I heard a saying, if you want to understand the bass, study the shad. That makes a lot of sense to me.

 

So... where do I begin in studying shad?

 

What varieties do I need to study? Will just studying threadfin be sufficient, or do I need to study each variety individually?

 

What are the common types of shad, threadfin, gizzard, golden shiners, what else?

 

Might as well study crawdads too, where do I go for that?

 

Are there articles or books or videos on the subject anyone knows of?

I got nothing on the shad deal, but here's some crawfish info to get you started. 

The following article appeared in Bassmaster and was written by Peter B. Mathiesen with help from John Tertuliani, a biologist for the U.S. Department of the Interior in Columbus, Ohio.

 

 Although I believe this essay was written primarily with green bass in mind, I found it to be quite helpful because I realized how often brown bass up here hunt, eat, and regularly rely on crawfish as a major part of their diet.

 

 Knowing Crawfish as Bass Forage

 

"Knowing the mating and molting rituals of crawfish will give you the upper hand when using imitation baits.

Most bass anglers use crawfish imitations without a very clear understanding of why they should be throwing them, and more importantly when. All of us know that crawfish lures are often effective and sometimes the only go-to bait of the day. But to truly understand when you need to use a crawfish bait, you have to understand why bass eat them and when this forage is most appetizing to the quarry anglers seek.

  

   Crawfish are everywhere: ditches, frequently flooded agricultural fields, almost all ponds and, of course, your favorite impoundment or river. There's not a state in the contiguous 48 that doesn't have millions of them swimming around feeding the local bass populous, not to mention Cajuns and the occasional Cajun wannabe.

 

   Intimate knowledge of crawfish behavior will empower you to fully exploit baits that imitate this popular dinner item of bass — and going back to science class is your ticket to information. Bassmaster wants to take you back to school with some of the most knowledgeable freshwater lobstermen in the industry. Keep in mind that the parameters, times and conditions that will be discussed vary from water to water, subspecies to subspecies and latitude to latitude.

 

   Like all creatures, crawfish are determined to mate, eat and protect themselves from predators. Understanding the timing of these events is key to consistently taking bass on crawfish imitations.

 

Love on the rocks

  February through May is the first major period of crawfish activity, based on geographic location. When the water temperature reaches approximately 50 degrees, crawfish emerge from rock crevices into the great wide open and begin looking for receptive females. 

 

   Many of the emerging crawfish males and females are still sexually active from the previous fall. What's significant about this two to three week period in spring (depending on rising water temperature), is that it's one of the few times males walk on top of rocks, exposing themselves to bass.

 

   Trapping studies have revealed that below 45 degrees, crawfish have little to no activity while buried in mud burrows or rock crevices. But when the water rises to 50 degrees, it's a whole new ballgame.

 

   Where will bass be picking off these vulnerable mudbugs? Rocks will point the way. It may sound oversimplified, but rocky substrate has the highest concentration of exposed crawfish, which in turn translates to the greatest numbers of feeding bass.

 

   Prime conditions in most bass watersheds combine 50-degree average water temperature with rocks clean of silt or mud. Unlike bass that clean their spawning ground with their tails, crawfish rely on current or wave action to do their housework. The rocks must be clean to open up caves that can create endless lattices of spawning habitat. That may be at 3 feet of water on a wind-swept point, or at 30 feet on a small hump in the middle of the lake. Whether you're fishing in Alabama in February or Michigan in May, the formulation of season, clean rock and ideal temperature is guaranteed to attract most of the mating crawfish — and feeding bass — in the area.

 

   Depending on the species, crawfish can and will spawn in mud. However, they rarely do so if clean, rocky habitat is available.  One of the ways bass locate crawfish is by sound. "A crawfish moving on a rock makes a tapping/clicking noise. Bass use this sound to locate crawfish," said Tertuliani.

 

   Crawfish also are light sensitive. Water clarity and penetrating sunlight are key ingredients to active, quality habitat. If the prime habitat happens to be in shallow water or is more exposed to direct sunlight, low light or cloudy days often provide better fishing than bright afternoons.

 

The naked truth

 After mating, the females burrow into a cave and fertilize their eggs with the sperm that has been deposited on them by the males. The males then molt, losing their calcified sexual organs, and quickly hide. "The molt" as it is often referred to, is supposed to be the time bass gorge on crawfish. This may not be the case. "Many anglers associate molting with intense bass activity on crawfish baits in the spring. And actually, this spike in activity is most likely due to the vulnerability of crawfish during the mating cycle," said Tertuliani.

 

   After the molt, males return to a reclusive pattern and are not as available to bass as they were when they were mating. They will feed in their cave burrows if possible, and only expose themselves in the evening or in low light conditions.

 

   The molt will dramatically change the color of crawfish from a camouflage olive/brown, to a bright orange or red cast, making them an easy visual target for bass. But understand that a bass must work more diligently, and expend much more energy to catch a crawfish during the molt than during the mating cycle.

 

   Meanwhile, the females will hatch their eggs in 30 days or so (depending on water temperatures). The hatchlings stay attached to the female and molt every two to seven days, depending on species. After the third molt, when they reach approximately one-half inch in length, they fall off their mother. The females quickly molt and go into a quiet summer low light feeding pattern, staying in the rock crevices as much as possible.

 

   The little crawfish fall into the rocks, where they molt multiple times and eat, until the fall — when most become adults, depending on the length of the growing season. During their early summer growth period, the greatest threat to the juvenile crawfish comes from chubs and bottom feeders, not bass.

 

Fall is the best

When fall arrives and you're throwing a shad imitation, revisit the rocks you fished in the spring with a crawfish bait. The fall mating cycle is actually the most intense and often is completely ignored by bass anglers. The process can be especially intense in southern latitudes. The fall mating period is made up of all the adult crawfish that are sexually mature. There are species exceptions, and temperatures falling too rapidly below 45 degrees can shut it down early, sending the crawfish into a dormant state.

 

 Fish the fall the same way you fish the spring, and you'll find the fall mating cycle is a bonanza.

 

No legs, no claws, no glory

The research group at Pure Fishing in Spirit Lake, Iowa, is actively seeking information on crawfish behavior. Pure Fishing manages one of the largest live fish behavioral test facilities in the world and statistically measures fish reaction to baits and key foods.

 

   "We are amazed at many of the findings that have been discovered in our facility in the last few years," said John Prochnow, Product Development Manager. Led by Dr. Keith Jones, multiple tests were made with live bass over several months in a controlled environment to measure what kind of shape the bass preferred when keying on soft plastic crawfish imitations.

 

   For 60 days, 450 largemouth bass, plucked from the same environment, were tested using a robotic arm and a strike counter. Each group of bass was presented a crawfish bait at the same speed and angle of attack. The bass tested had never seen the bait that was presented (it was a prototype). The test then continued, with one pincer removed, then a second pincer removed, and finally, the legs. The soft bait that had no appendages (no legs or pincers, just a body and tail) had the greatest number of strikes.

 

   "The final bait looked almost like a large shrimp," said Proctnov. The research was incorporated into the Berkley Flippin Tube. "We wanted to market a craw with no appendages, but our market research said no one would buy it," Proctnov added.

 

Living on the bottom

Crawfish live on the bottom. That's not to say you can't catch a bass in open water with a crawfish bait. But a live crawfish will not leave the rocks unless it is forced to.

 

   During the summer, bass feeding patterns shift to low light or darkness. Again, bouncing a plastic craw over prime habitat in daylight hours can result in catching bass that are keyed into the pattern, waiting for a midday meal. But for consistent action during dog days, move to deeper, darker rock substrate.

 

   One of the best ways to fish crawfish baits, hard plastic or soft, is to work them parallel to rocky banks, changing depths until you find fish. One of the most important elements of making a believable presentation with a crawfish imitation is to keep contact with the rock or cover you are fishing. The ticking of a crankbait bill or lead sinker against a rock imitates the clicking of real crawfish — enticing bass to strike. Plus, contacting the cover ensures your bait is hugging the bottom, where crawfish live. Add internal rattles to plastic baits, and allow the bait to sit for an extended period of time. Small shakes of the rod tip will activate the rattles, drawing bass to your offering.

 

   Most importantly, follow closely the rituals of this favorite bass forage, and you'll be catching bass on crawfish baits because of knowledge, not just luck.

 

Cutting edge soft bait

Ken Huddleston, the creator of the famous Castaic Trout, is now in the custom soft bait business. "I want to make the most accurate imitation I'm capable of manufacturing. Right now, I make all the baits personally and am committed to keeping my manufacturing in the U.S.A., and refuse to move it offshore." Said Huddleston.

 

   If there has ever been a modern-day renegade bait designer, Ken Huddleston is the guy. His attention to detail and assurance of perfect action has created an almost cult-like demand for the few anglers in the know. The Huddleston Deluxe Bait Co., makes a very lifelike crawfish bait called the Huddle-Bug. It can only be purchased at a select handful of shops in California. You can buy them on the Internet at Ken's site (www.huddleston deluxe.com) for about $6 for a pack of five.

 

Pro's tricks

 Curt Samo, a fishing pro from Rockford, Ill., takes the guesswork out of color and size. In every lake or river system he fishes, Samo launches a crawfish trap the day before the tournament he is fishing. He uses a simple South Bend Crawfish Trap, and stops at the local convenience store on the way to the lake and buys cat food for bait.

 

   "I walk several yards down the bank from the boat ramp, because it's almost always a rocky shore, set the trap and leave it overnight. In the morning, I pull the trap and see the color and size of the local population, match the baits and get to work. On a northern lake, Samo found an almost fluorescent orange crawfish occupying the trap. "I changed baits, matched the color and have cashed a check in 90 percent of the tournaments I've fished on that water since," said Samo."

 

While I do not utilize the crawfish trap deal to check on the status of the bugs in my area, that doesn't seem like a bad plan, if one has the opportunity.  However, once I can get a few and if & when the state regs permit fish retention, my live well is often littered with all the information I might need. 

 

A-Jay

 

You might want to find out what prey species are in the waters you fish and study them.  I know the Kentucky Department of Fish and Wildlife do not like shad in some small lakes.

35 minutes ago, A-Jay said:

I got nothing on the shad deal, but here's some crawfish info to get you started. 

The following article appeared in Bassmaster and was written by Peter B. Mathiesen with help from John Tertuliani, a biologist for the U.S. Department of the Interior in Columbus, Ohio.

 

 Although I believe this essay was written primarily with green bass in mind, I found it to be quite helpful because I realized how often brown bass up here to hunt, eat, and regularly rely on crawfish as a major part of their diet.

 

 Knowing Crawfish as Bass Forage

 

"Knowing the mating and molting rituals of crawfish will give you the upper hand when using imitation baits.

Most bass anglers use crawfish imitations without a very clear understanding of why they should be throwing them, and more importantly when. All of us know that crawfish lures are often effective and sometimes the only go-to bait of the day. But to truly understand when you need to use a crawfish bait, you have to understand why bass eat them and when this forage is most appetizing to the quarry anglers seek.

  

   Crawfish are everywhere: ditches, frequently flooded agricultural fields, almost all ponds and, of course, your favorite impoundment or river. There's not a state in the contiguous 48 that doesn't have millions of them swimming around feeding the local bass populous, not to mention Cajuns and the occasional Cajun wannabe.

 

   Intimate knowledge of crawfish behavior will empower you to fully exploit baits that imitate this popular dinner item of bass — and going back to science class is your ticket to information. Bassmaster wants to take you back to school with some of the most knowledgeable freshwater lobstermen in the industry. Keep in mind that the parameters, times and conditions that will be discussed vary from water to water, subspecies to subspecies and latitude to latitude.

 

   Like all creatures, crawfish are determined to mate, eat and protect themselves from predators. Understanding the timing of these events is key to consistently taking bass on crawfish imitations.

 

Love on the rocks

  February through May is the first major period of crawfish activity, based on geographic location. When the water temperature reaches approximately 50 degrees, crawfish emerge from rock crevices into the great wide open and begin looking for receptive females. 

 

   Many of the emerging crawfish males and females are still sexually active from the previous fall. What's significant about this two to three week period in spring (depending on rising water temperature), is that it's one of the few times males walk on top of rocks, exposing themselves to bass.

 

   Trapping studies have revealed that below 45 degrees, crawfish have little to no activity while buried in mud burrows or rock crevices. But when the water rises to 50 degrees, it's a whole new ballgame.

 

   Where will bass be picking off these vulnerable mudbugs? Rocks will point the way. It may sound oversimplified, but rocky substrate has the highest concentration of exposed crawfish, which in turn translates to the greatest numbers of feeding bass.

 

   Prime conditions in most bass watersheds combine 50-degree average water temperature with rocks clean of silt or mud. Unlike bass that clean their spawning ground with their tails, crawfish rely on current or wave action to do their housework. The rocks must be clean to open up caves that can create endless lattices of spawning habitat. That may be at 3 feet of water on a wind-swept point, or at 30 feet on a small hump in the middle of the lake. Whether you're fishing in Alabama in February or Michigan in May, the formulation of season, clean rock and ideal temperature is guaranteed to attract most of the mating crawfish — and feeding bass — in the area.

 

   Depending on the species, crawfish can and will spawn in mud. However, they rarely do so if clean, rocky habitat is available.  One of the ways bass locate crawfish is by sound. "A crawfish moving on a rock makes a tapping/clicking noise. Bass use this sound to locate crawfish," said Tertuliani.

 

   Crawfish also are light sensitive. Water clarity and penetrating sunlight are key ingredients to active, quality habitat. If the prime habitat happens to be in shallow water or is more exposed to direct sunlight, low light or cloudy days often provide better fishing than bright afternoons.

 

The naked truth

 After mating, the females burrow into a cave and fertilize their eggs with the sperm that has been deposited on them by the males. The males then molt, losing their calcified sexual organs, and quickly hide. "The molt" as it is often referred to, is supposed to be the time bass gorge on crawfish. This may not be the case. "Many anglers associate molting with intense bass activity on crawfish baits in the spring. And actually, this spike in activity is most likely due to the vulnerability of crawfish during the mating cycle," said Tertuliani.

 

   After the molt, males return to a reclusive pattern and are not as available to bass as they were when they were mating. They will feed in their cave burrows if possible, and only expose themselves in the evening or in low light conditions.

 

   The molt will dramatically change the color of crawfish from a camouflage olive/brown, to a bright orange or red cast, making them an easy visual target for bass. But understand that a bass must work more diligently, and expend much more energy to catch a crawfish during the molt than during the mating cycle.

 

   Meanwhile, the females will hatch their eggs in 30 days or so (depending on water temperatures). The hatchlings stay attached to the female and molt every two to seven days, depending on species. After the third molt, when they reach approximately one-half inch in length, they fall off their mother. The females quickly molt and go into a quiet summer low light feeding pattern, staying in the rock crevices as much as possible.

 

   The little crawfish fall into the rocks, where they molt multiple times and eat, until the fall — when most become adults, depending on the length of the growing season. During their early summer growth period, the greatest threat to the juvenile crawfish comes from chubs and bottom feeders, not bass.

 

Fall is the best

When fall arrives and you're throwing a shad imitation, revisit the rocks you fished in the spring with a crawfish bait. The fall mating cycle is actually the most intense and often is completely ignored by bass anglers. The process can be especially intense in southern latitudes. The fall mating period is made up of all the adult crawfish that are sexually mature. There are species exceptions, and temperatures falling too rapidly below 45 degrees can shut it down early, sending the crawfish into a dormant state.

 

 Fish the fall the same way you fish the spring, and you'll find the fall mating cycle is a bonanza.

 

No legs, no claws, no glory

The research group at Pure Fishing in Spirit Lake, Iowa, is actively seeking information on crawfish behavior. Pure Fishing manages one of the largest live fish behavioral test facilities in the world and statistically measures fish reaction to baits and key foods.

 

   "We are amazed at many of the findings that have been discovered in our facility in the last few years," said John Prochnow, Product Development Manager. Led by Dr. Keith Jones, multiple tests were made with live bass over several months in a controlled environment to measure what kind of shape the bass preferred when keying on soft plastic crawfish imitations.

 

   For 60 days, 450 largemouth bass, plucked from the same environment, were tested using a robotic arm and a strike counter. Each group of bass was presented a crawfish bait at the same speed and angle of attack. The bass tested had never seen the bait that was presented (it was a prototype). The test then continued, with one pincer removed, then a second pincer removed, and finally, the legs. The soft bait that had no appendages (no legs or pincers, just a body and tail) had the greatest number of strikes.

 

   "The final bait looked almost like a large shrimp," said Proctnov. The research was incorporated into the Berkley Flippin Tube. "We wanted to market a craw with no appendages, but our market research said no one would buy it," Proctnov added.

 

Living on the bottom

Crawfish live on the bottom. That's not to say you can't catch a bass in open water with a crawfish bait. But a live crawfish will not leave the rocks unless it is forced to.

 

   During the summer, bass feeding patterns shift to low light or darkness. Again, bouncing a plastic craw over prime habitat in daylight hours can result in catching bass that are keyed into the pattern, waiting for a midday meal. But for consistent action during dog days, move to deeper, darker rock substrate.

 

   One of the best ways to fish crawfish baits, hard plastic or soft, is to work them parallel to rocky banks, changing depths until you find fish. One of the most important elements of making a believable presentation with a crawfish imitation is to keep contact with the rock or cover you are fishing. The ticking of a crankbait bill or lead sinker against a rock imitates the clicking of real crawfish — enticing bass to strike. Plus, contacting the cover ensures your bait is hugging the bottom, where crawfish live. Add internal rattles to plastic baits, and allow the bait to sit for an extended period of time. Small shakes of the rod tip will activate the rattles, drawing bass to your offering.

 

   Most importantly, follow closely the rituals of this favorite bass forage, and you'll be catching bass on crawfish baits because of knowledge, not just luck.

 

Cutting edge soft bait

Ken Huddleston, the creator of the famous Castaic Trout, is now in the custom soft bait business. "I want to make the most accurate imitation I'm capable of manufacturing. Right now, I make all the baits personally and am committed to keeping my manufacturing in the U.S.A., and refuse to move it offshore." Said Huddleston.

 

   If there has ever been a modern-day renegade bait designer, Ken Huddleston is the guy. His attention to detail and assurance of perfect action has created an almost cult-like demand for the few anglers in the know. The Huddleston Deluxe Bait Co., makes a very lifelike crawfish bait called the Huddle-Bug. It can only be purchased at a select handful of shops in California. You can buy them on the Internet at Ken's site (www.huddleston deluxe.com) for about $6 for a pack of five.

 

Pro's tricks

 Curt Samo, a fishing pro from Rockford, Ill., takes the guesswork out of color and size. In every lake or river system he fishes, Samo launches a crawfish trap the day before the tournament he is fishing. He uses a simple South Bend Crawfish Trap, and stops at the local convenience store on the way to the lake and buys cat food for bait.

 

   "I walk several yards down the bank from the boat ramp, because it's almost always a rocky shore, set the trap and leave it overnight. In the morning, I pull the trap and see the color and size of the local population, match the baits and get to work. On a northern lake, Samo found an almost fluorescent orange crawfish occupying the trap. "I changed baits, matched the color and have cashed a check in 90 percent of the tournaments I've fished on that water since," said Samo."

 

While I do not utilize the crawfish trap deal to check on the status of the bugs in my area, that doesn't seem like a bad plan, if one has the opportunity.  However, once I can get a few and if & when the state regs permit fish retention, my live well is often littered with all the information I might need. 

 

A-Jay

 

Thank you very much.

 

 

27 minutes ago, Tennessee Boy said:

You might want to find out what prey species are in the waters you fish and study them.  I know the Kentucky Department of Fish and Wildlife do not like shad in some small lakes.

This is dumb, how does one find out what types are in the lake unless you find one or a bass spits one up? I've found a threadfin before, best I recall. I guess it could have been a smaller gizzard shad, as they have a thread. I don't know how to tell them apart... yet.

1 minute ago, Bazoo said:

This is dumb, how does one find out what types are in the lake

Ask your DNR what species are in the lake....anything from shad to sunnies to small pike and even young bass are targeted by larger bass - not to mention crayfish....they'll eat practically anything.

22 minutes ago, Bazoo said:

how does one find out what types are in the lake unless you find one or a bass spits one up? 

I fished small creeks when I was a teenager.  I went to my local TWRA office,  walked up to the front desk,  and ask if they had any information on the creeks in the area.  The receptionist call one of the biologist,  he invited me back to his office and started pulling stuff out of his filing cabinets and making copies of it.  I left with a stack of papers on creeks in middle Tennessee and what fish were in them.  

 

In 1994 a professor at the University of Tennessee published an almost 700 page book called the Fishes of Tennessee.  It has range maps for each species that show what bodies of water in the state they are found in.

 

None of that helps you in Kentucky but you get the idea.  There's good information to be found if you just look for it.

2 minutes ago, Tennessee Boy said:

I fished small creeks when I was a teenager.  I went to my local TWRA office,  walked up to the front desk,  and ask if they had any information on the creeks in the area.  The receptionist call one of the biologist,  he invited me back to his office and started pulling stuff out of his filing cabinets and making copies of it.  I left with a stack of papers on creeks in middle Tennessee and what fish were in them.  

 

In 1994 a professor at the University of Tennessee published an almost 700 page book called the Fishes of Tennessee.  It has range maps for each species that show what bodies of water in the state they are found in..  

 

None of that helps you in Kentucky but you get the idea.  There's good information to be found if you just look for it.

Okay, that gives me some direction, thank you.

Learning to walk the bank and identify the tiny minnows that hide right along the shores edge is half the fun of learning a new fishery and you’ll be surprised almost every time by what you’ve got lurking in there once you get down to brass tacks.  Mosquito fish, yellow perch, golden shiners, sunfish, crappie, carp minnows, tilapia, trout etc - ya just don’t know til you start to pay attention to what you’re seeing.

 

One of the many reasons, I’m a strong advocate of fishing one body of water until you know it inside and out is this kind of stuff! You can fish a pond that drains into another pond and literally the answers to these questions will be different for both ponds let alone two lakes in a town or something like that.

@A-Jay

That's a ridiculously superior and informative post.

56 minutes ago, Pat Brown said:

Learning to walk the bank and identify the tiny minnows that hide right along the shores edge is half the fun of learning a new fishery and you’ll be surprised almost every time by what you’ve got lurking in there once you get down to brass tacks.  Mosquito fish, yellow perch, golden shiners, sunfish, crappie, carp minnows, tilapia, trout etc - ya just don’t know til you start to pay attention to what you’re seeing.

 

One of the many reasons, I’m a strong advocate of fishing one body of water until you know it inside and out is this kind of stuff! You can fish a pond that drains into another pond and literally the answers to these questions will be different for both ponds let alone two lakes in a town or something like that.

I like doing that too. I know that the city lake I fish has mosquito fish because the boy caught some and kept them for a pet for quite some time. I know that it has bluegill, and it has green sunfish. It also has some golden colored baitfish. I aint sure what they are, but I started using a gold crankbait and it's FIRE!

10 hours ago, A-Jay said:

I got nothing on the shad deal, but here's some crawfish info to get you started. 

The following article appeared in Bassmaster and was written by Peter B. Mathiesen with help from John Tertuliani, a biologist for the U.S. Department of the Interior in Columbus, Ohio.

 

 Although I believe this essay was written primarily with green bass in mind, I found it to be quite helpful because I realized how often brown bass up here hunt, eat, and regularly rely on crawfish as a major part of their diet.

 

 Knowing Crawfish as Bass Forage

 

"Knowing the mating and molting rituals of crawfish will give you the upper hand when using imitation baits.

Most bass anglers use crawfish imitations without a very clear understanding of why they should be throwing them, and more importantly when. All of us know that crawfish lures are often effective and sometimes the only go-to bait of the day. But to truly understand when you need to use a crawfish bait, you have to understand why bass eat them and when this forage is most appetizing to the quarry anglers seek.

  

   Crawfish are everywhere: ditches, frequently flooded agricultural fields, almost all ponds and, of course, your favorite impoundment or river. There's not a state in the contiguous 48 that doesn't have millions of them swimming around feeding the local bass populous, not to mention Cajuns and the occasional Cajun wannabe.

 

   Intimate knowledge of crawfish behavior will empower you to fully exploit baits that imitate this popular dinner item of bass — and going back to science class is your ticket to information. Bassmaster wants to take you back to school with some of the most knowledgeable freshwater lobstermen in the industry. Keep in mind that the parameters, times and conditions that will be discussed vary from water to water, subspecies to subspecies and latitude to latitude.

 

   Like all creatures, crawfish are determined to mate, eat and protect themselves from predators. Understanding the timing of these events is key to consistently taking bass on crawfish imitations.

 

Love on the rocks

  February through May is the first major period of crawfish activity, based on geographic location. When the water temperature reaches approximately 50 degrees, crawfish emerge from rock crevices into the great wide open and begin looking for receptive females. 

 

   Many of the emerging crawfish males and females are still sexually active from the previous fall. What's significant about this two to three week period in spring (depending on rising water temperature), is that it's one of the few times males walk on top of rocks, exposing themselves to bass.

 

   Trapping studies have revealed that below 45 degrees, crawfish have little to no activity while buried in mud burrows or rock crevices. But when the water rises to 50 degrees, it's a whole new ballgame.

 

   Where will bass be picking off these vulnerable mudbugs? Rocks will point the way. It may sound oversimplified, but rocky substrate has the highest concentration of exposed crawfish, which in turn translates to the greatest numbers of feeding bass.

 

   Prime conditions in most bass watersheds combine 50-degree average water temperature with rocks clean of silt or mud. Unlike bass that clean their spawning ground with their tails, crawfish rely on current or wave action to do their housework. The rocks must be clean to open up caves that can create endless lattices of spawning habitat. That may be at 3 feet of water on a wind-swept point, or at 30 feet on a small hump in the middle of the lake. Whether you're fishing in Alabama in February or Michigan in May, the formulation of season, clean rock and ideal temperature is guaranteed to attract most of the mating crawfish — and feeding bass — in the area.

 

   Depending on the species, crawfish can and will spawn in mud. However, they rarely do so if clean, rocky habitat is available.  One of the ways bass locate crawfish is by sound. "A crawfish moving on a rock makes a tapping/clicking noise. Bass use this sound to locate crawfish," said Tertuliani.

 

   Crawfish also are light sensitive. Water clarity and penetrating sunlight are key ingredients to active, quality habitat. If the prime habitat happens to be in shallow water or is more exposed to direct sunlight, low light or cloudy days often provide better fishing than bright afternoons.

 

The naked truth

 After mating, the females burrow into a cave and fertilize their eggs with the sperm that has been deposited on them by the males. The males then molt, losing their calcified sexual organs, and quickly hide. "The molt" as it is often referred to, is supposed to be the time bass gorge on crawfish. This may not be the case. "Many anglers associate molting with intense bass activity on crawfish baits in the spring. And actually, this spike in activity is most likely due to the vulnerability of crawfish during the mating cycle," said Tertuliani.

 

   After the molt, males return to a reclusive pattern and are not as available to bass as they were when they were mating. They will feed in their cave burrows if possible, and only expose themselves in the evening or in low light conditions.

 

   The molt will dramatically change the color of crawfish from a camouflage olive/brown, to a bright orange or red cast, making them an easy visual target for bass. But understand that a bass must work more diligently, and expend much more energy to catch a crawfish during the molt than during the mating cycle.

 

   Meanwhile, the females will hatch their eggs in 30 days or so (depending on water temperatures). The hatchlings stay attached to the female and molt every two to seven days, depending on species. After the third molt, when they reach approximately one-half inch in length, they fall off their mother. The females quickly molt and go into a quiet summer low light feeding pattern, staying in the rock crevices as much as possible.

 

   The little crawfish fall into the rocks, where they molt multiple times and eat, until the fall — when most become adults, depending on the length of the growing season. During their early summer growth period, the greatest threat to the juvenile crawfish comes from chubs and bottom feeders, not bass.

 

Fall is the best

When fall arrives and you're throwing a shad imitation, revisit the rocks you fished in the spring with a crawfish bait. The fall mating cycle is actually the most intense and often is completely ignored by bass anglers. The process can be especially intense in southern latitudes. The fall mating period is made up of all the adult crawfish that are sexually mature. There are species exceptions, and temperatures falling too rapidly below 45 degrees can shut it down early, sending the crawfish into a dormant state.

 

 Fish the fall the same way you fish the spring, and you'll find the fall mating cycle is a bonanza.

 

No legs, no claws, no glory

The research group at Pure Fishing in Spirit Lake, Iowa, is actively seeking information on crawfish behavior. Pure Fishing manages one of the largest live fish behavioral test facilities in the world and statistically measures fish reaction to baits and key foods.

 

   "We are amazed at many of the findings that have been discovered in our facility in the last few years," said John Prochnow, Product Development Manager. Led by Dr. Keith Jones, multiple tests were made with live bass over several months in a controlled environment to measure what kind of shape the bass preferred when keying on soft plastic crawfish imitations.

 

   For 60 days, 450 largemouth bass, plucked from the same environment, were tested using a robotic arm and a strike counter. Each group of bass was presented a crawfish bait at the same speed and angle of attack. The bass tested had never seen the bait that was presented (it was a prototype). The test then continued, with one pincer removed, then a second pincer removed, and finally, the legs. The soft bait that had no appendages (no legs or pincers, just a body and tail) had the greatest number of strikes.

 

   "The final bait looked almost like a large shrimp," said Proctnov. The research was incorporated into the Berkley Flippin Tube. "We wanted to market a craw with no appendages, but our market research said no one would buy it," Proctnov added.

 

Living on the bottom

Crawfish live on the bottom. That's not to say you can't catch a bass in open water with a crawfish bait. But a live crawfish will not leave the rocks unless it is forced to.

 

   During the summer, bass feeding patterns shift to low light or darkness. Again, bouncing a plastic craw over prime habitat in daylight hours can result in catching bass that are keyed into the pattern, waiting for a midday meal. But for consistent action during dog days, move to deeper, darker rock substrate.

 

   One of the best ways to fish crawfish baits, hard plastic or soft, is to work them parallel to rocky banks, changing depths until you find fish. One of the most important elements of making a believable presentation with a crawfish imitation is to keep contact with the rock or cover you are fishing. The ticking of a crankbait bill or lead sinker against a rock imitates the clicking of real crawfish — enticing bass to strike. Plus, contacting the cover ensures your bait is hugging the bottom, where crawfish live. Add internal rattles to plastic baits, and allow the bait to sit for an extended period of time. Small shakes of the rod tip will activate the rattles, drawing bass to your offering.

 

   Most importantly, follow closely the rituals of this favorite bass forage, and you'll be catching bass on crawfish baits because of knowledge, not just luck.

 

Cutting edge soft bait

Ken Huddleston, the creator of the famous Castaic Trout, is now in the custom soft bait business. "I want to make the most accurate imitation I'm capable of manufacturing. Right now, I make all the baits personally and am committed to keeping my manufacturing in the U.S.A., and refuse to move it offshore." Said Huddleston.

 

   If there has ever been a modern-day renegade bait designer, Ken Huddleston is the guy. His attention to detail and assurance of perfect action has created an almost cult-like demand for the few anglers in the know. The Huddleston Deluxe Bait Co., makes a very lifelike crawfish bait called the Huddle-Bug. It can only be purchased at a select handful of shops in California. You can buy them on the Internet at Ken's site (www.huddleston deluxe.com) for about $6 for a pack of five.

 

Pro's tricks

 Curt Samo, a fishing pro from Rockford, Ill., takes the guesswork out of color and size. In every lake or river system he fishes, Samo launches a crawfish trap the day before the tournament he is fishing. He uses a simple South Bend Crawfish Trap, and stops at the local convenience store on the way to the lake and buys cat food for bait.

 

   "I walk several yards down the bank from the boat ramp, because it's almost always a rocky shore, set the trap and leave it overnight. In the morning, I pull the trap and see the color and size of the local population, match the baits and get to work. On a northern lake, Samo found an almost fluorescent orange crawfish occupying the trap. "I changed baits, matched the color and have cashed a check in 90 percent of the tournaments I've fished on that water since," said Samo."

 

While I do not utilize the crawfish trap deal to check on the status of the bugs in my area, that doesn't seem like a bad plan, if one has the opportunity.  However, once I can get a few and if & when the state regs permit fish retention, my live well is often littered with all the information I might need. 

 

A-Jay

 

A-Jay, this is great info. Thank you sir

Bass After Dark Podcast has an episode for both I believe (100% sure they have crawfish). They bring in real scientists to discuss. May be a good starting point and the expert guests could be your next step. 

On 8/18/2025 at 8:07 PM, Bazoo said:

Thank you very much.

 

 

This is dumb, how does one find out what types are in the lake unless you find one or a bass spits one up? I've found a threadfin before, best I recall. I guess it could have been a smaller gizzard shad, as they have a thread. I don't know how to tell them apart... yet.

Catch a bass, cut it open and study the stomach contents. Fillet and eat it of course. Bass will eat almost anything they can. But nearly every time I've cut one's stomach open it had shad or minnows in it, or nothing at all.

 

Of course they have to eat what's present. I have caught bass with shad and crawfish in their throats. Most ponds and streams near me don't have shad. But if they did, shad would be the blue plate special. I've caught one with an 8" bass sticking out its mouth. Bigger bass can eat more variety. They're more likely to go for a bluegill, crappie, big crawfish, or whatever.

 

 

@Bazoo I don’t know if you can do this at your ponds, but I took a minnow trap and caught what was in there. Kept a little tablet to keep count, wish they had cell phones back then, would’ve had pics too.

With today’s internet you could probably identify them, and go from there. Back then it was the library and local game wardens office. 
I wasn’t a basshead back then, just a curious kid with a summer to kill.

Crawfish info I found to be very useful over the years. DNR, bass site guys, professional articles. But believe it or not I found to do something as simple as putting a few river smallies in the livewell for awhile and checking out what they regurgitated.