TURTLE HEARING CAPABILITY BASED ON ABR SIGNAL ASSESMENT
Abstract: Sea turtles have
existed for millions of years. International Union for Conservation of Nature
(IUCN) has reported that the Hawksbill Turtle (Eretmochelys imbricata) is
classified as critically endangered. Turtle excluder device (TED) deployment on
shrimpnet fisheries is needed for turtle conservation.TED using sound technique
is challenge method in fisheries development.The knowledge on turtle hearing
capability is limited. The auditory brainstem response (ABR) assessment is
method to determine turtle hearing capability. Turtle hearing assessment is
basis to design TED. The objective of this paper is to determine turtle hearing
cability by analyze its ABR spectral.The subject is Hawksbill turtle with
number 2 turtles ie: 3 and 2 years. The measurement was taken at Pusat
Pengurusan Penyu (Turtle Management Centre) Padang Kemunting Masjid Tanah
Melaka Malaysia. The results shows that turtle 3 years have peak power
frequencies 50.78, 101.6, 152.3, 304.7, 355.5, 457, and 507.8Hz respectively
whereas the spectral amplitude is ranging 0.03-32.44% spectral. Turtle 2 years
has peak power at 457Hz in whole stimulus frequencies while the spectral
amplitude is ranging 0.01-2.5% spectral.
Penulis: Anton Yudhana, Sunardi,
Jafri Din, Syed Abdullah, Raja Bidin Raja Hassan
Kode Jurnal: jptkomputerdd100042
