scholarly journals Sound production by red hind Epinephelus guttatus in spatially segregated spawning aggregations

2010 ◽  
Vol 10 (2) ◽  
pp. 149-154 ◽  
Author(s):  
D Mann ◽  
J Locascio ◽  
M Schärer ◽  
M Nemeth ◽  
R Appeldoorn
Keyword(s):  
Sound Production ◽  
Spawning Aggregations ◽  
Red Hind ◽  
Epinephelus Guttatus

scholarly journals Red hind Epinephelus guttatus Vocal Repertoire Characterization, Behavior and Temporal Patterns

2020 ◽  
Vol 31 ◽  
pp. GCFI31-GCFI41
Author(s):  
Carlos M. Zayas Santiago ◽  
Richard S. Appeldoorn ◽  
Michelle T. Schärerer-Umpierre ◽  
Juan J. Cruz-Motta
Keyword(s):  
Low Frequency ◽  
Temporal Patterns ◽  
Spawning Aggregations ◽  
Red Hind ◽  
In Captivity ◽  
In The Wild ◽  
Epinephelus Guttatus ◽  
Spatio Temporal ◽  
Passive Acoustic ◽  
Female Call

Passive acoustic monitoring provides a method for studying grouper courtship associated sounds (CAS). For Red Hind (Epinephelus guttatus), this approach has documented spatio—temporal patterns in their spawning aggregations. This study described vocalizations produced by E. guttatus and their respective behavioral contexts in field and laboratory studies. Five sound types were identified, which included 4 calls recorded in captivity and one sound recorded in the wild, labeled as Chorus. Additionally, the Grunt call type recorded was presumed to be produced by a female. Call types consisted of variations and combinations of low frequency (50—450 Hz) pulses, grunts and tonal sounds in different combinations. Common call types exhibited diel and lunar oscillations during the spawning season, with both field and captive recordings peaking daily at 1800 AST and at 8 days after the full moon.

Reproduction in an aggregating grouper, the red hind,epinephelus guttatus

1994 ◽  
Vol 41 (1-4) ◽  
pp. 269-286 ◽  
Author(s):  
Yvonne Sadovy ◽  
Aida Rosario ◽  
Ana Román
Keyword(s):  
Red Hind ◽  
Epinephelus Guttatus

Neobenedenia pargueraensis n. sp. (Monogenea: Capsalidae) from the Red Hind, Epinephelus guttatus, and Comments about Neobenedenia melleni

1992 ◽  
Vol 78 (3) ◽  
pp. 399 ◽  
Author(s):  
William G. Dyer ◽  
Ernest H. Williams ◽  
Lucy Bunkley-Williams
Keyword(s):  
Red Hind ◽  
Epinephelus Guttatus

scholarly journals Acoustic monitoring indicates a positive relationship between calling frequency and spawning in captive spotted seatrout (Cynoscion nebulosus)

2016 ◽  
Author(s):  
Eric W Montie ◽  
Matt Hoover ◽  
Chris Kehrer ◽  
Justin Yost ◽  
Karl Brenkert ◽  
...  
Keyword(s):  
Sound Production ◽  
Spatial Scales ◽  
Reproductive Activity ◽  
Acoustic Monitoring ◽  
Spotted Seatrout ◽  
Light Cycle ◽  
Cynoscion Nebulosus ◽  
Underwater Sound ◽  
Spawning Period ◽  
Spawning Aggregations

Background: Fish sound production is widespread throughout many families. Agonistic and courtship behaviors are the most common reasons for fish sound production. Yet, there is still some debate on how sound production and spawning are correlated in many soniferous fish species. In the present study, our aim was to determine if a quantitative relationship exists between calling and egg deposition in captive spotted seatrout (Cynoscion nebulosus). This type of data is essential if scientists and managers plan to use acoustic metrics to identify spawning aggregations over large spatial scales and monitor reproductive activity over annual and decadal timeframes.Methods: Wild caught spotted seatrout were held in three laboratory tanks equipped with long-term acoustic loggers (i.e., DSG-Oceans) to record underwater sound throughout an entire, simulated reproductive season. Acoustic monitoring occurred from April 13 to December 19, 2012 for Tank 1 and from April 13 to November 21, 2012 for Tanks 2 and 3. DSG-Oceans were scheduled to record sound for 2 min every 20 min. We enumerated the number of calls, calculated the received sound pressure level (SPL in dB re 1 µPa; between 50 and 2000 Hz) of each 2 min ‘wav file’, and counted the number of eggs every morning in each tank.Results: Spotted seatrout produced three distinct call types characterized as “drums”, “grunts”, and “staccatos”. Spotted seatrout calling increased as the light cycle shifted from 13.5 to 14.5 h of light, and the temperature increased to 27.7oC. Calling began to decrease once the temperature fell below 27.7 oC, and the light cycle shifted to 12 h of light. These captive settings are similar to the amount of daylight and water temperatures observed during the summer, which is the primary spawning period of spotted seatrout. Spotted seatrout exhibited daily patterns of calling. Sound production began once the lights turned off, and calling reached maximum activity approximately 3 h later. Spawning occurred only on evenings in which spotted seatrout were calling. Significantly more calling and higher mean SPLs occurred on evenings in which spawning occurred as compared to evenings in which spawning did not occur. Spawning was more productive when spotted seatrout produced more calls. For all tanks, more calling and higher SPLs were associated with more eggs released by females.Discussion: The fact that more calling and higher SPLs were associated with spawns that were more productive indicates that acoustic metrics can provide quantitative information on spotted seatrout spawning in the wild. These findings will help us to identify spawning aggregations over large spatial scales and monitor the effects of noise pollution, water quality, and climatic changes on reproductive activity using acoustic technology.

Social system of an inshore stock of the red hind grouper,Epinephelus guttatus (Pisces: Serranidae)

1994 ◽  
Vol 41 (1-4) ◽  
pp. 415-422 ◽  
Author(s):  
Douglas Y. Shapiro ◽  
Graciela Garcia-Moliner ◽  
Yvonne Sadovy
Keyword(s):  
Social System ◽  
Red Hind ◽  
Epinephelus Guttatus
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