Short-Term Behavioural Responses of the Great Scallop Pecten maximus Exposed to the Toxic Alga Alexandrium minutum Measured by Accelerometry and Passive Acoustics.
Plos One, 11 8e0160935.
Pecten maximus for sale at the market.
But there are many organisms besides whales that contribute to the soundscape of the ocean.
A new study conducted by Laura Coquereau and her continue reading presents the first use of passive acoustics to monitor changes in the behavior of オンラインスロットアメリカの会社, scallops—in response to high levels of phytoplankton in the water.
Scallops are an integral part of the economy of coastal France; the seasonal algal blooms that have been noted in the region for decades can impact their health.
Depending on the species of algae, a bloom can be relatively harmless; however, some species produce harmful toxins that can accumulate in the tissues of filter feeders like scallops.
From Coquereau et al.
Coquereau and her team collected scallops from local waters near Brest, France.
The animals were brought into the lab, cleaned of epibionts like attached barnaclesand acclimated to their new tanks.
These movements could indicate if the animal was respiring, forcibly expelling water, オンラインスロットアメリカの会社 itself off entirely, or actively swimming.
Scallops were tested in waters ダヴィンチコードゲーム various concentrations of either harm less or harm ful algae in trials lasting 2 hours a piece.
Taken from Coquereau et al.
Big Picture スペード無料でダウンロード study has repurposed passive acoustic monitoring to remotely observe the health of an ecologically and economically important species, and although the methodology has only been tested for short periods in a laboratory, the technology itself requires little modification.
If it were properly adapted, scientists and fishermen alike would オンラインスロットアメリカの会社 from such remote listening.
These behavioral changes were witnessed at the highest concentrations of the harmful algae, indicating the scallops rapidly modify their responses.
However, the highest level tested was fifty times greater than the sanitary threshold established by the French HAB monitoring here />As a result, the first question Coquereau and her colleagues want to pursue is if noticeable differences arise after longer exposure at these lower HAB concentrations.
If such a future study were to show promising results, passive acoustic monitoring could become a new, normal practice in fisheries and conservation alike.
So now that you know we can detect when scallops cough, what other kinds of creatures do you want to listen for in the ocean?
And what do you think their sounds will tell us?
I am a former PhD オンラインスロットアメリカの会社 from the University of Rhode Island, having discovered my love of teaching and informal science education オンラインスロットアメリカの会社 part through OceanBites!
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