StructureSpot

All new shallow barrel habitat increases fish protection and littoral zone habitat.

Our newest, ultra dense, shallow and first ever artificial fish habitat arrangement in a reclaimed plastic barrel, holds hundreds of separate pieces of never before seen cuts and profiles of 100% reclaimed PVC habitat. We’ve found a way to display and ship our most robust habitat creations, tighter and tougher for the fish! Seven inches of thick concrete hold things together in the base and heavily weighted in the bottom of the barrel, standing up in all conditions.

Each completed Barrel habitat is unique and one of a kind, just like we find in nature. Colorful, abstract and always welcoming, fish gravitate into the thousands of individual crevices provide within the intricate and ever changing, detail.

Large footprint and extreme weight hold these towering creations in one place forever. Installation is a breeze. You can simply drag or carry them with the incorporated handles, or use a two wheel dolly cart. Once in the boat, pontoon or on the dock, you can roll them around on edge and push it into the water. It stands up no matter what, on slopes and current areas. Taller, heavier and wider options are always available, contact us today to talk about your ideas and goals.

Shallow Shleaf Ball Barrels
Fishiding Shallow Barrels

Barrels full of fish, hiding spots and ultra dense cover, hit the water for 2021 with unmatched variety, complexity and unlimited flexibility. Ready to sink in minutes, no assembly, materials or additional tools needed, roll into water to and fish!  Unlimited variety available, more sizes coming soon. Ask us about making your own custom size, shape, and included materials to design your own barrels just for your lake, dock, pond or river frontage.

Fishiding eight foot Barrel bush
Tall barrel habitat by Fishiding.com

These new shallow water barrels hold a myriad of hand selected cuts of reclaimed PVC, creating an entire refuge of protection inside.

Weighing just over 150 pounds each complete, they stand 48″ tall and open to a seven foot diameter.

Fishiding barrel habitat
Shallow fish habitat barrels by Fishiding.com

The barrel base is 20″ in diameter and stands almost 8″ tall, full of strong cement.

The reclaimed barrels offer a sturdy and durable container that can be rolled on edge with ease.

Two included cotton rope handles, allow user to slide, lift or pull them off the dock or boat once in position. 

For extreme current applications, the entire barrel can be dug in and planted like a bush, never to move from it’s original position. Coming three on a pallet, they get shipped right to your door, ready to be unfolded and HOUSE FISH THE DAY THEY ARRIVE.

Habitat for shallow water in a barrel by Fishiding.com
Fishiding Habitat http://www.fishiding.com

The Science Behind Fishiding Artificial Fish Habitat (Part 10 of 10):

The Science behind Fishiding Artificial Fish Habitat (part 10 of 10): By David Ewald and Eric Engbretson

Part Ten: Putting it all together-Top takeaways from our ten part series:

• Protection is the key: If the habitat structures are designed and installed in a way that don’t reduce the attack to capture ratio, they provide no benefit for forage species and consequently won’t hold any fish at all. Effective fish habitat must be constructed with a labyrinth of pockets and retreats that are completely inaccessible to larger predators.

• Fish are much more discriminating than we would ever have imagined. Because of that, every aspect of Fishiding habitat structures has a purpose or utility that the fish have shown us they prefer.

• Our research shows that fish prefer complex designs that resemble natural elements like macrophytes or coarse woody habitat-They shy away from assemblages that look foreign and out of place.

• There’s a real distinction between form and function. For artificial fish habitat to have any legitimate purpose at all, it needs to be genuinely functional and cannot just occupy space on the lake floor. Does your artificial habitat provide fish with shade, cover, safety, refuge, and food as well as natural habitat does?

• It’s important to have a good understanding of the target lake’s topography, recruitment history and bio-chemical character. This will ensure that the habitat is placed in a location where it will be best used and where the employment of additional habitat would serve a purpose beneficial to the fish.

• Artificial habitat units located in very close proximity to each other, always outperform single units standing alone. Fish will treat the combined individual units as one large, meandering reef.

• Because we can never really get into a fishes head and our own intuition about what should work is unreliable, testing is imperative to physically see what the fish prefer. There’s no substitute for being in the water with the habitat and seeing it with your own eyes. It gives you the most complete picture of what’s happening within the habitat and how fish are relating to it.

• We have all been thinking much too small. The challenge is not to make something that may function as well as a new Christmas tree, but to have higher aspirations, daring ourselves to design and deploy the kinds of habitat that Mother Nature herself will approve.

Fish Habitat Mats. Simply put, they’re immovable, modular, habitat platforms that an array of habitat components can be secured upon/inside in limitless configurations. They can be carried, rolled or slid around quite easily during assembly, but become virtually immobile once on the lake floor. Hundreds of pounds of safe, dense cover can be secured in one secure cluster. The Mats will create extremely large complexes of cover, breaking a size barrier that has been previously limiting. Now, the dimensions and proportions of the habitat complexes can be measured in yards not feet. They can be as large as you want them, creating the kind of genuine fish-holding habitat that up until now has been unimaginable. We finally have a way to create credible artificial rivals to large pieces of coarse woody habitat, sunken timber, dense beds of vegetation and other kinds of habitat that nature ordinarily provides.

• To improve effectiveness and cost, the habitat needed to be larger, taller and heavier than anything previously considered or produced. These are the factors that shaped the decisions that lead to the design of the new Modular Habitat Mats by Fishiding.com.

Designing and building effective fish habitat is a genuine science. It’s still in its infancy, but we’re learning a great deal every day about the nuances of design and deployment. With today’s deep interest in artificial fish habitat, we’re eager to share our findings with fisheries professionals who want to learn more.

If you’ve missed any part of this series you can catch up at https://structurespot.com/
For more information contact David Ewald at (815) 693-0894
Email: sales@fishiding.com

The Science Behind Fishiding Artificial Fish Habitat: (Part 9 of 10)

Part Nine: Modular Habitat Complexes as Large as City Blocks

As we better understand how to create and assemble habitat components that work best together, we now also see the need to scale the overall complex size accordingly. Habitat installations are vulnerable to all kinds of unique forces underwater. Installation of multiple habitat pieces in one collected group, is now the accepted best practice. Especially in public waters, it can be difficult keeping these individually weighted components all together on the lake floor. Fishing pressure, strong currents, and weather events are just a few causes that can move habitat. To properly install vast amounts of fish habitat and have it permanently remain in a group, a fully engineered and pre-weighted modular attachment system was needed. It also needed to be simple to use, requiring no special equipment, tools or experience. Finally, to improve effectiveness and cost, the habitat needed to be larger, taller and heavier than anything previously considered or produced. These are the factors that shaped the decisions that lead to the design of the new Modular Habitat Mats by Fishiding.com.

Although many different prototypes, designs and sizes of these new mat configurations have been created, none had yet been installed into any of our test waters. As decisions were being made regarding final product sizes, weights and models to begin to offer, a call came in from Laura Salamun, the owner of Point View Resort on the famous Lake of the Ozarks. “Fishing is our thing and it’s important to our resort guests”, she told us. “We want to have them catching fish non-stop, all year long.” This was just the challenge we needed to assess the full scale delivery, assembly and installation of 20 different mats of various configurations. This was a perfect opportunity to test the new Habitat Mats against many of the key metrics: This is a fishing resort with almost constant fishing pressure from shore to over 25 feet off three different floating docks. It’s located on a large public reservoir with stiff current, substantial slope, year-round boating pressure and unpredictable weather events.

A customized layout and set of habitat plans were designed and approved to best accommodate the resort guests and their favorite fishing areas. Mats were specifically designed, selected and placed in spots that would best serve the present fish species. Would our delivery, assembly and installation work as planned?

We had put the time in underwater studying the fish. By scuba diving and recording their interaction with various habitat materials over years, we knew the fish would gravitate into the newly designed complex and stay. The 20 individual mats, habitat models and supplies were shipped down and carried by hand onto the floating docks for assembly and placement. Some mats were completely finished and ready to slide into the water, while others had additional habitat materials attached to them on site to create even more complexity. No cable, rope, wood or brush was used, keeping the entire system snag-free and long lasting.

Today’s video highlights the ease and scale of the Habitat Mat installation at Point View Resort with 20 separate, single level Mats. In the near future, these Mats will be installed in an array of considerably larger sizes, and unique shapes that will weigh thousands of pounds combined. Mats will be stacked into multiple three dimensional layers, creating permanent rooms, tunnels and floors, all built solely for fish habitation. Imagine a kind of underwater housing boom including roadways, parks, grocery stores and schools. Modular complexes each a city block in size and two or three stories tall. Islands of cover linked together for relaxing, hunting or hiding. A fish oasis. Fishiding.

Designing and building effective fish habitat is a genuine science. It’s still in its infancy, but we’re learning a great deal every day about the nuances of design and deployment. With today’s deep interest in artificial fish habitat, we’re eager to share our findings with fisheries professionals who want to learn more.

If you’ve missed any part of this series you can catch up at http://www.structurespot.com
For more information contact David Ewald at https://www.fishiding.com
Phone: (815) 693-0894
Email: sales@fishiding.com

The Science Behind Fishiding Artificial Fish Habitat (Part 8 of 10)

Part Eight: A Revolutionary New Design

In recent years, many new types of artificial fish habitat and various fish attractor styles have been installed from coast to coast. State agency fish managers and the fisheries industry as a whole, are using them to strategically enhance cover where natural habitat is at a premium. Although becoming very popular, numerous installers have reported some unanticipated problems. Because many current designs are fairly lightweight, they can be easily movable if not heavily weighted with additional materials. Once deployed, some models are prone to tipping over, sliding or being pushed around by wind, current and weather events. Boaters can inadvertently catch them on anchor lines, dragging them far from designated locations. Fisherman with strong braided lines can haul them up with this heavy gear. We’ve even heard reports of fisherman who find the attractors and move them to their own secret “honey holes”. Carefully marked GPS coordinates of where the structures were placed and should still be may be becoming less and less reliable, as installed materials get dragged away from the initial installation site.

Fishiding Habitat has been addressing these concerns throughout their product line, including the introduction of the new patent pending line of products called Fish Habitat Mats. Simply put, they’re immovable, modular, habitat platforms that an array of habitat components can be secured upon/inside in limitless configurations. They can be carried, rolled or slid around quite easily during assembly, but become virtually immobile once on the lake floor. Hundreds of pounds of safe, dense cover can be secured in one secure cluster. The Mats will create extremely large complexes of cover, breaking a size barrier that has been previously limiting. Now, the dimensions and proportions of the habitat complexes can be measured in yards not feet. They can be as large as you want them, creating the kind of genuine fish-holding habitat that up until now has been unimaginable. We finally have a way to create credible artificial rivals to large pieces of coarse woody habitat, sunken timber, dense beds of vegetation and other kinds of habitat that nature ordinarily provides.

Today’s video takes us to the Point View Resort on Missouri’s sprawling Lake of the Ozarks. Fishiding.com recently placed twenty separate Fish Habitat Mats, all outfitted with a variety of their habitat models and various PVC components. The Habitat Mats are designed to provide cover and protection for fish, along with improved angling opportunities for the resort’s fishing guests. The massive complex comprised of dozens of different models of artificial habitat, is believed to be the largest and most sophisticated of its kind ever used in a single location. We have known for years that to create a real fish magnet that’s stable, permanent and holds vast numbers of fish, it needs to be heavy and it needs to be big. The new Habitat Mat system recently placed in Lake of the Ozarks is colossal in scope. It’s a sophisticated fish-friendly habitat framework that was designed to grow aquatic life and make a real footprint on the lake floor, attracting and protecting substantial numbers of fish.

The largest pieces tower from the lake floor some 16 feet creating underwater skyscrapers for fish to use as refuge. In total, the assembled complex weighs over 7,000 pounds and creates over 8,500 square feet of surface area. Other resorts, including the Point View as well as individual homeowners on Lake of the Ozarks, have for decades placed cedar trees or brush piles into the lake attempting to attract fish. Recent flooding and storms washed away virtually all the existing fish habitat that was previously placed at the Point View Resort. The Fishiding Reclaimed Artificial Fish Habitat, incorporated and anchored to the newly installed Fish Habitat Mats, have the kind of permanence and stability that fish managers have been asking for.

Designing and building effective fish habitat is a genuine science. It’s still in its infancy, but we’re learning a great deal every day about the nuances of design and deployment. With today’s deep interest in artificial fish habitat, we’re eager to share our findings with fisheries professionals who want to learn more.

If you’ve missed any part of this series you can catch up at https://www.youtube.com/watch?v=6Krzy…
For more information contact David Ewald at https://www.fishiding.com
Phone: (815) 693-0894
Email: sales@fishiding.com

Artificial Fish Habitat-Underwater Video (part 7 of 10)

Part Seven: The Future of Artificial Fish Habitat

In studying much of the available online literature written about artificial fish habitat, we’ve noticed a curious thing. Often times, the makers of artificial habitat, both the store bought and “homemade” variety, boast about their effectiveness and performance by comparing them to Christmas trees. Using Christmas trees as any kind of bench mark is a straw man argument. Why compare your structures to something that’s widely considered to be one of the least durable and least effective types of fish habitat? Statements like “habitat X outperformed Christmas trees or they held more fish than Christmas trees” are meaningless.

When evaluating artificial fish habitat, we feel that comparisons should be made not to Christmas trees, but to natural elements like 60 foot oak trees or giant white pines that fall in the lakes, huge and gorgeous beds of tall coontail, or bays of dense lily pads and grasses. These are the kinds of fish habitat that truly sustain and provide for current and future fish populations. We all can see how inferior our man made artificial habitat work is, when compared to a full scale, natural habitat. These mega sized and natural objects are the kinds of “real” fish habitat we should all be striving to compete with. Artificial fish habitat should be exceptional or at least really good, not merely good enough. Is the rebuttal simply “Well, we’re just trying to create fish attractors for fisherman, and not really habitat per say”? Creating attractors are a worthy endeavor as well, however, for those interested in creating actual fish habitat, the apparent interchangeability of the two terms often leads to misunderstanding.

Over the course of this series about artificial fish habitat, we’ve shown you a great deal of underwater video of Fishiding habitat in action. This time we’d like to show you something very different. Today’s video illustrates what we need to be striving towards when we’re thinking of future artificial habitat projects. This clip shows how nature provides fish habitat in a vastly superior way than we’ve been able to accomplish so far: This large and majestic pine tree weighing thousands of pounds grew for decades on the shore until it was damaged one night in a thunderstorm. When it crashed into the lake, it began a second life as a home to fish, turtles, waterfowl and dozens of other creatures big and small that would come to utilize it. It’s size and complexity is enormous. The root wad remains on the bank with the top of the tree extending 60 feet from shore over a sharp break line. This created both extensive cover, space underneath and around the tree complex, all habitat that fish could utilize. This is what genuine fish habitat looks like….an authentic Camelot for thousands of fish. Let this be your inspiration the next time you think about what artificial fish habitat could be.

When we compare this single tree to the typical kinds of artificial habitat mankind has come up with so far, our shortcomings are starkly apparent. We have all been thinking much too small. The challenge is not to make something that may function as well as a new Christmas tree, but to have higher aspirations, daring ourselves to design and deploy the kinds of habitat that Mother Nature herself will approve. Nature and all the creatures above and below the waterline are speaking to us, we just need to listen.

Fishiding.com is excited to announce their new line of products for 2019 called Fish Habitat Mats. This modular, fully customizable and self-contained system, could very well change the direction and future of habitat installations as we know them today. Attributes never before seen include gigantic size in all three dimensions, intricate and unlimited complexity, huge underwater footprint and towering vertical height. In the next part of this continuing ten part series, we’ll show you the revolutionary new design that’s recently been placed in Lake of the Ozarks and is already full of fish. This first ever Habitat Mat installation was comprised of dozens of individual habitat structures and is believed to be the largest and most sophisticated of its kind ever used in a single location in a public lake environment.

Designing and building effective fish habitat is a genuine science. It’s still in its infancy, but we’re learning a great deal every day about the nuances of design and deployment. With today’s deep interest in artificial fish habitat, we’re eager to share our findings with fisheries professionals who want to learn more.

If you’ve missed any part of this series you can catch up at https://www.youtube.com/watch?v=6Krzy…
For more information contact David Ewald at https://www.fishiding.com
Phone: (815) 693-0894
Email: sales@fishiding.com

The Science Behind Fishiding Artificial Fish Habitat-Time Lapse Video (Part 6 of 10):

Part Six: How to determine if your habitat is working-

Over the last decade, artificial fish habitat has been placed in hundreds of waters from coast to coast, but astonishingly there has been little evidence provided that they live up to the claims made by their installers. We continue to ask, where are all the pictures, videos or even screenshots from fish finders proving and showing us that they work as well as the advertisements and PR articles claim? Doesn’t the claim of protection for small fish require seeing the small fish inside the habitat being protected? In this series, we felt it was important to provide more than bold assertions and proclamations, and actually show you Fishiding Artificial Fish Habitat models performing underwater. There must be a reason why the industry as a whole hasn’t done the same.

It’s fairly easy to assemble some kind of artificial habitat in the garage, stand back admiringly and declare that it’s awesome and will work, but how do you really know that it will? When we observed our various model prototypes underwater in the field, we were often humbled by how little we really understood the needs and behavior of the fish we were designing the structures for. Because we can never really get into a fishes head and our own intuition about what should work is unreliable, testing is imperative to physically see what the fish prefer.

There’s four ways of trying to determine if your habitat is working. Each has limitations and drawbacks that should be considered. The most popular and least effective way is to fish around the structure. It can be tempting to declare success, if even a single fish is caught around newly placed habitat. Because artificial habitat is often placed in productive fishing spots to begin with, all that can be said is it doesn’t seem to repel fish. Another method is to try marking fish on a fish finder. The information you can collect with this method is also limited. You won’t see if any organic growth has taken place or if small fish or invertebrates have taken up residence. Larger fish may be spooked by the presence of your boat directly overhead and may not be counted. Underwater cameras lowered over the side of your boat will give you a visual idea of what things look like, but the angle of view is so narrow that it’s never really possible to view the habitat in its entirety. You may miss things just above, below or otherwise out of frame. The last and best method of evaluation is by scuba diving. This is the method we use to appraise Fishiding Artificial Fish Habitat. There’s no substitute for being in the water with the habitat and seeing it with your own eyes. It gives you the most complete picture of what’s happening within the habitat and how fish are relating to it.

While we typically film fish underwater by scuba diving, even here, there’s a caveat. We learned quickly that the mere presence of a diver can alter how fish behave. Often fish are attracted to a diver simply out of curiosity. To eliminate the possibility that fish were more interested in our cameraman than the habitat, we needed to film the fish alone to see what they were doing “when nobody was watching them”. That was the inspiration behind setting up cameras to surreptitiously film how fish interact with Fishiding habitat. We also weren’t satisfied with only getting a glimpse of them in a brief period of time, so we set up a time lapse camera.

The following video, although only a minute in length, was filmed over the course of hours of real-time. This approach gave us better insight into the amount of traffic that occurred at a Fishiding Habitat site over a longer period of time. We’ve learned so much by watching the fish and we challenge anyone who works with artificial habitat to do the same. It’s this kind of observation that will expand our knowledge, propel the industry forward and give birth to more effective future designs and applications.

The Science Behind Fishiding Artificial Fish Habitat-Time Lapse Video (Part 6 of 10):

Designing and building effective fish habitat is a genuine science. It’s still in its infancy, but we’re learning a great deal every day about the nuances of design and deployment. With today’s deep interest in artificial fish habitat, we’re eager to share our findings with fisheries professionals who want to learn more. In this continuing series, we’ll show you underwater video of how fish utilize artificial habitat and why so many popular designs are completely ineffective.

If you’ve missed any part of this series you can catch up at https://www.youtube.com/watch?v=6Krzy…
For more information contact David Ewald at https://www.fishiding.com
Phone: (815) 693-0894
Email: sales@fishiding.com

The Science Behind Fishiding Artificial Fish Habitat-Underwater Video (Part 4 of 10)

Part Four: Evaluating Performance-

When we’re testing a new model of Fishiding Artificial habitat in a lake setting, we always let the fish make the basic decisions. No matter how much we may like a structure we design, if the fish don’t respond to it, it’s shelved. We’re not interested in deploying constructions that masquerade as habitat but do nothing in the lakes. If fish reject them, so do we. There’s no guessing involved. All our habitat is literally fish tested and approved.

It can be difficult to determine if fish really like a certain piece of habitat or not. When evaluating the effectiveness of artificial fish habitat, one important metric we use is something we call the allegiance score. In marketing, it’s similar to what advertising people refer to as brand loyalty. Simply put, this means the degree to which adult fish linger in, or hold onto, any particular piece of cover, and how reluctant they are to leave it. This observed behavior is graded subjectively on a scale of zero to five. For example, in the spring, many Centrachids will absolutely refuse to vacate their nesting sites, even when molested. We can say that the allegiance score for the nesting site is 5. Nesting crappies aren’t nearly as immovable in the same situation, so their allegiance score in their own nesting site would be a 3. Catfishes in this same scenario typically score a 4. If we place a piece of habitat in the water and fish swim by it as if it’s invisible, it gets an allegiance score of zero. Basically, we reason that if fish ignore our structures or won’t stage on them, something has failed. We feel that scores of 5 can’t realistically be expected for any fish that’s not protecting fry or eggs. So we’re looking for allegiance scores of 3 or 4.

Today’s video gives you a visual idea of the process described. The video shows a single large bass staging on a group of our bunker complexes. Almost immediately, the fish becomes aware of our cameraman approaching in SCUBA diving gear. The bass has every opportunity at this point to flee but remains with the habitat. The bass is approached more closely to determine her allegiance to the structure. By this point, there is some measure of danger to her, and her body language signals some alarm. As we circle her and explicitly invade her comfort zone she turns and has yet another opportunity and a clear path to flee. However, she retains position close to the habitat even in the face of undetermined threat. It’s almost as if she’s tethered to it. We interpret this behavior as a genuine reluctance to abandon this fish habitat structure. We would therefore assign an allegiance score of 4. This tells us that this model is accepted by the fish and is performing as intended.

The allegiance score is one of the tools we regularly use to determine if our artificial habitat passes the fish test. In case you think that fish will stage on basically any structure, we can assure you this is not the case. We’ve discovered that fish are much more discriminating than we would have ever imagined. In fact, we’ve tested many artificial habitat models that scored a zero on this test and failed miserably in other evaluations we use to determine performance. These duds (if they were made by Fishiding) were all scrapped. While we don’t do the stringent testing the FDA does on pharmaceuticals, we do like to know if our habitats actually work as advertised. We certainly wouldn’t be using any that didn’t perform exceptionally.

Designing and building effective fish habitat is a genuine science. It’s still in its infancy, but we’re learning a great deal every day about the nuances of design and deployment. With today’s deep interest in artificial fish habitat, we’re eager to share our findings with fisheries professionals who want to learn more. We’ve come a long way since the days of throwing discarded Christmas trees into our lakes and calling it a day. Stay tuned. In this continuing series, we’ll show you underwater video of how fish utilize artificial habitat and why so many popular designs are completely ineffective.

The Science Behind Fishiding Artificial Fish Habitat-Underwater Video (Part 4 of 10)

If you’ve missed any part of this series you can catch up at https://www.youtube.com/watch?v=6Krzy…
For more information contact David Ewald at https://www.fishiding.com
Phone: (815) 693-0894
Email: sales@fishiding.com

Inert substrates grow periphyton and larger fish

Effects of addition of tilapia on the abundance of periphyton in freshwater prawn culture ponds with periphyton substrates

MN Hasan, MS Rahman, MF Hosen, MA Bashar

Abstract

An experiment was conducted to evaluate the effect of addition of tilapia on abundance of periphyton in freshwater prawn, Macrobrachium rosenbergii (de Man) in periphyton based culture system for a period of 120 days at Fisheries Field Laboratory Complex, Bangladesh Agricultural University, Mymensingh. A large pond (83×8.9 m) was drained completely and partitioned by galvanized iron sheet into 18 small ponds of 40 m2 each; of which 6 ponds were used for this experiment. The experimental ponds were divided into 2 treatments each with 3 randomly selected ponds. The absence and presence (0 and 0.5 individual m-2) of tilapia (Oreochromis niloticus) were investigated in 40 m2 ponds stocked with 3 prawn juveniles (5±0.05 g) m-2 with added substrates for periphyton development. A locally formulated and prepared feed containing 30% protein was supplied considering the body weight of prawn only. Addition of periphyton substrates significantly reduced the inorganic N-compounds (TAN, NO2-N, and NO3-N) in water column. Forty six genera of periphyton were identified belonging to the Bacillariophyceae (10), Chlorophyceae (21), Cyanophyceae (7), Euglenophyceae (2), Crustacea (1) and Rotifera (5) with significant difference (P<0.05) of phyto-periphyton except Euglenophyceae and without significant difference (P>0.05) of zoo-periphyton between the treatments. The abundance of periphyton biomass in terms of dry matter, ash, ash free dry matter and chlorophyll-a were significantly higher in tilapia-free ponds comparing to tilapia added ponds. Benthic organisms had no significant difference (p>0.05) between the treatments. Addition of tilapia in periphyton-based system benefited the freshwater prawn culture through (i) reducing toxic inorganic nitrogenous compounds in water (ii) reducing demand for supplemental feed (iii) using periphyton as additional natural feed and, (iv)improving survival and production of prawn and tilapia.

DOI: http://dx.doi.org/10.3329/jbau.v10i2.14924

J. Bangladesh Agril. Univ. 10(2): 313-324, 2012 More habitat articles at fishiding.com

Project aims to bring more fish to Smith Mountain Lake

Shallow cover for fry.

Standing on a bank at Smith Mountain Lake, Michael Forte watched as Appalachian Power workers on a barge lowered what looked like a wooden pyramid the size of a small refrigerator into the lake.

Forte, of Franklin County, designed it himself, and now the invention is part of an assortment of habitat devices that will be used to determine how to entice more fish into coves at the lake.

With the help of Internet research, Forte built a similar pyramid habitat and installed it under his boathouse a few years ago. He said it caused a “dramatic difference” in the number of fish swimming in his cove; today, there are dozens and dozens as opposed to very few.

“I just wanted to see if I could attract some fish,” he said. “And it worked.” See the dozens of unique habitat models at fishiding.com

The power company, which uses Smith Mountain and Leesville lakes to produce electricity through a two-reservoir hydroelectric generation dam, hopes to duplicate that kind of success in drawing fish to shallow water areas, said Liz Parcell, a plant manager.

Last week, workers lowered about a dozen similar fish habitat devices in areas shallower than 20 feet in the cove below the Discovery Center at Smith Mountain Lake State Park in Bedford County.

"The Cradle"
“Fine, dense cover for the smallest of fish.

Some of the habitat designs were natural collections of brush and twigs; others were man-made and included cinder blocks, wood pallets and various pipes.

“It’s kind of like a scientific project,” Parcell said.

Some designs resembled objects that might be seen in art galleries, but that will change over time, she said. (possibly the fishiding structures)“They’ll get covered in algae; they won’t look like this for long,” Parcell said. 

The goal is to study what designs work and then share that information with lake homeowners, who in turn could use it to create fish habitats of their own.

Next year, the Virginia Department of Game and Inland Fisheries will send scuba divers near the habitats placed in the water to gauge their effectiveness in drawing more fish, Parcell said.

The work is tied to the 30-year license renewal that the Federal Energy Regulatory Commission granted APCo in 2010, she said. The license, which the commission renewed after years of planning and debate among lake-area stakeholders, calls for a habitat-management plan and improved habitat along the shoreline.

Lake-area residents and landowners will have to obtain permits from the company before installing the habitats, Parcell said. APCo is working to have that process online, she said, and hopes to have it up and running soon.

“Hopefully, no one gets too excited too quickly,” she said.

By: JUSTIN FAULCONER | The News & Advance
LYNCHBURG, Va. —

ASA: Secretaries Salazar, Vilsack And Bryson Come Together To Improve Fish Habitat Nationwide

by Outdoor Hub News

– photo by Mihai Dumitru

The sportfishing industry applauds the Secretaries of Interior, Agriculture and Commerce who signed a Memorandum of Understanding (MOU) to promote interagency collaboration on the implementation of the National Fish Habitat Action Plan (NFHAP), a science-based partnership that seeks to protect, restore and enhance fish habitat on a range-wide scale. The agreement will streamline agency efforts and ensure that federal resources are employed in the most effective and efficient manner possible.

The NFHAP was established in 2006 in response to the declining condition of waterways and fish habitat across the country. Through 18 Fish Habitat Partnerships, federal, state, tribal, local and private interests collaborate to conserve and restore fish habitat. This non-regulatory initiative is the most comprehensive effort ever attempted to voluntarily conserve freshwater, estuarine and marine habitats nationwide.

Bass habitat

“The recreational fishing community is committed to the conservation and improvement of our waterways and it is gratifying to see the Administration strengthen its commitment to the NFHAP as well,” said Gordon Robertson, American Sportfishing Association vice president. “Our aquatic resources play a large role in the quality of our lives. Healthy waterways and robust fish populations are vital to the well-being of our society and sustainable fisheries, providing recreation, clean water, food and more.”

“This is a big step for our federal partners, who see the value of our strategic approach to conserving fish habitat,” said Kelly Hepler, chair of the National Fish Habitat Board who is also with the Alaska Department of Fish and Game. “Our coordination and involvement with federal agencies has really grown since 2006 and I think today marks a significant day in recognizing that.”

“The NFHAP not only conserves our waterways and fishery resources, it fuels a great economic engine,” said Mr. Robertson. “Recreational fishing has a $125 billion impact on our nation’s economy. The economic, social and conservation benefits of recreational fishing would not be possible without the commitment made by programs like NFHAP to ensure our nation’s waterways are clean, healthy and abundant with fish. Over the years, NFHAP has proven that a small federal investment will benefit all Americans and the resources that we depend on for livelihood and leisure.”

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Between 2006 and 2010, the U.S. Fish and Wildlife Service provided $12 million to support 257 on-the-ground conservation projects in 42 states, leveraging $30 million in partner match, to address the priorities of the Fish Habitat Partnerships. This investment in turn creates jobs and provides economic benefits as results of healthier waterways and increased recreational fishing activity. Investment in the NFHAP since 2006 has generated nearly $1 billion in value and supported over 20,000 jobs. That is a return of over $20 for every dollar spent and one job supported by every $2,400 invested.

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“Our next step is to have Members of Congress get on board with this important initiative,” said Mr. Robertson. “The National Fish Habitat Conservation Act (S.1201), introduced by Sen. Lieberman (I-Conn.), will formally authorize and establish a funding source for the NFHAP, providing much needed support for aquatic habitat restoration and conservation across the U.S. Together with the support of the Administration and Congress, we can expand upon the tremendous strides already made by NFHAP in restoring our nation’s waterways.”

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