How To Protect The Ocean

SUFB 1085: Are Swordfish Killing Sharks In The Mediterranean?


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We all know, love, and sometimes fear sharks for their predatory nature; however, we never really feat a swordfish. We tend to be in wonder and ah when with see this fish in the wild. Maybe it is because we only see them when they are being caught by recreational fishermen when they go deep-sea fishing. Swordfish are predators and they are quite effective predators with their unique bill.

Swordfish swim actively around their prey, which forms a "bait ball" by grouping in a ball swimming close together in the same direction in a massive ball. The swordfish jet around the bait ball at high speeds. They use their "sword", or bill, to hit a few fish out of the ball separating them from the school and stunning them. They gobble the fish up and do the process over and over until they had their fill or the entire school is gone. Scientists thought the manner in which the swordfish, and other billfish, used their bills was pretty much the only way they use it. They were wrong.

Sharks have been washing up on beaches along the Mediterranean coastline dead with the tips of swordfishes' bills in their head or in their backs. Researchers are trying to figure out why swordfish are impaling the predator as a broken bill does not grow back.

More research needs to be conducted to understand why swordfish are behaving in the manner. Are adults warding off attacks from predators competing for bait balls? Are juveniles impaling sharks because their bills are still growing? these are the questions being asked by researchers to get more insight.

Why do you think this is happening?

Link To Article:

https://www.nytimes.com/2020/10/27/science/swordfish-stabbing-sharks.html

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Check out the Shows on the Speak Up For Blue Network:

Marine Conservation Happy Hour Apple Podcasts: https://apple.co/2k4ZB3x Spotify: https://spoti.fi/2kkEElk

Madame CuriosityApple Podcasts: https://apple.co/2xUlSax Spotify: https://spoti.fi/2V38QQ1

ConCiencia Azul: Apple Podcasts: https://apple.co/2k6XPio Spotify: https://spoti.fi/2k4ZMMf

Dugongs & Seadragons: Apple Podcasts: https://apple.co/2lB9Blv Spotify: https://spoti.fi/2lV6THt

Environmental Studies & Sciences Apple Podcasts: https://apple.co/2lx86oh Spotify: https://spoti.fi/2lG8LUh

Marine Mammal Science: Apple Podcasts: https://apple.co/2k5pTCI Spotify: https://spoti.fi/2k1YyRL

Projects For Wildlife Podcast: Apple Podcasts: https://apple.co/2Oc17gy Spotify: https://spoti.fi/37rinWz

Ocean Science RadioApple Podcast: https://apple.co/3chJMfA Spotify: https://spoti.fi/3bnkP18

The Guide To Mindful Conservation: Dancing In Pink Hiking Boots:Apple Podcasts: https://apple.co/31P4UY6 Spotify: https://spoti.fi/3f7hDJw

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How To Protect The OceanBy Andrew Lewin

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