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
4951	Australia deploys new underwater technology to fight illegal fishing	sea food source	2020-11-23	AU
4952	A proposed fish farm in the Gulf of Mexico is making waves	wink news	2020-11-23	MX
4953	Climate Change Is Sending Some Species the Wrong Way	hakai magazine	2020-11-23	US
4954	Fish tales: a pandemic adventure across the US brings two anglers to Iowa	weare iowa	2020-11-18	US
4955	Long Island man sues PetSmart after dozens of koi fish die	sports grind entertainment	2020-11-21	US
4956	Expedition finds record number of fishes in abyssal deep-sea	hawaii.edu	2020-11-23	US
4957	Some fish are likely to get caught and recaught	futurity	2020-11-18	US
4958	Study supports theory that fish fins evolved from gill arches	newatlas	2020-11-18	US
4959	Norwegian report confirms viability of Andfjord’s fish sludge as fertilizer...	Undercurrent News	2020-11-20	NO
4960	Underwater museum: how 'Paolo the fisherman' made the Med's strangest sight	theguardian	2020-11-17	UK
4961	'The Greatest Shoal on Earth': Protecting South Africa's sardine run	cnn	2020-11-18	CA
4962	Fears for a million livelihoods in Kenya and Tanzania as Mara River fish die out	theguardian	2020-11-10	UK
4963	'Prevent, discourage, confront': South American states tackle Chinese fishing boats	theguardian	2020-11-05	UK
4964	Going for gold: pet firm reports resurgence in fish-keeping	theguardian	2020-11-27	UK
4965	What do fish eat?	yoursun	2020-11-25	US
4966	Over 50,000 salmon escape into wild after fish farm fire in Tasmania	AAP	2020-11-23	NZ
4967	RoboCop Sets Sail	hakaimagazine	2020-11-18	US
4968	Pittsburgh man charged with fish trafficking	ncnewsonline	2020-11-16	US
4969	New ‘fish condo’ off East Providence coast bustling with activity	wpri	2020-12-01	US
4970	Vancouver Island film maker has a sockeye’s view of salmon spawning ground	alberni valley news	2020-11-26	CA
4971	Multi-link catfish skull may hold key to better underwater robots	newatlas	2020-12-01	US
4972	Transport Canada floats new user fee for pleasure craft	CBC News	2020-11-09	CA
4973	Organized crime in the fisheries sector threatens a sustainable ocean economy	nature	2020-11-11	US
4974	A fish’s fins may be as sensitive to touch as fingertips	science news	2020-11-03	CA
4975	NOAA scientists study how offshore wind construction noise may affect black sea bass	national fisherman	2020-11-03	US

198 of [221 - pages.]