Wetland and Aquatic Research Center

Manatees

WARC's Sirenia Project conducts long-term detailed studies on the life history, population dynamics, and ecological requirements of the West Indian manatee. Sirenia Project biologists work cooperatively with federal and state researchers and managers on research identified as essential for the recovery of the species.
Filter Total Items: 13
Date published: April 4, 2019
Status: Active

Health Effects and Behavioral Response of Florida Manatees (Trichechus manatus latirostris) to Persistent Algal Bloom and Associated Loss of Seagrass Resources in Brevard County, Florida

USGS researchers are working with partners to assess the health and foraging behavior of Florida manatees in the northern Indian River Lagoon and Banana River, areas that have experienced declining seagrasses due to an extended phytoplankton bloom. 

Date published: March 26, 2019
Status: Active

Population Ecology of Florida Manatees

USGS is working with partners to understand how the federally protected Florida manatee population changes over time and responds to threats.

Date published: March 5, 2019
Status: Active

Quantitative Framework to Model Risk of Collisions between Marine Wildlife and Boats

Collisons between wildlife and vehicles threaten many species, and can lead to human loss of life, injuries, and loss of property. USGS is developing models to help evaluate the effectiveness of wildlife protection zones and optimize the design of these protected areas. 

Date published: October 21, 2016

Demographic and Population Models to Assess Recovery and Status of the Endangered Florida Manatee

Population models developed by USGS are the primary decision-support tools used for status assessments, and rely on estimates of adult survival and reproduction rates from mark-recapture studies.

Date published: October 16, 2016

Modeling Past Variation in Florida Manatee Survival, Breeding, and Movements Rates to Establish Baselines for Aquatic Ecosystem and Restoration Research

Long-term monitoring data in the Manatee Individual Photo-identification System (MIPS), developed and coordinated by WARC-Sirenia Project in collaboration with Florida’s Fish and Wildlife Research Institute and Mote Marine Laboratory, are the basis for modeling manatee demography rates.

Date published: October 14, 2016
Status: Active

West Indian Manatee Population Genetics

Nuclear microsatellite markers have been developed and implemented on ~2,000 West Indian manatees. These markers provide individual genetic fingerprints for mark-recapture studies, population structure information for the conservation of unique or isolated populations, and pedigree and relatedness information for addressing inbreeding and breeding structure patterns.

Date published: October 12, 2016
Status: Active

Manatee Health Assessment and Biomedical Studies

A multi-agency effort assesses the health of manatees and provides baseline information on their health, reproductive status, and nutritional condition.

Date published: October 10, 2016
Status: Active

Manatee Photo ID as a Tool for Research: The Manatee Individual Photo-Identification System (MIPS)

Since 1978, USGS scientists have photo-documented manatees in the Southeast United States. Now, more than 3,000 manatees can be found in the MIPS database.

Date published: October 5, 2016
Status: Active

Structured Decision Making for Management of Warm-Water Habitat of Manatees

Manatees are tropical to subtropical in distribution and, with few exceptions, Florida is the northern limit of their natural winter range.  The availability of warm-water habitat during winter is critical for the future persistence of the population in Florida.

Date published: October 3, 2016
Status: Active

Manatee Distribution and Habitat Use in the Northern Gulf of Mexico

USGS works with partners to assess manatee distribution and habitat use throughout the Northern Gulf of Mexico.

Date published: August 1, 2016
Status: Active

Monitoring and Assessing Effects of the Picayune Strand Restoration Project (PSRP) on the Florida Manatee

Critical information predicting condition changes in manatee habitat resulting from the alteration of freshwater flows to estuaries is needed to develop the PSRP Detailed Design and PSRP Operations Plan components and complete consultation under the Endangered Species Act.

Date published: August 1, 2016
Status: Active

Seagrass Beds and Manatee Foraging Areas in the Ten Thousand Islands: Mapping and Characterizing by Incorporating Manatee GPS Tracking Data and Habitat Information

Turbid water conditions make the delineation and characterization of benthic habitats difficult by traditional in situ and remote sensing methods. Consequently, only a small fraction of this valuable resource has been mapped or characterized.