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
4201	Column: Reflecting on changes along the Adams River	saobserver	2020-09-23	CA
4202	Adams River - Tsútswecw Provincial Park Photographing the Salmon Run	canadiannaturephotographer	2018-10-20	CA
4203	Scientists turn fish parts into environmentally friendly plastic	upi	2021-04-05	CA
4204	Kentucky fisherman catches record-breaking fish, searches for certified scale	Fox News	2021-04-08	US
4205	Fish find way around polarization problem	nature	2012-10-22	UK
4206	Bones of 'living fossil' found in Texas	Science News	2012-10-24	US
4207	These fish stole an antifreeze gene from another fish and became natural GMOs	CBC News	2021-04-06	CA
4208	A Cruickshank River damn would help alleviate our drought issues	comoxvalleyrecord	2019-05-30	CA
4209	Take a hike, see devastation in the Comox Lake watershed	decafnation	2019-08-05	CA
4210	Angling For More Than A Fish	cvcollective	2021-04-18	CA
4211	Hooking into the Revelstoke fishing scene	Revelstoke Mountaineer Magazine	2017-08-17	CA
4212	Proposed fish farm permits stall while EPA reviews environmental effects	news-press	2021-04-03	US
4213	Taiwan responds to NGO reports on forced labor within its fishing fleet	seafoodsource	2021-04-02	TW
4214	Salmon with sea lice pulled from stores	UPI	2012-10-22	CA
4215	Chesapeake Striped Bass Reproduction At Record Low	baltimore	2012-10-17	US
4216	Michigan Angler Catches Record-Breaking Great Lakes Muskie	detroit.cbslocal	2012-10-20	US
4217	Mystery Florida eyeball is probably from '10ft swordfish', experts say	theguardian	2012-10-12	US
4218	Rare Gold Saury Worth Weight in Actual Gold, Apparently	soranews24	2012-10-05	JP
4219	Cub Scout catches 'monster' in Texas lake	beaumontenterprise	2012-10-05	US
4220	Южнокорейские компании вложат 11,8 млрд руб. в создание рыбного порта в Приморье	interfax	2021-04-14	RU
4221	'Scolded us for being female': Woman says fishing trip prize taken away because she is a woman	chron	2021-03-30	US
4222	Incredible moment fishermen casually cast their lines out as dozens of frenzied sharks thrash in the shallows next to them	dailymail	2021-04-01	UK
4223	State scientists look to purge invasive goldfish from Maine waters	bangordailynews	2012-10-03	IN
4224	Wis. voters favor blocking of Asian carp	UPI	2012-10-02	US
4225	North Sea cod: Is it true there are only 100 left?	BBC News	2012-09-30	CA

168 of [221 - pages.]