Naked Science Forum

Life Sciences => Marine Science => Topic started by: Mariana on 20/02/2019 09:23:27

Title: Do sharks only eat live fish?
Post by: Mariana on 20/02/2019 09:23:27
Jon wants to know:

Do sharks only eat live fish? Or could they be more opportunistic, such that a dead fall would provide reason to linger in an area?

Do you know the answer?
Title: Re: Do sharks only eat live fish?
Post by: evan_au on 20/02/2019 10:01:44
Sleeper sharks have been known to eat dead whales...
See: https://en.wikipedia.org/wiki/Whale_fall

Many sharks have sensors in their nose to detect electrical activity in muscles, and these sensors would not be triggered by dead bodies - but many sharks are also sensitive to blood, and this would often attract them to dead bodies....
Title: Re: Do sharks only eat live fish?T
Post by: pensador on 17/03/2019 17:41:02
Jon wants to know:

Do sharks only eat live fish? Or could they be more opportunistic, such that a dead fall would provide reason to linger in an area?

Do you know the answer?

Yes they eat dead fish, and if they arent dead when they start eating them, they are when thety are finished :)

Title: Re: Do sharks only eat live fish?
Post by: evan_au on 17/03/2019 19:16:43
Those looking to catch and/or video sharks often dump dead fish or blood into the water to attract sharks.

Those scents of the recently-dead will attract sharks from a considerable distance.
Title: Re: Do sharks only eat live fish?
Post by: chiralSPO on 17/03/2019 19:26:41
Sharks are known to be particularly non-picky eaters. There are many reports of sharks found with objects in their stomachs that were never alive (and I don't just mean bits of plastic).

https://www.sharksider.com/14-weirdest-things-sharks-eaten/
Title: Re: Do sharks only eat live fish?
Post by: Reggy777 on 06/05/2019 12:05:24
Sharks eat ALL fish (dead and live), many times saw how they feed sharks in the oceanarium near me
Title: Re: Do sharks only eat live fish?
Post by: Pregnancer on 07/05/2019 12:46:17
Sharks are opportunistic feeders, but most sharks primarily feed on smaller fish and invertebrates. Some of the larger shark species prey on seals, sea lions, and other marine mammals. Sharks have been known to attack humans when they are confused or curious.
Title: Re: Do sharks only eat live fish?
Post by: Rasull on 02/07/2019 09:51:56
Sleeper sharks have been known to eat dead whales...
See: https://en.wikipedia.org/wiki/Whale_fall

Many sharks have sensors in their nose to detect electrical activity in muscles, and these sensors would not be triggered by dead bodies - but many sharks are also sensitive to blood, and this would often attract them to dead bodies....
Very nice explanation, this helps me to know some unknown facts about sharks.
Title: Re: Do sharks only eat live fish?
Post by: Adervato on 20/11/2019 11:56:08
All sharks are carnivorous, meaning that they only eat other animals. The range of prey eaten by sharks is extremely broad, from snails to sea urchins, crabs, fish, rays, other sharks, seals, and birds. Some sharks eat carrion (animals that are already dead), but most only eat live prey.
Title: Re: Do sharks only eat live fish?
Post by: tombaker on 14/01/2020 15:43:15
In fact, this is an interesting topic, and I want to know more about it, I like these topics, they make me think about it for a long time.
Title: Re: Do sharks only eat live fish?
Post by: Colin2B on 14/01/2020 16:02:17
In fact, this is an interesting topic, and I want to know more about it, I like these topics, they make me think about it for a long time.
Glad to hear it.
However, if you want to go on enjoying this site it is wise not to advertise commercial sites.
Title: Re: Do sharks only eat live fish?
Post by: marcus1RM on 28/01/2020 14:46:22
As I know, the main thing for them is to feel blood.
Title: Re: Do sharks only eat live fish?
Post by: EuniceSmith on 09/02/2021 10:41:02
I think if a fish has recently died and a shark smells it, then it will eat it :-X
Title: Re: Do sharks only eat live fish?
Post by: charles1948 on 09/02/2021 22:27:24
I wonder whether there might be some vegetarian sharks, as yet undiscovered.

Such discoveries do crop up.  For example, until fairly recently, we thought that all spiders were carnivores, like sharks

Then a species of vegetarian spider was discovered. Couldn't that happen with sharks?
Title: Re: Do sharks only eat live fish?
Post by: Jolly2 on 14/02/2021 13:02:53
Jon wants to know:

Do sharks only eat live fish? Or could they be more opportunistic, such that a dead fall would provide reason to linger in an area?

Do you know the answer?

I asked a local sea food restaurant owner they said yes, apparently Jets prefer them dead. I think the owner was a secretly a jet.
Title: Re: Do sharks only eat live fish?
Post by: scientistlover1 on 15/02/2021 17:11:54
Hey Guys,
I agree with you. It depends on the shark. Normally, sharks prefer to eat live animals (i. e. fish). But there are also sharks that eat carrion (such as the great white shark), so also dead animals.