I am a adept bounded biologist, conservationist, association member, and academy educator, and accept accepted and admired the waters, wildlife and accustomed adorableness of Chautauqua Basin all my life. I batten adjoin the accessible allotment of herbicides at the contempo July 26, 2017 Chautauqua County Legislature Meeting, as did eleven others. In a contempo beat (Sunday July 30), I was quoted out of ambience and my accurate bulletin was abominably lost.
Please let me be clear: I am speaking in activity to the accidental appliance of the herbicides 2,4-D (Navigate) and Endothall (Aquathol K) to Bemus Bay and abroad in Chautauqua Lake.
How do I absolve my position?
¯ Our basin is an old lake, affluent in bulb assortment and affluence of alive things. Its absolute assortment of amphibian plants supports and stabilizes the accustomed communities aural and forth its shores, holds its sediments in abode and provides food, oxygen and analytical abode for endless creatures. All are alloyed calm in an amazing web of interdependency, complication and connection.
¯ The Chautauqua Basin Partnership’s publicized ambition of abbreviation edger and algal mats, “sludge” and bellicose odors by applying herbicides targeting weeds, rather than best algae and blue-green bacteria, will acceptable be abortive and is not an ecologically-sound solution. Dying and corrupt macrophytes debilitated by herbicides will absolution added nutrients into the baptize cavalcade for abounding weeks. Fewer macrophytes beggarly beneath concealment and bargain antagonism for nutrients, which in about-face will enhance, not reduce, algal and cyanobacteria growth. Herbicide analysis will acceptable be counter-productive in acclamation the challenges of chancy algal blooms and their toxins as well.
¯ The contempo appliance of herbicides in Bemus Bay was not in accordance with the advice basic aural the Chautauqua Basin Macrophyte Administering Strategy (MMS). The MMS recognizes that Bemus Bay contains accustomed shorelines, different bulb communities, d angle spawning/rearing areas and several environmentally-sensitive areas breadth herbicide use is restricted. Herbicide appliance is accurately NOT accustomed in d angle breeding and appearance zones above-mentioned to July 1. Abominably and inexplicably, the admittance accustomed both Aquathol K® and Navigate® (2,4-D) to be activated aural a appointed fish-spawning and appearance breadth (Zone 154) in Bemus Bay on June 26th, during the belted aeon back egg breeding and adolescent angle were present.
¯ The MMS specifies that use of 2,4-D (Navigate ®) is not recommended for the administering of abiding macrophytes in Chautauqua Lake, and is not accustomed in any environmentally-sensitive areas. In animosity of this, according to the DEC permit, 2,4-D was activated in four zones in the Bay. Agenda that 2,4-D (active additive in Navigate®) is a systemic, constructed herbicide advised in New York accompaniment alone for actualization amphibian plants, not the assortment of abysmal built-in and non-native macrophytes accepted to abound in Bemus Bay. According to several sources, this herbicide has abstinent astute toxicity, is a abeyant groundwater contaminant, accessible carcinogen and apparent endocrine disruptor/estrogen actor in assertive amphibians and people. 2,4-D has been apparent to abate the amount of adaptation in ducks and waterfowl, is baneful to some angle and causes bloodshed in crayfish, abounding mollusk breed and assertive insects and zooplankton. The added herbicide used, Aquathol K®, is accepted to be baneful to mammals. The artefact labels of both herbicides announce that angle deaths may activity due to suffocation as weeds die, decompose and bankrupt oxygen. The actuality that these herbicides were acceptable by the DEC to be acclimated during angle breeding and appearance season, and in a appointed breeding and appearance zone, is regrettable.
¯ According to its pesticide artefact label, besides targeting the invasive Eurasian milfoil, Aquathol K® kills ecologically-valuable amphibian plants including coontail, built-in pondweeds, Najas, and baptize stargrass. Navigate® (2,4-D) targets milfoil and baptize stargrass, but may additionally appulse white and chicken baptize lilies, elodea, duckweeds and coontail. Abiding toxicities on abounding amphibian beastly breed are unknown, although depending aloft absorption and acknowledgment time, toxicity and bloodshed are adumbrated for zooplankton (Daphnia), amphibia, crustaceans, insects (midges), molluscs and fish. No accepted studies accept been done to analyze the impacts and accessible accessory activity of accumulation 2,4-D and Aquathol K® treatments. Aquathol K is “not acutely toxic” but may, depending on appliance ante and exposure, appulse adaptation of crustacea, assertive angle (bluegill, walleye), babe and dragonflies, assertive molluscs, and zooplankton. Clearly, these herbicides may accept wide-ranging, adverse and alien impacts on our lake’s web of life.
¯ Herbicides are poisons. Just because they are registered with the EPA and acceptable by the DEC, and a certified basin administering aggregation like SOlitude applies them, it doesn’t accomplish them safe. Interactions amid pesticides accept not been studied, nor accept long-term, abiding effects. The Toxicity Word on the Aquathol K® characterization is “Danger,” while that for Navigate® (2,4-D) is “Caution.”
¯ EPA’s www.regulations.gov website and Office of Actinic Safety and Pollution Prevention agenda that Endothall (Aquathol K®) is a abrasive chemical, bark sensitizer, and astute irritant by the astute articulate and ocular routes of administration. Dogs are decidedly acute to endothall toxicity.
¯ 2,4-D is a skin, eye and respiratory irritant that can advance to headache, ing, diarrhea and branch failure. It is a accessible carcinogen (listed by the International Agency for Research on Cancer and associated with a slight added accident for non-Hodgkins lymphoma in aerial acknowledgment populations), abeyant groundwater contaminant, and doubtable endocrine disruptor (www.pesticideinfo.org ). Studies are advancing and the bloom implications are not yet bright (Wisconsin DNR 2,4-D Actuality Sheet).
People, amuse be accurate what you ask for. Because there abide so abounding unknowns about these chemicals, I appetite all those who adulation the basin to amuse use the basic assumption in accommodation making. A greater amount of a acquaintance and activity is critical, not quick-fix, herbicide-based solutions that are acting at best, and may advance to exceptionable bloom and ecological disruption in the continued run.
Rebecca L. Nystrom, Professor of Biology (retired), Affiliate of the Chautauqua Basin and Watershed Administering Alliance Science Advisory Committee, and past-member of the Macrophyte Administering Strategy Technical Review Committee.
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