The (34,000 Swedish Krona) package consists of a SE7EN E-module, two HP-sensors and a HUD.

The deadline for this upgrade is 24th December 2017 and it cannot be combined with any other offers. The old MKVI e-module must be returned to Poseidon and the owner will also need to either buy a M28 or a Paddle with a can connector.

Poseidon has also confirmed that there will be a minor upgrade for current SE7EN owners so that their rebreathers are solid state sensor ready.

Admittedly, the idea of protecting seagrass is not as “glamorous” as protecting the rainforest, but this marine vegetation is essential to both marine life and humans. A new study by scientists from Cardiff University, Swansea University and Stockholm University, and published in the Fish and Fisheries journal, highlights the global importance of seagrass to fisheries.

“Wherever you find seagrass and people, there is most certainly fishing,” said Dr Leanne Cullen-Unsworth, from Cardiff University’s Sustainable Places Research Institute.

We’ve all seen those huge schools of fish that move as one and coordinate their movements so perfectly. New research has come up with a way to map the chain of direct interaction in such schools of fish, discovering that the fish pay attention to one or two of their neighbours at a time when the school moves as a group.

The initial purpose of the bill, called The Access for Sportfishing Act of 2016, was to prevent national parks from trying to protect fish in waters within state jurisdiction, and in June, Senator Bill Nelson, from Florida, added the ban on shark feeding diving in federal waters. The bill specifies that it is all right to feed sharks for the purpose of killing them, but not if you want to watch the shark. Thus it is the motive for the act of shark feeding, rather than the act itself, that is at issue.