Anesthesia in fish

Students are expected to prepare by before the lectures by use of the following material

For LAS 301

For LAS 303

Title: Introduction to anaesthesia in Fish and Aquatic species
Description: Basic principles for anesthesia




MP4 with Smart Player (480p)

42,7 MB


MP4 with Smart Player (720p)

60,0 MB


MP4 with Smart Player (1080p)

68,5 MB


MP3 (Audio Only)

24,5 MB



Anesthesia and pain in fish (PDF)

Common drugs used in fish anesthesia (PDF)

Administration of drugs to fish (PDF)


Fish anesthesia - demonstrations Compendium for fish researchers (2011) chapter 4 and 5
General anesthesia Sedation of fish
  See questions below


In the lecture in LAS 303 we will discuss the following cases:


a) What observations might indicate that fish experience pain?
b) What is the mechanism of action for metacain and what is the effect on the fish?
c) How do buffering of metacain affect anesthesia induction time in fresh water?
d) What is the effect of isoeugenol on the fish?
e) What are the effect of lidocain and bupivacain and what are they used for?
f) A fish weighing 2 kg is to be given 50mg/kg of 5% a anesthesia solution. How many ml is it to be given?
g) Will the volume in f) be ok to administer i.m. or i.p.?

Short answers - Anesthesia protocols

1. Suggest anesthesia alternatives for procedures like handling or moving fish
2. Suggest anesthesia alternatives for fish skin scrape & gill biopsy
3. Suggest anesthesia alternatives for abdominal surgery (like in the example in the movie in fish

4. What are the reasons for selecting different anesthesia for the different cases in 1, 2 and 3 with regard to achieve a balanced anesthesia?