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
3876	World’s Largest Charity Ice Fishing Contest Draws 11,000 Anglers	outdoorhub	2015-01-28	US
3877	Mystery of the real-life sea serpent	BBC News	2015-01-15	US
3878	Deepest Fish Features Angel Wings, Tentacles and Amazing Ability to Perform Under Pressure	scientific american	2015-01-08	US
3879	Watch the moment a seahorse meets a fish: Rare marine footage captured at Eden	begadistrict news	2021-06-03	AU
3880	Is recreational fishing technology getting ahead of the regulations that protect fish?	CBC Radio	2021-06-04	CA
3881	Even fish not spared of Israeli onslaught on Gaza	aa	2021-05-25	IL
3882	Bluefin tuna sells for $37,500 in Tokyo	upi	2015-01-05	JP
3883	Koi carp owner baffled as fish vanish	halsteadgazette	2014-12-26	UK
3884	Great Barrier Reef potato cod at risk from own friendliness	brisbane times	2014-12-17	US
3885	One of world's most invasive fish detected in New South Wales for first time	ABC Rural	2014-12-17	UK
3886	US Navy is developing a robot fish called Silent Nemo	telegraph	2014-12-12	UK
3887	The heat is on for the 'living fossil'	China Daily	2014-12-09	CN
3888	A Fishing Lure So Effective, It Catches Criticism	nytimes	2014-12-02	US
3889	Tongue-eating parasite discovered in Morrisons meal	metro	2014-11-23	UK
3890	S.F. creating an ‘amnesty pond’ for unwanted goldfish	sfgate	2014-11-25	US
3891	Scientists Investigate Lake Ontario When Submarine Spots Mysterious Object	domesticatedcompanion	2021-05-04	CA
3892	Canada adds warm-water fish to list of species monitored on East Coast	CBC News	2021-06-08	CA
3893	Ireland furious as Norway makes huge seizure of fish quota - 'Not acceptable!'	express	2021-05-28	UK
3894	Manned missions to Mars have taken a step closer thanks to hibernating zebrafish	euronews	2021-06-08	US
3895	Black Seadevil caught on camera at depth of 1,900 feet	usatoday	2014-11-22	US
3896	Local boys catch their own 'River Monster'	news4jax	2014-11-19	US
3897	P.E.I. farmer fined for pesticide runoff that killed thousands of fish	ctv news	2014-11-19	CA
3898	Sport and commercial fishermen battle over monster catfish	indystar	2014-11-02	US
3899	Atlantic Bluefin Tuna quotas see first increase in 24 years	CBC News	2014-11-18	CA
3900	The sockeye salmon's incredible, vital journey	macleans	2014-11-16	CA

155 of [221 - pages.]