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Post by Eugene on May 4, 2010 9:43:03 GMT -5
Introductions for biological control are a mixed blessing. Frankly, the efforts I like best are those that make use of native species (years ago, I was fortunate to do some work with largemouth bass and northern pike to control carp in wetlands, e.g.). However, we have the invasion of alewife, an Atlantic herring, to thank for the presence of Pacific salmonids (including steelhead) in the Great Lakes. The latest incarnation of Great Lakes salmon/steelhead stocking programs was initiated as an effort to control alewife in the upper Great Lakes. Regarding Asian carps (and please take no offense, but the term "Asian carp" is a bit of a pet peeve of mine: depending on context, and for no particularly good reason, the term lumps two to four different species as though they were a singular entity), western Lake Erie almost certainly has the most to lose. Check out this recent article by our own Brenda Layman: Invasive Carp Species Threaten Great Lakes.
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Post by Eugene on Apr 28, 2010 8:43:10 GMT -5
Very cool! I've seen loons only occasionally in Ohio during spring and more often fall migrations. Where I've seen them on the water in spring, it has only been on good-size upground reservoirs. I've seen them on Alum Ck. Lk. in the fall. You can differentiate Common Loons from Double-crested Cormorants on the water at fair distance because cormorants hold their bills at a much more upwards angle. The Common Loon's bill looks almost parallel to the water. Their huge trailing feet helps distinguish loons on the wing.
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Post by Eugene on Apr 28, 2010 8:36:04 GMT -5
Absolutely. The purpose/height of the US 23 dam, e.g., is described as "eroding away" in the watershed inventory.
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Post by Eugene on Apr 27, 2010 11:00:37 GMT -5
Considering a little more carefully, it looks like the newspaper article is only addressing the lowhead dams owned by the City of Columbus: six on the Olentangy plus Greenlawn on the Scioto for seven total.
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Hocking
Apr 27, 2010 8:57:54 GMT -5
Post by Eugene on Apr 27, 2010 8:57:54 GMT -5
Nice. It has begun.
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Post by Eugene on Apr 27, 2010 8:57:10 GMT -5
Aye!
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Post by Eugene on Apr 27, 2010 8:52:30 GMT -5
Cool. My constant cross posting in multiple forums regarding our monthly TOSA meetings prompted them to add the "Outdoor Events & Seminars" forum.
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Post by Eugene on Apr 27, 2010 8:43:08 GMT -5
Frankly, other than Greenlawn, I don't know which are equipped with sewage or electrical lines etc. or exactly what additional infrastructure each carries. Somebody within the Friends of the Lower Olentangy Watershed (FLOW) could probably offer detail. The last page of the chapter " Human Impacts on the Lower Olentangy River Watershed" from the The Lower Olentangy Watershed Inventory has a table cataloguing the Olentangy's lowhead dams (they list 12) and the purpose of their construction. Six lowheads are owned by the city of Columbus and two by the city of Delaware. I find it unlikely that any not owned by a municipality would carry any extra municipal plumbing. Unfortunately, any additional infrastructure carried by each dam is not detailed other than in one case (Dodridge) where "Sanitary Sewer Crossing" is specified. It could be taken to imply that most of the dams on the Olentangy itself (especially those built for "beautification") don't carry additional infrastructure. Obviously, Greenlawn is not catalogued by the Olentangy inventory because it is downstream of the Olentangy itself.
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Post by Eugene on Apr 22, 2010 18:17:58 GMT -5
Cool. Thanks for supporting programs I find valuable, smead...and welcome to our little corner of the web.
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Post by Eugene on Apr 22, 2010 18:16:55 GMT -5
That article seems centered on Greenlawn. The 5th Ave. dam is one that doesn't contain "plumbing."
One reason I really like the American Fisheries Society policy statement on dam removal is that it considers the functions served by dams rather than simply calling for their universal removal. That is, dam removal is not considered a viable solution unless "the benefits of dam removal outweigh the costs associated with societal, cultural, environmental, economic, engineering, and technical issues."
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Post by Eugene on Apr 22, 2010 18:11:15 GMT -5
Like it's my job! Lots of busy surrounding invasive species prevention, outreach, and research throughout the weekend, month, and year along with all the other junk I do. Feel free to ask for detail over a tasty pint sometime.
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Post by Eugene on Apr 8, 2010 13:47:08 GMT -5
Greetings All:
The April meeting of The Ohio Smallmouth Alliance will feature ODNR Division of Wildlife Biologist Mr. Ethan Simmons. Ethan is now in charge of the Division's stream monitoring program and will be updating us on the past year's gamefish sample (especially smallmouth bass catches!). The meeting is free and open to the public, and all eager stream anglers should plan to be there!
7:00 pm, Thursday, 15 April 2010 Gander Mountain, 2644 Taylor Rd, Reynoldsburg, OH 43068, (614) 856-0066 ODNR Division of Wildlife Stream Monitoring Program Update with Ethan Simmons, ODNR
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Post by Eugene on Apr 6, 2010 9:46:35 GMT -5
Welcome, huntinmup2, and thanks for the assessment.
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Post by Eugene on Apr 2, 2010 8:31:42 GMT -5
...I'm heading north to bag steelhead this weekend. Wish me luck.
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Post by Eugene on Mar 29, 2010 11:48:28 GMT -5
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