Learn More
A vertical array of five hydrophones was used to measure the acoustic field in the vertical plane of singing humpback whales. Once a singer was located, two swimmers with snorkel gear were deployed to determine the orientation of the whale and position the boat so that the array could be deployed in front of the whale at a minimum standoff distance of at(More)
In resident manta rays (Manta alfredi) off Maui, sexual maturity appears delayed until growth exceeds 90% of maximum size, an indicator that large body size provides a reproductive advantage at the expense of a shorter reproductive time period. In this study, 286 surveys were conducted between 2005 and 2010 using photo-identification and photogrammetry to(More)
Predictive habitat models can provide critical information that is necessary in many conservation applications. Using Maximum Entropy modeling, we characterized habitat relationships and generated spatial predictions of spinner dolphin (Stenella longirostris) resting habitat in the main Hawaiian Islands. Spinner dolphins in Hawai'i exhibit predictable daily(More)
While on their winter breeding grounds, male humpback whales (Megaptera novaeangliae) produce long sequences of structured vocalizations called song, whose function within the mating system is still unresolved. Here we ask which males sing. Is it only those sexually mature, as typifies songbirds and some lekking ungulates in which vocalizations during the(More)
Introduction The Mariana Archipelago is made up of 15 islands stretching approximately 880 km in a north‐south arc from the northern‐most island of Farallón de Pájaros (also known as Uracas, located at 20° 31'N, 144° 54'E) to Guam (the largest and southern‐most island, located at 13° 28' N, 144° 47' E). The southern (" Main ") Mariana Islands from Guam to(More)
False killer whales (Pseudorca crassidens) around the main Hawaiian Islands: long-term site fidelity, inter-island movements, and association patterns. Marine Mammal Science 24: 591-612. Photo-identification and satellite-tagging of false killer whales during HICEAS 2010: evidence of an island-associated population within the Papahanaumokuakea Marine(More)