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need to rethink if we should put documents in a github repo or keep in google slides and link
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LynneH32 committed Nov 22, 2024
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12 changes: 7 additions & 5 deletions content/Hardware.qmd
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Expand Up @@ -7,7 +7,7 @@ subtitle: "SEFSC Passive Acoustic Ecology Program"

While ship surveys allow us to study marine mammals over a broad area during a period of a few months, sometimes we want to study their occurrence at specific locations over extended periods of time. We do this by deploying autonomous moored recording instruments that remain on the seafloor for predetermined time periods.

Autonomous recorders include HARPs (High-frequency Acoustic Recording Packages), MARUs (Marine Acoustic Recording Units), and SoundTrapsTM. They are deployed in areas of interest and are capable of recording sounds for up to 18 months at a time. The amount of time that an instrument can record over depends on numerous factors, including the sampling frequency and duty cycle, and how much data storage and battery capacity the instrument has. When it is time to change the battery and data storage disks, we head out to sea to recover the instruments and collect the data recordings. Then we redeploy them to continue the autonomous sampling.
Autonomous recorders include [HARPs (High-frequency Acoustic Recording Packages)](https://www.cetus.ucsd.edu/technologies_HARP.html), [MARUs (Marine Acoustic Recording Units)](https://www.birds.cornell.edu/ccb/rockhopper-unit/), and [SoundTrapsTM](https://www.oceaninstruments.co.nz/product/soundtrap-st600-std-long-term-recorder/). They are deployed in areas of interest and are capable of recording sounds for up to 18 months at a time. The amount of time that an instrument can record over depends on numerous factors, including the sampling frequency and duty cycle, and how much data storage and battery capacity the instrument has. When it is time to change the battery and data storage disks, we head out to sea to recover the instruments and collect the data recordings. Then we redeploy them to continue the autonomous sampling.

These moored recorders provide data on the spatial distribution of whales and dolphins over time. They are useful for understanding seasonal and longer term occurrence and movement patterns. In some cases, they can be used to estimate the density of whales and dolphins and to inform assessments of abundance and population trends.

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These data can be used to estimate the spatial distribution, density, and abundance of toothed whale and dolphin species. They offer complementary data to visual observations for use in marine mammal stock assessments. Additionally, the associated visual and acoustic detections can help us learn what call types are produced by each species.

![](content/images/towedarray.png)
*A hydrophone array being towed behind the ship. This array is towed 300 m behind the ship and usually stays submerged between nine and 12 meters (30-40 feet) depth. We use a custom-built modular array capable of recording a broad range of sound frequencies. Credit: NOAA Fisheries / Amanda Debich
![](images/towedarray.png)

*A hydrophone array being towed behind the ship. This array is towed 300 m behind the ship and usually stays submerged between nine and 12 meters (30-40 feet) depth. We use a custom-built modular array capable of recording a broad range of sound frequencies. Credit: NOAA Fisheries / Amanda Debich*


## Drifting Acoustic Recorders
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The tags attach to the whale’s back via suction cups and remain on the whale for a few hours to a few days. Once they detach from the whales, we use satellite and VHF transmitters to locate and recover them and access the recorded data. These dive data, combined with acoustic recordings from the tag, give us insight into the acoustic behavior of these animals. They help us learn about the animals’ vocal cue rates and how the calls they produce relate to their behavior underwater. This helps us to interpret the data we collect with other passive acoustic tools.

![](content/images/Acousondetag.png)
*An AcousondeTM tag, attached to a whale via suction cups, provides acoustic and kinematic data to learn about whale calling and dive behavior. Credit: NOAA Fisheries (MMPA Permit #21938)
![](images/Acousondetag.png)

*An AcousondeTM tag, attached to a whale via suction cups, provides acoustic and kinematic data to learn about whale calling and dive behavior. Credit: NOAA Fisheries (MMPA Permit #21938)*


<!-- A hardware section is required and should include the following information; -->
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2 changes: 1 addition & 1 deletion content/LabManagement.qmd
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Expand Up @@ -7,4 +7,4 @@ A lab management section is required and should include the following informatio

- Safety
- Inventory
- Hardware
<!-- - Hardware -->
3 changes: 2 additions & 1 deletion content/Onboarding.qmd
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Expand Up @@ -9,7 +9,8 @@ subtitle: "SEFSC Passive Acoustic Ecology Program"

### Sperm whale analysis

[Getting Started - Sperm Whale 3D Tracking Project](https://docs.google.com/document/d/1dZIGURhCEpHqiqKNrRGJXT7Fx7sGwGP6/edit?usp=drive_link&ouid=108853723995482129268&rtpof=true&sd=true)
[Getting Started - Sperm Whale 3D Tracking Project]()
<!-- (https://docs.google.com/document/d/1dZIGURhCEpHqiqKNrRGJXT7Fx7sGwGP6/edit?usp=drive_link&ouid=108853723995482129268&rtpof=true&sd=true) -->


This page is optional but can be used as a landing page for new lab members. You can include introductory information, links to must read papers, new hire resources, goal setting information, etc.
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2 changes: 1 addition & 1 deletion index.qmd
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Expand Up @@ -12,7 +12,7 @@ page-layout: full

The Passive Acoustic Ecology Program conducts a variety of [research projects](https://www.fisheries.noaa.gov/science-data/passive-acoustic-research-southeast-fisheries-science-center) that use passive acoustics to assess populations and improve our understanding of cetaceans in the Gulf of Mexico and U.S. waters of the Western Atlantic. We are part of the Marine Mammal and Turtle Division at NOAA's Southeast Fisheries Science Center in Miami, Florida.

This lab manual serves as the go-to handbook for the behind-the-scenes information to support our science.
This lab manual serves as the go-to handbook for the behind-the-scenes information to support our science. It serves as a document for keeping institutional knowledge by providing information on various procedures, field methods, analyses, inventories, and available resources, among other things.

## Team Members

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