Questions tagged [marine-species]

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6 votes
4 answers

Help Identifying Low-Frequency Sound

hoping to get some assistance identifying this sound type. I'm currently in the process of reviewing some data collected from a stationary hydrophone off the southeastern coast of Vancouver Island, ...
wh4l3l1st3n3r25's user avatar
9 votes
1 answer

Mystery Marine Animal Sound off Georgia USA in Western Atlantic

I am trying to learn the source of the sound in the spectrogram below. It has been recorded in early to late winter (January/February) on the shelf (25 m depth) off the US state of Georgia in the ...
TJ Rowell's user avatar
  • 426
13 votes
3 answers

What lossy compression is okay for marine sound?

This answer by Dan Stowell states: Every time I've seen this studied, the MP3 compression makes little-to-no impact on the subsequent analysis. However, the papers I've read are mostly about ...
wizzwizz4's user avatar
  • 383
13 votes
5 answers

Are there conventions for describing the visual representation of sounds on a spectrogram (i.e. names for shape patterns)?

I have a growing set of bioacoustic recordings with accompanying spectrograms from marine animals in an online repository. Currently, the recordings can be searched based on the sound 'name' as ...
Sarah Vela's user avatar
8 votes
1 answer

Unknown upswept pulsed sound recorded offshore Peru

What is this sound from offshore Peru? I recorded this sound offshore Peru and called it the “pacman” sound for obvious reasons. This was recorded from a towed hydrophone array from a large scale ...
Shannon's user avatar
  • 3,605
8 votes
2 answers

Where can I find the official "limits" on what noise levels cause harm in marine mammals in US waters?

The effects of noise on marine life is a huge area of study (it even has its own conference!) but I find I'm very overwhelmed when trying to explain to a non-biologist or non-acoustician what those ...
selene's user avatar
  • 3,463
9 votes
1 answer

Unknown marine mammal call - low frequency - Evans Strait, Hudson Bay

I am working on a marine mammal survey off the coasts of Southampton Island, Hudson Bay. After checking several sound libraries, I have not been able to identify the species that makes the call below. ...
Veronica Coppolaro's user avatar
12 votes
4 answers

What would be a good journal to publish an animal population density estimate using acoustic data?

I have recently submitted a manuscript estimating density of fin whales using passive acoustic data to the Journal of the Acoustical Society of America. This manuscript is largely method based as it ...
selene's user avatar
  • 3,463
13 votes
2 answers

Why does sound from ships propagate better in deep water than in shallow water?

I saw the following graph in a blog post about how shipping noise affects whales. Why does the sound seem to propagate better in deep water than in shallow water? Are there any known marine species ...
416E64726577's user avatar
11 votes
3 answers

Acoustic studies of mixed-species groups?

Mixed-species groups are commonly found throughout the animal kingdom, and often documented using visual surveys (for obvious behavioral reasons). However, I am interested in whether we can study ...
MZiegenhorn's user avatar
24 votes
6 answers

Is there any library that gathers marine species vocalizations?

I would like to automatize the analysis of marine soundscapes by training a neural network that can detect and identify marine species. However, I need a large amount of training data to build such ...