It totally depends on the species and habitat. If it is a commercial species, you can catch it in the fishing season with the fishermen who usually do bottom trawling. Or find the species you are looking for in cruise ship surveys. Depending on the size of the species, you may be able to use the substrate methods or Electrofishing. But the safest way and environmentally friendly is the suggestion of Curt Fiedler, ie fish traps with small mesh walls with shrimp diet.

Right, spp. matters, their favorite food is used as bait. Trap/catch them using appropriate mesh size hand or trawl net.

You should use a plactic bag filled with fresh water and oxygen (volume ratio about 1:2), then tight it with a rubber band. If the temperature is high, cooling process is needed, such as with ice bottle at the outside of the bag.

G. Curt Fiedler

Hamed Ghanaatian , I am not sure if its a commercial species, the only way for us to gain access to the sampling site is through scuba diving. By the way, to which substrate method are you referring to?

Nuhu Danladi Ago , as it was reported only a few times in the literature. I will come back with the genus and species. What is the most suitable bait for suspension feeders in the market?

Chunsheng Liu , do you have any papers in mind using your protocol?

Hamed Ghanaatian studied species are Hemimysis speluncola and H. margalefi

Sure! Here are some general guidelines for sampling live shrimps via scuba diving in a marine habitat:

It's important to note that specific protocols may vary depending on the species of shrimp, the habitat, and other factors, so be sure to consult with your advisor or other experts in the field for more detailed guidance.