Today’s Gulf sea turtle – Loggerhead

As The Baltimore Sun’s Candus Thomson notesall five species of sea turtles found in the Gulf are listed under the Endangered Species Act (this was true even before the BP oil disaster). We’re looking at fast facts about these species – this week, it’s the Loggerhead:

Loggerhead Sea Turtle
(Caretta caretta)

  • named for their large heads
  • listed as “threatened” under the Endangered Species Act since 1978
  • adults generally grow to be 31 to 45 inches large, and weigh 170 to 250 pounds
  • reach sexual maturity around 20 to 30 years old; loggerheads are estimate to live up to and beyond 50 years
  • dine on jellyfish, sponges, shellfish, shrimp, squid, barnacles, sea urchins and occasionally seaweed
  • thought to be the largest hard shell turtle species
  • in the Gulf, nest primarily along the Florida coast
  • the Archie Carr National Wildlife Refuge is the most important nesting area for loggerheads in the western hemisphere

Loggerhead turtles are threatened by the same things imperiling all sea turtles — marine debris, degradation of nesting habitat, capture for meat and eggs. One of the primary threats they face is incidental capture in fishing gear – from nets to longlines. Commercial shrimp trawlers have historically had a relatively high incidental turtle catch. Now, those trawlers’ nets have turtle excluder devices (TEDs). A TED is an grid of crossbars at the neck of the trawl net – it allows turtles and sharks caught in the net to get out. This ‘escape hatch’ is credited with saving countless sea turtles. The US government says it’s working with other countries who export shrimp to the US to require encourage shrimp trawlers to use TEDs. The photo on left is a loggerhead escaping a trawl net via a TED.

Photos courtesy NOAA: top photo, Marco Giuliano/ Fondazione Cetacea

Information sources:
National Marine Fisheries Service, NOAA
National Park Service
US Fish & Wildlife Service
Connecticut Dept of Environmental Protection

Advertisements

One response to “Today’s Gulf sea turtle – Loggerhead

  1. Pingback: Loggerhead turtle emerging « Oceanwire·

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s