title: Presumed filter-feeding in a deep-sea benthic shrimp (Decapoda, Caridea, Stylodactylidae), with records of the deepest occurrence of carideans.
abstract: Using the remotely operated vehicleDeep Discoverer, we observed a large stylodactylid shrimp resting on a sedimented sea floor at 4826 m in the Marianas Trench Marine National Monument. The shrimp was not collected but most closely resembledBathystylodactylus bathyalis, known previously only from a single broken specimen. Video footage shows the shrimp facing into the current and extending its upraised and fringed first and second pereopods, presumably capturing passing particles. The video footage is the first ever to show a living deep-sea stylodactylid and constitutes the deepest record for the family. We provide a list of the deepest reports of caridean shrimps world-wide.
authors.affiliation: Department of Biology, Texas A&M University, College Station Texas 77843-3258, USA.
authors.forename: Mary
authors.initials: M
authors.lastname: Wicksten
authors.affiliation: Oxford University Museum of Natural History, Parks Road, Oxford, OX1 3PW, United Kingdom.
authors.forename: Sammy
authors.initials: S
authors.lastname: De Grave
authors.affiliation: Department of Biology, University of Louisiana at Lafayette, P.O. Box 43602, Lafayette, Louisiana, 70504 USA.
authors.forename: Scott
authors.initials: S
authors.lastname: France
authors.affiliation: Hawaii Undersea Research Laboratory, University of Hawaii, Honolulu, Hawaii 96822 USA.
authors.forename: Christopher
authors.initials: C
authors.lastname: Kelley
keywords: Deep-sea shrimp; Marianas Trench; Stylodactylidae; carideans; feeding