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
4676	"Salmon cannon" successor automatically shoots fish up over dams	newatlas	2021-01-13	US
4677	New Fish Parasite Species Described; Farmed Fish Infected With Serious Disease	Underwatertimes	2021-01-27	NO
4678	Scientist Discovers Six New Species Of Deep Sea Fish; 'tremendously Exciting!'	Underwatertimes	2008-02-11	UK
4679	Cod spawn ground closure revealed	bbc	2008-02-16	UK
4680	Steven Spielberg livid over his koi fish being eaten by a raccoon	topnews	2007-12-27	IN
4681	Store-bought Freshwater Fish Contain Elevated Levels Of Mercury, Arsenic And Selenium	Underwatertimes	2007-11-07	US
4682	'Monster' salmon caught on river	bbc	2007-10-15	UK
4683	Call to breed fish in farm barns	bbc	2007-10-10	UK
4684	Fish billionaire in plea to save wild salmon	the guardian	2007-09-29	UK
4685	New study finds similarities in how fish and humans destress	Jerusalem Post	2021-01-18	IL
4686	Scientists and Researchers: Canadian Wild Salmon Endangered By Failure To Contain Sea Lice From Salmon Farms	Underwatertimes	2007-09-25	CA
4687	Rare Albino Ratfish With Eerie, Silvery Sheen Caught Off Washington Coast; 'It Must Have Been Like A Beacon'	Underwatertimes	2007-09-24	US
4688	World record tuna landed by NZ fisherman	smh	2007-08-28	NZ
4689	Russian Agency Seeks 'Extremely Tight State Monopoly' Over Sturgeon, Black Caviar Trade	Underwatertimes	2007-08-21	RU
4690	Tilapia Found To Be Potent Malaria Control Method	Underwatertimes	2007-08-09	KE
4691	Fishing as a Contact Sport	ABC News	2007-07-29	US
4692	Scots fishermen admit sailings to Denmark to sell their fish because of Brexit in PM protest	herald scotland	2021-01-15	UK
4693	The Boater Versus the Beast	abc news	2007-07-13	US
4694	High-power Sonar Did Not Harm Fish; 'Some Small Behavioral Responses'	Underwatertimes	2007-07-05	US
4695	Alleged fish thieves arrested, accused of stealing $4m worth of salmon	NCA NewsWire	2021-01-17	AU
4696	Azerbaijan: Sturgeon Poachers Out of Control	Sabuhi Nasirli	2007-05-17	AZ
4697	Rare fish stolen in £15,000 haul	oxford mail	2007-05-08	US
4698	Great Lakes fish virus may threaten U.S. aquaculture	reuters	2007-04-23	US
4699	Scottish salmon farm suffers 'major' seal attack as thousands of fish lost	heralds cotland	2021-01-15	UK
4700	Couple pays $76K in fines for illegal aquarium fishing	West Hawaii Today	2021-01-15	US

187 of [218 - pages.]