Consultant's Report - Minnesota State Legislature

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Dioecious Dreissenids Efficacy Epifaunal Epilimnion Euphotic Zone Eutrophic Lakes Excurrent Siphon Exotic MINNESOTA DEPARTMENT OF NATURAL RESOURCES Feasibility Study to Limit the Spread ofZebra Mussels from Ossawinnamakee Lake Having the male and female organs in separate and distinct individuals. A group ofmussels belonging to the family Dreissenidae. A capacity for producing a desired results or effect. Living on top ofor attached to animals. In thermally stratified lakes, the warmer, lighter (less dense) upper layer of water. The portion ofa lake receiving sufficient light for photosynthesis to occur. Lakes with an abundant accumulation of nutrients that support a dense growth of algae and other organisms, the decay of which depletes the deeper water ofoxygen in the summer. The upper tube-like extension on the posterior end of bivalves through which water exits. Foreign. Not native. Introduced. External fertilization Fertilization ofeggs outside the female, as in the water. Fecundity Gametes Gametogenesis Hypolimnion Incurrent siphon Infaunal Juvenile Lacustrine Larvae LCso, LC100 The number ofeggs produced. Ripe eggs and sperm. The maturation ofgonads with development ofmature gametes. In thermally stratified lakes, the colder, denser water on the bottom ofthe lake. The lower tube-like extension at the posterior end ofthe bivalves through which water enters the mantle cavity. Animals living in the sediments, such as burrowers. The settles stage in which the gonads are not yet visible. Refers to standing waterbodies such as lakes and reservoirs. A term collectively referring to any prejuvenile stage. Lethal concentration for 50 and 100 percent of the test orgamsm, respectively. Appendix H-2 GLOSSARY OF TERMS
MINNESOTA DEPARTMENT OF NATURAL RESOURCES Feasibility Study to Limit the Spread ofZebra Mussels from Ossawinnamakee Lake Lentic Refers to standing waters. Life cycle The history of developmental changes undergone by an organism fro inception to death. Lotic Refers to running offlowing waters. LTso, LTlOO Time to 50 and 100 percent mortality, respectively. Macrophytes Plants visible to the naked eye. Metalimnion In thermally stratified lakes, the zone of rapidly changing temperature between the epilimnion and the hypolimnion, the temperature gradient being the thermocline. mg/l Milligrams per liter. Unit of chemical concentration. Same as parts per million (ppm). Molluscicide A biocide developed specifically for destroying mollusks. Mollusk An animal with a calcareous shell. In freshwater includes bivalves and snails. Monoecious Having the male and female organs in the same individual. Morphometry Refers to the shape ofthe underwater basin. Mussel Any bivalve mollusk that produces a byssus, includes families Mytelidae (e.g., blue mussels and marine bivalves) and Dreissenidae (marine, brackish, and freshwater bivalves), and also includes Unionidae (freshwater bivalves), which do not produce byssus in adult life. Oligotrophic lakes Lakes with low levels ofnutrients that support few algae and there is little organic matter to consume oxygen so levels of dissolved oxygen in deeper water are high. o and M Costs Operation and maintenance costs are the ongoing, repetitive costs of operating a treatment system; for example, man-hours (salaries, wages, and benefits) and costs for treatment chemicals and periodic equipment repairs. Pediveliger The stage of larval development of dreissenids immediately following the appearance ofthe foot. Appendix H-3 GLOSSARY OF TERMS
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List ofTables MINNESOTA DEPARTMENT
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I. Introduction Purpose MINNESOTA D
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Feasibility Study To Limit the Spre
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MINNESOTA DEPARTMENT OF NATURAL RES
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Hydrological Characteristics MINNES
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Outlet Structure MINNESOTA DEPARTME
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lBhsl Nllrtq Osso'winnomakee Pelica
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Age and Growth MINNESOTA DEPARTMENT
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Works Cited MINNESOTA DEPARTMENT OF
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Table V-1. Methods Available for Co
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Cavitation MINNESOTA DEPARTMENT OF
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Potassium Salts MINNESOTA DEPARTMEN
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Works Cited MINNESOTA DEPARTMENT OF
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Combined Treatments MINNESOTA DEPAR
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Feasibility Study To Limit the Spre
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METHOD OF INVESTIGATION MINNESOTA D
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VII-B. Treatment Alternatives Expan
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Message Page 3 of4 3/21/2005 best.
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enougl1 to eV8Juatc £1'
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I \ I iV!1';UJIOOiS for Estimaling
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FishPro Consulting Engineers and Sc
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./}' 03/16/2005 14:40 FAX 217585189
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Page 157: FINAL REPORT OF THE EFFECTS OF CUTR
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Page 180 and 181: In contrast, fall sampling revealed
Page 184 and 185: Lake Ossawinnamakee and Pelican Bro
Page 186 and 187: VII-F. Meeting Summaries
Page 188 and 189: Rich Rezanka would like us to refer
Page 190 and 191: VII-G. List of Abbreviations Used
Page 192: VII-H. Glossary of Terms
Page 197: Secchi disc MINNESOTA DEPARTMENT OF
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Consultant's Report - Minnesota State Legislature

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