Authors: Mary Yoklavich, Tom Laidig, Lisa Krigsman, Andrew Taylor, Diana Watters, Milton Love, Lonny Lundsten, and Ben Negrete

Abstract: In 2010, the NOAA Deep-Sea Coral Research and Technology Program (DSCRTP) initiated a three year study to advance our understanding of DSC off the west coast of the U.S. During the first year of this study, a coast-wide survey of the distribution and abundance of DSC from Washington to southern California was conducted during three legs of a cruise aboard the NOAA ship McArthur II using the Kraken 2 remotely operated vehicle (ROV; operated by the University of Connecticut) and the Seabed autonomous underwater vehicle (AUV; operated by Northwest Fisheries Science Center). Our report provides a summary of the methods and results from underwater surveys of corals, sponges, and associated habitats, invertebrates, and fishes conducted during Leg 3 of the cruise using the ROV on a deep rocky seamount in the SCB. These surveys were a collaborative
effort among researchers from the Southwest Fisheries Science Center (SWFSC), the University of California Santa Barbara, and the Monterey Bay Aquarium Research Institute. The specific objectives of our research during Leg 3 were to: 1. collect baseline data on abundance, size, condition, and distribution of DSC on the Piggy Bank seamount; 2. quantify fish and invertebrate associations with DSC to help understand the value of DSC as habitat; 3. document environmental conditions of DSC habitats, including depth, sea floor substratum types, and seawater temperature, salinity, pH, and dissolved oxygen to help understand habitat factors that influence DSC distribution; and 4. collect specimens of DSC and associated organisms for confirmation of taxonomic identifications and for genetic, reproductive, and stable isotope analyses.

  • Technical Report
Type: DSCRTP Supported Date: 2011
  • Pacific Council
  • Piggy Bank