https://doi.org/10.82144/4f8a2a65 https://seamap.env.duke.edu/dataset/921 https://www.gbif.org/dataset/eb2e0db0-079d-460e-a8ab-055f4a426dec https://obis.org/dataset/69d3fc57-a6fa-4ace-a0ad-acd4d2f545e5 Kristen Ampela HDR Environmental, Operations and Construction, Inc. Primary contact Kristen.Ampela@hdrinc.com Cathy Bacon HDR Environmental, Operations and Construction, Inc. Secondary contact catherine.bacon@hdrinc.com OBIS-SEAMAP Marine Geospatial Ecology Lab, Duke University

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seamap-contact@duke.edu https://seamap.env.duke.edu OBIS-SEAMAP Marine Geospatial Ecology Lab, Duke University

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seamap-contact@duke.edu https://seamap.env.duke.edu distributor Kristen Ampela HDR Environmental, Operations and Construction, Inc. Primary contact Kristen.Ampela@hdrinc.com owner Cathy Bacon HDR Environmental, Operations and Construction, Inc. Secondary contact catherine.bacon@hdrinc.com originator 2025-07-31 eng Original provider: HDR Environmental, Operations and Construction, Inc. Dataset credits: The U.S. Navy Marine Species Monitoring Program Abstract: The objective of this current survey effort was to conduct baseline surveys to further document marine mammal and sea turtle occurrence in nearshore waters around the island of Guam. This report presents the results of the Guam Marine Species Monitoring Survey conducted on the MV Island Girl from February 17 to March 3, 2011. This survey covered an area of approximately 4,100 square kilometers (km2)(1,200 square nautical miles ([nm2]) to document marine mammal and sea turtle distribution around the island of Guam. The approach primarily followed opportunistic survey protocols used in a recent survey around Guam (Ligon et al. 2011), which remained nearshore (within 5.6 kilometers [km] or 3 nautical miles [nm] of the coastline). ). The resulting sightings, therefore, consisted of spinner dolphins (Stenella longirostris; 7 of 9 sightings) and a mixed group of bottlenose dolphins (Tursiops truncatus) and short-finned pilot whales (Globicephala macrorhynchus). In addition, one species of sea turtle was observed (green sea turtle, Chelonia mydas). Additional lines of effort following standard line-transect protocols were attempted (out to 10 nm from shore) when sea conditions permitted. Occurrence GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml Observation GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml Marine Biology Visual sighting Hawaii Range Complex Vessels Sightings N/A The sighting of short-finned pilot whales and bottlenose dolphins on 02/22/11 was an aggregation of the two species and recorded as a single record. This sighting was split into each species in this dataset. This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License. https://seamap.env.duke.edu/dataset/921 Oceans,Pacific 144.642167 144.797167 13.568667 13.3815 2011-02-18 2011-03-03 Scientific names are based on the Integrated Taxonomic Information System (ITIS). species Chelonia mydas Green sea turtle family Delphinidae Dolphins species Stenella longirostris Spinner dolphin not provided notPlanned Kristen Ampela HDR Environmental, Operations and Construction, Inc. Primary contact Kristen.Ampela@hdrinc.com NA NA NA Kristen Ampela owner Cathy Bacon originator The U.S. Navy Marine Species Monitoring Program zd_921 2025-07-31T16:05:26-04:00 dataset Ampela, K. and C. Bacon. 2017. MIRC KB08 Vessel Surveys Feb-Mar 2011. Version 1.6.0. Dataset published in OBIS-SEAMAP. https://doi.org/10.82144/4f8a2a65. OBIS-SEAMAP Dataset Page UTF-8 Interactive map https://seamap.env.duke.edu/dataset/921 FGDC Metadata UTF-8 XML https://seamap.env.duke.edu/dataset/921/fgdc EML Metadata UTF-8 XML https://seamap.env.duke.edu/dataset/921/eml OBIS-SEAMAP zd_921 zd_921 HDR. 2011. Guam marine species monitoring survey: Vessel-based monitoring surveys winter 2011. Final Report submitted by HDR to U.S. Navy NAVFAC Pacific: 2012 Annual Marine Species Monitoring Report for the Mariana Islands Range Complex.