Dutch make hole in the dyke to allow migrating fish through

Dutch make hole in the dyke to allow migrating fish through

Source: DutchNews

1/26/2021

Dutch make hole in the dyke to allow migrating fish through

Work has started on a four year project to boost fish numbers by allowing them free passage from the Wadden Sea to the IJsselmeer lake via a gap in the Afsluitdijk, which was built as part of Dutch flood defences and completed in 1932. Migrating fish, which need both salt and fresh water to breed, are already gaining access via the sluices of the Afsluitdijk but strong currents mean that only the strongest swimmers make it to the other side. The new project involves developing a fish migration river which cuts through the dyke allowing fish to swim through at their own pace. Once finished, greater numbers of salmon, sea trout, herring, and eel will be able to make the trek while weaker swimmers like elver, three-spined sticklebacks and fry will stand a much better chance of survival.

The Afsluitdijk, a 32 kilometre dyke which links the provinces of Noord-Holland and Friesland, is currently undergoing an extensive programme of maintenance to ensure its safety to 2050. Joint effort The migration river is a combined effort by a number of conservation organisations including the Waddenvereniging and It Fryske Gea and the provincial authorities of Noord-Holland and Friesland. Fish numbers had been falling to worrying levels, Waddenvereniging marine biologist Wouter van der Heij told local broadcaster Omrop Fryslân.

Continue...

News Id		Source	Stamp	country
4701	Farmed Salmon Could Become an Invasive Species in Forest Streams	Underwatertimes	2007-03-08	US
4702	Thames 'clean enough' for salmon	bbc news	2007-03-26	UK
4703	Study: Fish 'Catch Shares' Scheme Reduces By-catch, Increases Per-Boat Revenue, Boosts Safety	Underwatertimes	2007-03-28	US
4704	Chesapeake Bay receives another D+ on health report, due largely to struggling rockfish population	baltimore sun	2021-01-05	US
4705	Royal Navy sends four warships into English Channel	daily mail	2021-01-02	UK
4706	Massive operation nets fleet of illegal fishers	the age	2006-04-06	AU
4707	Gender-changing fish are studied	United Press International	2006-04-11	US
4708	Scientists Try to Count Fish in Sea	Washington Post	2006-04-10	US
4709	30 New Fish Species Discovered On Borneo; 'The More We Look the More We Find'	Underwatertimes	2006-12-19	SW
4710	Climate Change has Surprising Effect on Endangered Naked Carp; 'Metabolic Holiday'	Underwatertimes	2006-12-19	US
4711	Snakeheads Appear at Home in the Potomac	washington post	2006-10-02	US
4712	Farming endangered blue-fin tuna	bbc news	2006-12-27	JP
4713	World First as Endangered Fish Population Recovers; Shortnose Sturgeon Numbers Up 400%	Underwatertimes	2007-02-06	US
4714	Chips plan to keep an eye on fish	bbc news	2006-10-16	CA
4715	Scientists: First Documented Spawning of White Fish in the Detroit River Since 1900s	underwatertimes	2006-10-17	US
4716	Study: Critical Nutrients in Ecosystems Change when Fish Become Extinct	underwatertimes	2007-03-27	CA
4717	'No debate' that fish farms kill wild salmon, says B.C. scientist	CBC News	2006-10-20	CA
4718	A Swarm of Biologically-inspired Little Underwater Explorers	harvard	2021-01-15	US
4719	Scientists discover electric eels hunting in a group	Smithsonian	2021-01-14	BZ
4720	Robot fish equipped with tiny cameras could change ocean rescues	ctvnews	2021-01-13	CA
4721	The B.C. fish you've likely never heard of that's confounding trawlers and officials	CBC News	2021-01-03	US
4722	Thai Fishermen Break Ranks, Vow to Resume Hunt of Endangered Mekong Catfish; 'We Need to Make A Living'	underwatertimes	2006-03-04	TH
4723	Despite rescue effort, Maine salmon may be facing extinction	underwatertimes	2006-01-31	CA
4724	One fish, two fish: New sensor improves fish counts	underwatertimes	2006-02-02	US
4725	Scientists: Evolutionary Origin of Fins, Limbs Discovered; 'This Confirms a Lovely Idea'	underwatertimes	2006-07-26	US

188 of [217 - pages.]