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nearshore area throughout the County. This assessment is to be conducted semi- annually beginning just after project construction , and continuing for three successive years thereafter. In-Water Research Group (IRG) will complete the field and statistical efforts described in this task under subcontract with ATM . The data is to be used to determine seasonal differences in sea turtle abundance in the nearshore environment, as well as differences in sea turtle abundance at differing distances offshore and at different locations within the County . To provide for sufficient data for analysis, two complete surveys, as described below, will be needed each sampling period . The complete project will require seven sampling periods , with two sampling events per period , for a total of 14 countywide sea turtle surveys . Task 5. 1 Field Surveys : Surveys will be conducted along a series of 3-kilometer long transects previously established by Indian River County. Study sites and survey methodology will be in accordance with the Indian River County Sectors 1 &2 Beach Restoration Project Biological Monitoring Plan prepared by Applied Technology and Management (ATM) and Indian River County. Task 5. 2 Data Analysis : Data will be tabulated and transmitted to ATM and Indian River County ( IRC) at the conclusion of each survey effort. At the conclusion of the study, ANOVA or other appropriate statistical treatments will be employed to statistically compare turtle abundances between seasons , sites , and distances offshore . For seasonal comparisons , data from the north , south and central survey zones will be pooled . To analyze differences between the survey zones , data from all observations will be pooled . To analyze differences in turtle abundance at different distances offshore, the sub- contractor (IRG) will pool data from all survey zones and periods . Task 5.3 Report Preparation : Annual summary reports and a final report at the conclusion of the project completely describing the methods , results and conclusions of the survey project shall be provided . Additionally, a summary report of the 2001 nearshore turtle transect work to serve as a pre-construction baseline for the proposed monitoring shall be provided . All reporting and transmittal efforts shall be conducted by IRG and Indian River County . ATM staff shall have no role in review and comment on draft reports, nor in the submittal of said documents to regulatory agencies . It is assumed that the first surveys will be conducted in the spring quarter (April-June) 2003 . Following the initial surveys, surveys will then be conducted in : Fall 2003 (August- September) , Spring 2004 (April-June) , Fall 2004 (August-September) , Spring 2005 (April-June) , Fall 2005 (August-September) , and Spring 2006 (April-June) . C1WINDOWS\TEMPIAmbersand Post-Construction services Contract AmendmeM #6 - Reduced scope 03.12-03.doc 1 1