Do I know anyone here with a saltwater reef tank? Ever had to deal with a flatworm infestation?
I recently got some biopsies from Caribbean Acropora that were losing tissue and dying. These guys are full of flatworms, and while there are several species of flatworm described on corals in the Pacific and in aquaria on Pacific species, I can't find any references that mention a Caribbean variety, or even an Atlantic one, at all. It's pretty difficult to get an ID beyond "flatworm" from routine histology but I might get tissue to sequence using laser capture microdissection that I can compare to other known species.
I think these might be escapees from someone's hobby aquarium, just possibly. It's also possible that they are a native species no one noticed before but the fact that they are such a big aquarium pest has me worried.
This is why we should never dump an aquarium into wild waters or release any kind of pet that isn't native, or even that is but has had contact with non-native species, into the wild. You never know what else you're unleashing. You might be killing coral reefs.
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Sps about to take off in this tank 😍 #coralsdaily #spscoral #corals #acropora #montipora #tort #pocillopora https://www.instagram.com/p/Cga0XOrLtBs/?igshid=NGJjMDIxMWI=
My current progress for my biological drawings!! The scale and general accuracy is questionable but. Its only worth 30% of the module so its ok! The crab was missing a leg and an eye which was kinda sad :(
Please do not comment on any labels i got wrong/anything wrong with the drawing in general , I'll ignore it, as I have to be careful with academic integrity I do not want to get told off etc :)
A Tale of Two Corals (in the Anthropocene): The past summer’s record hot temperatures were devastating to South Florida’s reefs, wiping out a significant percentage of critically important staghorn corals (Acropora cervicornis aka ACER). Staghorn is a keystone species, and the primary coral grown by restoration practitioners in the Caribbean. They grow fast, but can die a lot faster.
In 2009 we discovered a unique strain of staghorn coral that had naturally recruited to one of the breakwaters on nearby Fisher Island. Since 2020 we’ve been helping NOAA cultivate fragments of this urban ACER on an experimental nursery adjacent to the Camera.
In conjunction with University of Miami’s Rescue a Reef program we’ve been using the CCC site to test the resilience of staghorn corals they grow offshore. Like other FL restoration orgs, Rescue a Reef saw many of their outplanted ACER die this past summer. Finding strains that can withstand future heat stress is critical for long term success in restoring our reefs.
As seen in this 7 month timelapse, a fragment of urban ACER (we’ve dubbed the ‘Ventura’ strain) not only didn’t bleach, but grew at a significant rate. The 2nd staghorn, one of the offshore strains, began strong, but quickly bleached, died, and then was eroded away by parrotfish.
In early August, UM transported fragments of the ‘Ventura’ strain offshore where the water was cooler for safekeeping. While the ‘Ventura’ strain has proven successful in the nearshore environment, it is important to see how it fares in deeper water before amplifying it for restoration purposes. We are pleased to hear from Rescue a Reef that it is thriving in its new environment!
Preliminary analysis of the ‘Ventura’ strain shows it is hosting Durusdinium glynni zooxanthellae, a symbiont known to provide massive corals with thermal tolerance. However, its presence in Caribbean staghorn corals is previously undocumented. Could ACER ‘Ventura’ help restore Miami’s inshore and offshore reefs? Can it confer resilient genetics to future offspring by spawning it in a lab? These are some of the exciting questions we seek to answer in the future!