I agree, it sounds a bit like Micronecta scholtzi, a species that both I and Jerome have recorded: see my sample, the 'Water Singer', at the bottom of this page of insect sounds: http://www.bl.uk/listentonature/soundstax/insects.html
Richard Ranft London ----- Original Message ----- From: Jerome Sueur To: Charles S. Henry Cc: [email protected] ; BIOACOUSTICS-L Sent: Tuesday, April 10, 2012 8:52 AM Subject: Re: low-cost hydrophones suggestions Hi, Where was it recorded? This sounds like a Micronecta species. Best regards, Jerome Le 09/04/2012 14:56, Charles S. Henry a écrit : Hi, This is a pretty cool recording. It sounds like a field of goldenrod in mid to late summer! -- maybe these are the sounds of stridulating aquatic beetles (hydrophilids, gyrinids, dytiscids?) and water bugs (corixids, nepids, notonectids?). Very little is known about sound production & communication within such underwater communities. Charlie On 4/8/2012 8:25 AM, [email protected] wrote: Dear all, thanks for your answers so far. I realize I should have detailed more what our intentions and expectations are, what is the other equipment involved etc... All this operation has not nor doesn't pretend a strictly scientific approach+result. Our aim is to record underwater fauna activity in relatively small lakes and ponds. The recording device we are using is a mere Tascam DR100 that delivers 48V phantom power and ideally we'd like to avoid hydrophones needing an additional preamp. We already experimented with cheap and handmade solutions, like piezoelectric transducers, with often quite nice results (well, for our application anyway...) Here's an example of what we have recorded with some piezo underwater mics: http://10111.org/sound/hydro.mp3 (by the way, I've no idea of what's that... could someone tell me please?) That was recorded in a pond. Using the same piezos in a lake, nothing like that was picked up, all was silent (except some far away motorized boats). So, do you think investing in some low-cost hydrophones we may achieve better results than the example above? Will it allow to record some more details? Many thanks G ------------------------------------------------------------------------------ No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.1913 / Virus Database: 2411/4926 - Release Date: 04/10/12
