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
5451	Stoddard County angler state record for black buffalo	outdoornewsdaily	2019-05-16	CA
5452	Young Huntsville angler catches first state-record yellow perch	Fishing News	2019-05-16	CA
5453	One Reply to “Long Mountain Lake, British Columbia”	Fish'n Canada	2019-05-17	CA
5454	Swing-jig walleye	oodmag	2019-03-14	CA
5455	National Lifejacket Day – Is It Time for Change?	Fish'n Canada	2019-05-16	CA
5456	7 Reasons Why Size Matters for Halibut	noaa	2019-03-14	CA
5457	Ancient fish ponds in the Bolivian savanna supported human settlement	PLOS	2019-05-15	BR
5458	Walleye, sauger in danger of disappearing from Lake Winnipeg, says Manitoba Wildlife Federation	globalnews	2018-10-29	CA
5459	Fishing changes coming to Lake Winnipeg to help restore fish population	globalnews	2019-05-07	CA
5460	The mysterious case of the Kamloops Lake monster	CBC News	2019-05-13	CA
5461	'Like a bad dream': Parks Canada fights back against invasive species in Keji	CBC News	2019-05-13	CA
5462	Paddlefish Snagging Harvest Season to Close May 11	outdoornewsdaily	2019-05-09	US
5463	Kenora based angler Jeff Gustafson joins Bassmaster	CBC News	2019-02-02	US
5464	Ontario Extending its Partnership with Nipissing First Nation to Support Walleye Recovery	Ontario's official news source	2019-03-12	CA
5465	Redfish rebound in Gulf of St. Lawrence show no signs of slowdown	CBC News	2019-05-12	CA
5466	Lunar Activity Increases Fish Caught	Canadian Angling.com	2019-05-10	CA
5467	Slab crappie could be a new state record	outdoornews	2019-05-09	US
5468	Fishing husband, wife cited for being over the limit – to the tune of 250-plus crappies	outdoornews	2018-08-01	US
5469	Smallmouth bass sets new state record	outdoornews	2019-05-09	US
5470	Three locked-up bucks found dead in Ohio	outdoornews	2010-12-14	US
5471	New 5-Year Report Shows 101.6 Million Americans Participated in Hunting, Fishing & Wildlife Activities	Interior_Press	2019-05-09	US
5472	U.S. angler pays Ontario $400 fine for keeping 52lb lake trout	CBC News	2019-04-02	CA
5473	Sweeping reforms to West Coast fisheries recommended	vancouver news	2019-05-09	CA
5474	Huge ‘Prehistoric’ Alligator Gar Caught in Oklahoma’s Lake Texoma	NewsWeek	2019-04-23	US
5475	Pimp my shack: Luxury ice fishing a growing trend in Alberta	CBC News	2019-02-16	CA

218 of [220 - pages.]