Record Details

<i style="mso-bidi-font-style: normal"><span style="font-size:15.0pt;mso-bidi-font-family:"Times New Roman"" lang="EN-GB">Terapon theraps</span></i><span style="font-size:15.0pt;mso-bidi-font-family: "Times New Roman"" lang="EN-GB"> chorus observed in shallow water environment in the southeastern Arabian Sea </span>

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Title Terapon theraps chorus observed in shallow water environment in the southeastern Arabian Sea
 
Creator Mahanty, M.M.
Kannan, R.
Harikrishanan, C.
Latha, G.
 
Subject Shallow waters
Chorus
Terapon theraps
Spawning
 
Description 150-155
Long term acoustic
measurements have been obtained from shallow water environment in the southeastern
Arabian Sea (SEAS) off Cochin during the period of January-May 2011. This is
the first time record in Indian seas. Based on the spectrogram analysis, call
type is found to be chorus, where many fishes called en masse. The chorus produced by the fish ‘Terapon theraps’ sounded like ‘trumpet’ and displayed unique call
characteristics throughout the period. They produced daily patterns with the
highest activity level before dawn and after dusk. Numbers of trumpet chorus
were maximal at the beginning of the January to end of March, but ceased down
by the May. The fish chorus for this site reached  ~30 dB above ambient noise level at the
frequency of their spectral maximum. This chorus is believed to be associated
with spawning. Visual surveys are conducted separately to confirm the presence
of Terapon theraps contiguous to
SEAS.
 
Date 2016-07-04T07:15:42Z
2016-07-04T07:15:42Z
2015-02
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/34623
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.44(02) [February 2015]