{"content":[{"text":"OBSERVATIONS AND RECOMMENDATIONS (BIENNIAL REPORT) \n 2006","bbox":{"left":0.117647,"top":0.076639,"width":0.580476,"height":0.032562999999999995}},{"text":"not significantly changed since monitoring began. Specifically, the \n chlorophyll-a concentration has fluctuated between approximately \n 3.72 and 11.9 mg/m3, but has not continually increased or \n decreased since 1990. Please refer to Appendix E for a detailed \n statistical analysis explanation and data print-out.","bbox":{"left":0.264704,"top":0.126639,"width":0.612395,"height":0.08150200000000002}},{"text":"While algae are naturally present in all lakes, an excessive or \n increasing amount of any type is not welcomed. In freshwater lakes, \n phosphorus is the nutrient that algae typically depend upon for \n growth in New Hampshire lakes. Algal concentrations may increase \n as nonpoint sources of phosphorus from the watershed increase, or \n as in-lake phosphorus sources increase. Therefore, it is extremely \n important for volunteer monitors to continually educate all watershed \n residents about management practices that can be implemented to \n minimize phosphorus loading to surface waters.","bbox":{"left":0.264705,"top":0.224519,"width":0.6132069999999998,"height":0.14665600000000004}},{"text":"�","bbox":{"left":0.235294,"top":0.404436,"width":0.014252999999999988,"height":0.015386999999999984}},{"text":"Figures 2a and 2b and Tables 3a and 3b: Figure 2a in Appendix A \n shows the historical and current year data for transparency without \n the use of a viewscope and Figure 2b shows the current year data for \n transparency with the use of a viewscope. Table 3a in Appendix B \n lists the maximum, minimum and mean transparency data without \n the use of a viewscope and Table 3b lists the maximum, minimum \n and mean transparency data with the use of a viewscope for each \n sampling season that the lake has been monitored through VLAP.","bbox":{"left":0.264705,"top":0.403841,"width":0.607248,"height":0.130367}},{"text":"Volunteer monitors use the Secchi disk, a 20 cm disk with alternating \n black and white quadrants, to measure how far a person can see into \n the water. Transparency, a measure of water clarity, can be affected \n by the amount of algae and sediment in the water, as well as the \n natural color of the water. The median summer transparency for \n New Hampshire’s lakes and ponds is 3.2 meters.","bbox":{"left":0.264705,"top":0.550586,"width":0.6161639999999999,"height":0.09779000000000004}},{"text":"The current year data (the top graph) show that the non-viewscope in- \n lake transparency decreased from June to July, and then increased \n slightly from July to August. Please note that a May transparency \n reading was not reported since it was very windy and the Secchi disk \n drifted behind the boat which made it difficult to take an accurate \n transparency measurement.","bbox":{"left":0.264705,"top":0.664679,"width":0.6173379999999999,"height":0.09778999999999993}},{"text":"The current year data (the top graph) show that the viewscope in-lake \n transparency on the August sampling event was approximately \n equal to the non-viewscope reading. However, the transparency \n measured with the viewscope is typically greater than the \n transparency measured without the viewscope. As discussed \n previously, a comparison of the transparency readings taken with and \n without the use of a viewscope shows that the viewscope typically","bbox":{"left":0.264707,"top":0.778773,"width":0.616503,"height":0.11415299999999995}},{"text":"III-2","bbox":{"left":0.117647,"top":0.938305,"width":0.03672400000000001,"height":0.016272999999999982}}],"images_bbox":[],"images_bbox_not_text_overlap":[]}