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6/19/2009 Jacksonville University 1 Duval County Manatee Research Project

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6/19/2009 Jacksonville University 1

Duval County Manatee Research Project

6/19/2009 Jacksonville University 2

Funded: City Of Jacksonville

Jacksonville Electric Authority

Jacksonville Port Authority

Developed:

Jacksonville Waterways Commission

Research:

Jacksonville University

Duval County Manatee Research Project

6/19/2009 Jacksonville University 3

Classification of Sirenians

Order: Sirenia (manatees & dugongs)Family: Trichechidae (manatees)

Genus species/subspecies:Trichechus manatus - West IndianTrichechus manatus latirostris - FloridaTrichechus manatus manatus - Antillean

Trichechus inunguis – AmazonianTrichechus senegalensis – West African

6/19/2009 Jacksonville University 4

Classification of Sirenians

Order: Sirenia (manatees & dugongs)Family: Dugongidae (dugongs & sea cow)

Genus species:Dugong dugon – (dugong)Hydrodamalis gigas (extinct Steller’s sea cow)

6/19/2009 Jacksonville University 5

Research Project Components

Manatee aerial surveysSubmerged Aquatic Vegetation (SAV)Water quality monitoringMarina surveysVessel traffic studiesPower plant surveysManatee protectionManatee education and awareness

6/19/2009 Jacksonville University 6

Manatee Aerial Surveys

BimonthlyCessna 172 high wing aircraft500 – 1000 ft altitudeICW and SJR flight paths

6/19/2009 Jacksonville University 7

6/19/2009 Jacksonville University 8

Submerged Aquatic Vegetation (SAV)

FreshwaterTape grass - Vallisenaria americanaHyacinth - Eichornia sp.Algae - Hydrilla sp.

MarineTurtle grass – Thalassia sp.Manatee grass – Syringodium sp.Shoal grass – Haladule sp.

6/19/2009 Jacksonville University 9

Submerged Aquatic Vegetation (SAV)

DeliniationMapping

6/19/2009 Jacksonville University 10

Water Quality Monitoring

Weekly at JU dockWater temperature – STC meter / Tid bitsSalinity – STC meter / refractometer

6/19/2009 Jacksonville University 11

Marina Surveys

6/19/2009 Jacksonville University 12

Vessel Traffic Studies

6/19/2009 Jacksonville University 13

Power Plant Surveys

JEA Southside and KennedyMonitored daily between Nov - FebScar patterns recordedOther sites

6/19/2009 Jacksonville University 14

Manatee Protection

Waterways activities/eventsRescues & carcass recovery Other observationsSpecial areas

6/19/2009 Jacksonville University 15

Manatee education and awareness

JU Speakers Bureau

Duval County Manatee Hotline(904) 256-7575

www.ju.edu/academics/research.asp

6/19/2009 Jacksonville University 16

6/19/2009 Jacksonville University 17

Kfish Tournaments

Kfish Tournaments

END

A Cessna 172 High wing aircraft.

A Cessna 172 High wing aircraft.

B Manatee feeding near dock @ shoreline.

C Manatee traveling under dock.

D Manatee traveling open water.

E Manatee @ Epping Forest Marina.

F Manatee feeding

G Manatee traveling inside docks.

H Manatee traveling outside docks.

I Manatee traveling outside docks.

J Manatee traveling outside docks

K Water hose

Cavorting Manatees

L Tape grass @ Bolles School

M Ground truthing

N Hand held GPS

O Trimble GPS

P Refractometer

Q Inventory of Boat Facilities

R Observer watching for traffic.

Jefferson Smurfit

Back arch SSJEA Winter

Sworl & Back arch SSJEA Winter

Tail SSJEA Winter

Head SSJEA Winter

M&Calf Club Cont. May96

Scar pattern

Scar pattern

M&CalfSSJEA

Speed boat races

Ski shows

Main Street Obs

Manatee rescue SSJEA Stumpy

Manatee rescued at JU dock broken back later died at Sea World

Carcass recovery

Oil spill at Mayport Jetties

Gas Spill

Gas Spill

Speakers Bureau

M&New Born May 2000

M&New Born May 2000

Source: FWCC, DEP, BPSM, FMRI.

Source: FWCC, DEP, BPSM, FMRI.

Source: FWCC, DEP, BPSM, FMRI.

Bull_Shark_Fendindina

Dolphins

Sting Rays

Ducks

Blue Heron

Limpkin

Fish Sores

Development

JTB Bridge

IR Downtown

IR Exchange Island

Summer01

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DUVAL

ST. JOHNS

ATLANTICOCEAN

FullerWarrenBridge

BuckmanBridge

NASSAU CO.

CLAY

DUVAL

N

MANATEE SIGHTINGS IN DUVAL COUNTY, FLORIDA(SUMMER, 2001)

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DUVAL

ST. JOHNS

ATLANTICOCEAN

FullerWarrenBridge

BuckmanBridge

NASSAU CO.

CLAY

DUVAL

N

MANATEE SIGHTINGS IN DUVAL COUNTY, FLORIDA(FALL, 2001)

NOTE: Each dot represents the location of a sighting, not the number of manatees sighted.

Winter01/02

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DUVAL

ST. JOHNS

ATLANTICOCEAN

FullerWarrenBridge

BuckmanBridge

NASSAU CO.

CLAY

DUVAL

N

MANATEE SIGHTINGS IN DUVAL COUNTY, FLORIDA(WINTER, 2001-2002)

NOTE: Each dot represents the location of a sighting not the number of manatees sighted

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DUVAL

ST. JOHNS

ATLANTICOCEAN

FullerWarrenBridge

BuckmanBridge

NASSAU CO.

CLAY

DUVAL

N

MANATEE SIGHTINGS IN DUVAL COUNTY, FLORIDA(SPRING, 2002)

NOTE: Each dot represents the location of a sighting, not the number of manatees sighted.

Summer02

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DUVAL

ST. JOHNS

ATLANTICOCEAN

FullerWarrenBridge

BuckmanBridge

NASSAU CO.

CLAY

DUVAL

N

MANATEE SIGHTINGS IN DUVAL COUNTY, FLORIDA(SUMMER, 2002)

NOTE: Each dot represents the location of a sighting, not the number of manatees sighted.

Duval WC = Duval County Watercraft related manatee deathsDuval TD = Total manatee deaths in Duval CountyD5yr.WC ave. = Five year running average for Duval County Watercraft related manatee deaths

1976

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Duval WC 2 1 5 6 0 1 1 2 7 4 2 5 4 6 3 9 2 2 2 3 3 2 3 2 4 1 10Duval TD 6 11 11 11 3 7 3 8 16 9 13 12 9 20 13 19 8 5 6 7 10 10 13 9 11 6 13D5yr.WC ave. 3 3 3 2 2 3 3 4 4 4 4 5 5 4 4 4 2 2 3 3 3 2 4

0

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20N

um

ber o

f man

ate

e d

eath

s

Average Monthly Salinity at JU Dock

1999

2000

2001

2002

0

5

10

15

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25

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Sal

inity

(ppt

)

1999 2000 2001 2002

Mean monthly salinity recorded at the Jacksonville University dock, Duval Co., FL 1999 - 2002.

MANATEES AND DUGONGSJohn E. Reynolds IIIand Daniel K. Odell