Photographs of grey whales have been collected by students of the School for Field Studies in Puerto San Carlos, B.C.S., Mexico, since 1998. We evaluated the utility of this student-based photographic archive as a tool to identify gray whale individuals and to characterize injuries over the whale’s bodies. A total of 278 individual were identified, several were re-sighted within years; however, none were re-sighted between years. The dorsal area was the most commonly photographed body region; however, photographs of the flukes proved to be useful for photographic identification as well. 6.8% of the whales photographed had injuries; most of them were big scratches followed missing tips of the flukes. Our results indicate that a well managed student-based cetacean photographic archive could easily and economically apply for short-term movement patterns investigations and for monitoring the occurrence injuries from anthropogenic interactions.
|Number of pages||8|
|Journal||Revista de Zoología|
|Publication status||Published - 2010|
Najera Hillman, E., & Williamson, L. (2010). Photo-identification of gray whales in Bahia Magdalena, Baja California Sur: the use of a student-base photographic archive. Revista de Zoología, 21, 15-22. http://www.redalyc.org/articulo.oa?id=49818036003