Lukas VFN 🇪🇺Dec 26

Scientists discovered 20 #NewSpecies deep in the Pacific Ocean https://www.npr.org/2025/12/21/nx-s1-5650781/new-species-deep-pacific-ocean

In the ocean's twilight zone, divers risk their lives in search of mysteries https://www.nationalgeographic.com/science/article/guam-twilight-zone-coral-reefs-new-species

"They were found after researchers retrieved 13 reef monitoring devices that had been placed in deep #CoralReefs in #Guam, which had been collecting data since 2018... Known as the #mesopelagic zone, it is a difficult area to reach because of pressure and requires specialized diving equipment."

Ele Willoughby, PhDSep 2, 2024

It’s deep sea month for #InsertAnInvert2024 starting with the mesopelagic twilight zone in the upper 200 to 1000 m water depth and going deeper. So I’m sharing this adorable Bobtail squid (actually, not a squid, but a cephalopod of order Sepiolida, closer to cuttlefish) is printed by hand onto black Japanese washi paper with a deckle edge. 🧵1/2

#linocut #printmaking #sciart #mesopelagic #bobtailSquid #cephalopod
#Squidtember #MastoArt

Show threadRolf GroeneveldAug 21, 2024
The result of the analysis is a landscape of concerns that reflects the current debate on fishing the #mesopelagic, and probably also feeds into future ones. A key insight for me is that such contestation should not only be anticipated, but also welcomed (8/9)
Show threadRolf GroeneveldAug 21, 2024
The #mesopelagic zone, also called the #oceantwilightzone because it lies at depths where only a tiny little bit of light penetrates, has huge populations of small #fish species such as pearlsides and lanternfish (2/9)
Rolf GroeneveldAug 21, 2024
New paper led by Amanda Schadeberg with Judith van Leeuwen and Marloes Kraan of the ENP group! https://doi.org/10.1016/j.marpol.2024.106337 In this paper we explore the various dimensions of a #SocialLicenseToOperate for #fishing the #mesopelagic zone (1/9)
Science is not enough: The role of legitimacy in the governance of marine activities

Several scientific programs are investigating the potential for the mesopelagic zone to provide food, fish meal, and nutraceutical supplements for hum…

Show threadRolf GroeneveldAug 20, 2024
The #mesopelagic zone, also called the #oceantwilightzone because it lies at depths where only a tiny little bit of light penetrates, has huge populations of small fish species such as pearlsides and lanternfish. Fishing companies have been looking at these populations as possible sources of fish feed and Omega-3 pills, but fishing them is very expensive (2/5)
Rolf GroeneveldAug 20, 2024
My paper with Andries Richter and Suphi Sen is out! https://doi.org/10.1093/icesjms/fsae108 In this paper we asked the question: is the #mesopelagic zone still such an attractive source of animal protein if we take into account that #fishing it might disrupt important #carbon cycles? We did a #costbenefitanalysis under the #horizon2020 MEESO project (https://www.meeso.org/) to find out (1/5)
Climate damage from fishing the mesopelagic zone exceeds its economic benefits

Abstract. Mesopelagic fish represent an opportunity for fishing companies and food production, but their exploitation carries substantial environmental ris

OUP Academic
Lukas VFN 🇪🇺Jul 9, 2024

New study reveals oceanic #seabirds chase tropical cyclones https://phys.org/news/2024-07-reveals-oceanic-seabirds-tropical-cyclones.html paper: https://www.cell.com/current-biology/abstract/S0960-9822(24)00806-6

"Initial studies suggested that sea #birds either circumnavigate #cyclones or seek refuge in the calm eye of the storm. However, these Desertas #Petrels did neither; instead, one-third of them followed the cyclone for days, covering thousands of kilometers... the storms churn up #mesopelagic prey from deep within the vertical column, giving the seabirds an easy meal at the surface"

New study reveals oceanic seabirds chase tropical cyclones

A new study published today in Current Biology, "Oceanic Seabirds Chase Tropical Cyclones," reveals that the rare Desertas Petrels (Pterodroma deserta), a wide-ranging seabird in the North Atlantic, exhibit unique foraging behaviors during hurricane season.

Lukas VFN 🇪🇺May 17, 2024

Five big discoveries from #WHOI’s Ocean #TwilightZone Project https://www.whoi.edu/oceanus/feature/five-big-discoveries-from-whois-ocean-twilight-zone-project/

"Deep below the #ocean surface, where sunlight almost disappears, the twilight zone abounds with life. From the tiniest #microbes to the largest #fish and everything in between, most of this shadowy world has long remained a mystery... WHOI researchers are wrapping up a six-year project that began with an audacious goal: to revolutionize our understanding of the #mesopelagic and the #animals that live there."

Five big discoveries from WHOI’s Ocean Twilight Zone Project

Six years since it began, WHOI's Ocean Twilight Zone project brings new and exciting insights to bear

Woods Hole Oceanographic Institution
Lukas VFN 🇪🇺Feb 18, 2024

The Sports Cars of Worms https://deepseanews.com/2024/02/the-sports-cars-of-worms/

"#Tomopterids are #pelagic #polycheates (segmented #worms) with paddle-like parapodia that propel them through the water column... They are voracious #predators, using their speed and agility to capture and consume a variety of midwater organisms... Tomopterids are one of a few organisms observed spewing yellow bioluminescent mucous"

#DeepSea #Animals #Invertebrates #Mesopelagic #TwighlightZone #Bioluminescence

The Sports Cars of Worms | Deep Sea News

https://www.youtube.com/watch?v=qbzd71Rwx0g "Tomopterids are pelagic polycheate (segmented worm) with paddle-like parapodia that propel them through the water column. They are relatively common in the deep mesopelagic, or twighlight zone, and can live down to about 2,500 meters (8,200 feet). Many To

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