The third edition of The Sponge Guide, a web-based, image-intensive key to the sponges of the Caribbean, was just released. Over 230 species-morphs are now represented in the guide, illustrated with over 2,100 images. And in this update, the authors include for the first time composite images (see image below) of sponge skeletal elements (spicules and collagen fibers), which are important for the definitive identification of some sponge species. The Fulbright Scholarship Program and NSF helped fund a year-long stay by Sven Zea at The University of North Carolina Wilmington to work on this update.
Since inception, the Sponge Guide has had nearly 100,000 users and over 475,000 page-views from 178 countries and all 50 US states!
The Guide has been well received by users ranging from sponge specialists to students in field courses, to sport-divers wanting to know the identity of the beautiful sponges that are so common on Caribbean reefs. Find it online at: http://www.spongeguide.org.
The citation is: Zea, S., Henkel, T.P., and Pawlik, J.R. 2014. The Sponge Guide: a picture guide to Caribbean sponges. 3rd Edition.