1. Fisheries Bycatch
Sea turtles get tangled and caught in fishing and shrimp trawls where they often drown and are discarded.
Image from http://www.destination-scuba.com/images/greenturtlesbycatch.jpg
Sometimes they consume fish hooks that puncture areas around their mouths or enter their bodies and affect internal organs.
Image from http://oceana.org/sites/default/files/blog/corywilson_oceana_seaturtles_140.JPG
They are also harvested just to have their shells made into jewelry.
2. Pollution
3. Destruction
Image from http://costaricanconservationnetwork.files.wordpress.com/2009/12/tiliches.jpg
My graphs were composed using article 1.
Image from http://ocean-aid.org/wp-content/uploads/2011/05/Copy-of-North_Pacific_Gyre_World_Map.png
Image from http://thegldc.com/blog/wp-content/uploads/2009/06/7169496.jpg
Even large garbage pieces like lawn chairs make an impact.
Image from https://mail-attachment.googleusercontent.com/attachment/u/1/?ui=2&ik=f9ddfbf6da&view=att&th=135f3232790df393&attid=0.1&disp=inline&realattid=f_gzk0e8ng0&safe=1&zw&saduie=AG9B_P91peGanOdm8LEi6gvQguz-&sadet=1331272648912&sads=mSGQ4BMY801LBLUUq21eGwdZ5U4
Spilled oil from land runoff, tanker spils, drilling and natural seepage from tectonic plate movements can leak oil into our oceans.
Image from http://magblog.audubon.org/files/magazine/u25/Oiled_Turtles.png
Image from http://yourcruisingeditor.files.wordpress.com/2011/04/oil-covered-turtle.jpg
3. Destruction
- Coastal Developments
Image from http://www.conserveturtles.org/images/velador/Richard_Fowlkes_wall3.JPG
- Natural Destruction
Trees that grow along beaches have roots naturally planted in the sand. If the sea turtles lays her eggs too close to trees, the roots can destroy the newly nested egg, therefore killing the sea turtle embryo.
Image from https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiPW6CS6qtOUJfMC2VCI64FA3sklMb77DebdC5FSpoTuHnphSc7wBFlPf10hUT1Xcca5zsKLQGjtJ-XHnRcnhlPYIGyd4k1CnwOjiCNZCl-P9dZ9lg_PAq_jJyERKqGh056ouMZ7TSobrY/s1600/e1.jpg
5. Global Warming
Increasing temperatures are forcing sea turtles to alter their routes and ranges.
Image from http://sos.noaa.gov/images/Ocean/loggerhead.jpg
Increased global warming is altering sand temperatures causing an increased rate of sea turtle embryo deaths.
Image from http://saveourleatherbacks.org/i/leatherback_cookedinshellssm.jpg
6. Direct Take
A local native is illegally poaching turtle eggs to sell in the international market.
Image from http://blog.conservation.org/wp-content/uploads/2012/02/representation-of-sea-turtle-egg-poaching.jpg
Sea turtle eggs and meat are considered delicacies in some countries and therefore are harvested. The selling of eggs and shells are also a source of income some of countries. Even with laws to protect them, they are still illegally poached.
Image from http://coastalcare.org/wp-content/gallery/turtles-email/att00002.jpg
Image from http://coastalcare.org/wp-content/uploads/2010/12/sea-turtle-eggs-sale.jpg
- Disease
Although the cause is unknown, sea turtles are developing tumors from viruses and other diseases.
Image from http://i.livescience.com/images/i/7750/iFF/090624-turtle-tumor-02.jpg?1296089567
A sea turtle affected with a viral tumor Fibropapillomatosis. It affects the turtles eyesight and ability to feed.
Image from http://www.worldofstock.com/slides/NAN3658.jpg
Great video on Sea Turtle Threats
What types of pollution? Is there a history behind human consumption?
ReplyDeleteWhy the roots? I really like all the pictures you used!!
ReplyDeleteI think you have a good start on the reasons but definitely need some in depth explanations to go along with the pictures. I did like you you split up the all the threats to which stage of life they threaten.
ReplyDelete-Abby Smith
This is pretty good. I think to improve this page, you should write a few lines per bullet point and write in a more scientific tone.
ReplyDelete