November 2021

Rising sea temperatures have prompted marine species in the Mediterranean to move deeper into the ocean depths.
Rising sea temperatures have prompted marine species in the Mediterranean to move deeper into the ocean depths.

Mediterranean species move deeper to flee rising sea temps

Due to climate change, the average temperature in the Mediterranean Sea rises by one degree every thirty years, and this rate has been increasing. Because of this, the marine creatures there have been shifting their habitats to the deeper, cooler depths of the ocean.

Researchers reached this conclusion after reviewing research involving the depth distribution of 236 marine species like fish, crustaceans and mollusks collected in previous bottom-trawl surveys.

They discovered that the animals deepened their minimum depth limits in relation to rising sea temperatures.

Schools of planktivorous reef fishes strip the water of plankton, underpinning "sweet spots" of fish biomass production in tropical oceans.
Schools of planktivorous reef fishes strip the water of plankton, underpinning "sweet spots" of fish biomass production in tropical oceans.

Offshore plankton responsible for "sweet spots" at reefs

Plankton and plankton-eating fish play an important part in the productivity of tropical reefs by igniting "sweet spots" of abundance, according to a new study by ARC Centre of Excellence for Coral Reef Studies (Coral CoE) and Research Hub for Coral Reef Ecosystem Functions at James Cook University (JCU).

Divers, Mine Warfare Personnel, HMS Vernon, monument, Royal Navy, Gunwharf, Portsmouth, Rosemary E Lunn, Roz Lunn, military diving news, naval diving news
The Vernon Monument honours all involved in mine warfare, diving, bomb and bomb disposal - past, present and future

A monument for all involved with mine warfare and diving to be officially dedicated

At present, the dedication event at Gunwharf Quay is provisionally pencilled for Friday, 15 July 2022. The summer date has been chosen, because it is anticipated that Covid-19 will be less of an issue. That being the case, it is hoped that current and former Royal Navy Clearance Divers will be allowed to take part in this important occasion. 

Lake of Dreams: The Remaking of Tennessee's Gray Quarry

Gray Quarry, Tennesee, USA. Photo by Gordon Hutchinson
Gray Quarry, Tennesee, USA. Photo by Gordon Hutchinson

Avid diver and professor of computing Dr. Phil Pfeiffer gives an account of how the love of diving, persistence, US$100,000, and a homebrew aerator turned an abandoned quarry in the US state of Tennessee into a thriving dive site for a region that lacked one—and had lost prospective divers for want of a site.

Wisconsin Historical Society archaeologists, assisted by divers from the Dane County Sheriff's Office, recovered the historic canoe from Lake Mendota on November 2, 2021
Wisconsin Historical Society archaeologists, assisted by divers from the Dane County Sheriff's Office, recovered the historic canoe from Lake Mendota on November 2, 2021

1,200-year-old canoe found in Wisconsin lake

Wisconsin Historical Society maritime archaeologists recovered a historic dugout wood canoe from the bottom of Lake Mendota in the US state of Wisconsin yesterday, just a few months after learning of its existence in June 2021. The canoe is a remarkable artifact, made from a single tree.