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
1	Luthier builds electric guitar that doubles as a fish tank – and it plays surprisingly well	guitar	2024-10-08	US
2	Rapid predator-prey balance shift follows critical-population-density transmission between cod	nature	2024-10-29	NO
3	Colder water brings increased danger for boaters, paddlers as winter approaches	echopress	2024-10-23	US
4	Virginia floating pier nears completion	echopress	2024-10-28	US
5	fisheries supervisor floats introducing muskie to Kandiyohi County lake	echopress	2024-10-18	US
6	Chasing Winnipesaukee Landlocked Salmon	indepthnh	2024-10-28	US
7	Canadian government awards CAD 830,000 for Quebec fisheries projects	seafoodsource	2024-10-24	CA
8	MDC to stock nearly 10,400 rainbow trout in five urban lakes	einnews	2024-10-28	US
9	Americans fined $8K for illegal fishing in Canadian waters	CTV News	2024-10-25	CA
10	Surfer Giulia Manfrini dies after being impaled by a needlefish in Indonesia	9news	2024-10-22	AU
11	Giant Fish Thought to Be Extinct Is Spotted in the Mekong River	Associated Press	2024-10-22	CO
12	The tilapia hatchery that runs in the family	thefishsite	2024-08-28	EG
13	Puffer has lived 2 lifetimes at Everett library	heraldnet	2024-10-28	US
14	Record-breaking Black Buffalo fish caught in Stockton Lake	khqa	2024-10-18	US
15	Роскосмос отслеживает загрязнение реки Ямуна в Индии	hightech.fm	2024-10-25	RU
16	Nick Lindner talks ice fishing, career ahead of F-M Walleyes Unlimited talk	echopress	2024-10-16	CA
17	How the invasive spiny water flea spread across Canada, and what we can do about it	theconversation	2024-10-16	CA
18	Fishermen save fish from surprising, painful situation	thenewstribune	2024-10-17	US
19	US scientists explore hidden hydrogen treasure 5,000 feet below Lake Superior	Interesting Engineering	2024-10-17	US
20	Canadaway Creek brook trout stocking is Saturday	observertoday	2024-10-16	US
21	Canada proposes pilot project for Maritimes elver fishery	undercurrentnews	2024-10-16	CA
22	Fly fishing is gaining in popularity for married couples and hikers	campbellrivermirror	2024-10-16	DE
23	How climate change threat is being tackled by Scotlands salmon farmers	scotsman	2024-10-01	UK
24	Oyster farmers find northernmost blue angelfish ever reported off the coast of Cape Cod	boston	2024-10-02	US
25	Fish firm filmed burying salmon on Scottish island beach illegally	thenational	2024-10-03	UK