Lake and Pond Management Guidebook - Chapter 4 pps

... information and pur- chase of these products is Aquatic Eco-Systems, Inc. (1767 Benbow Court, Apopka, FL 32703; Tel: 87 7-3 4 7 -4 788; fax: 40 7-8 8 6-6 787; www.aquaticeco.com). 4. 4 KEEP FISH THRIVING 4. 4.1 ... system has a 4- , 6-, or 8-inch pump that usually runs off a 5- to 30-horsepower electric motor. Gasoline-powered pumps can also be used. An intake line is plac...

Ngày tải lên: 11/08/2014, 10:22

... Winterkill 4. 4 .4. 1 Reduce Phosphorus 4. 4 .4. 2 Snowplowing Lakes 4. 4 .4. 3 Winter Aeration 4. 4 .4. 3.1 Diffusion or Bubbler Aerators 4. 4 .4. 3.2 Pump and Baffle Aerators 4. 4 .4. 4 Dredge Deeper Holes 4. 5 Reduce ... Restrictions and Bag Limits 4. 4.3 Preventing Disease 4. 4.3.1 Black Spot 4. 4.3.2 Yellow Grub 4. 4.3.3 Fish Tapeworm 4. 4.3 .4 Fungus 4. 4.3.5 Protozoa...

Ngày tải lên: 11/08/2014, 10:22

... solar-powered unit can aerate up to a 5-acre pond. For larger ponds or lakes, additional units can be added. Aerating a 2-acre pond by solar power will cost about $46 00, while a 3-acre pond ... source for solar-powered aerators is Keeton Indus- tries (300 Lincoln Court, Suite H, Fort Collins, CO 805 24; 97 0 -4 9 3 -4 831; www.keetonaqua.com/). 2 .4. 3 WIND-POWERED AERATORS Like s...

Ngày tải lên: 11/08/2014, 10:22

... Memphis Net and Twine Company ( 248 1 Matthews Ave., Memphis, TN 38108; Tel: 80 0-2 3 8-6 380; www.memphisnet.net), or the H. Chris - tiansen Co. (49 67 Arnold Road, Duluth, MN 55803; Tel: 21 8-7 2 4- 5 509; ... wind-blown floating aquatic weeds. A 200-foot-long net should be large enough to encircle small working areas. Another approach is to link together 2- × 4- inch...

Ngày tải lên: 11/08/2014, 10:22

... information, call D and D Products Inc., Aquarius Systems (P.O. Box 215, North Prairie, WI 53153; Tel: 41 4- 39 2-2 162 or 80 0-3 2 8-6 555; ww w.aquarius-systems.com). A semi-amphibious front-end loader ... away the dredge spoils. © 2003 CRC Press LLC 392 84; Tel: 80 0-6 4 7-5 368; e-mail fsi@forestry-suppli- ers.com; www.forestry-suppliers.com). 5.5 .4 DUMP TRUCK FILTR...

Ngày tải lên: 11/08/2014, 10:22

... (Figure 4. 4).Additionally, the assumption that © 2008 by Taylor & Francis Group, LLC 74 Wildlife Science: Linking Ecological Theory and Management Applications 0 200 40 0 600 800 1000 1200 140 0 ... 2200 Nearest neighbor distance in meters 0 20 40 60 80 100 120 140 160 180 200 Number of observations FIGURE 4. 4 Evidence for annual variation in random and nonrandom distribu...

Ngày tải lên: 12/08/2014, 02:20

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Ngày tải lên: 02/07/2014, 04:20

... between log-normal and normal distribution and para- metric monitoring data. 4. 1 DEFINITIONS In statistical analysis and relevance, certain standard definitions are used. The follow- ing standard ... million at 25°C and 760 mmHg. This result is to be compared with the PEL with- out adjustment for temperature and pressure at the sampling site. ppm(NTP) ϭ mg/m 3 ( 24. 45)/(Mwt) wher...

Ngày tải lên: 11/08/2014, 06:22

... Introduction 71 4. 2 Methods 73 4. 2.1 Study Area 73 4. 2.2 Field Methods 74 4.2.3 Suspended Sediment Measurements 74 4.2 .4 Settling Chamber Measurements 77 4. 2.5 Infiltration Gravel Bags 78 4. 2.6 Visual ... by CRC Press “L1615_C0 04 — 20 04/ 11/19 — 02 :47 — page 94 — # 24 Copyright 2005 by CRC Press “L1615_C0 04 — 20 04/ 11/19 — 02 :47 — page 79 — #9 Composite Nature of Suspende...

Ngày tải lên: 11/08/2014, 17:20

... three-dimensional method-of-characteristics solute-transport model (MOC3D); U.S.G.S. Water-Resources Investigations Report 9 6 -4 267, 87 p., 1996. McDonald, M.G. and Harbaugh, A.W., A modular three-dimensional ... University, 44 5 p., 1995. © 20 04 by CRC Press LLC Coastal Aquifer Management 78 Figure 1: (a) Map of The Netherlands: position of the island of Texel and grou...

Ngày tải lên: 11/08/2014, 13:21