Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
20090930
CRED Fish Biomass Estimates at Tutuila Island, 2008
Format: Video imagery, track line navigation files, and log sheets
http://www.soest.hawaii.edu/pibhmc/pibhmc_amsamoa_tutuila_optical.htm
Fish biomass data were collected using a Towed Optical Assessment Device (TOAD), an underwater sled
equipped with an underwater digital video camera and lights. Data were collected at American Samoa,
Tutuila Island to support Benthic Habitat Mapping efforts.
These data will provide optical observations that will be correlated with bathymetry and acoustic backscatter imagery
to create a fish biomass map of Tutuila Island. Refer to supplemental information for description of
instrument and survey.
Tutuila is the largest of seven islands in American Samoa at 142.3 sq. km. Volcanic in
origin, it reaches a height of 653m at Matafao Peak. Tutuila is centered at 14.30 degrees N, 169.75 degrees W,
has 101.3 km of coastline and an estimated 36.2 sq. km of reef area. The port of Pago Pago is a collapsed crater
and is one of the largest natural ports in the Pacific. Pago Pago contains a tuna cannery which is a hub of a large
purse-seining tuna fishing fleet. The cannery outputs large amounts of nutrients as byproduct into the waters of
Pago Pago harbor. The human population of Tutuila in 1990 was 45,043. It is considered a high island and contributes
significant nutrient and sediment runoff to coastal waters. Tutuila's waters are protected by the 0.7 sq. km
Fagatele Bay National Marine Sanctuary, as well as by the National Park of American Samoa, which covers the
north-central part of the island and approximately 5 sq. km of coastline.
Optical validation data were collected using the Tethered Optical Assessment Device (TOAD), a sled equipped with underwater
video camera and lights. These data are used to provide fish count and biomass maps where benthic habitat classification has
been completed. Camera sled deployments were conducted during daylight hours, usually between 0600 and 1700. The duration of each tow varied but averaged about 40 minutes of
bottom time at a given location. The camera sled was deployed from the starboard gunwhale of the Bonavista II. At each station the TOAD was lowered
slowly to the bottom by the deck crew. The operator monitored a live video feed from the camera and began recording data on the video tape recorder. When the camera reached bottom the deck crew was notified by radio to stop lowering. The vessel then began a course of a predetermined heading
maintaining a speed of approximately 1 knot for the remainder of the survey. The operator continued to monitor the vehicle and provided commands
to raise or lower it to keep the camera just above the bottom.
Equipment Description: The TOAD was deployed from the starboard gunwhale of the vessel. The TOAD sled body used for the 2008 data collection is
constructed from a shortened Phantom ROV body with a tail piece added for stability. It is equipped with a Deep Sea Power and Light Multi SeaCam
2060 color video camera, two 500 W DeepSea Power and Light Multi-SeaLite model 1050 underwater lights, a sonar altimeter to detect the height of
the camera above the seafloor, a pair of parallel lasers to determine the size/scale of viewed objects, a compass to determine the sled heading
and orientation, and a depth (pressure) sensor. The video signal from the sled is send via a coaxial conductor within a 200 m long and 127 mm diameter
umbilical cable to a topside control unit. All TOAD surface components were located below deck in the V berth of the vessel within an equipment rack
secured to the benches.
Data Files: Video data were recorded on a video tape recorder. The position of the camera sled was recorded using Hypack Max version 6.2b survey software.
File naming convention: Each tow is given a name consisting of a 3-letter designator for the island area followed by two-digit year and three-digit tow number. For example, during BV0801 (Bonavista II's 1st cruise in calendar year 2008) the first tow was called TUT08001. Video tape labels and paper log forms are annotated with the tow name. Data files recorded in Hypack software followed their CHS filename format consisting of the year, the first two letters of the platform name, the Julian date, and the hour and minute in which the file was started. For example, a file collected on July 18, 2005 (Julian date 199) aboard the Hi'ialakai starting at time 1935 would be 2005HI1991935.
Time Correlation: All times are based on UTC. Three clocks were manually synchronized prior to starting data collection; the clock in the video character generator that was used to annotate the video tape, in the video cassette recorder, and in the computer running the Hypack Max software. These clocks were set to UTC at the beginning of each day's operations.
Name & address of person collecting data:
John Rooney
NOAA IRC
NMFS/PIFSC/CRED
1845 WASP Blvd., Building 176
Honolulu, HI 96818
Resource Description: Digital video imagery that is geo-referenced to navigation
files.
20080215
20080225
ground condition
As needed
-170.92
-170.49
-14.20
-14.38
NCEI Geoportal FilterCoRIS_Metadata
CRCP Project
Benthic Habitat Mapping and Characterization - American Samoa and the U.S. Pacific Remote Island Area
1084
CoRIS Theme Thesaurus
EARTH SCIENCE > Biosphere > Aquatic Habitat > Benthic Habitat
EARTH SCIENCE > Biosphere > Zoology > Corals > Reef monitoring and assessment > Photographic analysis > Videography
EARTH SCIENCE > Biosphere > Zoology > Corals > Reef monitoring and assessment > Mapping
None
Tethered Optical Assessment Device (TOAD)
Underwater video
OES0402
CoRIS Discovery Thesaurus
Geographic Information > Fish Stock Characteristics
ISO 19115 Topic Category
environment
007
biota
002
CoRIS Place Thesaurus
OCEAN BASIN > Pacific Ocean > American Samoa > Tutuila Island (14S170W0016)
COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Tutuila Island (14S170W0016)
OCEAN BASIN > Pacific Ocean > Tutuila Island > Pago Pago (14S170W0008)
COUNTRY/TERRITORY > United States of America > American Samoa > Tutuila Island > Pago Pago (14S170W0008)
OCEAN BASIN > Pacific Ocean > American Samoa > American Samoa (14S170W0000)
COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > American Samoa (14S170W0000)
None
Tutuila
American Samoa
CoRIS Region
AmSam
None
Please acknowledge the NOAA Coral Reef Ecosystem Division, Pacific Islands Fisheries Science Center as
the source of this information.
Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
John Rooney
mailing and physical address
NOAA IRC
NMFS/PIFSC/CRED
1845 WASP Blvd., Building 176
Honolulu
HI
96818
808 725-5360
808 725-5429
nmfs.pic.credinfo@noaa.gov
e-mail preferred
http://www.soest.hawaii.edu/pibhmc/amsamoa_images/tut_toad_mf_445.jpg
Tutuila, American Samoa: TOAD Tows and Multibeam Bathymetry
JPEG
Benthic Habitat Mapping Group, Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science
Center (PIFSC), National Oceanic and Atmospheric Administration (NOAA)
Not applicable
Unclassified
Not applicable
Unspecified
Complete
Hypack Max includes a window for manual entry of the length of camera sled cable paid out, a utility to enter horizontal and vertical offsets between the GPS antenna and sheave over which the camera sled cable passes, and a built-in caternary function. Using these data, Hypack Max automatically estimates the camera sled's position. Analysis of tow data indicate that horizontal positional uncertainty associated with the location of the camera sled recorded in Hypack is plus or minus 13 m.
After a tow was completed the video tape data was reviewed by spot checking the master and
backup tape to verify that data were recorded. Navigation data were copied from the acquisition computer to the
data archive. A metadata extractor (gloFilter.py, version 3/06) was run to summarize the navigation data and test
for errors. If errors were detected they were corrected or flagged as appropriate and a new data file was made.
This file's header was updated to document what type of processing occurred. A metadata file was recorded in the
data archive in the same location as the navigation data. Processed navigation data were then read into ArcView 3.2
shapefiles using an ArcView Avenue script named TOAD.Import.Playback, version 9/25/01, written by Ronald Hoeke.
TOAD video were classified for benthic habitat type to create Optical Validation maps to interpret acoustically
derived data layers. These classified points were imported into a Microsoft Access 2003 database. All fish present
during 15 second intervals before and after these positions were recorded and identified. Using LW coefficients
derived from fishbase.org and size estimates from video, total biomass was calculated for a given point. An area
of 0.0012 hectares per point observation was assumed based on average distances traveled between points as well as
average width of field of view. A table with position, island, biomass(tonnes/hectare), and number of fish was
exported from MS Access into ArcGis v9.3. This file was exported as a shapefile. A column with biomass data was
symbolized using layer file MF_Biomass.lyr to create Fish Biomass Estimates map.
20090901
0.0001
0.0001
Decimal degrees
D_WGS_1984
WGS_1984
6378137.000000
298.257224
No correction
0.1
meters
Attribute values
Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
John Rooney
mailing and physical address
NOAA IRC
NMFS/PIFSC/CRED
1845 WASP Blvd., Building 176
Honolulu
HI
96818
808 725-5360
808 725-5429
nmfs.pic.credinfo@noaa.gov
e-mail preferred
Downloadable Data
These data are not to be used for navigational purposes.
NOAA makes no warranty regarding these data, expressed or implied, nor
does the fact of distribution constitute such a warranty. NOAA cannot assume
liability for any damages caused by any errors or omissions in these data, nor
as a result of the failure of these data to function on a particular system.
ASCII
Each comma-delimited record contains information on the UTC date and time, horizontal position of the sled, and heading of the ship over the period of time that the camera sled is in the water.
List of navigation files:
2008BO0462029
2008BO0462310
2008BO0470000
2008BO0470030
2008BO0470206
2008BO0471845
2008BO0472019
2008BO0472232
2008BO0480000
2008BO0480001
2008BO0480002
2008BO0480039
2008BO0480134
2008BO0481808
2008BO0481809
2008BO0482056
2008BO0482056A
2008BO0482111
2008BO0482318
2008BO0482318A
2008BO0490000
2008BO0490000A
2008BO0490136
2008BO0500003
2008BO0500758
2008BO0500930
2008BO0501059
2008BO0510027
2008BO0511918
2008BO0512041
2008BO0512212
2008BO0520014
2008BO0521905
2008BO0522022
2008BO0522219
2008BO0530016
2008BO0531915
2008BO0532034
2008BO0532140
2008BO0532316
2008BO0540000A
2008BO0540043
2008BO0541938
2008BO0542127
2008BO0542129
2008BO0542255
2008BO0550000
2008BO0550000A
2008BO0550044
2008BO0551843
2008BO056005
2008BO0560124
2008BO056192
http://www.soest.hawaii.edu/pibhmc/pibhmc_amsamoa_tutuila_optical.htm
CD-ROM
ISO 9660
mini digital video (and DVD)
38h 8m of video data are available covering 83.2 km of seabed. These data were recorded on 47 video tapes
List of video tapes:
TUT08001 (Tape A), Mini DV Master, DVD Backup
TUT08001 (Tape B), Mini DV Master, DVD Backup
TUT08002, Mini DV, Master, DVD Backup
TUT08003, Mini DV, Master, DVD Backup
TUT08004, Mini DV, Master, DVD Backup
TUT08005, Mini DV, Master, DVD Backup
TUT05006 (Tape A), Mini DV Master, DVD Backup
TUT08006 (Tape B), Mini DV Master, DVD Backup
TUT05007 (Tape A), Mini DV Master, DVD Backup
TUT08007 (Tape B), Mini DV Master, DVD Backup
TUT08008, Mini DV Master, DVD Backup
TUT08009, Mini DV Master, DVD Backup
TUT08010 (Tape A), Mini DV Master, DVD Backup
TUT08010 (Tape B), Mini DV Master, DVD Backup
TUT08010 (Tape C), Mini DV Master, DVD Backup
TUT08011, Mini DV Master, DVD Backup
TUT08012, Mini DV Master, DVD Backup
TUT08013, Mini DV Master, DVD Backup
TUT08014, Mini DV Master, DVD Backup
TUT05015, Mini DV Master, DVD Backup
TUT08016, Mini DV Master, DVD Backup
TUT05017, Mini DV Master, DVD Backup
TUT08018 (Tape A), Mini DV Master, DVD Backup
TUT08018 (Tape B), Mini DV Master, DVD Backup
TUT08019, Mini DV Master, DVD Backup
TUT08020, Mini DV Master, DVD Backup
TUT08021 (Tape A), Mini DV Master, DVD Backup
TUT08021 (Tape B), Mini DV Master, DVD Backup
TUT08022, Mini DV Master, DVD Backup
TUT08023, Mini DV Master, DVD Backup
TUT08024, Mini DV Master, DVD Backup
TUT08025, Mini DV Master, DVD Backup
TUT08026, Mini DV Master, DVD Backup
TUT08027, Mini DV Master, DVD Backup
TUT08028, Mini DV Master, DVD Backup
TUT08029, Mini DV Master, DVD Backup
TUT08030, Mini DV Master, DVD Backup
TUT08031, Mini DV Master, DVD Backup
TUT08032 (Tape A), Mini DV Master, DVD Backup
TUT08032 (Tape B), Mini DV Master, DVD Backup
TUT08033, Mini DV Master, DVD Backup
TUT08034 (Tape A), Mini DV Master, DVD Backup
TUT08034 (Tape B), Mini DV Master, DVD Backup
TUT08035, Mini DV Master, DVD Backup
TUT08036, Mini DV Master, DVD Backup
TUT08037, Mini DV Master, DVD Backup
TUT08038, Mini DV Master, DVD Backup
Video cassette tape
Mini DV
MP4
http://www.soest.hawaii.edu/pibhmc/pibhmc_amsamoa_optical_data.html
None
20200329
20091202
Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
mailing and physical address
NOAA IRC
NMFS/PIFSC/CRED
1845 WASP Blvd., Building 176
Honolulu
HI
96818
808 725-5360
808 725-5429
nmfs.pic.credinfo@noaa.gov
e-mail preferred
FGDC Content Standards for Digital Geospatial Metadata
FGDC-STD-001-1998
local time
None
None
20091202011732
None
20080215
20080225
https://www.coris.noaa.gov/metadata/records/html/cred_toad_tutuila_bv0801_2008_mobilefauna.html
4356