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Behaviour of the abyssal grenadier, Coryphaenoides yaquinae , monitored using ingestible acoustic transmitters in the Pacific Ocean
Author(s) -
Priede I. G.,
Smith K. L.
Publication year - 1986
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.1986.tb05011.x
Subject(s) - abyssal zone , hydrophone , oceanography , fishery , biology , population , range (aeronautics) , fish measurement , target strength , fish <actinopterygii> , acoustics , geology , physics , engineering , demography , sociology , aerospace engineering
Scavenging grenadier fishes, Coryphaenoides yaquinae , were tracked with ingestible acoustic tags at 5800 m depth in the central North Pacific. A free‐fall vehicle comprising a video camera and recording system together with a hydrophone, ultrasonic acoustic receiver and recorder was deployed on the sea bed. Special acoustic transmitters (75 kHz) were wrapped in bait and attached below and in view of the camera. Grenadiers were observed to ingest the baited transmitters and move away to ranges of over 100 m within 5h, some returning several times to within range of the receiving system. Voluntary ingestion of transmitters by this grenadier demonstrates that an inacessible population can be studied and provides a basis for development of automated tracking systems for long‐term monitoring of individual deep‐sea fish.