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Scientists at the University of Exeter studying rockpool prawns (Palaemon elegant) have discovered that they exhibit different personalities, and those that are "shy" tend to fare better when competing for food.

The findings of their study was published in Volume 140 of the journal Animal Behaviour.

In the study, the prawns, all taken from the Gyllyngvase beach in Falmouth, were tagged and tested on their level of boldness by placing them in an unfamiliar tank and observing how much they explored and ventured to the centre.

The booklet had ten chapters that covered various topics including the guideline, air supply planning, panic, lights, emergency procedures and physiological emergencies.

Since it was published Blueprint has certainly saved lives.

According to Wallin's report, UMEX (Underwater Exploration Team) found and identified Sch-317 yesterday, 2 May 2018.

This Soviet submarine lies at 78 meters / 255 ft between Gogland (Suursaari) and Tuiters (Tytärsaari) in the east part of the Gulf of Finland in Russian waters.

Sch-317 was sunk in 1942 by a German mine after surviving several attacks by allies that included bombing the Swedish coast.

The submarine's final resting place is near her home port.

When air-breathing mammals dive, their lungs compress. The ultra-deep-diving feats of some marine mammals go beyond our current understanding of respiratory physiology and lung mechanics. But historically, researchers assumed the chest structure of marine mammals meant their lungs compressed automatically at great depths, an adaptation that prevented them from taking up excess nitrogen and getting the bends.

The Bajau are an indigenous people in parts of Indonesia renowned for their breath-holding ability when diving for food. They have been known to dive up to 70 metres using nothing more than a set of weights and a pair of wooden goggles.

Previously, scientists have speculated on whether dive capacity is related to spleen size, though no formal studies have been done on humans on a genetic level.

Our good colleague at Wetpixel, Adam Hanlon, recently reported that the extremely popular Eneloop rechargeable batteries are now not recommended for underwater strobe use. Panasonic, who owns Eneloop, specifically states on its website "Please do not use Eneloop Ni-MH batteries in underwater lights or other airtight appliances." Adam mentions it could be interesting if the strobe manufacturers have something to say, otherwise we’ll all keep using Eneloops as usual. It could indeed.

Tritonia Scientific has taken over the operational management of the chamber after the Scottish Association for Marine Science (SAMS) indicated it could no longer support the facility.

This unit provides emergency treatment for divers who are suffering from decompression illness.