Your shopping cart is empty.
Items/Products added to Cart will show here.
- March 2019 (10)
- February 2019 (15)
- January 2019 (29)
- December 2018 (16)
- November 2018 (35)
- October 2018 (40)
- September 2018 (32)
- August 2018 (53)
- July 2018 (35)
- June 2018 (35)
- May 2018 (26)
- April 2018 (17)
- March 2018 (29)
- February 2018 (28)
- January 2018 (28)
- December 2017 (32)
- November 2017 (37)
- October 2017 (39)
- September 2017 (39)
- August 2017 (18)
- July 2017 (20)
- June 2017 (33)
- May 2017 (26)
- April 2017 (37)
- March 2017 (26)
- February 2017 (27)
- January 2017 (17)
- December 2016 (18)
- November 2016 (26)
- October 2016 (8)
- September 2016 (34)
- August 2016 (34)
- July 2016 (24)
- June 2016 (28)
- May 2016 (31)
- April 2016 (47)
- March 2016 (43)
- February 2016 (41)
- January 2016 (21)
- December 2015 (21)
- November 2015 (18)
- October 2015 (28)
- September 2015 (24)
- August 2015 (11)
- July 2015 (15)
- June 2015 (31)
- May 2015 (33)
- April 2015 (36)
- March 2015 (36)
- February 2015 (44)
- January 2015 (25)
- December 2014 (35)
- November 2014 (28)
- October 2014 (32)
- September 2014 (34)
- August 2014 (28)
- July 2014 (13)
- June 2014 (25)
- May 2014 (31)
- April 2014 (28)
- March 2014 (33)
- February 2014 (32)
- January 2014 (20)
- December 2013 (26)
- November 2013 (29)
- October 2013 (35)
- September 2013 (14)
- August 2013 (25)
- July 2013 (7)
- June 2013 (12)
- May 2013 (27)
- April 2013 (14)
- March 2013 (19)
- February 2013 (14)
- January 2013 (13)
- December 2012 (14)
- November 2012 (18)
- October 2012 (18)
- September 2012 (18)
- August 2012 (16)
- July 2012 (18)
- June 2012 (19)
- May 2012 (20)
- April 2012 (22)
- March 2012 (27)
- February 2012 (15)
- January 2012 (3)
Monthly Archives: March 2018
Some of my fondest fishing memories memories have been when I have discovered, on my own, secret fishing spots that nobody knew about – or so it seemed at the time I discovered them.
Many of my “discoveries” were simply luck. or perhaps a case of a few fish getting into a spot they had not inhabited before – or perhaps they had human help. And many of these “discoveries” only lasted a year or two before the new fishery dried up or could not maintain itsef due to lack of spawning success.
But some of my “discoveries” were truly special. When I hiked down Lake Creek, the Diamond Lake outlet, in October of 1971, I was looking for a barrier that kept the brown trout in Lemolo Reservoir from reaching Diamond Lake via Lake Creek which in addition to being Diamond Lake’s outlet is also a major tributary of Lemolo Reservoir. Within a quarter mile of the lake I encountered a couple of brush dams and the remains of a small concrete dam that would greatly hinder upstream migration – but the greatest barrier to upstream migration was a 300 yard stretch of slow-moving, very weedy water that was the most food rich water in the entire stream.
The first few years the fall fishing on Lake Creek for brown trout and brookies was superb along with excellent spring fishing for spawning rainbow trout around Memorial Day.
Over the next 20 years, a series of drought years, a tui chub invasion and the resulting rotenone treatment all combined to make the stream less productive. I no longer fish it, prefering to remember Lake Creek it as it was when I first started fishing it.
Another discovery was a pond along the west side of the railroad tracks about midway between Hauser and where the Trans Pacific Parkway. This shallow pond of slightly more than an acre was absolutely loaded with bass when I first discovered it, but a year later the railroad tore out the beaver dam creating the lake when it became large enough so that the pond almost reached the tracks. When the beavers rebuilt the dam, it no longer had the 80 foot long channel with a hard sand bottom that was necessary to bass spawning success as the pond itself had a soft muck bottom.
The beavers also built a dam creating a pond upriver of the original pond, but too far above the original pond to entrap bass and still remains fishless, except for sticklebacks, to this day.
There are numerous other “discoveries”, but I’m sure you realize how wonderful it feels to discover a special, overlooked spot – and the disappointment that ensues, when for one reason or another, the spot doesnt stay special – or undiscovered.
While private land ownership, and the subsequent postings, have increased over the years, computer mapping software has made exploring easier. My favorite program for doing so is Google Earth Pro – a free application that downloads easily from the internet.
When I am using Google Earth Pro, I am usually looking for small lakes or ponds fairly close to waters that contain fish and have public access. I also look for obviously much wider spots on streams that contain bass or panfish. I also look for barriers that may impact fish movement For example, I found that the best fishing on small central Oregon streams in the late summer and fall was just downstream of beaverdams or other obstructions rather than the actual ponds.
So there you have it – a free software program guaranteed to give you a headstart toward finding you own “secret” spots.
Adding on to last week’s report about several Silverton-area cougar sightings, one cougar was captured and euthanized – about the same time as a cougar entered a downtown motel complex that was under construction in The Dalles. This cougar was trapped in a room, sedated and then euthanized off site. Euthanization is pretty much the only recourse in dealing with wild cougars that have lost their fear of humans.
While The Dalles is not a major metropolitan area, it does have nearly 20,000 residents and this cougar incident may indicate that Oregon’s cities may not be immune from the results of the urban-dominated statewide vote to ban baiting or using hounds to hunt cougars and bears.
The folks at the ODFW office in Charleston were quite helpful in explaining the stocked trout classification sizes. The classification sizes are simply a rough guideline and since indivual trout grow at different rates and hatchery growth rates for a group vary from year to year – especially in trophy or broodstock trout where varying growth rates over a longer time period may result in major size differences within the same group of stocked trout.
This year’s planted legal trout have been running close to ten inches in length – somewhat larger than the early spring plants of the last few years and it appears that the ODFW is starting to place more emphasis on stocking more trophy trout as they tend to be relatively “comorant-proof”.
Although the ODFW usually tries to make the trout plants early in the week, last week they were running late. For example, Mingus Park Pond had not received its scheduled plant by late Thursday afternoon and when I checked back late Saturday afternoon there was no evidence of what was scheduled to be a plant of 2,000 legal rainbows. I thought a main reason for revamping the trout stocking portion of the ODFW website was to provide later, but more accurate information. In the ODFW’s defense, the plant may have been rescheduled because the pond was very full and and the pond’s outflow was overwhelmed with water flowing around the culvert and out into Tenth Street.
The ODFW’s trout-stocking schedule does not list steelhead plants – those plants are usually mentioned in the recreation report for a particular zone – and Butterfield, Saunders and Upper Empire Lake have all received adult steelhead plants within the last two months.
This week’s trout plants include Eel Lake with 2,500 legal trout. The lake is completely accessible, although construction on a collapsed culvert beneath Highway 101 on Clear Creek that connects Hall Lake and Eel Lake might lead some people to think otherwise. The culvert repair is important as many coho salmon and steelhead actually spawn in the culvert. Saunders Lake is also slated to receive 3,000 legal rainbows this week.
Other waters receiving trout plants this week include Lemolo Reservoir which is slated for 2,000 rainbow trout – a nice addition to the numerous brown trout that inhabit the reservoir. A plant of 3,000 rainbows in southeastern Oregon’s Ana Reservoir might wake up the reservoir’s hybrid stripers which have been caught to weights of nearly 20 pounds
Some of the most popular bottomfishing spots will close at the end of this month when the 30 fathom closure takes effect. As of April 1st, conventional bottomfishing in Oregon marine waters deeper than 30 fathoms will be closed for six months – or until October 1st. Bottomfishing in waters less than 180 feet deep will still be legal, as will the jetties and April is one of the very best months for decent-sized lingcod off of Oregon’s jetties.
Bottomfish anglers can still use 30-foot long leader setups after April 1st to fish for mid-depth bottomfish offshore. Check the ODFW website for additional info on legal rigging and fish species that may be retained. Lingcod and greenling are not legal catches, but canary rockfish are. Once again, check the ODFW website for more complete information.
Fishing for chinook salmon in the ocean, open since March 15th, has been very slow with very little fishing pressure. Several spring chinook were caught last week above Scottsburg. Most of the early season springer fishing takes place between Scottsburg and Elkton, but there are almost certainly a few fish as far upriver as Riverforks Park in Roseburg.
According to Jim Carey, of the Rogue Outdoor Store in Gold Beach, the Rogue produced three springers three weeks ago, but since then, the catches have been sporadic with nothing much over 20 pounds yet landed. Hopefully, the best springer fishing is yet to come – onboth the Umpqua and the Rogue.
Surfperch fishing has been fair, but inconsistent, during the recent stormy weather. It’s striped surfperch off the jetties and redtailed and walleyed surfperch off the sandy beaches. Sand shrimp, when available, is a popular bait, but this year many anglers have switched to using pieces of Berkley Gulp sandworms with camo being the most popular color choice.
Although the spring striped bass run on the Sacramento River has just started, It should be at least a month before the same thing happens on Oregon’s Smith and Coquille rivers – hopefully there will be enough fish involved for anglers to actually notice.
Crabbing has been very slow, but there were a few good catches made last week at Half Moon Bay at Winchester Bay and near Charleston in Coos Bay. Stormy, wet weather this week definitely will not allow for any improvement in crabbing success. On a more positive note, the old Coast Guard Pier has been repaired and is open for crabbing, although additional work on the far end of the pier is planned once the materials arrive.
Steelhead fishing on Tenmile Creek in the Spin Reel Park area was much improved last week for finclipped fish.
Pete Heley works parttime at the Stockade Market & Tackle, across from ‘A’ Dock, in Winchester Bay where he is more than happy to swap fishing info with anyone.
A Klickitat County Superior Court judge has sentenced a Columbia River tribal fisherman to four months in jail and fined him $1,050 for illegally selling sturgeon and chinook salmon, concluding a case sparked by a tip to the Washington Department of Fish and Wildlife (WDFW).
Donnell Frank, 46, of Portland, Ore., pleaded guilty to three felony counts of unlawful fish trafficking and was sentenced March 19 by Judge Randall Krog.
WDFW Capt. Paul Golden, who heads the department’s statewide investigative unit, said the case began in the spring of 2015, when officers received a tip that one of Frank’s associates was illegally trafficking fish and wildlife.
WDFW Capt. Jeff Wickersham, who heads the department’s southwest Washington enforcement office, said the investigation revealed that Frank illegally sold two wild chinook salmon and five sturgeon, including one that was less than legal size.
Wickersham said Frank caught all of the fish during tribal subsistence fisheries, when commercial sales were prohibited. He said Frank made multiple sales of up to $500 per transaction during 2015 and 2016, primarily out of the back of his vehicle in Goldendale.
Columbia River fisheries are highly regulated to ensure conservation and resource sharing objectives are met, Wickersham said. Populations of harvestable-size sturgeon between Bonneville and McNary dams the stretch of river where Frank caught the fish have generally declined in recent years, and both hatchery and federally protected salmon and steelhead are present in that area.
“Salmon and sturgeon have significant economic and cultural importance to people and communities throughout the state,” Wickersham said. “Black-market activities like these tend to increase poaching and undermine efforts to recover endangered stocks.”
The current water level on the Potholes reservoir is 1043.92 – slightly down from last week. The water temperature is in the low 40’s on the main Reservoir and approaching 50 degrees back in the sand dunes. The gates have been opened and the Potholes Canal is flowing – filling Soda Lake. This water flow will draw fish to the mouth of the canal where it enters the lake.
We have had a few reports walleye being caught this past week on ½ oz. Blade Baits in 50-55 feet of water. The Largemouth bass fishing is picking up on the Reservoir. Reports
We are also running our Spring Break Special March 23rd thru April 15th. Stay 3 nights -pay for 2!
Call the MarDon Store for the latest fishing info and to make reservations at 509-346-2651.
With spring migration now underway, the Washington Department of Fish and Wildlife (WDFW) asks that people report dead, sick, or injured swans in western Washington to support ongoing efforts to assess the impact of lead poisoning on trumpeter and tundra swans.
People can report their observations 24 hours a day by calling (360) 466-4345, ext. 266 through the end of April. Callers should be prepared to leave a short detailed message including their name and phone number, along with the location and condition of the swans.
Swans die from lead poisoning each year in western Washington after ingesting lead shot while foraging in shallow underwater areas, in fields and roosts where sources of lead are present. Although lead shot has been banned for waterfowl hunting nationwide for more than two decades, the risk to swans remains.
Washington state attracts more than 17,000 trumpeter swans each year, said Kyle Spragens, WDFW waterfowl manager. Most of those birds flock to the fields of Whatcom, Skagit, Snohomish counties, although the species has expanded its range recent years, he said.
Spragens said department has received reports of sick and dead swans in Clallam and Pierce counties just within the past week.
“We strive to respond to every report we receive,” Spragens said. “Our goal is both to help individual swans and to locate sources of lead poisoning.”
Spragens said people who observe dead, sick, or injured swans should avoid handling or collecting the birds. Puget Sound Energy and volunteers from the Northwest Swan Conservation Association assist WDFW with that task, he said.
WDFW and other organizations have been working since 2001 to locate sources of toxic lead.
After the sizable trout plants last week, most area lakes have uncaught planters still in them, but a couple of area lakes will receive their first trout plants of this year – this week. Woahink, a fairly deep lake of nearly 800 acres will receive 1,000 trophy rainbows and within a week, many of these trout will migrate to the three northernmost arms of the lake which will then have a population density sufficient for the trout to be successfully targeted.
Both Upper and Lower Empire Lakes are each slated for 400 trophy rainbows this week. The Empire Lakes total about 55 acres – about the size of Saunders Lake and most of the carryover trout left in these fairly shallow lakes will be in Upper Empire as Lower Empire missed some scheduled plants late last summer due to high water temperatures caused by warm weather and weedy, shallow water.Usually these lakes start receiving trout plants in early to mid-February, but this will be their first trout plant this year.
Mingus Park Pond, only two feet deep and covering two acres should really perk up when it receives 2,000 legal rainbows this week. The small pond’s meager panfish population will have to compete with the trout while the few bass large enough to consume the freshly stocked trout will be following them around hoping to do exactly that, and almost all of this will be visible from the bank surrounding this shallow pond. One can also expect an influx of trout anglers and predatory birds – mostly seagulls and herons.
Also being stocked this week are Bradley Lake (200 trophies) and Powers Pond (3,000 legals and 150 trophies). Johnson Mill Pond, which had the access gate locked last week due to high water, is slated to receive 50 trophy rainbows this week.
Six acre Elbow Lake is slated to receive 1,400 trophy rainbows this week.
Yellow perch have pretty much finished spawning so the chance of encountering truly hefty perch is reduced, but the bite should be more consistent and the fish more scattered – reducing the chance of getting “skunked”. Warmer, more stable weather would help the freshwater bassfishing, which is appears to be one warm and stable weather week away from busting completely loose from the mediocre fishing of the last few weeks.
Winchester Bay’s South Jetty, along with most other jetties along the Oregon coast, have been producing fair fishing for assorted bottomfish and good fishing for lingcod. Bottomfishing in waters deeper than 30 fathoms is scheduled to close at midnight on March 31st – so if you want to get a trip out to the most productive spots – you’ve got two weeks to do it – or wait until October 1st.
The California Department of Fish and Wildlife (CDFW) is reminding sturgeon anglers to return their 2017 Sturgeon Fishing Report Cards as required by law. Although the deadline to report their catch was Jan. 31, 2018, so far about 13,754 – or 31 percent – of the 44,374 report cards have been returned. Sport fishing regulations require that all sturgeon anglers return their report cards, even those who did not encounter sturgeon and who did not fish for white sturgeon.
“Anglers who return their report cards are providing very good data, helping to protect the white sturgeon fishery, and helping to rebuild the populations of white sturgeon and threatened green sturgeon,” said Marty Gingras, CDFW Sturgeon Program Manager. “This is especially important given the years of drought that harmed recent sturgeon reproduction.”
White sturgeon and green sturgeon are anadromous, meaning they move from the ocean or brackish water to spawn in freshwater. Because their populations were reduced by commercial fishing in the 19th century, sturgeon fisheries were mostly closed from 1901 through 1953. Since 1954, recreational fishing for white sturgeon in California has been allowed, and the fishery continues to be restricted in an effort to rebuild it. Green sturgeon is a federally listed threatened species and may not be fished for or harvested.
Anglers can return their overdue report cards by mail to the address printed on the card or – until April 1, 2018 — they can report online at the CDFW website at www.wildlife.ca.gov/licensing/fishing#44521416-harvest-reporting.
If the pathetic rate of tag returns does not improve, California may have to address the problem the way Oregon did for some hunts – by imposing a $25 non-reporting fee when a license is purchased the following year.
Commercial and sport anglers received mixed news last week regarding the status of Sacramento River fall Chinook and Klamath River fall Chinook – California’s two largest Chinook salmon populations. While adult returns of both stocks were well below minimum escapement goals in 2017, and projected abundance for both stocks is modest compared to historic averages, state and federal fishery scientists reported an increase in the number of jacks (two-year-old Chinook) that returned to spawn in 2017. Higher jack returns, as seen in 2017, can indicate the potential for increased abundance of adult (three years old or older) Chinook for 2018 fisheries.
This year’s forecast of Columbia River fall chinook is down more than 50 percent from the 10-year average. While the ocean chinook salmon fishery opened on March 15th – as usual, the season will almost certainly will not have its normal October 31st ending date. In fact, the current season, subject to possible extension, only goes to April 30th – and a major factor in opening it at all was that the early ocean chinook salmon season typically has little fishing pressure. The commercial ocean chinook season will remain closed during the current six week recreational fishery.
Late last week, Silverton, a Marion County city with about 10,000 residents experienced a rash of cougar sightings including one sighting by a property owner of a cougar actually killing a deer on his property. Despite several attempts to track down, trap or even kill what is obviously multiple cougars, authorities have so far been completely, almost spectacularly, unsuccessful. Perhaps it’s time to bring back government “hunters” – or let someone show what a well-trained pack of cougar hounds are capable of.
So far, Oregon remains the only northwest or west coast state without a human fatality due to a wild cougar attack. A few years ago, an animal park employee was killed on the premises at Wildcat Haven in Sherwood while cleaning a cougar enclosure..
Pete Heley works parttime at the Stockade Market & Tackle, across from ‘A’ Dock, in Winchester Bay where he is more than happy to swap fishing info with anyone.
A two-year-old male cougar that travelled all the way into downtown The Dalles and into a hotel complex was euthanized today after wildlife managers determined it was a public safety risk.
At 9:30 a.m. today, City of The Dalles Police responded to an incident at the Oregon Motor Motel downtown after reports of a wild animal within the complex. The animal was in a room under construction down a narrow walkway.
ODFW arrived at the scene at 9:45 a.m. The cougar was secured in a small room and ODFW was able to access the room through a vent in the wall. Staff sedated the animal with drugs administered via dart gun, and then transported the cougar off-site and euthanized it in a safe location.
The cougar had been spotted at this same location on March 18 in the evening, according to a Facebook post seen by ODFW staff.
Cougar sightings are not uncommon in the outskirts of The Dalles, especially this time of year when deer are on winter range just outside the city. “But a cougar coming this far into downtown, into the business district and deep into a hotel complex, and not showing fear of people or wariness of urban environments? That’s just extremely odd,” said Jeremy Thompson, ODFW district wildlife biologist. “This may have been a cougar that was unable to establish its own home range in its natural habitat.”
“Considering this cougar’s concerning behavior, it was deemed a public safety risk not suitable for relocation, and so it was euthanized,” said Thompson.
According to ODFW’s current records, today’s incident marks the sixth time in 2018 that a cougar has been euthanized due to public safety concerns. (A Silverton cougar was euthanized over the weekend.)
Under the state’s cougar management policy and state statutes, specific behaviors indicate that a cougar is a public safety risk. Those behaviors include attempting to break into a residence/structure and showing loss of wariness of humans.
ODFW does not relocate cougars that display these behaviors or cause agricultural damage. Cougars that have shown these behaviors and are relocated are likely to return to where they were causing problems in the first place and repeat the same behaviors, or repeat them in their new habitat. Further, because cougars are territorial, relocating cougars to new habitat can lead to conflict with other already established cougars, resulting in an animal’s injury or death.
Oregon has a healthy cougar population of approximately 6,400 statewide, up from just 200 in the 1960s when they were reclassified as a game mammal and protected in Oregon. Cougars, especially males, are extremely territorial. The need of some cougars to establish a home range could be driving them into urban and suburban areas.
Paddlefish anglers planning to harvest a fish in the Upper Missouri River (From Fort Peck Dam to Fort Benton) will need to apply for an Upper Missouri River Paddlefish Tag. Applications for this drawing can be made by mail, online at fwp.mt.gov, or by stopping by any regional or area FWP offices. Applications must be received no later than 5:00 p.m. on Thursday, March 29, 2018.
For 2018, a total of 1000 tags will be available for the drawing. Successful applicants may harvest a fish anytime during the season, from May 1 through June 15. Those anglers not successful in drawing a harvest tag will be issued a “snag and release” license for the Upper Missouri. Anglers, both resident and nonresident, are required to purchase a fishing and conservation license prior to submitting their applications. Party applications (up to five anglers) are available and encouraged. Notification of results will be available starting the week of April 9.
Additionally, anglers that did not participate in the tag drawing that want to participate in the snag and release fishery can still purchase an Upper Missouri River Paddlefish Snag and Release License at any FWP office starting April 9.
As in the past, anglers may select only one area to fish for paddlefish in Montana: Upper Missouri River (White Harvest Tag-1000 tags available through the drawing), Yellowstone River and Missouri River downstream of Fort Peck Dam (Yellow Harvest Tag-1000 fish quota), and the Fort Peck Dredge Cut archery-only season (Blue Harvest Tag).
Remember that all harvested paddlefish must be immediately tagged and reported within 48 hours. Reporting options include: on-site where fish were harvested (at check points like Intake Fishing Access Site or roving creel staff) or on the phone hotline 1-844-668-5932 or 406-444-5604
What happens to fish that swim in waters tainted by traces of drugs that people take? When it’s an anti-anxiety drug, they become hyper, anti-social and aggressive, a study found. They even get the munchies.
It may sound funny, but it could threaten the fish population and upset the delicate dynamics of the marine environment, scientists say. The findings, published online Thursday in the journal Science, add to the mounting evidence that minuscule amounts of medicines in rivers and streams can alter the biology and behavior of fish and other marine animals.
“I think people are starting to understand that pharmaceuticals are environmental contaminants,” said Dana Kolpin, a researcher for the U.S. Geological Survey who is familiar with the study.
Calling their results alarming, the Swedish researchers who did the study suspect the little drugged fish could become easier targets for bigger fish because they are more likely to venture alone into unfamiliar places.
“We know that in a predator-prey relation, increased boldness and activity combined with decreased sociality … means you’re going to be somebody’s lunch quite soon,” said Gregory Moller, a toxicologist at the University of Idaho and Washington State University. “It removes the natural balance.”
Researchers around the world have been taking a close look at the effects of pharmaceuticals in extremely low concentrations, measured in parts per billion. Such drugs have turned up in waterways in Europe, the U.S. and elsewhere over the past decade.
They come mostly from humans and farm animals; the drugs pass through their bodies in unmetabolized form. These drug traces are then piped to water treatment plants, which are not designed to remove them from the cleaned water that flows back into streams and rivers.
The Associated Press first reported in 2008 that the drinking water of at least 51 million Americans carries low concentrations of many common drugs. The findings were based on questionnaires sent to water utilities, which reported the presence of antibiotics, sedatives, sex hormones and other drugs.
The news reports led to congressional hearings and legislation, more water testing and more public disclosure. To this day, though, there are no mandatory U.S. limits on pharmaceuticals in waterways.
The research team at Sweden’s Umea University used minute concentrations of 2 parts per billion of the anti-anxiety drug oxazepam, similar to concentrations found in real waters. The drug belongs to a widely used class of medicines known as benzodiazepines that includes Valium and Librium.
The team put young wild European perch into an aquarium, exposed them to these highly diluted drugs and then carefully measured feeding, schooling, movement and hiding behavior. They found that drug-exposed fish moved more, fed more aggressively, hid less and tended to school less than unexposed fish. On average, the drugged fish were more than twice as active as the others, researcher Micael Jonsson said. The effects were more pronounced at higher drug concentrations.
“Our first thought is, this is like a person diagnosed with ADHD,” said Jonsson, referring to attention deficit-hyperactivity disorder. “They become asocial and more active than they should be.”
Tomas Brodin, another member of the research team, called the drug’s environmental impact a global problem. “We find these concentrations or close to them all over the world, and it’s quite possible or even probable that these behavioral effects are taking place as we speak,” he said Thursday in Boston at the annual meeting of the American Association for the Advancement of Science.
Most previous research on trace drugs and marine life has focused on biological changes, such as male fish that take on female characteristics. However, a 2009 study found that tiny concentrations of antidepressants made fathead minnows more vulnerable to predators.
It is not clear exactly how long-term drug exposure, beyond the seven days in this study, would affect real fish in real rivers and streams. The Swedish researchers argue that the drug-induced changes could jeopardize populations of this sport and commercial fish, which lives in both fresh and brackish water.
Water toxins specialist Anne McElroy of Stony Brook University in New York agreed: “These lower chronic exposures that may alter things like animals’ mating behavior or its ability to catch food or its ability to avoid being eaten — over time, that could really affect a population.”
Another possibility, the researchers said, is that more aggressive feeding by the perch on zooplankton could reduce the numbers of these tiny creatures. Since zooplankton feed on algae, a drop in their numbers could allow algae to grow unchecked. That, in turn, could choke other marine life.
The Swedish team said it is highly unlikely people would be harmed by eating such drug-exposed fish. Jonsson said a person would have to eat 4 tons of perch to consume the equivalent of a single pill.
Researchers said more work is needed to develop better ways of removing drugs from water at treatment plants. They also said unused drugs should be brought to take-back programs where they exist, instead of being flushed down the toilet. And they called on pharmaceutical companies to work on “greener” drugs that degrade more easily.
The current water level on the Potholes reservoir is 1044.07 – slightly down from last week. The water temperature is in the low 40’s on the main Reservoir with considerably warmer water back in the sand dunes. We have a 10-day forecast showing highs in the mid to upper 50’s – the water will continue to warm, and the fish will become more active very soon!
We have had several reports of both walleye and smallmouth being caught this past week on the Potholes Reservoir as well as trout back in the Seep Lakes and on the Potholes Reservoir. We have heard of several Largemouth being caught towards the dunes as well. The walleye and smallmouth are being caught on ½ oz. Blade Baits. The trout in the Seep Lakes are being caught on Glitter Mallows, Power Bait, and or worms. Not much happening off the MarDon Dock yet – but it will be picking up soon for trout and crappie as the water temp rises. Many of the Seep Lakes on the Wildlife Refuge will be opening April 1st, providing the opportunity for some outstanding trout, bass and panfish fishing. If you don’t have a current fishing license – stop by the MarDon store and pick one up!
Habitat Boxes are being built this week. Our Partners currently have enough materials to assemble 85 new Habitat Boxes. For more information on our project go to www.cwfac.org. If you would like to help improve fishing on the Potholes Reservoir, you may donate money or donate items to be used in one of our event raffles – the Rod Meseberg Walleye Classic, the Northwest Bass two-day bass tournament, or at the MarDon Resort Dock Tournament. The Habitat Boxes help ensure many generations of family fishing for perch, crappie, and bluegills. In turn, these fisheries provide wonderful sport for us, and just as importantly – these panfish fisheries provide a necessary food source for Bass, Walleye, and Trout! We appreciate your support in improving an amazing fishery on the Potholes Reservoir!
The weather is great right now and we are still on our Winter Rate schedule. Come visit us for some good fishing at a great price! We are also running our Spring Break Special March 23rd thru April 15th. Stay 3 nights -pay for 2!
Call the MarDon Store for the latest fishing info and to make reservations at 509-346-2651.