Squid egg capsules (probably from Loligo plei
) covering 50-80% of a sand bottom. Egg capsules were arranged in groups of about 10-40 with their bases collocated. Estimated NE-SW extent of spawning bed was around 40 meters.
From: Vecchione, Michael. 1988. In situ observations on a large squid-spawning bed in the eastern Gulf of Mexico. Malacologia, vol. 29(1): 135-141.
Online abstract: http://invertebrates.si.edu/cephs/v88/v88.html
To see other cephalopod videos: http://collections.si.edu/search/results.htm?fq=online_media_type%3A%22Video+recordings%22&q=&fq=tax_class:%22Cephalopoda%22