Rapid predator-prey balance shift follows critical-population-density transmission between cod

Rapid predator-prey balance shift follows critical-population-density transmission between cod

By Shourav Pednekar, Ankita Jain, Olav Rune Godø & Nicholas C. Makris

Source: nature

10/29/2024

Sensing limitations have impeded knowledge about how individual predator-prey interactions build to organized multi-species group behaviour across an ecosystem. Population densities of overlapping interacting oceanic fish predator and prey species, however, can be instantaneously distinguished and quantified from roughly the elemental individual to spatial scales spanning thousands of square kilometres by wide-area multispectral underwater-acoustic sensing, as shown here.

This enables fundamental mechanisms behind large-scale ordered predator-prey interactions to be investigated. Critical population densities that transition random individual behaviour to ordered group behaviour are found to rapidly propagate to form vast adversarial prey and predator shoals of capelin and surrounding cod in the Barents Sea Arctic ecosystem for these keystone species.

Atlantic cod

Continue...

News Id		Source	Stamp	country
776	Scheme launched to tackle invasive carp populations	thefishsite	2024-03-11	US
777	Future of Maines lucrative baby eel industry to be decided by regulatory board	foxnews	2024-03-14	US
778	The history of the red tilapia	farmersweekly	2014-04-02	ZA
779	Secrets of the deep – how fish scales could confound counterfeiters	newatlas	2024-02-26	SG
780	One of the worlds smallest transparent fish roars as loud as a gunshot	interestingengineering	2024-02-27	DE
781	Men caught illegally snatching prehistoric creatures from Oregon bay	thenewstribune	2024-02-27	US
782	Watch fish species chase lasers just like cats	1news	2024-03-14	NZ
783	Marine expert defends use of cameras on commercial fishing vessels	1news	2024-02-28	NZ
784	Annual Fish Health Report details causes of salmon mortality	thefishsite	2024-03-13	NO
785	Ловля камбалы в Сочи	ohotniki	2024-03-09	RU
786	Scientists continue to search for what's poisoning Lower Keys fish	wlrn	2024-03-01	US
787	Scientists discover new species of fish off Baja California coast	FOX 5/KUSI	2024-02-28	MX
788	Should all marine reserves ban fishing? Not necessarily, new study shows	mongabay	2024-02-29	US
789	This species occurs only here Snorkeling scientists count endangered fish	reviewjournal	2024-02-29	ES
790	Rare black paddlefish caught in Tulsa County	FOX 13 News	2023-05-26	US
791	Utrechts fish doorbell is back for another season	BBC News	2024-03-02	DK
792	Fishbowl shares joy of Ontario sports fishing	cambridgetoday	2024-03-13	CA
793	Fishers fined $29K banned from B.C. fishing lodge for illegal catches	ctvnews	2024-03-13	CA
794	Canadian fishing lodges see optimistic trends as U.S. tourists return post-pandemic	echopress	2024-03-08	CA
795	Open-water fishing ideas	echopress	2024-03-08	US
796	Maryland Catfish Tournaments Offer Invasive Species Angling	einnews	2024-03-11	US
797	Fogo Island: Bringing new life to a remote Canadian fishing community	cbsnews	2024-03-10	CA
798	New salmon study adds to evidence that pink salmon could be crowding out sockeye	alaskabeacon	2024-03-02	US
799	Hundreds of thousands of salmon released in Northern California river die in large mortality event	sfgate	2024-03-03	US
800	Study reveals predatory fish coordinate attacks through rapid color changes	interestingengineering	2024-02-26	US