This video says about itself:
21 June 2013
Lionfish spotted with the submarine spotted at depths of approximately 300feet deep. These were spotted on a sunken boat where many of them created their habitat.
From IMARES research institute in Wageningen, the Netherlands, last year:
The marine biologists Erik Meesters and Lisa Becking of IMARES Wageningen UR have explored Bonaire‘s deep reef using a submarine. They found unusual animals, fossil reefs, and even archaeological artefacts.
The goal of the Bonaire Deep Reef Expedition is to take an initial inventory of the habitat and biodiversity of the deep reef.
On the morning of 18 May 2014, Lisa Becking was interviewed by Vroege Vpgels radio in the Netherlands about the results of the expedition. Photos are here.
Ms Becking said the discoveries included 13 sponge species, new for science; and two sponge species already known from elsewhere, but not from Bonaire waters yet. They found 30 sponge species, so half was new, either for Bonaire, or for science.
They also found one new shrimp species and two new fish species.