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
26	Giant floating wind farms could destroy fishing industry	stv	2024-10-03	UK
27	Dozens of fish died near the Kensington mine.	juneauempire	2024-10-04	US
28	Some fish relocated as Cabrillo Aquarium in San Pedro launches major $7 million upgrade	Daily Breeze	2024-09-30	US
29	From computers to catfish: scaling a RAS in Kenya	thefishsite	2024-10-11	KE
30	Tiny Fish makes innovation award shortlist	thefishsite	2024-10-11	UK
31	Grand opening event being held for new Provo River delta	einnews	2024-10-15	US
32	Late-season fishing is beyond expectations	observertoday	2024-10-12	US
33	LA Moviegoers to Get a Message From Joaquin Phoenix Condemning Cruelty to Fish	peta.org	2024-10-01	US
34	Hood Canal salmon run sees booming recovery as fish face extinction	The Seattle Times	2024-10-03	US
35	Against All Odds, the Dams Fell.	thestoryexchange	2024-09-30	US
36	New Yorks sidewalk fish pond is still going strong	USA TODAY	2024-09-21	US
37	How whirling disease in B.C. could threaten a lucrative fishery	CBC News	2024-09-23	CA
38	Red-bellied river creature — hidden among stones — found in China	miamiherald	2024-10-15	CN
39	A horizontal one-two for fall bass	echopress	2024-10-11	US
40	100-pound lake monster caught by angler in Hungary.	miamiherald	2024-09-24	HU
41	Adapt and Adjust	echopress	2024-10-04	US
42	River creature with thick lips, glittery fins found in China	miamiherald	2024-10-08	CN
43	Soil-dwelling fish dug up in rainforest of Costa Rica	miamiherald	2024-10-08	CR
44	Canadas sanction of 4 Passamaquoddy fishermen heats dispute over tribal fishing rights	bangor daily news	2024-10-07	CA
45	Вечера в лодке	ohotniki	2024-10-04	RU
46	Salmon Swim Freely in the Klamath River	Associated Press	2024-10-07	CA
47	Mass fish deaths in Lake Victoria push fish farmers to loss	thefishsite	2024-10-07	KE
48	Global fisheries must change to avoid ocean collapse, study says	lapatilla	2024-09-24	VE
49	Global fisheries must change to avoid ocean collapse	mongabay	2024-09-25	US
50	Another doomsday fish makes an appearance, this time in Australia	wionews	2024-09-25	AU