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
926	Hustosky reflects on lifelong love for fishing	tribtoday	2024-02-25	US
927	Sturgeon excursion serves up a fun night on the ice in Lake of the Woods country	echopress	2024-02-24	US
928	Transforming fish waste into sustainable feeds	thefishsite	2024-02-23	KE
929	Financial support for pollock fishermen	.through-the-gaps	2024-02-23	UK
930	Upper Salmon River Steelhead Fishing Report (02-20-2024)	einnews	2024-02-20	EU
931	With drop in illegal fishing comes rise in piracy	mongabay	2024-02-22	ID
932	Fishing boat that ran aground near Fortune Harbour returns to dock	CBC News	2024-02-22	CA
933	New protections for the eastern blue groper after beloved fish brutally killed in Sydney	9news	2024-02-20	AU
934	Рыболовный туризм на Полесьи	ohotniki	2024-02-17	BR
935	Nordic Aqua expect to harvest 3,400 tonnes of salmon from China RAS this year	thefishsite	2024-02-22	CN
936	Is Lewis set for a 90,000 tonne underground salmon farm?	thefishsite	2024-02-22	UK
937	I Caught That Fish Legally and Honestly	outdoorlife	2024-02-16	US
938	We filmed moment we landed a huge 600lb grouper fish…it felt like we were reeling in a crocodile, say Brit backpackers	thesun	2024-01-28	AU
939	The pet Ill never forget: Charlotte, the goldfish who rose from the dead	theguardian	2024-01-29	UK
940	How Dubai doctor turned passionate Koi fishkeeper with collection worth Dh2 million	gulfnews	2024-01-29	SA
941	Red handfish taken into captivity to protect them	abc	2024-01-30	AU
942	Fisherman earns several awards by catching a 62-pound catfish	yahoo	2024-01-31	US
943	Disappointment, frustration, and questions after Virginia lawmakers	yourerie	2024-02-01	US
944	Nemo clownfish drive away species with same stripes, study suggests	theguardian	2024-02-01	UK
945	How trophy fishing can have a sustainable future	theconversation	2024-02-02	PG
946	Endangered fish can live longer after cataract surgery	umontreal	2024-01-26	CA
947	Unacceptable greenwashing: Call to remove organic labelling from farmed salmon	yahoo	2024-01-30	UK
948	The nations top lakes and rivers for fishing include several California waterways	mercurynews	2024-02-19	US
949	New welfare standard announced for farmed salmon	thefishsite	2024-02-19	CL
950	1,700 EU fishing boats still plundering British seas says furious former Brexit MEP	express	2024-01-31	UK