dc.contributor.author | Standora, Edward A. | |
dc.contributor.author | Nelson, Donald R. | |
dc.date.accessioned | 2020-09-03T11:33:06Z | |
dc.date.available | 2020-09-03T11:33:06Z | |
dc.identifier.uri | https://scholar.oxy.edu/handle/20.500.12711/11136 | |
dc.description.abstract | Nine Pacific angel sharks were tagged near Santa Catalina Island, California, with single-channel or multichannel ultrasonic transmitters incorporating various combinations of sensors to measure swimming speed, depth, light, and temperature. The sharks were tracked for periods of 13 to 25 h and were found to be basically nocturnal, apparently cuing on decreased light intensity averaging 7 lux (range, 1-16) to begin swimming activity which peaked at dusk and midnight. Mean of maximum rate of movement for each shark was 490 m/h. The tagged sharks moved an average of 4 km (range, 2-9) during the trackings and collectively occupied a home area of approximately 150 ha. The sharks swam at depths ranging from 27 to 100 m and readily crossed thermoclines. The number and size of individuals seen at the tagging site changed with season. | |
dc.subject | Telemetric | |
dc.subject | Pacific Angel Sharks | |
dc.subject | Squatina | |
dc.subject | nocturnal | |
dc.subject | tag | |
dc.title | A Telemetric Study of the Behavior of Free-Swimming Pacific Angel Sharks, Squatina californica | |
dc.title.alternative | A Telemetric Study of the Behavior of Pacific Angel Sharks | |
dc.type | article | |
dc.abstract.format | onep | |
dc.source.beginpage | 193 | |
dc.source.issue | scas/vol76/iss3 | |
dc.source.issue | 3 | |
dc.identifier.legacy | https://scholar.oxy.edu/scas/vol76/iss3/4 | |
dc.source.endpage | 201 | |
dc.source.peer_reviewed | TRUE | |
dc.source.status | published | |
dc.source.volume | 76 | |
dc.source.journaltitle | Scas: Bulletin of the Southern California Academy of Sciences | |