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#overfishing

1 post1 participant0 posts today
Public
Doreen Fräßdorf

Seit mehr als 420 Millionen Jahren haben Knorpelfische – Haie, Rochen und Seekatzen – die Ozeane durchstreift und dabei fünf Massenaussterben überlebt. Doch nun zeigen ein Bericht der IUCN und eine Studie ein erschreckendes Bild: Ein Drittel aller Haie, Rochen und Seekatzen weltweit ist vom Aussterben bedroht...
#MarineConservation #Haie #Sharks #Rochen #IUCN #OceanProtection #SaveTheOceans #Artenschutz #Overfishing

artensterben.de/haie-und-roche

artensterben.de · Haie, Rochen und Seekatzen: Ein Drittel steht vor dem AussterbenWissenschaftler warnen vor einem zunehmenden Verlust dieser Arten und fordern dringend Maßnahmen, um Überfischung einzudämmen, den Handel zu regulieren und nachhaltige Fischereipraktiken zu etablieren.
Public
The Inquisitive Biologist

This week's #NewBooks at the library: Late to the party, I know, but a collector's edition was all I needed to buy @hughhowey's Wool. I also found two inexpensive second-hand copies of OUP titles: Natural Selection & Beyond: The Intellectual Legacy of #AlfredRusselWallace (the Wallace biography I reviewed invited further reading) and #Overfishing: What Everyone Needs to Know. #Books #Scicomm #Bookstodon #Evolution #HistoryOfScience #ScienceHistory #HistSci #Oceans #MarineBiology

A photo of three books standing on a small, brown, wooden table. On the left, standing up, Hugh Howey's Wool, showing silver and red lettering on a stylised spiral background. In the middle, lying down, Overfishing: What Everyone Needs to Know, which lacks its dust jacket and shows gold lettering on a plain black cover. On the right, standing up, Natural Selection & Beyond, showing a painted portrait of an old man with a white beard and glasses in a black suit and an orange tropical butterfly. The out-of-focus background shows black shelves full of books and part of the beech-coloured laminate floor.
Public
Prof. Tatiana Ilyina

A hundred years ago, fish lived longer and grew bigger – they continued to breed, engineered ecosystems through predation and were more resilient to ocean changes such as marine heatwaves.

Today the size structure of marine fish populations has changed. This is mostly because we are catching all the biggest fish – so many fish populations consist only of younger, smaller fish. And that is putting entire populations at risk”
👇
nationaltribune.com.au/size-ma
#overfishing #ocean #ecosystem

The National Tribune · Size matters: why fish size diversity is vital for healthy oceansA hundred years ago, fish lived longer and grew bigger – they continued to breed, engineered ecosystems through predation and were more resilient to
Public
Lukas VFN 🇪🇺

From Overfished to Sustainable Harvests: Pacific Bluefin #Tuna Rebound to New Highs
fisheries.noaa.gov/feature-sto

#NOAA: "The recovery of #PacificBluefinTuna has achieved a major milestone—the species exceeded international targets a decade ahead of schedule. The rebuilding of Pacific #BluefinTuna reflects a fisheries management success. International organizations cooperated across the Pacific to reverse decades of #overfishing for the species."

Photo of several large tuna fish under water
Public
Lukas VFN 🇪🇺

After a century away, #sturgeons return to Swedish waters phys.org/news/2024-06-century-

"scientists in June embarked on a 10-year project to reintroduce the Atlantic #sturgeon to a cleaned-up river in the west of the country... The #fish lived in the river until the late 19th century, but gradually disappeared due to #overfishing and #pollution. Today, the river is much cleaner and conditions are again right for the sturgeon"

photo of a large fish
Public
Evan Centanni (PolGeoNow)

Interesting article from International Crisis Group on possible resurgence of Somali #piracy, with photo-illustrated reporting (plus #geography details) from the original home of #Somalia's pirate industry. crisisgroup.org/africa/horn-af

#geopolitics #maritime #security #fisheries #pirates #IndianOcean #HornOfAfrica #EastAfrica #overfishing #MaritimeSecurity @geography @geopolitics

www.crisisgroup.org · The Roots of Somalia’s Slow Piracy Resurgence | Crisis GroupAfter a decade-long lull, Somali pirates have hijacked a handful of vessels in recent months. Crisis Group expert Omar Mahmood reports on the burning anger over illegal trawling that is driving some local fishermen to sympathise with this dangerous – and profitable – activity.   
Continued thread
Public
Pepijn

Overfishing.org contained both an introduction to the issue of #overfishing, and #teaching resources. See attached some evergreens (low resolution, DM me for high res).

There's the "what, why, how" #infographic, #satellite imagery of #BottomTrawling in the Dutch #Waddensea #environment, and a poster with #trawling all around the world.

As I'm #sad to see the website go I've renewed the #domain for one more year and am happy to "donate" it to a good cause. Any interest: DM me.

2/2

A quick and accessible infographic or "one minute crash course to overfishing". Available as image file (here), PowerPoint presentation and as a zip file with ten separate images (DM me for those).
Along the coasts of The Netherlands, Germany and Denmark there lays a shallow coastal sea -with associated wetlands and islands- extremely rich with all types of important sea (it serves as a spawning and nursing grounds for fish) and bird (millions of migratory birds use the mud flats to feed on) life. Large parts of the sea consist of tidal mudflats. The intertidal area is sea during high-tide and dryish land during low-tide. For decades there have been bottom trawling and dredging activities on the Dutch part of the area. As of July 1, 2004 mechanical cockle fisheries have been banned in order to preserve the cockles (and the rich bottom) for the millions of birds. However, some fisheries on mussels (mariculture) and shrimp are still taking place. Here are two low-tide imageres showing the marks / scarves left by various trawling activities. These take years to disappear from visual sight and even longer for the benthic situation to return to the pre-trawling situation. The images are composites from aerial photographs, the location is near the island of Texel.
Along the coasts of The Netherlands, Germany and Denmark there lays a shallow coastal sea -with associated wetlands and islands- extremely rich with all types of important sea (it serves as a spawning and nursing grounds for fish) and bird (millions of migratory birds use the mud flats to feed on) life. Large parts of the sea consist of tidal mudflats. The intertidal area is sea during high-tide and dryish land during low-tide. For decades there have been bottom trawling and dredging activities on the Dutch part of the area. As of July 1, 2004 mechanical cockle fisheries have been banned in order to preserve the cockles (and the rich bottom) for the millions of birds. However, some fisheries on mussels (mariculture) and shrimp are still taking place. Here are two low-tide imageres showing the marks / scarves left by various trawling activities. These take years to disappear from visual sight and even longer for the benthic situation to return to the pre-trawling situation. The images are composites from aerial photographs, the location is near the island of Texel.
Modern satellite imagery clearly show the mud trails, distortion and other destruction left by the coastal -shallow water- version of these trawling activities. * trawling imagery from Ecuador, USA (Georgia and Louisiana), Netherlands (Vlieland and Westerschelde), Phillipines, China, Malaysia, Indonesia and Mexico. Satellite images are Quickbird, Landsat and aerial photographs.
#ocean#sea
Public *
Pepijn

For 21 years I've ran an informative #website on #overfishing.

As an "independent source" it was used by politicians, students, and many everyday people alike.

It was used for #publications & #documentaries, and triggered some inquires where I assisted in shaping national & international political statements. It's been fun & fulfilling 🙂

In today's siloed internet its usefulness is gone. No more days with 5.000 unique visitors & multiple email inquires.

Today is its last day online. 1/2

screenshot of overfishing.org as of today.
Public
CelloMom On Cars

"A new study quantified nutrient availability from #seafood through time considering the twin impacts of #overfishing and #ClimateChange.

Focusing on four key nutrients important to human health — calcium, iron, omega-3 fatty acids and protein — the authors argue that nutrient availability in seafood has been declining since 1990 and will further decline by around 30 per cent by 2100 in predominately tropical, low-income countries with 4 C of warming."

theconversation.com/climate-ch

The ConversationClimate change is further reducing fish stocks with worrisome implications for global food suppliesClimate change and overfishing are depleting global fish stocks with clear implications for the food security future of billions of people.
Public
O=C=O

Endangered species list grows by 2,000. ClimateChange is part of the problem

The update includes the first broad assessment of the health of freshwater #fish species. One-quarter of species — just over 3,000 — face an #extinction risk. As climate change raises sea levels, salt water is traveling further up rivers, for example. And these species already face tremendous threats from #pollution and #overfishing, the #IUCN said.

washingtonpost.com/national/20

The Washington Post · Endangered species list grows by 2,000. Climate change is part of the problemBy Michael Phillis | AP
#Biodiversity
Public
Prof Felipe Gusmao

#Hypocrisy is threatening the #future of the world’s oceans

>"None of the 17 #UnitedNations #SustainableDevelopmentGoals (#SDGs) is on track to be achieved by 2030... But progress on a few, including the 14th goal — to conserve and #sustainably use the #oceans — has actually been going backwards since the 2015 UN summit..."

#SDG14 #acidification #pollution #overfishing #biodiversity #Conservation #MarineScience #UN #EnvironmentalEthics #Ethics #SDG

@philosophy
nature.com/articles/d41586-023

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