Ocean Acidification

Mooring Team

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12 months ago

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Mooring recovery:

The mooring team (Kieran, Gabby and Shannon) started out strong with a successful recovery of the mooring that was deployed August of 2023! After some heavy lifting and lots of help from the Meteor crew (thank you crew!! ), the mooring was recovered just one hour after its release !!!

Top of the mooring at the surface with beautiful Terceira in the background. Foto: Gabrielle Arrieta
Middle of the mooring where the instruments were a bit tangled Foto: Gabrielle Arrieta

Data Evaluation:

Recovery of the mooring resulted in year long (Aug 2023 to July 2024) recordings of biological sounds, active acoustic data and environmental data at a fixed depth. An initial evaluation of the recordings showed sperm whales, dolphins, beaked whales and some baleen whales !!!

Short-beaked common dolphin megapod. Lots of clicks and whistles.

Play sound here: https://drive.google.com/file/d/1NdPQIjul2buW0u833p2R4RDzfV-Ux1Kb/view

The mystery buzz. Buzzes are special noises that whales make underwater. These noises sound like a rapid buzzing or humming. Whales use buzzes to locate and catch their prey, such as fish or squid. The echoes of these sounds allow them to recognize exactly where their prey is located. Buzzes therefore help whales to hunt efficiently.

Play sound here: https://drive.google.com/file/d/12ElYHBzjs70QMz_VsBRalJfoDNjX2zEv/view

The Days Ahead:

The mooring team is working hard on getting the recovered instruments ready to redeploy at the end of the cruise. We are also working on getting a 2nd mooring with double the instruments ready to deploy !!!!

The Mooring Team (Kieran, Gabby and Shannon)

Mooring Team
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