Project Title: Data Mining to Support Deep-Sea Coral and Sponge Research in Alaska
Goal or Purpose

1. To review and analyze archived deep-sea video footage and document locations of deep-sea corals in the Aleutian Islands and throughout Alaskan waters. Also, to produce a database containing coral locations and habitat data that can be used in future efforts to model coral habitat in the region. 

2. To compile bathymetry and sediment data for the Aleutian Islands.

Anticipated Management Application(s)

This project will provide new coral location data that may help elucidate the location of high abundance areas of corals that should rank as a high priority for closer examination (i.e. in situ observations and supplemental seafloor mapping) during the upcoming field research planned for the North Pacific Fishery Council Region in 2012-2014. These new data can also be used to augment already funded coral habitat modeling efforts in the region.

Fiscal Funding:
  • FY 2011 @ $100,000

 
Region(s):
  • North Pacific Council
Location(s):
  • Aleutian Islands
Coral garden with several species of soft corals, hydrocorals, hydroids, and demosponges off Alaska’s Aleutian Islands. Credit: A. Lindner, NOAA Fisheries
Project Type:
  • Data Mining
Point of Contact: Office of the Point of Contact:
  • NMFS AFSC
Team Members:
  • Chris Rooper
Project Title: Data Mining to Support Deep-Sea Coral and Sponge Research in Alaska
Methods/Approach

1. Coral locations in the central Aleutian Islands and elsewhere in Alaska will be identified by analyzing existing video footage collected with the submersible Delta and the remotely operated vehicle (ROV) Jason II. The footage covers 100s of kilometers of seafloor (depths 190-2800 meters). A database containing the spatial location of key coral and sponge taxa and habitat information such as substrate type, depth, and seafloor roughness will be linked with metadata for each dive.

2. AFSC scientists with the RACE Groundfish Program corrected, digitized, and assembled 2.1 million National Ocean Service (NOS) bathymetric soundings from 290 hydrographic surveys represented by smooth sheets, extending 1,900 km along the Aleutian Islands from Unimak Island in the east to the Russian border in the west. The original, uncorrected smooth sheet bathymetry data sets are available from the National Geophysical Data Center (NGDC), which archives and distributes data that were originally collected by the NOS and others. Details of our processing methods can be found in Smooth Sheet Bathymetry of the Aleutian Islands, NOAA Tech Memo NMFS-AFSC-250.

Project Results and Management Outcomes

The bathymetry and sediment data products, including the NOAA Tech Memo, are publicly available at: http://www.afsc.noaa.gov/RACE/groundfish/Bathymetry/Aleutians.htm

Project Title: Data Mining to Support Deep-Sea Coral and Sponge Research in Alaska
Internal References:
  •  None Defined
 
Backlinks:
  •  None Defined

FY11_07_image.JPG
Coral garden with several species of soft corals, hydrocorals, hydroids, and demosponges off Alaska’s Aleutian Islands. Credit: A. Lindner, NOAA Fisheries