Coastal habitat degradation and green sea turtle diets in Southeastern Brazil

Marine Pollution Bulletin
By: , and 

Links

Abstract

To show the influence of coastal habitat degradation on the availability of food for green turtles (Chelonia mydas), we assessed the dietary preferences and macroalgae community at a feeding area in a highly urbanized region. The area showed low species richness and was classified as degraded. We examined stomach contents of 15 dead stranded turtles (CCL = 44.0 cm (SD 6.7 cm)). The diet was composed primarily of green algae Ulva spp. (83.6%). In contrast, the macroalgae community was dominated by the green alga Caulerpa mexicana. We found a selection for red algae, seagrass and Ulva spp., and avoidance for C. mexicana and brown alga Dictyopteris delicatula. The low diversity of available food items, possibly a result of environmental degradation, likely contributed to the low dietary diversity. The nutritional implications of this restricted diet are unclear.

Study Area

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Coastal habitat degradation and green sea turtle diets in Southeastern Brazil
Series title Marine Pollution Bulletin
DOI 10.1016/j.marpolbul.2011.03.004
Volume 62
Issue 6
Year Published 2011
Language English
Publisher Elsevier
Publisher location Amsterdam, Netherlands
Contributing office(s) National Wildlife Health Center
Description 6 p.
First page 1297
Last page 1302
Country Brazil
City Vitoria
Online Only (Y/N) N
Additional Online Files (Y/N) N