PIFSC & SWFSC, Cetacean Survey, HICEAS 2010, Cruise 1642, NOAA Pacific Islands Fisheries Science Center
NOAA Pacific Islands Fisheries Science Center (PIFSC)
Dataset credit
NOAA Pacific Islands Fisheries Science Center
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Contacts
Role | Name | Organization | |
Primary contact |
Marie C. Hill |
NOAA Pacific Islands Fisheries Science Center |
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Data entry |
Ei Fujioka |
Duke University |
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Citation
Hill, M. 2023. PIFSC & SWFSC, Cetacean Survey, HICEAS 2010, Cruise 1642, NOAA Pacific Islands Fisheries Science Center. Data downloaded from OBIS-SEAMAP (https://seamap.env.duke.edu/dataset/2248) on yyyy-mm-dd. Halpin, P.N., A.J. Read, E. Fujioka, B.D. Best, B. Donnelly, L.J. Hazen, C. Kot, K. Urian, E. LaBrecque, A. Dimatteo, J. Cleary, C. Good, L.B. Crowder, and K.D. Hyrenbach. 2009. OBIS-SEAMAP: The world data center for marine mammal, sea bird, and sea turtle distributions. Oceanography. 22(2):104-115.
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Abstract
The Hawaiian Islands Cetacean Ecosystem Assessment Survey (HICEAS) was a collaborative project between the Southwest and Pacific Islands Fisheries Science Centers during which two NOAA ships (MacArthur II and Oscar Elton Sette) conducted line-transect surveys throughout the entire Hawaii exclusive economic zone (EEZ) over four months (August - December 2010). This dataset represents the surveys (2 Legs) aboard the Oscar Elton Sette that began and ended in Honolulu, HI (1 September - 29 October). There were 133 cetacean sightings which included 17 identified species as well as unidentified dolphins, large whales and beaked whales.
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Purpose
HICEAS 2010 was the second Hawaii EEZ-wide survey. The sighting data were used to estimate the abundance and distribution of cetaceans in Hawaiian waters (Bradford et al. 2017, 2021).
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Supplemental information
[2023-09-06] Some of the sightings got their group sizes estimated incorrectly. These are fixed.
Data were collected under NMFS permit 14097.
The data included here are the sightings and on-effort tracks recorded within WinCruz survey software and extracted from the QA/QC'd DASALL file using the R package swfscDAS (https://smwoodman.github.io/swfscDAS).
Attributes for fields within the trackline files: Cruise - see description in attribute table below segnum - segment number for continuous on-effort line Date - Local date m/dd/yyyy TimeStart - Local time at start of on-effort segment LatStart - Latitude in decimal degrees at starting point of on-effort segment LongStart - Longitude in decimal degrees at starting point of on-effort segment TimeEnd - Local time at end of on-effort segment LatEnd - Latitude in decimal degrees at end point of on-effort segment LongEnd - Longitude in decimal degrees at end point of on-effort segment Mode - see description in attribute table below EffType - see description in attribute table below avgSpdKt - average speed (knots) of the ship over the on-effort segment traveled avgBft - average Beaufort Sea State over the on-effort segment
Other data not included here: Photos and biopsy samples were collected during some sightings. Acoustic detections were recorded from a towed hydrophone array. Sonobuoys were deployed opportunistically. Oceanographic data were collected (CTD, XBT).
See the following dataset for the sightings and effort aboard the MacArthur II. PIFSC & SWFSC, Cetacean Survey, HICEAS 2010, Cruise 1641, NOAA Pacific Islands Fisheries Science Center
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References
Bradford, Amanda L.; Forney, Karin A.; Oleson, Erin M.; Barlow, Jay. 2017. Abundance estimates of cetaceans from a line-transect survey within the U.S. Hawaiian Islands Exclusive Economic Zone. Fishery Bulletin. Vol. 115 Issue 2, p129-142.
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Attributes
Overview
This section explains attributes included in the original dataset.
OBIS-SEAMAP restricts the attributes available to the public to date/time, lat/lon and species names/counts only.
Should you need other attributes described here, you are encouraged to contact the data provider.
Attributes described below represent those in the original dataset provided by the provider.
All attributes are included in the downloadable file (CSV or ESRI File Geodatabase) for "Complete Set of Dataset".
Attributes in dataset
Attribute (table column) | Description |
oid | Unique ID number (generated by OBIS-SEAMAP) |
line | Line No. |
sightno | Sighting No. (continuous numbers incrementing from 1) |
datetime | Date and time of the sighting at local time zone |
lat | Ship Latitude in decimal degrees |
lon | Ship Longitude in dcimal degrees |
cruise | Cruise No. |
mode | C = closing (observer team went off-effort when a cetacean group was sighted to focus on species identification, group-size estimation, or other data collection); P = passing (search effort was continuous even after a sighting was made; rare - generally occurring only when the ship was required to be somewhere at a specific time) |
efftype | Effort Type: S = standard/systematic (search effort while following predetermined parallel transects); N = Non-standard/non-systematic (search effort during transit between transect lines, to & from port, or circumnavigating islands) |
oneffort | Effort status assigned in the field: TRUE = on-effort (the 3-person observer team was on the flying bridge actively searching for cetaceans); FALSE = off-effort (the observer team had suspended active searching; e.g., during another sighting or inclement weather). Depending on analysis assumptions, some on-effort sightings could be considered off-effort (e.g., made by a non-primary observer or past a specified truncation distance). For more information on additional data attributes or considerations, please contact the data provider. |
nsp | Number of cetacean species present during an encounter (sighting) |
spcode | Numeric species code by provider |
sciname | Scientific name |
commonname | Common name |
sp_tsn | Taxonomic Serial Number added by OBIS-SEAMAP |
gsspbest | Best estimate of species group size (the arithmetic mean of all observers) |
gssphigh | High estimate of species group size (the arithmetic mean of all observers) |
gssplow | Low estimate of species group size (the arithmetic mean of all observers) |
perpdistkm | Perpendicular distance (km) of the sighted group from the trackline |
bft | Beaufort sea state |
swellhght | Swell height (height of predominant swell in feet) |
vis | Visibility (distance in nautical miles at which a dolphin could be seen surfacing with the water (not sky) as background) |
geom | Geometry field added by OBIS-SEAMAP |
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OBIS-SEAMAP ID | 2248 |
Seabirds | 0 |
Marine mammals | 133 |
Sea turtles | 0 |
Rays and sharks | 0 |
Other species | 0 |
Non spatial | 0 |
Non species | 0 |
Total | 133 |
Date, Begin | 2010-09-02 |
Date, End | 2010-10-29 |
Temporal prec. | 111111 |
Latitude | 15.72 - 28.40 |
Longitude | -179.37 - -152.63 |
Coord. prec. | 6 decimal digits |
Platform | Boat |
Data type | Animal sighting |
Effort | YES (ID: 2249) |
if ($show_effort_stat) {
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Traveled (km) | 7,296 |
Effort hours | 404 |
}
if ($sources != null and $sources != "" and $dataset_id != 427) { // Do not show ESAS
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Contr. through | |
}
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Registered | 2023-04-27 |
Updated | 2023-09-07 |
Status | Published |
Sharing policy |
CC0 no rights reserved |
Shared with |
OBIS
GBIF (via DOI) |
See metadata in static HTML |
See metadata in FGDC XML |
See download history / statistics |
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