Partners:


Wildlife Trust


Alabama Division of Wildlife & Fresh Water Fisheries


U.S. Fish & Wildlife Service


Baldwin County Soil and Water Conservation District

   
 
 
 


ACTIVITY & NOTES 

Below you will find a list of codes, commonly used by scientist to describe manatee behaviors.  These codes are provided to help you refine your sighting descriptions.  You may use them if you like, but it is not required. 
 

  

C         Cavorting – rolling, spy hopping, tail coming out of water, quickly swimming back and forth around other animal(s) or even grabbing and rolling with another animal.  This behavior is usually pre-cursor to mating behavior if focal female is present. 

D         Drinking – slurping water at the surface; diving down to crack in cement and mouthing wall

F          Feeding – vegetation observed being pulled below water column; vegetation in mouth or chewing movement of mouth when at surface; mud trail coming from area animal is in (i.e. feeding on the bottom); fast breaths with head being thrown out of water every 2-3 minutes in calm water can also indicate feeding behavior (primarily observed in saltwater)

H         Human interaction – human in the water or land which has caused the animal to change its behavior    

HB      Human boat – animal changes behavior due to boating activity nearby; record estimated distance boat is from animal; please also note when a boat goes by an animal even if no behavior change is observed.

M       Mating – primary difference between cavorting and mating behavior is that a focal female animal is present.  This means all other animals are focusing their cavorting behavior on one specific animal.  Female can be observed to climb into shallow water to avoid males or tail slap males when they are grabbing her when she is not receptive.  Copulation is confirmed when a female floats calmly on the surface (back at surface) while male goes under female upside down and at an angle to her body.  Copulation is very calm and little activity can be detected. 

L          Milling – slow back and forth movement of animal without clear direction.  This behavior could also be foraging behavior of animal prior to feeding.

N         Nursing – calf will nurse under either flipper.  Mother can sometimes be see turning her onto her slide slightly while extending her flipper to help calf locate mammary gland

P          Pacing - swimming tight circles; this has been considered a response to stress (seen in many recently released rehab. animals) or an energy exert behavior to keep warm

RB      Resting on bottom – animal rises to the surface to breathe every 7-10 minutes (max 15 minutes recorded) for 2-3 breaths at a time and then slowly sinks to the bottom

RS       Resting at surface – animal resting with back floating at surface; will take 2-3 breaths every 7-10 minutes (max 15 minutes recorded)

S          Socializing – touching noses; chewing along body, slight body touching; close following while milling followed by touching.  If behavior turns to “body parts” coming out of water, socializing behavior has changed to cavorting.

T          Traveling – movement with directed path and purpose; speed usually constant and faster than milling behavior; movement can be long range or to other side of river

 (M.Ross/Wildlife Trust)  

Please Note:  Manatees are an endangered species, protected under the federal Endangered Species and Marine Mammal Protection Acts, the Florida Manatee Sanctuary Act and a protected species under the Alabama Nongame Species Regulation. It is illegal to harass manatees (including touching, riding, poking, feeding/watering, chasing, surrounding, or otherwise altering their natural behavior).  Federal conviction for manatee harassment is punishable by up to $100,000 fine and/or one year in prison.


Credit:  Monica Ross
Wildlife Trust

 

 
  This study will include aerial and ground surveys of manatees in Mobile Bay and research to determine what manatees eat while in the Bay. The project, funded by the U.S. Fish and Wildlife Service, is a collaboration between Dauphin Island Sea lab and researchers at Wildlife Trust in Florida.  
 

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Last Date Updated: 07/18/07