Scuba diving - Science topic

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.

Here's a successful example from the UK

Hi Arnaud,

It depends on your research question. You apply what is most applicable, SCUBA for shallow water and remote and manned subs for deep. I would do both. If your career requires you to go deeper, then you need to find another way to continue working in shallow water. Best wishes, Bert

Personally I have no experience with VS patients who dive thus the following is only my insights based on the pathophysiology of this SOL.

VS located in the IAC or CPA is slow growing and is almost never associated with acute vertigo. One exception is the uncommon intralabyrinthine schwannoma which might cause meniere like attacks.  I believe diving limitations in VS should be considered according to the status of hearing and vestibular function. Mostly well compensated unilateral vestibulopathy, which is usually the case in VS,  would not present particular hazard to the diver. If the subject has complete deafness due to the VS this would be a case of "only hearing ear" and I would not recommend diving.

I hope this help.

Avi Shupak    

Hi Phillip,

You should check your dive profiles: 3 x 30 m dives every day for 2 weeks generate high probability for DCI. Fatigue is one of DCI clinical symptoms...

Good luck and be careful.

Enjoy:

Dear Ferrucio

The following 2 book chapters are devoted to techniques in use for biological study by SCUBA diving: 

Hiscock, K. 1987. Chapter 9: Subtidal rock and shallow sediments using diving. p. 198-237 in: Baker J.M. & W.J. Wolff (eds). Biological surveys of estuaries and coasts. Estuarine and brackish-water sciences association handbook, Cambridge University Press, Cambridge.

Munro, C. 2005. Chapter 4: Diving systems. p. 112-159 in: Eleftheriou, A. & A. McIntyre (eds) 2005. Methods for the study of marine benthos, 3rd ed. Blackwell Science Ltd, Oxford.

Also on this subject:

Fager, E.W., A.O. Flechsig, R.F. Ford, R.I. Clutter & R.J. Ghelardi 1966. Equipment for use in ecological studies using scuba. Limnol. & Oceanogr. 11 (4) 503-509.

Stoddart, D.R. & R.E. Johannes 1978. Coral reefs: research methods. Monographs on oceanographic methodology 5. Unesco, Paris.

In German, somewhat outdated but with a lot of references:

Riedl, R. 1967. Die Tauchmethode, ihre Aufgaben und Leistungen bei der Erforschung des Litorals; eine kritische Untersuchung. Helgol. Wiss. Meeresunters. 15 (1-4) 294-352.

Diving with a mask can induce barotrauma, if the negative pressure differential between the air inside the mask and the water outside the mask is not equalized (forcing the eye outwards). This trauma would, I imagine, be more likely to cause a retinal detachment in those already predisposed to such a condition (e.g. those with previous retinal detachment, high myopia, associated systemic conditions (see more below), etc.). Obviously if your friend has any intra-ocular gas (e.g. post-surgery), then changes in the volume of this bubble can be another cause of trauma, and they should not dive whilst there is any gas bubble remaining in the eye. This is an excellent review of SCUBA diving and possible ophthalmic complications:

Butler Jr FK. Diving and hyperbaric ophthalmology. Survey of Ophthalmology. 1995;39(5):347-66.

Although I am not aware of any case reports in the literature of SCUBA diving causing retinal detachment directly, there is a report of a SCUBA diver losing sight in one eye due to sinus barotrauma causing a secondary orbital cellulitis (Bellini, M. J. Blindness in a diver following sinus barotrauma. The Journal of Laryngology & Otology 101.04 (1987): 386-389), and orbital cellulitis has itself been reported to cause retinal detachment. Systemic associations in those people who have had a retinal detachment should also be considered before SCUBA diving; for example, people with Marfan’s syndrome have an increased risk of retinal detachment, and also have an increased incidence of lung abnormalities including a spontaneously collapsed lung (pneumothorax) – the large changes in pressure in the first few meters of a dive may increase this risk further.

Hope that helps!