Tumbling Oysters - Huddl Launch

Author

Affiliation

Steven Roberts

Professor, UW - School of Aquatic and Fishery Sciences

Published

June 17, 2024

Went out to the hatchery for a day 3 drop of commercial spawn. Larvae were in 2 5k tanks. The night before there was a bit of a banjo filter clog but it seems no larvae were lost.

We were able to get 1 Million larvae. Those that were caught on 40um filter. The hatchery kept everything on 70 & 60 um filters which came out to be about 66 million.

Huddls were at about 28C with algae pump set at 30 and algae tank getting 24 liters of algae (topped of with water). Flourometer counts were quite high ~40 when larvae were added but we cannot figure out how it got that high. EDTA (0.04g) was added to 50 gallon header. Commercial group will be left in tanks for 8 days. We will try something similar.

---
title: "Huddl Launch"
description: "First of season day 3 larvae are a go!"
categories: [oyster, aquaculture]
#citation: 
date: 06-17-2024
image: http://gannet.fish.washington.edu/seashell/snaps/Monosnap_ChatGPT_2024-06-17_10-21-36.png # finding a good image

author:
  - name: Steven Roberts
    url: 
    orcid: 0000-0001-8302-1138
    affiliation: Professor, UW - School of Aquatic and Fishery Sciences
    affiliation-url: https://robertslab.info
  #url:  # self-defined
draft: false # setting this to `true` will prevent your post from appearing on your listing page until you're ready!
format:
  html:
    code-fold: FALSE
    code-tools: true
    code-copy: true
    highlight-style: github
    code-overflow: wrap
---

```{r setup, include=FALSE}
knitr::opts_chunk$set(
  echo = TRUE,         # Display code chunks
  eval = FALSE,         # Evaluate code chunks
  warning = FALSE,     # Hide warnings
  message = FALSE,     # Hide messages
  fig.width = 6,       # Set plot width in inches
  fig.height = 4,      # Set plot height in inches
  fig.align = "center", # Align plots to the center
  comment = ""         # Prevents appending '##' to beginning of lines in code analyses
)
```

Went out to the hatchery for a day 3 drop of commercial spawn. Larvae were in 2 5k tanks. The night before there was a bit of a banjo filter clog but it seems no larvae were lost.

![larvae](http://gannet.fish.washington.edu/seashell/snaps/Monosnap_Monosnap_2024-06-17_10-18-50.png){width="75%"}

We were able to get 1 Million larvae. Those that were caught on 40um filter. The hatchery kept everything on 70 & 60 um filters which came out to be about 66 million.

![larvae](<http://gannet.fish.washington.edu/seashell/snaps/Monosnap_Monosnap_2024-06-17_10-06-00.png>){width="75%"}

Huddls were at about 28C with algae pump set at 30 and algae tank getting 24 liters of algae (topped of with water). Flourometer counts were quite high \~40 when larvae were added but we cannot figure out how it got that high. EDTA (0.04g) was added to 50 gallon header. Commercial group will be left in tanks for 8 days. We will try something similar.

![system](http://gannet.fish.washington.edu/seashell/snaps/Monosnap_Monosnap_2024-06-17_10-17-35.png){width="75%"}