however, when all the line was gathered back onto the reel, I was able to slide the net under 14 pounds of cyprinus carpio—the common carp.
Worthy Of Respect
Some anglers might have been disappointed by the end result, but I was not in the least let down by that carp. Some might be inclined to snub their noses at carp and dismiss them as nothing more than an invasive “trash fish.” To do so, however, would be a huge mistake.
Our European fishing counterparts have long known the sporting qualities of this bronze and yellow bomber. Today, anglers on our side of the “big pond” are also discovering the recreational value of carp, especially when targeting them with fly rods and light spinning equipment.
Add to that the challenge of sight casting to these fish and you have the makings of some freshwater angling that is tough to beat.
Carp Biology And Behavior
Carp are omnipresent and can be found in most lakes, ponds, slow-moving rivers, and meandering streams across the country. Although originally introduced from Asia and not native to North America, they have established strong populations and thrive in many waters—often at the expense of other fish species.
The common carp is one of the largest members of the minnow family. They are adaptive, resilient, intelligent, and wary. Carp can live a long time, with documented specimens exceeding 65 years of age and weighing more than 90 pounds. Most anglers, however, can expect to encounter carp ranging from about 4 to 30 pounds.
Carp rely heavily on their senses to survive and feed, an aspect of their physiology that anglers must understand. Their fleshy mouths are designed for bottom feeding and rooting among muck and vegetation. Barbels located on either side of the mouth help carp detect food through both taste and touch.
While carp use all of their senses when feeding, smell and taste are paramount. They can make quick decisions about whether a potential food item is edible. What a carp cannot see is often detected by its barbels.
Of particular importance is the orientation of a carp’s eyes, which creates a blind spot directly in front of and below the snout. While the window for presentation is small, a fly or bait dropped softly into that zone will often be detected by the fish’s barbels.
If the fish is not spooked and the offering appears suitable for consumption, the angler may be rewarded with a strike. However, not every encounter results in a hook-up. Carp often refuse more food than they ingest and can spit out an undesirable offering in the blink of an eye.
The Art Of Sight Fishing
Traditional European carp fishing—and much of the carp fishing practiced in the United States—relies on bait and a “sit-and-wait” approach. Personally, I prefer to move about and find my fish.
That is what drew me to carp fishing in the first place: the opportunity to see the fish and cast a fly to them. In shallow ponds and backwaters off river channels, especially during periods of bright sunlight, carp can often be spotted as dark, elongated shapes either resting or slowly cruising like submerged logs.
Spotting carp is the easy part. Casting to them is another matter entirely. Carp are at least as wary as trout. The key is getting close enough to present a bait, lure, or fly effectively. Unlike bass, which may be attracted to the splash of a lure, carp will often bolt at the first sign of unnatural disturbance.
Sight casting to carp therefore requires a completely different methodology than simply soaking bait on the bottom or fishing areas preconditioned with chum. Whether using flies or artificial baits, the presentation must be natural and non-threatening.
Like many forms of visual angling, sight casting to carp has become something of an art form, with anglers and guides increasingly specializing in this approach.
Understanding The Carp Menu
Carp are omnivorous feeders. Their diet includes aquatic plants, worms, insects, and crustaceans. Feeding behavior often depends on the type of water they inhabit.
In large impoundments, rivers, and natural lakes where carp feed primarily on natural forage, they are very receptive to artificial baits such as flies and small soft plastics. In these environments carp will track and consume slowly retrieved baits that imitate natural prey. Carp will also take flies presented on the surface.
At the opposite end of the spectrum are urban duck ponds, where carp feeding behavior is strongly influenced by people feeding waterfowl. In these locations carp quickly learn to feed on bread, corn, and other scraps falling from above.
When ducks are being fed, carp often gather beneath them to intercept falling food. Under these circumstances flies that imitate bread pieces or clusters of corn can be extremely effective. At different times of the year flies or small artificials that imitate berries, algae, or aquatic plants can also produce strikes.
Like many fish species, carp often feed more aggressively as water temperatures cool in late fall and early winter, sometimes showing less caution than usual.
Smarter Than You Think
Carp are remarkably intelligent fish and appear capable of learning from experience. It almost seems as though they can recall positive and negative encounters and adjust their behavior accordingly.
I have fished small ponds where carp eagerly took flies or artificials during one trip, only to completely reject the same offerings during subsequent outings. The refusals were so decisive it seemed as though the fish recognized the deceptive bait as danger.
Was it the same fish that had been caught previously? Or did other carp learn from witnessing the experience? I suspect both. This behavior makes carp one of the most challenging species to fool with artificial baits.
Stealth and Approach
The most critical element in carp fishing is stealth.
This begins with how the angler approaches the water. Take a position that provides a broad view of the area and spend time observing before making a cast.
In shallow ponds the presence of carp is often obvious. Their log-like shapes are easy to recognize, either resting or slowly cruising. Areas with higher fish density and activity naturally offer better opportunities.
At the same time, pay attention to nearshore water where carp may rest in shallow flats, eddies, or slow-moving sloughs.
Few things are more frustrating than walking up to the shoreline and immediately spooking a group of large carp lying in shallow water. Once they bolt, the chances of catching them that day are slim. Like bonefish, when carp flee they often trigger other fish to scatter as well.
Carp also possess a keen sense of hearing. Heavy footsteps along the bank can send them racing away, leaving nothing but widening wakes on the surface.
When that happens, it is best to move on and allow the area time to settle. Often those same fish will return after they calm down.
Choosing The Right Moment
Carp also have reasonably good eyesight. When approached closely along the shoreline they can easily detect anglers if movements are sudden or unnatural.
Move slowly and deliberately, especially when wading. Wearing drab or camouflage clothing can also help reduce visibility.
Just as important is choosing the right moment to cast. If you encounter fish milling around but not actively feeding, casting too soon will likely spook them.
Wait until they bury their snouts into the bottom and begin rooting for food. At that point, place the fly within the plume of mud and slightly ahead of the fish’s path. This positioning takes advantage of the blind spot directly in front of the carp’s snout.
Targeting individual fish or small groups of two or three also increases success. Large schools simply have too many sets of senses working at once, making stealth presentations far more difficult.
Flies, Baits, and Tackle
Artificial offerings for carp generally fall into two categories: those that imitate natural food sources and those that replicate introduced foods.
The latter group includes imitations of corn, bread, dough balls, and other processed feed items. Natural imitations include hellgrammites, crayfish, berries, aquatic plants, worms, shrimp, and insects.
Many nymph patterns and small streamers commonly used for trout or smallmouth bass work very well for carp. Small scented soft plastics can also be extremely effective. Liquid scents can enhance artificial baits as well. Crawfish, nightcrawler, crab, shrimp, sardine, and squid scents all produce results.
For sight casting, lighter tackle is generally preferred to minimize disturbance on the water. Six- to 8-pound-test line and 6-weight fly rods work well for most situations. Carp can be very line-shy, so fluorocarbon or hybrid lines are often the best choice.
Carp are finicky, wary, and often highly discriminating feeders, making them one of the most challenging freshwater species to pursue with artificial baits.
But fool one of these pond giants into eating a fly or lure, and you are in for an unforgettable battle.
