HRC RIMPAC Small Vessel-Based Monitoring Surveys July 2010
HDR Environmental, Operations and Construction, Inc.

Dataset credit

The U.S. Navy Marine Species Monitoring Program


Primary contact Dana Spontak HDR Environmental, Operations and Construction, Inc.
Secondary contact Todd Mcconchie HDR Environmental, Operations and Construction, Inc.
Data entry Ei Fujioka Duke University



During 23 June through 1 August 2010, the 22nd Rim of the Pacific (RIMPAC 2010)
exercise was conducted in the Hawaii Range Complex (HRC). RIMPAC is a biennial,
multinational exercise designed to strengthen regional partnerships and improve
interoperability. It is an exercise designed to bring multinational military assets together
to train towards bettering the Navy’s capabilities. Anti-submarine warfare (ASW) was the
exercise's main feature.
As part of compliance requirements with the Marine Mammal Protection Act (MMPA) of
1972 and the Endangered Species Act (ESA) of 1973, the Navy developed the HRC
Monitoring Plan to provide marine mammal and sea turtle monitoring (DoN 2008). In
order to effectively meet the goals outlined in this Plan, it was determined that one
example of training events recommended for monitoring should contain one or more
surface combatants conducting ASW during a regularly scheduled training event.
Research elements of that Plan include visual surveys and passive acoustic monitoring.

The monitoring effort for RIMPAC 2010 consisted of the following:

- Vessel-based line transect surveys to assess the diversity, distribution, and
behavior of target species (e.g., marine mammals and sea turtles)

- Installation of one shallow- and one deep-water passive acoustic monitors (PAMs)
in waters off Ni'ihau.



Supplemental information

This dataset includes the data from the vessel-based line transect surveys.

The sighting of short-finned pilot whales and spinner dolphins on 7/19/10 was an aggregation of the two species and recorded as a single record. This sighting was split into each species in this dataset.




Attributes described below represent those in the original dataset provided by the provider.
Only minimum required attributes are visible and downlodable online. Other attributes may be obtained upon provider's permission unless otherwise noted below.

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 in dataset provided

Attribute (table column)Description
oiddefinition not provided
sighting_idSighting ID
obs_dateDate of the sighting (local time zone)
obs_timeTime of the sighting (local time zone)
sp_obsSpecies name recorded
sp_tsnTaxonomic Serial Number added by OBIS-SEAMAP
latitudeLatitude in decimal degrees
longitudeLongitude in decimal degrees
obs_countbest estimate of number of animals
grp_highHigh estimate of number of animals
grp_lowLow estimate of number of animals
calvesNumber of calves
beaufortBeaufort Sea State
bottom_depthBottom Depth (m)
behaviorBehavioral summary
geomdefinition not provided
Marine mammals10
Sea turtles0
Rays and sharks0
Other species0
Non spatial0
Non species0
Date, Begin2010-07-19
Date, End2010-07-24
Temporal prec.111110
Latitude21.71 - 21.90
Longitude-159.91 - -159.59
Coord. prec.6 decimal digits
Data typeAnimal sighting
Contr. throughNavy
Sharing policy CC-BY (All)
Also availalbe from iOBIS
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