Texas Parks and Wildlife Commission
Conservation Committee
May 30, 2001
Commission Hearing RoomTexas Parks & Wildlife Department Headquarters Complex
4200 Smith School Road
Austin, TX 78744
1
6 BE IT REMEMBERED that heretofore on the 30th day
7 of May of 2001, there came on to be heard matters under
8 the regulatory authority of the Parks and Wildlife
9 Commission of Texas, in the Commission Hearing Room of
10 Texas Parks and Wildlife Headquarters Complex, Austin,
11 Travis County, Texas, beginning at 2:26 p.m., to wit:
12 APPEARANCES:
THE PARKS AND WILDLIFE COMMISSION
13
14 Lee M. Bass, Ft. Worth, Texas, Chairman
John Avila, Jr., Fort Worth, Texas
15 Alvin L. Henry, Houston, Texas
Carol E. Dinkins, Houston, Texas, Vice-Chair
16 Ernest Angelo, Jr., Midland, Texas
Katharine Armstrong Idsal, Dallas, Texas
17 Mark E. Watson, Jr., San Antonio, Texas
Phil Montgomery, III, Dallas, Texas
18 Joseph Fitzsimons, San Antonio, Texas
19 THE PARKS AND WILDLIFE DEPARTMENT:
20 Andrew Sansom, Executive Director
Other personnel of the Parks and Wildlife Department
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23
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25
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1 CONSERVATION COMMITTEE
2 * * * * * * * * * *
3 MAY 30, 2001
4 * * * * * * * * * *
5 2:26 P.M.
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7 CHAIRMAN DINKINS: If you would take your
8 seats, please. We will resume with the Conservation
9 Committee. And Item 1 is a briefing on Chairman's
10 charges. Andy?
11 ITEM 1. BRIEFING - CHAIRMAN'S CHARGES
12 MR. SANSOM: Madame Chairman, I would like
13 to call your attention to the fact that you instructed us
14 in the charges this year to advocate fish and wildlife
15 needs through the S.B. 1 water planning process. That was
16 the previous State omnibus water bill. The Department
17 worked very hard, as you heard this morning, through the
18 session to attempt to ensure that S.B. 2 was positive for
19 fish and wildlife. And I guess what I would say is, the
20 best that can be said about S.B. 2 is that we didn't lose
21 ground.
22 On the other hand, as you saw this morning, the
23 S.B. 2 does call for an interim study on two important
24 issues: No. 1, to assess the instream flow impacts on
25 fish and wildlife; and, No. 2, to assess the issue of
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1 river access. So I think we'll have plenty to work on
2 during this session.
3 You directed us to implement the sea grass
4 conservation plan. And you're about to hear a proposal
5 today about the status of the plan and a minor
6 modification which should make it more effective.
7 And then, finally, you directed us to develop
8 initiatives to address aquatic vegetation, and you will
9 hear a briefing in this sequence on Giant Salvinia, which
10 is probably ultimately the greatest aquatic vegetation
11 threat.
12 Thank you, Madame Chairman.
13 CHAIRMAN DINKINS: Thank you Andy. Any
14 questions or comments? Then we'll move to Item 2, which
15 is a briefing. And this is in connection with an
16 amendment to the Redfish Bay area, and it concerns "Prop
17 Up" zones. And Bill Harvey is going to provide the
18 briefing on this. Bill, welcome.
19 ITEM 2. BRIEFING - AMENDMENT TO REDFISH BAY "PROP UP"
20 ZONES
21 MR. BILL HARVEY: Thank you, Commissioner
22 Dinkins. It's good to see you again.
23 Of course, I'm Bill Harvey from the Resource
24 Protection Division, once again joined by my trusty
25 sidekick, Larry McKinney.
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1 Members, you may recall in June of 2000, the
2 Commission adopted rules, which established the Redfish
3 Bay State Scientific Area. To sort of give you a
4 geographic context -- maybe -- there we go. Redfish Bay
5 is located within the sort of geographic triangle with
6 Rockport, Aransas Pass and Ingleside as the base and the
7 apex of that triangle at Port Aransas. It's one of the
8 prime fishing destinations along the entire Texas Gulf
9 Coast, and it has extensive sea grass resources in the
10 shallow tidal flats there, particularly stands of Manatee
11 grass and turtle grass.
12 This area also has extensive boating access.
13 There are 14 boat ramps in the immediate area. And as a
14 result of both the angling pressure and fishing pressure,
15 parts of Redfish Bay, particularly these shallow tidal
16 flats, have experienced extensive prop scarring in the
17 past.
18 The strategy for management of Redfish Bay and
19 the scientific area was to protect and to conserve those
20 sea grasses and to do that principally through management
21 of boat traffic in and around those sea grass resources.
22 And this includes in Redfish Bay three areas which are
23 called -- which we refer to as voluntary "Prop Up" zones
24 in which we encourage boaters to actually shut down their
25 outboard engines and just drift across these areas or pole
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1 or wade or use a trolling motor to access them.
2 Again, Redfish Bay State Scientific Area has
3 three designated voluntary "Prop Up" zones. The first of
4 these is in Estes Cove; there's one in the Brown & Root
5 flat, and in the area which is the subject of this
6 briefing today, the area we call the Terminal Flat. Each
7 of these has been marked with signs indicating the
8 boundaries of the "Prop Up" zone. And during the process
9 of developing and implementing this management strategy,
10 the staff has continued to work closely with units of
11 government and other interested organizations in
12 fine-tuning these zones. However, we made it clear from
13 the very beginning that we would make no changes to the
14 current strategy before we had an opportunity to formally
15 brief the Commission on any proposed changes.
16 With that, Members, at the request of the
17 Coastal Bend Guides Association, the Sea Grass Task Force
18 considered a request to add an additional running lane in
19 the Terminal Flat area. And this running lane would allow
20 boat traffic to cross this flat at high tide and it would
21 allow a motor-out area -- or a motor-out lane for anglers
22 who are drifting or poling the flat. The Sea Grass Task
23 Force concurred with that recommendation. And field
24 staff, in view of the proposed running lane, found that it
25 would not result in any deterioration of the sea grass
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1 beds there and probably would help us in compliance with
2 the voluntary "Prop Up" zones.
3 Our current plan is to mark this lane with signs
4 which would both indicate the presence of the lane and
5 also provide water-depth indication, indicating when it
6 was appropriate to actually enter the lane and at times
7 when the tide levels were so low that it would not be.
8 Members, this does not require any rule making
9 because this is a voluntary "Prop Up" zone. So, in fact,
10 no rules have to be changed here. But we would certainly
11 entertain any recommendations or any insights into this
12 particular action.
13 And with that, we will certainly entertain any
14 questions you might have.
15 CHAIRMAN DINKINS: Thanks, Bill.
16 MR. BILL HARVEY: Yes, ma'am.
17 CHAIRMAN DINKINS: Comments or questions,
18 suggestions as they solicited?
19 COMMISSIONER FITZSIMONS: I have a
20 question. The task force, Sea Grass Task Force, is that
21 the original group that promoted...
22 DR. LARRY MCKINNEY: It -- it's -- parts of
23 that. We've made some changes since the first one. Some
24 new players have kind of come on the scene, so we've added
25 them on to get a better balance of it -- of that type of
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1 thing. So it's essentially the same one, but with new
2 members; new members on the task force, but it's that same
3 task force group.
4 CHAIRMAN DINKINS: Any other comments or
5 questions? Well, go forth and do good.
6 MR. BILL HARVEY: Thank you.
7 CHAIRMAN DINKINS: Thank you.
8 The next item also is a briefing. And this, as
9 Andy said, is on Giant Salvinia, which is a very critical
10 issue in this state. And Rhandy Helton is our presenter.
11 ITEM 3. BRIEFING - GIANT SALVINIA
12 MR. PHIL DUROCHER: Madame Chairman,
13 Commissioners, before we hear from Mr. Helton, I have a
14 few comments I would like to make about aquatic
15 vegetation.
16 The issues in dealing with aquatic invasive
17 plants are some of the most controversial and contentious
18 issues we have to deal with, particularly in our Division
19 and maybe the whole agency. And the reason they're so
20 controversial is because of the number -- the large number
21 of stakeholders involved in these issues. When we deal
22 with a reservoir or a body of water, first of all we have
23 the river authorities which hold the primary
24 responsibility for managing these waters. And then we
25 have all the anglers. And everybody here has a different
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1 agenda. We have recreational boaters. We have
2 environmental groups. We have homeowners' associations.
3 There's a tremendous number of stakeholders involved in
4 these issues.
5 Now, during the last session, the legislature
6 mandated us to develop a statewide aquatic vegetation
7 management plan. And under the direction of Dr. McKinney,
8 the staff was able to work with many of these stakeholder
9 groups and put together a plan which we think provides
10 balance in dealing with these issues. So I just wanted
11 you to have a little background on why you hear about
12 these issues and why they're so contentious. And with
13 that I'll let Mr. Helton talk about one of the -- the key
14 issues that we're concerned with dealing with now.
15 MR. HELTON: Madame Chairman,
16 Commissioners, my name is Rhandy Helton. I'm with Inland
17 Fisheries Division, and I consider it a privilege today to
18 be able to brief you on Giant Salvinia.
19 Giant Salvinia is a highly invasive aquatic fern
20 from South America with the potential to do serious harm
21 to the fresh water aquatic resources of Texas. This plant
22 is a Federal Noxious Weed, listed as such by the U.S.
23 Department of Agriculture. What that means, it is a
24 violation of the law to import the plant into the United
25 States and then to move it across a state line.
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1 It is also classified in the State of Texas as a
2 prohibited plant, as are all species of the Genus
3 Salvinia. And that makes it against the law to transport
4 or possess the plant. And that's an important factor,
5 because you cannot use the Federal Noxious Weed List to
6 enforce possession. It has to be listed as such by a
7 state. And, fortunately, in our state, you, the
8 Commission, have listed all species of that genus as
9 prohibited plants.
10 Giant Salvinia is an aquatic fern, as I
11 mentioned. It's a floating plant. As a fern, it would
12 ordinarily reproduce by the production of spores. In this
13 case, the plant is what we call pentaploid. Therefore,
14 there's some problems in the process of chromosome
15 pairing. The plant does not produce viable spores. It
16 does produce -- reproduce very well vegetatively by
17 fragments and by buds in the spring with new plant growth.
18 That stem is very narrow, and even the wind can break the
19 plant up into thousands of pieces, and all those pieces
20 can form a new plant.
21 I have before you a picture or a slide of the
22 mature Giant Salvinia. That is also on that handout that
23 was prepared by Texas Parks and Wildlife in the U.S.
24 Geological Survey, a photo in in the upper left-hand
25 corner there. That's how we commonly see the plant in the
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1 wild. The plant has -- it's leaf-shape, it's oblong or
2 ovate. It's one-half inch to one-and-a-half inches
3 across. It's covered with a velcro-like pubescent hair
4 material, which essentially repels moisture and makes it,
5 therefore, very difficult to control with an aquatic
6 herbicide.
7 There's also, on one of those handouts, pictures
8 of the immature plant, which essentially looks quite
9 different. In fact, it resembles a common duck weed,
10 which we find very commonly in the waters of Texas.
11 Fortunately, this photo is not in Texas. This
12 is a shot of an international infestation in the South
13 Pacific Island of New Guinea, the Sepik River, a tropical
14 river system. This infestation started from a few plants
15 and expanded to 96 square miles. I think that's something
16 like a little bit over 60,000 acres. It did that in eight
17 years. The residents of this river system were indigenous
18 people. 80,000 people had to be relocated. Their mode of
19 transportation was with a canoe. They made a living by
20 subsistence fishing. This plant mass developed to a
21 thickness of almost three feet. Basically, it killed that
22 aquatic ecosystem.
23 Now some growth statistics. I just showed you a
24 worse-case scenario of the plant. The Giant Salvinia has
25 the potential to drastically alter the natural nutrient
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1 dynamics of water bodies that it colonizes. And one way
2 that it does that is by a growth -- a rate of growth that
3 really is incomparable with the other invasive aquatics
4 that we're dealing with in the State of Texas.
5 The first two bullets here actually elucidate on
6 the doubling time of the plant. Doubling time is the
7 phrase that's often used to describe plant growth. In the
8 greenhouse, the plant can double its leaf surface in 2.2
9 days. In a lab or sterile culture, it's been shown to do
10 this in 3.4 days. And of more concern to us is what it's
11 done in the wild in a natural system, in this case the
12 immense Kariba Reservoir in Zimbabwe in Africa where
13 research has shown that the plant can double in 8.1 days.
14 Now, the Kariba Reservoir is a very interesting
15 system, because it's always been classified -- never, in
16 its best day, was it a highly fertile system. It's a very
17 low fertility system. And Giant Salvinia does it best
18 growth in high fertility systems, which we have very
19 commonly in the eastern half of Texas.
20 We do not have any data on the exact rate of
21 growth in Texas, but in July of 1999, I was privileged to
22 spend a week with Dr. David Mitchell from Australia, who
23 described Giant Salvinia to science. And so I just asked
24 him, "How fast can we expect this plant to grow in Texas?"
25 And he said, "A week or less." And he looked at our water
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1 bodies and made that assessment.
2 And so that's -- that's a definite cause for
3 concern, because if it grows in a -- doubles in a week's
4 time, that growth will be three times the rate of water
5 hyacinth which we've been dealing with for almost 50 years
6 in the State of Texas.
7 Three critical growth factors for Giant Salvinia
8 are high nutrient levels, especially nitrogen; relatively
9 high water temperatures, the mid-80s are where you see the
10 peak growth, but we see -- we start seeing exceptional
11 growth and intense budding when the water temperature hits
12 70 degrees. So we'll experience 70-degree or better water
13 six to seven months of the year in most of our water
14 bodies. And then high light intensities or lots of
15 sunlight. All three of these factors we have in abundance
16 in the State of Texas.
17 Giant Salvinia is native to southeastern Brazil.
18 It was first established outside of its native range in
19 1939. It is now introduced and established in Australia,
20 Papua, New Guinea, New Zealand, Indonesia, Malaysia,
21 India, several Caribbean Islands, Africa and seven
22 countries there, and now in the United States.
23 The first U.S. record in the wild was in 1995 in
24 South Carolina in a 1.5-acre pond. It was eradicated in
25 that pond with an aquatic herbicide and has not returned.
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1 And then the second record was in the -- the verification
2 that I made in the Houston, Texas area.
3 This map shows you the current distribution of
4 Giant Salvinia in the State of Texas. The red dots on
5 this map are the private water sites. By "private water,"
6 I mean, like a private farm pond. Most of these are in
7 size from .1 acres to about two acres in size. The
8 largest is 118 acres in size, but most of them are under
9 two acres.
10 The blue dots represent public reservoirs. The
11 plant is currently established in four public reservoirs
12 in Texas: Toledo Bend in September, 1998; Lake Conroe in
13 April of last year; Sheldon Reservoir in July of last
14 year, and then Lake Texanana in September of 1999. So
15 we've confirmed the lake -- the plant in a new reservoir
16 each of the years of the infestation. We also have the
17 plant in five streams including the Sabine River below
18 Toledo Bend, down.
19 Fortunately for us, it seems that the actual
20 number of reports that I'm receiving on this plant has
21 definitely slowed down the past year. You know, I want to
22 attribute that to good public education efforts. It's
23 hard for me to believe if a farm pond owner has a one-acre
24 pond covered with this plant that he's not going to be
25 calling someone. And usually they call me and they have
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1 two questions: What is this stuff and what can I do to
2 get rid of it?
3 So I think that our public education efforts
4 have worked good. We've had good support from the media
5 in the State of Texas, especially in the Houston area, to
6 inform the public about the presence of this plant.
7 CHAIRMAN DINKINS: Why is it appearing? Go
8 back to that slide, if you would, please.
9 Why is it appearing on so many private ponds?
10 MR. HELTON: Well, I don't know if I can
11 provide an exact answer to that. There is a market in
12 this country for almost all the prohibited species that we
13 have, so that if there's somebody willing to buy the
14 plant, there's going to be somebody willing to sell it.
15 And we find this plant, as I'll show you on another slide,
16 available in commercial nurseries in the state. We've
17 found it in ten so far. The State of California found it
18 in 65. The State of Louisiana found it in a nursery that
19 had a record of 400 cash sales for Giant Salvinia.
20 COMMISSIONER ANGELO: What's the penalty
21 for selling it?
22 MR. HELTON: The penalty -- the U.S.D.A.
23 penalty for importing the plant into the country for the
24 purpose of monetary gain can go to six figures.
25 COMMISSIONER ANGELO: Have there been any
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1 convictions?
2 MR. HELTON: I really don't know of one.
3 That's not to say that there have not been some.
4 The penalty if you import the plant into the
5 United States for personal use is no less than $1,000. In
6 our state, the penalty for possession is a Class B Texas
7 Parks and Wildlife Code misdemeanor and the fine is $200
8 to $2,000 per plant.
9 COMMISSIONER IDSAL: Why would anybody want
10 to buy it?
11 COMMISSIONER ANGELO: Exactly.
12 MR. HELTON: There's an appeal. It's
13 ornamental, something new. Apparently, there's some kind
14 of competition in plant fanciers to get something new that
15 no one else has, and so they gravitate. This plant is for
16 sale on the Internet.
17 COMMISSIONER IDSAL: For water gardens?
18 MR. HELTON: Right. Yeah. Water gardens.
19 People that build these things in their yards and put
20 plants in them.
21 COMMISSIONER ANGELO: Are we prosecuting
22 when we find it?
23 MR. HELTON: We had a case this past year,
24 not on Giant Salvinia but on another plant, water spinach,
25 in the Houston area. I have been in consultation -- I've
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1 given a lot of presentations before our law enforcement
2 people, because this is a heightened concern to them.
3 The Texas Department of Agriculture has a
4 responsibility to inspect nurseries. Anybody that sells
5 plants, they get inspected once a year. And I've been
6 told that they are increasing their -- their inspection of
7 these nurseries. Most of the inland fisheries personnel
8 are inspecting nurseries in their area and passing out
9 copies of that fact sheet. And most of these people, once
10 they find out what they have, they're saying, "Hey, what
11 do I do to get rid of it?"
12 But most law enforcement, they talk to them the
13 first time; the second time there's going to be penalties.
14 That's what I've been told.
15 MR. PHIL DUROCHER: As I said in my
16 briefing to several of the Commissioners last week, it's
17 one of the big issues we have with these prohibited
18 animals, plants. The way the current system works, we
19 have to put an animal on the prohibited list before it's
20 illegal to bring it into this state. So anything that's
21 not on that list is legal. And by the time -- normally by
22 the time we find out that something has a potential to be
23 harmful, it's too late; it's already here. So the system
24 makes it -- makes it tough to keep up. And the world is
25 so mobile now, people are moving all over the world, and
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1 they're bringing things from all over.
2 Fortunately, most of these plants and animals
3 that come in are harmless. But every now and then we get
4 one that could be extremely harmful.
5 MR. HELTON: I'll just show you a few
6 slides here real quickly of a couple of sites near
7 Houston.
8 This is actually a quarter-acre pond in
9 Montgomery County. This individual actually purchased
10 some plants from a nursery. I'll show you a slide of that
11 nursery shortly. He put a handful in his pond and,
12 according to his testimony, this is what it did to his
13 pond in four weeks' time. We've measured the oxygen level
14 and pH --
15 CHAIRMAN DINKINS: That one's been
16 punished.
17 MR. HELTON: Right. He ended up with more
18 plants than he thought he was bargaining for.
19 This seems to be the case in a small pond. When
20 the plant gets in there, I've yet to find a pond that's
21 partially covered.
22 CHAIRMAN DINKINS: I think I saw that
23 movie.
24 MR. HELTON: Here's another pond, a
25 six-acre pond in Liberty County. Actually, the owner of
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1 this pond had managed this pond for trophy bass.
2 COMMISSIONER AVILA: Oh.
3 CHAIRMAN DINKINS: Good.
4 MR. HELTON: He's a very ingenious-type
5 individual. He cleaned the pond out, but he has not
6 caught any bass since he cleaned it out. Again, low
7 oxygen, low pH near five. The ecosystem basically is
8 destroyed.
9 This is a commercial nursery that I investigated
10 at the suggestion of the first pond owner I mentioned.
11 When I asked him where he got the plants, he said, "Well,
12 go to this nursery in Tomball, walk behind where they sell
13 their plants and see what you find." So I walked back
14 there, and I found water hyacinth, water lettuce, hydrilla
15 and Giant Salvinia all for sale and available to customers
16 in his pond. I let him know what he had, and we went back
17 at a later date and he didn't have them.
18 This is a public water site, Toledo Bend, a boat
19 ramp we found this last year, April 2000. This actually
20 was a private boat ramp that we had missed. And we
21 visited. We saw this.
22 I was back there on another assignment two days
23 later. It was a bass tournament at this boat ramp. There
24 was about 15 boat trailers there. You can see on the
25 runners of his trailer Giant Salvinia there. He'll load
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1 his boat on his trailer; that environment will stay moist;
2 he'll go to another lake and he'll launch his boat and
3 he'll also launch Giant Salvinia and the plant will take
4 off and survive there.
5 COMMISSIONER FITZSIMONS: Is there any
6 procedure for people to clean their --
7 MR. HELTON: We have signs up at all the
8 boat ramps advising the resource users to wash their
9 trailers, clean their trailers. But quite frankly, I've
10 been around a lot of these boat ramps, and I very rarely
11 see a fisherman or a boater inspecting his trailer.
12 Waging war on Giant Salvinia in Texas:
13 Aggressive public education campaign since discovery.
14 That's part of that fact sheet. 80,000 copies of that
15 fact sheet have been produced, published and distributed
16 across Texas and the southeastern U.S. A lot of news
17 releases, a lot of presentations, also.
18 Aquatic herbicide applications have begun on all
19 the -- the public water sites, the reservoirs, all four of
20 them. That's ongoing. We've been spraying on Toledo Bend
21 for two years and, along with the Louisiana Department of
22 Wildlife and Fisheries, have eradicated close to
23 1500 acres on that lake.
24 Biological control releases. Let me make some
25 statements about that with another slide, but that's where
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1 I think our great promise for control of this plant is
2 going to ultimately reside.
3 Physical control. Water level fluctuation is
4 not something we have a whole lot of control over as an
5 agency in Texas, but it happens. And because it happens,
6 as water levels go up and down, this plant likes the back
7 of coves, it likes shorelines. And we're finding a
8 significant portion or a significant biomass of the plant
9 is left up high and dry where it will desiccate and die if
10 it's left out of the water long enough. So I list it
11 here, because environmental method -- one form of an
12 environment method is water level fluctuation. So we've
13 got chemical application, we've got biological control,
14 we've got physical control. We're truly implementing an
15 integrated pest management strategy toward the control and
16 eradiation of this plant species. And an integrated pest
17 management strategy is just the employment of two or more
18 methods at the same time.
19 And then the research ongoing, mainly by Federal
20 agencies, the U.S. Army Corps of Engineers, U.S.
21 Department of Ag. And there's -- well, and Texas Parks
22 and Wildlife, because I'm involved with both of those
23 agencies on some research. Especially a question we want
24 answered is, "How far north is this plant going to go, and
25 what's its cold temperature tolerance?" And we're getting
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1 some interesting information on that, the Corps of
2 Engineers is.
3 Aquatic herbicide application. This is a Parks
4 and Wildlife crew doing their job on Toledo Bend. This is
5 what an area might look like as we're spraying, the back
6 of a cove with woody vegetation on the side and a solid
7 mat of Salvinia. This is where we find the plant in some
8 really tough, almost inaccessible areas, and it requires
9 some specialized equipment to get back there.
10 The biological control that I want to mention
11 briefly on Salvinia is a host-specific weevil. It's
12 called the Salvinia Weevil. By "host-specific", what I
13 mean is that plant research has shown and -- 30 years of
14 research has been shown, primarily conducted by scientists
15 in Australia, that this plant likes -- this insect likes
16 to eat one plant, and that's Giant Salvinia. In fact,
17 studies have shown it would rather starve than eat
18 anything else. And that's important, because if it's
19 imported, which it is in this country at the present time,
20 it's in quarantine, you want to make sure that it eats
21 just one plant. And it has a voracious appetite. The
22 Sepik River infestation that I showed you, that
23 infestation was reduced by 99 percent in 18 months just by
24 this insect. Infestations in India have been reduced 99
25 percent by that insect. The same is true for South Africa
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1 and also the New Guinea site, the Sepik River site.
2 This insect has an excellent track record,
3 unlike some of the other biological control agents that
4 are out there. This insect does very well. Some
5 questions remain, how is it going to handle a temperate
6 climate as opposed to a tropical climate. That's cause
7 for concern. The U.S.D.A. is the lead agency in research
8 on this insect. The insect is in quarantine. What they
9 do is that they take the insect, they starve it for three
10 days and they start feeding it all the things you don't
11 want it to eat. If it ever one time shows a tendency to
12 eat a plant it's not supposed to, it's disqualified. But
13 it's never -- it's never fed on anything else but Giant
14 Salvinia; it's that host specific.
15 What does the future hold? Public education.
16 That needs to continue and it will continue. Informing
17 both the professional and the non-professional public.
18 Actually, we're getting a lot of reports from resource
19 users on Toledo Bend and some of the other lakes about
20 where to go, where the plant is. Aquatic herbicide
21 applications, at least to buy us time until we get the
22 insect released. And then the release of the weevil,
23 which I think will come probably in 2002. I've been told
24 that possibly in the fall of this year, but most likely
25 2002. And we will release in Toledo Bend and now we're
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1 also looking at Lake Texana down near Victoria.
2 We need to monitor the populations of the plant
3 as we have them, and then emphasize early detection
4 efforts. We have not found by our surveys any Salvinia
5 this year on Lake Conroe, and we have not found any of the
6 plant on Sheldon Reservoir.
7 And I think I want to end -- I know a lot of
8 these invasive aquatic plant presentations end up being a
9 gloom-and-doom-type situation. I want to end on an
10 optimistic note. We have not found the plant in Lake
11 Conroe this year. We have not found the plant this spring
12 on Sheldon Reservoir. That's two reservoirs where actions
13 by the agencies involved, Texas Parks and Wildlife, the
14 San Jacinto River Authority, and by their efforts may have
15 eradicated the plant. I want to wait until August or
16 September get here before I say that for sure. But the
17 infestation is not near as serious right now as it was
18 last year at this time on Toledo Bend. We had a hard
19 winter. In December, we had some ice around the
20 shorelines. There are two areas where this plant will not
21 grow. It does not grow where you get consistent ice
22 formation, and it will not grow in a saline environment.
23 So I don't think we have to worry about it in the Gulf of
24 Mexico. But, otherwise, I think -- and I've been thinking
25 where would this plant not grow in Texas? And I don't
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1 know where -- if we have any reservoirs that achieve total
2 ice coverage. Probably not. I think it would be a rare
3 thing.
4 So I want to emphasize early detection efforts.
5 But I'm optimistic, because we've got two lakes where
6 we're not finding it, and we've got an insect that we're
7 going to release that likes to eat it. So, hey, I think
8 we're going a good job and we're showing some results.
9 And we've got a lot of people throughout the country that
10 are calling us, wanting to know, "Hey, what are you guys
11 doing," and we're telling them.
12 That's the end of my presentation. I'll
13 certainly entertain any questions you have at this time.
14 CHAIRMAN DINKINS: Questions?
15 COMMISSIONER IDSAL: I've got a question.
16 Tell me about the herbicides and how that -- how they're
17 applied and how quickly you see results.
18 MR. HELTON: There's three herbicides that
19 we have used on Giant Salvinia. The one that we're using
20 on Toledo Bend is called Diquat. It is a contact
21 herbicide. What that means is it's applied as a foliar
22 spray. As you saw on the airboat slide, the plants that
23 you spray will die. But if you've got a plant with two
24 leaves and you spray the one leaf with Diquat, the other
25 one is still alive.
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1 Another herbicide we're using is Rodeo or
2 Glyphosate. It is a systemic herbicide, which means that
3 it translocates. So that if you spray this leaf, it will
4 move to this one and kill the plant. So there's an
5 advantage to that. The disadvantage to Rodeo is that we
6 do not like to kill non-target vegetation. I mean, if
7 you're going around -- the plants growing in coves where
8 you've got woody plants, if you happen to hit them,
9 they're going to die, too. So we want to focus on the
10 target. Another plant herbicide we're using is called
11 Sonar or Fluridone, and it has worked excellently where
12 you can do a total lake treatment, like a farm pond.
13 We've eradicated the plant with sonar. We had it in three
14 ponds on the old Sheldon Fish Hatchery. We've treated
15 those ponds with Fluridone, and it has not come back. So
16 there's another success story. But we can't do a total
17 lake treatment on Toledo Bend. I don't know how many
18 numbers with how many zeroes after it we would have to pay
19 to buy that amount of herbicide.
20 MR. PHIL DUROCHER: That stuff is
21 expensive.
22 MR. HELTON: It's about $400 an acre for
23 the herbicide.
24 COMMISSIONER ANGELO: How easy is it for it
25 to spread from some of those farm ponds? I would think --
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1 MR. HELTON: The infestation in Texana came
2 from a farm pond that flooded into a creek that ran into
3 Sandy Creek. You know, if you cross Texana on Highway 59,
4 that's Sandy Creek to the north. And it came down the
5 creek. We put up an oil pollution boom at the mouth of
6 the creek to try to keep it out of the reservoir until we
7 could spray up in the Creek. We got high water in
8 November, and it flushed it out into the lake. And I
9 really think that we're looking -- that's probably going
10 to be our most serious problem this year is Lake Texana.
11 COMMISSIONER ANGELO: So what are we doing
12 with the private -- in helping the private landowners or
13 encouraging them to get rid of it?
14 MR. HELTON: The U.S. Fish & Wildlife
15 Service has purchased herbicide and given it to me to use
16 at my discretion. They did not specify how it had to be
17 used. They let me use it where I want it, and they
18 specified they would prefer it be used on private water.
19 COMMISSIONER ANGELO: So what's the status
20 of most of these ponds?
21 MR. HELTON: On most of those ponds it's
22 already been eradicated out of -- some of them we are
23 using in our biological control research.
24 COMMISSIONER IDSAL: Are birds spreading
25 this?
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1 MR. HELTON: That's a good question. I
2 don't have any definitive facts that they are. But when
3 you have a plant that feels like velcro, it could easily
4 attach to the feathers of water fowl. I mean, it only
5 takes a fragment with part of the stem.
6 COMMISSIONER FITZSIMONS: One Great Blue
7 Heron going from here to there.
8 MR. HELTON: One Great Blue Heron, yeah.
9 COMMISSIONER FITZSIMONS: Do you think that
10 the public use of -- how many public lakes have it,
11 infestation? Four?
12 MR. HELTON: Four.
13 COMMISSIONER FITZSIMONS: And you think
14 that's spread from boats going from lake to lake or from
15 water --
16 MR. HELTON: I think the more lakes we get
17 it in, there's more of a likelihood it's going to be
18 spread by boats, boats' trailers. But these lakes, you
19 know, there's usually another lake below that lake, and
20 it's going to go through dams. So the more reservoirs --
21 that's the critical factor. The fly in the ointment, so
22 to speak, is are we going to find it in more reservoirs?
23 I feel good with just the four. But, really, I don't feel
24 good. Toledo Bend, with its sheer size, doesn't make me
25 feel good, but those four --
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1 COMMISSIONER FITZSIMONS: Are those in the
2 same watershed? Are those in the same watershed?
3 MR. PHIL DUROCHER: No, no.
4 MR. HELTON: Toledo Bend is on the Sabine.
5 Conroe is on the San Jacinto. Lavaca Navidad River forms
6 Lake Texana.
7 COMMISSIONER FITZSIMONS: So you're not
8 finding them in the watershed, following down the
9 watershed?
10 MR. PHIL DUROCHER: Not yet.
11 MR. HELTON: Not yet.
12 CHAIRMAN DINKINS: Any other questions?
13 Well, thank you for that excellent briefing, and we expect
14 you to come back next year and tell us it's not a problem.
15 MR. HELTON: Okay. Hope I can do that.
16 MR. SANSOM: Good job, Rhandy. Thank you.
17 CHAIRMAN DINKINS: I believe we have --
18 yeah, that was excellent.
19 We have one additional item, which is nomination
20 for an oil and gas lease in Fayette County. Kathy
21 Boydston is our presenter. Welcome.
22 ITEM 4. ACTION - NOMINATION FOR OIL AND GAS LEASE -
23 FAYETTE COUNTY
24 MS. KATHY BOYDSTON: Madame Chairman,
25 members of the committee, my name is Kathy Boydston,
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1 Program Leader for the Wildlife Habitat Assessment Program
2 in the Wildlife Division. The department received a
3 nomination for an oil and gas lease on the tract known as
4 Monument Hill State Park, Monument Hill/Kreische Brewery
5 in Fayette County.
6 The Department owns 100 percent of the minerals
7 under this 39.54-acre tract. The staff proposes that the
8 Department continues its policy of requiring a minimum
9 bonus bid of $150 per acre and a fixed 25 percent royalty
10 and a $10.00 per acre delay fee rental. And we also
11 propose that the lease be subject to a no-surface
12 occupancy stipulation.
13 CHAIRMAN DINKINS: Thank you. Any
14 questions or comments?
15 COMMISSIONER ANGELO: I move approval -- or
16 no, we don't do that. I'm sorry. Got ahead of myself.
17 CHAIRMAN DINKINS: If there's not any
18 objections, we'll move it to the agenda tomorrow. How
19 would that be?
20 COMMISSIONER ANGELO: That would be great.
21 CHAIRMAN DINKINS: All right. Thank you,
22 Kathy.
23 MS. KATHY BOYDSTON: Thank you.
24 CHAIRMAN DINKINS: That concludes the
25 agenda for the Conservation Committee. Is there any other
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1 business to cover for the Committee? Hearing none, then
2 I'll pass the gavel for the Infrastructure Ad Hoc
3 Committee.
4 (Adjourned at 3:01 p.m.)
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1 STATE OF TEXAS )
2 COUNTY OF TRAVIS)
3 REPORTER'S CERTIFICATION
4 I, Rhonda Howard, Certified Shorthand Reporter in
5 and for the State of Texas, hereby certify that on May 30,
6 2000, I was present at the Texas Parks and Wildlife
7 Commission for committee meetings and that this is a true
8 and complete transcript of the proceedings.
9 I further certify that the proceedings were put
10 into writing by myself with the help of Lori Estrada of
11 the TEXAS PARKS AND WILDLIFE COMMISSION.
12 I further certify that I am neither counsel for,
13 related to, nor employed by any of the parties or
14 attorneys in the action in which this proceeding was
15 taken, and further that I am not financially or otherwise
16 interested in the outcome of the action.
17 Certified to by me, this 28th day of June,
18 2001.
19 _____________________________________
20 ____________________________
RHONDA HOWARD, Texas CSR No. 4136
21 Expiration Date 12/31/02
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