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Drifter or homebody? Study first to show where whitespotted eagle rays roam
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Environmental News Network - Crunch! Shell-Crushing Sounds Revealed In A Large Marine Predator
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VIDEO: Turn up the sound! Using the whitespotted eagle ray and underwater acoustic recorders, a study is the first to characterize how they consume hard-shelled mollusk prey like clams in a. view more
Credit: Florida Atlantic University s Harbor Branch Oceanographic Institute Shell-crushing - exactly what it sounds like - is a predatory mode used by numerous marine life from crabs to octopuses to large fishes and mammals when they eat hard-shelled mollusks like clams, oysters and conchs. These predators have to break apart the shell using robust claws or fortified jaws to access the prey s soft tissues.
Despite its prevalence in the marine environment, this feeding behavior has remained elusive to study remotely, particularly for larger marine animals that destroy shells almost completely, leaving behind little trace. Moreover, because they are highly mobile, scientists have difficulty in directly observing their foraging habits, which is why the ecolog
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‘Hail to the queen’: Saving the Caribbean queen conch
[Many thanks to Peter Jordens for bringing this item to our attention.] Gisele Galoustian (Florida Atlantic University) highlights Dr. Megan Davis’s extensive research into the science and art of growing queen conch and her collaboration with Conservación ConCiencia in Puerto Rico to assist with stock enhancement fisheries of the conch.
With an estimated lifespan between 25 to 40 years, the queen conch (
Strombus gigas) is a prized delicacy long harvested for food and is revered for its beautiful shell. Second only to the spiny lobster, it is one of the most important benthic fisheries in the Caribbean region. Unfortunately, the species faces a challenge of survival: how to endure and thrive, as populations are in a steady state of decline from overfishing, habitat degradation and hurricane damage. In some places, the conch populations have dwindled so low that the remaining conch cannot find breeding par
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