The Scent of Danger Makes These Fish Hulk Out

The Scent of Danger Makes These Fish Hulk Out

By Susan Cosier

Source: hakaimagazine

6/5/2021

Gilthead seabream swim back and forth in their tank, the yellow markings between their eyes that they’re named for flashing as they glide by. Carlos Díaz-Gil, a graduate student at LIMIA, the marine research and aquaculture laboratory of Mallorca in Spain, adds a few ice cubes to their tank. The ice is made of water from a neighboring tank containing black scorpionfish*, one of the seabream’s feared predators. Díaz-Gil knows that the scent of the scorpionfish, just a trace of its existence, will likely cause the seabream to change in surprising ways.

After a month, Díaz-Gil kills a select few seabream and measures them. The fish’s bodies have gotten deeper—bigger from back to belly—and more difficult for black scorpionfish to swallow, expanding in what appears to be a natural defensive change.

Continue...

News Id		Source	Stamp	country
4626	New Acoustic Telemetry System Helps Explain Salmon Migration; 'A Clearer, More Complete Picture'	Underwatertimes	2010-01-08	US
4627	Giant river fish faces extinction after years of overfishing	the guardian	2010-01-05	US
4628	Michigan balks at Obama's stance in Asian carp fight	cs monitor	2010-01-06	US
4629	Man gets house arrest for fish smuggling	upi	2009-12-31	US
4630	Sawridge Creek flood study will replace one from 1993	lakesideleader	2020-12-16	CA
4631	Michigan asks U.S. to block fish invasion	UPI	2009-12-21	CA
4632	Banned snakehead fish Rocky dies a year after being targeted by state officials	The Post-Standard	2009-03-23	US
4633	Carp battle not over yet	Journal Sentinel	2009-11-27	US
4634	Biologists save fish after landslide	usatoday	2009-11-10	US
4635	It’s Official, Bass Season is Open Now in Ontario’s Zone 20	fishncanada	2021-02-19	CA
4636	Gigantic Black Crappie Sets New State Record	fishncanada	2021-02-19	US
4637	Despite pandemic challenges, B.C. lakes stocked with millions of fish	vancouversun	2021-02-08	CA
4638	Lillooet River project a major undertaking, says new report	piquenewsmagazine	2019-04-29	CA
4639	The odd Hawaiianfish that Climb Cliffs	BBC News	2021-02-10	US
4640	Taranaki workmates land massive fish on tiny 'undersize' boat	stuff	2021-02-10	NZ
4641	Fish Kill: Nanosilver Mutates Fish Embryos	scientificamerican	2009-11-17	US
4642	95-pound catfish caught in Ohio	Odd News	2009-11-11	US
4643	Farming Fish in the Sky	hakaimagazine	2021-02-08	SG
4644	Missouri man fined more than $6,000 for possessing fish over the legal limit	tbnewswatch	2021-02-05	US
4645	Ask Dr. Universe: How can you tell if a fish is female or male?	spokesman	2021-02-07	US
4646	Biologist calls for judicial inquiry on salmon decline	ctvbc	2009-10-03	CA
4647	How do you train a fish?	BBC News	2009-10-02	US
4648	A New Chemical Method For Distinguishing Between Farmed And Wild Salmon	underwatertimes	2009-09-30	UK
4649	Something fishy happening at Centennial Park	smh	2009-09-21	AU
4650	Fishing for prehistoric quarry	bbc	2009-08-19	US

185 of [221 - pages.]