Get Updates! and Search
No RSS feeds have been linked to this section.

 

 

 

 

 

 

 

 

 

 

Entries in trophy bass (41)

Thursday
May072015

No Surprise: Big Bass Are Lazy

 

While researching the genetic influence of introduced Florida bass on a small fishery in East Texas, scientists noted something unexpected and especially interesting for bass anglers.

Bass seem to grow bigger when they have a small home range and don’t move much.

“We had lots of variability within the bass population,” said Dr. Brian Graeb, a biologist at South Dakota State University and part of the research team for 125-acre Grand Lake at Eagles Nest Preserve east of here. “We began studying why. We started to look at habitat use and movement by putting radio telemetry into 40 bass and did an 18-month study on home ranges of movement.”

As he tracked the bass, Ph.D. student Jason Breeggeman discovered that some areas of the lake were heavily used, while others were not. He also noted a wide variance in how far bass swam.

“The smallest mover had a home range of about 50 yards, and this is what we would normally expect,” Graeb explained. “But we began to see bass the used the entire lake, routinely zipping over a mile to each end of the lake. In 24 hours, one bass swam 1.4 miles and we had one go more than 2 miles.

“These were very unexpected results.”

In trying to figure out why some stayed home and others didn’t, they scanned the bottom of the lake, seeing that much of the woody cover had disintegrated. With remaining habitat limited and occupied, some bass had no choice but to move to find food.

“We determined habitat was the most limiting factor in this lake,” Graeb said. “It was like we had a bunch of marathon runners and we wanted couch potatoes. The bass were skinny by having to swim so far.”

Researchers now have added artificial habitat from Mossback to form “fish cities” throughout the lake and will monitor the results.

“The goal is to try and decrease fish activity, decrease their home range and increase consumption,” the biologist said. “Our target is between 20- and 40-percent coverage of the lake. Currently, we have 22 fish cities and 13-percent habitat coverage with a plan to increase annually. We want to see if too much habitat begins to be too much of a good thing.”

The project began in 2011, with a goal of determining how best to grow a 15-pound bass by maximizing genetic potential and other variables.

“We came up with a strategy for trophy fish management based on age, habitat, nutrition and genetics,” Graeb said. “These are all barriers that must be overcome to grow big fish.”

After learning that genetics were favorable, scientists noted that bass diet consisted of nearly an equal amount of crawfish and forage fish. They also observed that the fish first put on weight quickly, but then leveled off as they aged. Eventually, they saw that some of the fish were fat, while others were skinny, which led to the discovery about movement.

(This article appeared originally in B.A.S.S. Times.)

Wednesday
May062015

Support Research About How to Properly Handle Bass

 We need to know more about how to properly handle bass, especially big bass. The following provides some compelling evidence.

On March 18, Texas Parks & Wildlife (TPW) posted this on its ShareLunker Facebook page:

“Three of this year’s five ShareLunkers have come in with broken jaws.Two have died. The other has been returned to the lake.The only explanation we have for the broken jaws is fish being held vertically by the lower jaw. 

“Broken jaws can kill fish in two ways. An infection can start at the break and invade other organs. Or, the fish may not be able to feed and will starve.”

TPW offers good advice on how to properly handle these trophy fish, but we need to know more about how to properly handle bass of all sizes and then we need to spread the word. If you doubt that, just consider the many photos you see of anglers improperly holding bass horizontally by the lower jaw. Even much smaller fish can be hurt this way.

Want to be part of the solution instead of part of the problem? Don’t hold bass horizontally unless you place one hand under the belly to support its weight. And donate to this important research in Florida.

The main objective is to test whether different handling techniques influence the jaw function of Florida largemouth bass. “We hypothesize that improper handling could influence feeding effectiveness and jaw mechanics, as well as fish survival.”

Your support is needed to fund a scholarship through the Fisheries Conservation Foundation for a graduate student to conduct the experiment in the research lab at the Florida Bass Conservation Center near Webster, Florida. “Your support also will go towards travel expenses to the hatchery for the student and outreach materials so we can communicate our results to the bass angling community.

Monday
Jan262015

Georgia Angler Catches Hall of Fame Bass at Rodman

Georgia angler Dwight Whitmore with 14-1 largemouth that he caught and released at Rodman Reservoir.

As the St. Johns Riverkeeper extorts the city of Jacksonville to help in a campaign to destroy Rodman Reservoir, the 9,000-acre impoundment on the Ocklawaha River continues to confirm its reputation as a world-class bass fishery.

Georgia angler Dwight Whitemore recently caught and released a 14-pound, 1-ounce largemouth there while fishing with guide Sean Rush.

“This lake is truly one of the best bass fishing and wildlife sanctuaries in the world,” said Rush, who added that he loves showing his customers the eagles and other wildlife that live there.

“During a remarkable three-day bass trip with Rush, the visiting Georgia anglers caught-and-released 66 bigmouths, which included two fish each weighing 7 pounds, 10 ounces; an 8-pound, 8-ouncer; and others weighing 9-pounds-2; 9-pounds-12; 10-pounds-10; 11-pounds-9; plus the massive 14-pound-1 behemoth,” reports Bob McNally in The Times-Union.

 “When I got hold of that fish I knew it was a monster, and we started going crazy in the boat,” Rush said. “I told my anglers it would weigh between 12 and 15 pounds, and they just went wild, high-fiving and back slapping. They knew it was a fish most anglers only dream about catching.”

Once boated, the fish immediately was entered in Florida’s TrophyCatch program.

The Florida Fish and Wildlife Conservation Commission reports:

Although not required to verify a Hall of Fame fish (larger than 13 pounds), FWC fisheries biologist Travis Tuten came off holiday leave with his kids to witness the catch, obtain additional measurements and take a fin clip for genetic analyses. They were also able to video the live release of the first Hall of Fame entry for Season 3 of TrophyCatch (visit www.Facebook.com/TrophyCatchFlorida to see the video).

As a Hall of Fame entrant, Whitmore will receive a free replica of his bass, produced by New Wave Taxidermy, $200 in gift cards from TrophyCatch partners like Bass Pro Shops, a Fitzgerald rod and a sweatshirt-sunglasses combo from SpiderWire™. Right now, he also is in contention for the TrophyCatch championship ring that will be awarded by the American Outdoors Fund for the largest verified bass at the end of Season 3 (Oct. 1, 2014 to Sep. 30, 2015).

During their three-day trip, Whitmore also caught and released four additional bass that are eligible for other TrophyCatch awards, and his buddy caught two more.

People can participate in this citizen-science effort and help encourage live release of trophy bass by registering at TrophyCatch. Simply registering makes people eligible for a Phoenix bass boat, powered by Mercury and equipped with a Power-Pole anchoring system and Navionics charting.

Thursday
Jan082015

DNA Research Reveals Trophy Bass Parentage at Guntersville

Contrary to popular belief, Guntersville trophy bass are not pure Florida strain, according to DNA research conducted during the 2014 Bassmaster Classic at that northern Alabama fishery.

From a scientific standpoint, however, that really isn’t surprising. Between 1981 and 1994, an estimated 500,000 Florida bass were released into Guntersville, but few have been added since.

“The population, instead, consists largely of hybrid crosses,” said Dr. Eric Peatman, an associate professor in Auburn University’s School of Fisheries, Aquaculture, and Aquatic Sciences.

Eight-pound-plus fish are 52 percent Florida and 48 percent northern. That’s in keeping with the assessment of Gene Gilliland, B.A.S.S. National Conservation Director, who said that bass with 50 percent or more Florida genes have enhanced trophy potential. “Below that, and it’s no greater than for native fish,” he added.

Peatman and his team also found that the “lakewide average genetic composition” is about 70 percent northern and 30 percent Florida.

“Four to five-pound fish do not vary significantly from the lakewide average in their genetic make-up,” he explained. “However, seven-pound-plus fish show an increase in Florida percentage to 42 percent of their genome.”

These findings suggest that stocking Guntersville with Florida bass has been effective in shifting the genetic baseline of the population and that trophy-size fish are bunched around a rough 50:50 genetic split, said Peatman, adding that more samples are needed to reach definitive conclusions.

“One of the missing components in this analysis is age,” the scientist said, adding that multiple ages likely are represented among those samples of larger bass. “Ultimately, we want to know what is the genetic composition of the largest size fish within each year class, or what mix of Florida and northern alleles produces the fastest growing fish.”

The Alabama Department of Conservation and Natural Resources (ADCNR) will with this aspect during its spring sampling.

“A final component in the mix is obviously habitat,” Peatman said. “The best performing genotype in one reservoir is not necessarily the best genotype in a different reservoir with different environmental parameters. “So we have plans to include different reservoirs and habitats in the analysis in the coming year as well.”

All of this work is part of a statewide project funded by ADCNR to better understand the impacts of the state’s Florida bass stocking program on the quality of its bass fisheries.

“The Classic and other tournaments throughout the year in Alabama represent an excellent opportunity to take non-lethal DNA samples from larger bass brought in by anglers,” Peatman said.

“At the end of the day, the goal is to use these genetic tools to help ALDCNR make proactive stocking and management decisions to ensure the highest quality bass fisheries for our anglers for years to come.”

(This article appeared originally in B.A.S.S. Times.)

Wednesday
Nov262014

Golden Alga Decimates Trophy Bass Fishery in California

One of California’s trophy bass lakes sustained a catastrophic fish kill recently because of a toxic Golden Alga bloom.

George Coniglio, a big bass expert who lives on the Lake Mission Viejo, reports this:

“On Sunday, Nov. 9, the bass, bluegill, shell cracker, and crappie populations at LMV began to die off. The heavy losses continued until Thursday with thousands of fish dying each day.

“On Wednesday, I did a lap around the shoreline of the lake and counted 1448 dead bass ---15 of those bass I estimated were 7 to 11 pounds. Reports from some of the lake employees involved in the cleanup indicate that the majority of the lake’s big bass population is gone. Bill’s count 23 bass over 10 pounds, Adam’s count 10 bass over 10 pounds, Taylor’s count 15 bass over 10 pounds . . .

“Included in the count were two fish between 16 and 17 pounds, five fish in the 15-pound range, six fish around 13 pounds.”

 Coniglio estimates that 90 percent of the bass and sunfish populations now are gone from the 124-acre lake.

 And from Wired2fish, there’s this:

 For 22 years, California big bass legend Joe Everett has been fascinated with chasing a unicorn. That unicorn is a 22-pound, 6-ounce bass that he has seen many times, both in his dreams and on trophy lake of choice, Lake Mission Viejo in California . . .

That dream, however, vanished in the past couple weeks when Mission had a Golden Alga bloom and the lake has since been decimated. The unicorn became a demon and thousands of game fish including very large bass, bluegill and bait fish all died as a result. With their deaths, Joe Everett’s dream died with them. Everett, a one of a kind big bass hunter, has a heart every bit as big as the dream he had about them and the lake he chased them on has had a major setback.

“My dream is over,” Everett said. “The kill has taken everything and now my quest will have to be taken up by someone else, I have even put my boat up for sale that was designed specifically for Mission. It’s over.

“It truly wasn’t about the big bass record as much as the potential of it coming from my little lake. This lake was full of small bass too and that gene pool has been destroyed. Hard to imagine that in one week, the bass all lined up and died from an algae bloom, but they did. I am sure some will survive but based on what I have seen at the lake, it won’t be many.”