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AHuffmyer committed Dec 18, 2024
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Expand Up @@ -6,11 +6,11 @@ categories: RobertsLab_Oysters WSG_USDA
tags: Cgigas Oyster Survival Growth
---

Assessment of oyster survival and growth at Westcott Shellfish. This assessment is our fall time point. We will assess again in the spring.
Today Grace and I did an assessment of oyster survival and growth at Westcott Shellfish. This assessment is our fall time point. We will assess again in the spring.

# Overview

We outplanted oysters at Westcott this past summer (June) after conducting sub-lethal stress hardening treatments (daily or weekly exposure to elevated temperatures; Efforts B and D). We assessed growth and survival in September and again today.
We outplanted oysters at Westcott this past summer (June) after conducting sub-lethal stress hardening treatments (daily or weekly exposure to elevated temperatures; Efforts B and D).

More information on this project can be found in the [GitHub repo](https://github.com/RobertsLab/project-gigas-conditioning) and my past [notebook posts](https://ahuffmyer.github.io/ASH_Putnam_Lab_Notebook/categoryview/#wsg-usda).

Expand All @@ -33,13 +33,13 @@ Size data, mortality, and notes regarding bags or cage condition were made in th

Here is an example of images from today:

![oyster size image]()
![oyster size image](https://github.com/RobertsLab/project-gigas-conditioning/blob/main/data/outplanting/Westcott/20241217_images/bag036_20241217.jpeg?raw=true)

All images of oysters and notebook pages with size data are [stored on GitHub](https://github.com/RobertsLab/project-gigas-conditioning/tree/main/data/outplanting/Westcott/20241217_images).

# Temperature loggers

I downloaded all five loggers today and left them in their original location. Each logger has used only 19% of memory, so I did not clear the memory and kept them deployed at their current settings.
We downloaded all five loggers today and left them in their original location. Each logger has used only 19% of memory, so we did not clear the memory and kept them deployed at their current settings.

Files were downloaded and added [to GitHub here](https://github.com/RobertsLab/project-gigas-conditioning/tree/main/data/environmental/loggers/westcott).

Expand All @@ -51,17 +51,17 @@ Loggers were left attached in their same cages, they were not fouled and did not
- Logger 22023405: UW-SR12
- Logger 22023412: UW-SR19

Here is the temperature data from the start of the outplanting process:
Here is the temperature data from the start of the outplanting process after downloading data today:

![temperature plot]()
![temperature plot](https://github.com/RobertsLab/project-gigas-conditioning/blob/main/figures/environmental/westcott-loggers.png?raw=true)

# Next steps

Grace is going to work on the following steps:
We are now going to work on the following steps:

- Measure oyster size from images
- Count oysters in each cage for survival
- Run models to predict volume from length and width measurements from subset of manually measured oysters
- Analyze growth as percent growth from intial time point

We will assess outplants again in the spring, when the farm typically sees some inital mortality.
We will assess outplants again in the spring.

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