In reality, sounds come through the hydrophone (underwater microphone) not one by one or species by species, but as a mixed-up cacophony. To confirm their field observations, researchers replay and amplify the recordings in the lab to isolate and identify the various sound-producing species.

Read more about a research project on spawning activities of spotted seatrout, during which scientists recorded this and other underwater sounds.

Tags:   seatrout perch bioacoustics hydrophone research fish

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Cusk eels (Ophidion barbatum), like species in the sciaenid (drum) family, are sound producers. When these fish gather in large numbers, called aggregations, their sound pattern is more call-and-response than overlapping, as with the drums.

Read more about a research project on spawning activities of spotted seatrout, during which scientists recorded this and other underwater sounds.

Tags:   eels bioacoustics hydrophone Ophidion barbatum research fish

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Like spotted seatrout and other sciaenid (drum) species, sand seatrout (Cynoscion arenarius) form large groups called aggregations and, using specialized sonic muscles that they pulse against their swim bladders, also produce a distinctive sound as part of their spawning behavior.

Read more about a research project on spawning activities of spotted seatrout, during which scientists recorded this and other underwater sounds.

Tags:   perch bioacoustics hydrophone Bairdiella chrysoura research fish

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Many species in the family Sciaenidae that are native to Tampa Bay waters are sound producers. Here are the courtship sounds of red drum, Sciaenops ocellatus, which begin spawning in large numbers in midautumn.

Passive acoustics, a noninvasive method of learning about fish by studying their sounds, allows researchers to gain knowledge about fish behavior without having to disrupt their activities or sacrifice fish. For an example of how this technique is used by researchers at FWC's Fish and Wildlife Research Institute, view the article "Mapping Spawning Habitat of Spotted Seatrout (Cynoscion nebulosus) in Tampa Bay."

Tags:   Red Drum bioacoustics hydrophone Sciaenops ocellatus research fish

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Large spawning groups of black drum (Pogonias chromis), called aggregations, produce characteristic sounds as part of their spawning behavior, usually beginning in January and lasting through early spring.

Passive acoustics, a noninvasive method of learning about fish by studying their sounds, allows researchers to gain knowledge about fish behavior without having to disrupt their activities or sacrifice fish. For an example of how this technique is used by researchers at FWC's Fish and Wildlife Research Institute, view the article "Mapping Spawning Habitat of Spotted Seatrout (Cynoscion nebulosus) in Tampa Bay."

Tags:   Black drum bioacoustics hydrophone Pogonias chromis research fish

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