Showing posts with label Organisms. Show all posts
Showing posts with label Organisms. Show all posts

Wednesday, April 25, 2018

What we do in Bioassays class with fish

These are some pics of we've seen:

Fish Acclimatization:

 Fish culture:
 Zebrafish eggs (and some larvae):
 Water quality parameters of the fish tank:
 Some fish eggs and larvae culture (maintenance with algae):

What we do in the Bioassays class with microalgae

Here are some pics of my proudly teaching labour:














Microalgae in solid medium:


This is a collected microalgae by my students:


Tuesday, April 24, 2018

Natural Species collected

I want to show you some natural species collected, planned to use for ecotoxicological assays:

"Gastropodes"

How do you see?

Please, make some comments, thank you!

Friday, April 15, 2016

Microalgae culture

Microalgae cultures for bioassays should remain under controlled conditions, such as:

- Sterile conditions

- Controlled air inlet

- Light darkness

- Temperature

- Nutrient medium

- Oxygen

For maintenance you will need some elements, such as:

- Sturdy glass bottles to sterilize them, cotton and aluminum stoppers, sterilizer or autoclave, lamps, isolated place, pipettes and sterile tips, flame lighter, etc.

Photograph of microalgae kept in my laboratory:


Organisms


Test organisms are used to evaluate their responses to contaminants. These can be native species or model species from other laboratories. Most used examples: - Pseudokirchneriella subcapitata: freshwater microalgae - Zebrafish - Daphnia magna: freshwater cladocean crustacean


I am currently working with these agencies. If you want information from any of them, I can help you in what you need to know.