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snippet: To determine the seasonal distribution of manatees in Brevard County, FL.
summary: To determine the seasonal distribution of manatees in Brevard County, FL.
extent: [[-80.8785816201792,27.7818737621918],[-80.4157339574215,28.7983212830515]]
accessInformation: Flights were flown and data were collected by FWC staff. Data were entered and verified by FWC staff. Use of these data must be credited in any reports or other written publications by the following sentence: "Manatee specific data used in analyses were collected under scientific research permit #MA773494 issued to FWC-FWRI."
thumbnail: thumbnail/thumbnail.png
maxScale: 1.7976931348623157E308
typeKeywords: ["ArcGIS","ArcGIS Server","Data","Map Service","Service"]
description: Aerial distributional surveys are used by marine mammal biologists from FWC and other agencies to determine the seasonal distribution of manatees. Most surveys are conducted from small, four-seat, high-winged airplanes (Cessna 172 or 182) flying at a height of 500-1000 ft at a speed of 70-90 kts. Small helicopters may be used instead of a fixed wing aircraft in urban areas or where waters are particularly opaque and hovering may be required. Flights are usually 4–6 hours long, and are most commonly flown every two weeks for two years. Due to the length of the Brevard County survey, the entire survey was flown over the course of two days, with the second flight always being flown within two days of the first flight; on occasion, the entire survey was completed in one day. The surveys are designed to maximize the manatee counts by concentrating on shallow nearshore waters around the state where manatees and their primary food source, seagrasses, are located. Flight paths curve along parallel to the shoreline, and the airplane circles when manatees are spotted until a count of the number of animals in each group is obtained. Offshore waters are usually not surveyed. Dolphin and sea turtle sights are recorded opportunistically. All aerial data are recorded on paper maps and entered into a GIS shapefile for spatial analysis. GIS is a computer software system for representing data spatially and for conducting spatial analyses. Surveys of Brevard County were flown from September 1997 to September 1999. FWC staff members were observers for these flights. The survey area includes the Atlantic Coast, Intracoastal Waterway and small tributaries of Brevard County.
licenseInfo: Acknowledgement of the FWC-FWRI (Florida Fish and Wildlife Conservation Commission-Fish and Wildlife Research Institute) as the data source would be appreciated in any products developed from these data, and such acknowledgment as is standard for citation and legal practices for data source is expected by users of this data. Please cite the original metadata when using portions of the record to create a similar record of slightly altered data, such as reprojection. If any data are modified or adjusted, please share the edited information with FWC. Users should be aware that comparison with other data sets for the same area from other time periods may be inaccurate due to inconsistencies resulting from changes in mapping conventions, data collection, and computer processes over time. FWC shall not be liable for improper or incorrect use of this data. These data are not legal documents and are not to be used as such.
catalogPath:
title: Brevard County 1997_1999 Manatee Distribution Survey Observations
type: Map Service
url:
tags: ["Marine Mammal Research","St. Johns River Water Management District","Brevard","Florida","biota","marine mammals","research","Florida Fish and Wildlife Research Institute","winter","spring","summer","fall","manatees","Wildlife Research","threatened and endangered (turtles","whales","manatees","sturgeon)"]
culture: en-US
portalUrl:
name: Brevard_County_1997_1999_Manatee_Distribution_Survey_Observations
guid: 2E6F8280-D5C2-4E9E-AEF2-10954B5E723C
minScale: 0
spatialReference: NAD_1983_2011_Florida_GDL_Albers