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Offline Brewguy

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How do invasive fish manage to invade??
« on: April 17, 2018, 01:43:03 PM »
I was thinking about flat head catfish.  How do they manage to get past the york haven dam to make their way up to harrisburg.  I know they open the spillway a couple times a year, do the fish really swim up the current? 

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How do invasive fish manage to invade??
« on: April 17, 2018, 01:43:03 PM »

Offline DRY

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Re: How do invasive fish manage to invade??
« Reply #1 on: April 17, 2018, 02:43:32 PM »
I have attached a couple of interesting articles on the flathead catfish and the snakehead fish. The articles describe how and why they initially got into Pennsylvania and other eastern watersheds. Apparently the flathead is native to some parts of the U.S. but the snakehead is not.

https://nas.er.usgs.gov/queries/FactSheet.aspx?SpeciesID=750

http://www.lehighvalleylive.com/sports/index.ssf/2013/09/northern_snakehead_invading_de.html

As far as getting across dams...many dams in PA are low head dams and during times of high water fish can get across the dams even with the current.
A number of dams in PA now have special fish ladders or elevators that help the fish get above the dam. I believe there is one around TMI/Brunners and there is one proposed for the York Haven Dam. They have even talked about a similar fish passage way at the Fabridam in Sunbury.

http://www.pennlive.com/midstate/index.ssf/2015/04/fishway_near_york_haven_dam_to.html

Bill
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Online FM

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Re: How do invasive fish manage to invade??
« Reply #2 on: April 19, 2018, 12:23:03 PM »
People dumping out their snakehead aquarium fish are a big part. I saw a giant goldfish in the Delaware Canal once years ago. People releasing their catches into waters to "improve" the fishing is another. The term is "bait bucket biologists", Guys who think that they know what is better that the professionals. Lake Carey, when I was a kid there, never had smallmouth bass. Years later there is a thriving population of them that I was told were imported from Oneida Lake.
FM

Offline Brewguy

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Re: How do invasive fish manage to invade??
« Reply #3 on: April 19, 2018, 03:22:40 PM »
FM I think there is probably a lot of that and then nature takes care of the rest. 

Dry those were interesting links, thanks. 

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Re: How do invasive fish manage to invade??
« Reply #3 on: April 19, 2018, 03:22:40 PM »

Offline DRY

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Re: How do invasive fish manage to invade??
« Reply #4 on: April 19, 2018, 04:04:26 PM »
...Lake Carey, when I was a kid there, never had smallmouth bass. Years later there is a thriving population of them that I was told were imported from Oneida Lake.
FM

Is Lake Carey open to the public?
Is there boat access?
Is their shore access?

Any other decent smallmouth lakes in northern PA?

Thanks

Bill
« Last Edit: April 19, 2018, 04:06:15 PM by DRY »
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Offline Brewguy

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Re: How do invasive fish manage to invade??
« Reply #5 on: April 19, 2018, 08:18:52 PM »
uh oh, Dry is about to go catch all those captive fish.  lol. 

You're in Sunbury right?  I don't know about the main lake but we have caught small mouth in the spillway of memorial lake at fort Indiantown gap, its about 1.5 hrs from sunbury.
« Last Edit: April 19, 2018, 08:20:23 PM by Brewguy »

Offline DRY

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Re: How do invasive fish manage to invade??
« Reply #6 on: April 20, 2018, 08:08:13 AM »
uh oh, Dry is about to go catch all those captive fish.  lol. 

You're in Sunbury right?  I don't know about the main lake but we have caught small mouth in the spillway of memorial lake at fort Indiantown gap, its about 1.5 hrs from sunbury.

Thanks. I have not fished Memorial myself but have talked to guys who have. Never seemed impressed, especially about it being a smallmouth fishery. This survey supports that belief.

http://www.fish.state.pa.us/images/fisheries/afm/2005/7x05_06memorial.htm

But I'll look into it.
If I leave my paradise here to look for a lake smallmouth fishery I might prefer to go north than south.

Bill
« Last Edit: April 20, 2018, 08:13:03 AM by DRY »
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Offline Brewguy

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Re: How do invasive fish manage to invade??
« Reply #7 on: April 20, 2018, 08:48:43 AM »
That is interesting.  We caught two in a fairly short period of time.  Maybe someone "stocked" them and now they are breeding?  Again this was all down in the spill way.  It is about 8 feet deep and roughly 100 x 100 feet, lots of Pike, Pickerel and Musky in it too. 

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Re: How do invasive fish manage to invade??
« Reply #7 on: April 20, 2018, 08:48:43 AM »

Online icemole

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Re: How do invasive fish manage to invade??
« Reply #8 on: April 21, 2018, 09:57:40 AM »
 Dry...1.5hrs.  South on 61 will get you on Blue Marsh which has a pretty good smallie population.... Come soon or plan a late fall trip as it gets nuts with "others" once it gets nice out....  I'm avialble for guiding....  ;)

 As for the invasives... originally the flatheads were mixed in with channel cat shipments...It took a LONG TIME for the PFBC to admit that. They still refuse to admit that they introduced the white perch while they were on their hybrid/alewife stocking binge in the mid 90's(also mixed with the hybrids).  Even though most of the lakes that had W/P explosions were all stocked with hybrids. As for the snakeheads yes many are "pets" that were released before they were banned from import. You could also buy them live in Chinese markets. the Chinese believe - A) in fresh food + B) that snakeheads had medicinal qualities, however if you got better before your snakehead meal it is "good luck" to release the fish.

 I'm sure there has been some "bucket biology" going on as well as unintentional transfer on our waders/boats. I'm also pretty sure that waterfowl and wading birds share some of the blame too.

Offline DRY

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Re: How do invasive fish manage to invade??
« Reply #9 on: April 21, 2018, 10:17:29 AM »
Fished Blue Marsh once after an EPFR picnic many years ago
Much too big...would take a lifetime to figure it out
And you’re right about the summer “crazies”

There are many smaller state lakes that could be
Managed for both smallmouth and walleye with the right
Management...but that will never happen with the current emphasis
On salmonoids

Welcome to the site!!

Bill
The hours spent fishing are not subtracted from the lives of men!!

Online icemole

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Re: How do invasive fish manage to invade??
« Reply #10 on: April 21, 2018, 11:19:49 AM »
 That must have been before I joined over there... I would have brought my map(with X's) along for you to use...  LOL.  I live 15 minutes away I fished it alot from the 80's till 2012 when I sold my boat...

Online FM

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Re: How do invasive fish manage to invade??
« Reply #11 on: April 22, 2018, 10:25:38 AM »
Lake Carey is 95% private shoreline with a tiny marina that allows boat launching for $8 bucks or there abouts. It is divided by a causeway the bigger section being the go to part for the best fishing. Rocky shores and depths approaching 30 fow make it a pretty good habitat for bass and walleyes too. The other choices up here for good smallies are Harveys Lake and lake Wallenpaupack but the warning about summer crazies applies X2 . The fish in the pics were caught by a PA fishers member at Harveys.






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Re: How do invasive fish manage to invade??
« Reply #11 on: April 22, 2018, 10:25:38 AM »

Offline DRY

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Re: How do invasive fish manage to invade??
« Reply #12 on: April 22, 2018, 11:59:53 AM »
Lake Carey is 95% private shoreline with a tiny marina that allows boat launching for $8 bucks or there abouts. ...

Thanks FM.......

Bill
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Offline dretallack

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Re: How do invasive fish manage to invade??
« Reply #13 on: April 22, 2018, 02:44:53 PM »
Just out of curiosity, at the small marina. Do they have boat rentals? That may be a fun fall destination.

Online FM

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Re: How do invasive fish manage to invade??
« Reply #14 on: April 23, 2018, 05:41:34 PM »
Fifty years ago I used to have a country kid's job bailing out about 30 old wooden boats that were for rent. Times have changed and the old boats only survive in my memory. There is some limited  shoreline fishing along the causeway.
FM

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Re: How do invasive fish manage to invade??
« Reply #14 on: April 23, 2018, 05:41:34 PM »

 

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