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#marinebiology

13 posts11 participants1 post today
Public
nemo™ 🇺🇦

Researchers filmed a live colossal squid in its natural habitat for the first time! 🦑 The juvenile was spotted 2,254 feet below sea level near the Antarctic South Sandwich Islands. This amazing footage gives scientists a new look at this mysterious creature. 🌊

🔗: nbcbayarea.com/news/national-i

NBC Bay Area · Colossal squid filmed alive in the ocean for first time 100 years after discoveryBy Julia Yohe
#ColossalSquid#MarineBiology#DeepSea
Public
Mojo ♻️

Whales Are Fertilizing Coral Reefs—With Their Urine.
Scientists just discovered that whales play a surprising role in ocean health—by recycling nutrients through their waste.
A new study in Nature Communications found that great whales (like humpbacks, grays, and rights) transport thousands of tons of nitrogen from polar feeding zones to tropical waters each year. Their urine acts as a natural fertilizer, boosting coral reefs and coastal ecosystems that would otherwise lack essential nutrients.
Another reason we need to protect these ocean giants.

#WhaleFacts #MarineBiology #OceanConservation #ScienceNews #CoralReefs

thecooldown.com/outdoors/whale

The Cool Down · Scientists make incredible breakthrough after studying whale urine: 'We soon realized that was only part of the story'Whale pee is a precious resource for ocean ecosystems, as revealed by a new study on the impact of the "great whale pee funnel."
Public
ABC Feeds

Macabre denizens of the deep revealed in Bass Canyon's darkness
By Gavin McGrath

Four kilometres below the Southern Ocean surface is a strange world inhabited by even stranger creatures. In its autumn voyage, the CSIRO's Research Vessel Investigator took a closer look.

abc.net.au/news/2025-04-13/csi

ABC News · CSIRO shines a light on Bass Canyon's deep, dark underworldBy Gavin McGrath
#Conservation#OceansandReefs#MarineBiology
Public
michael

10-Apr-2025
Transplanting Posidonia oceanica: a major scientific advance for the #conservation of #seagrassMeadows
This unprecedented experiment, conducted over a period of eight years, opens up new prospects for the preservation of seagrass meadows threatened by coastal urbanization

eurekalert.org/news-releases/1

EurekAlert!Transplanting Posidonia oceanica: a major scientific advance for the conservation of seagrass meadowsTransplanting seagrass meadows? Yes, it’s possible – and it works! The proof is in Monaco, with the successful transplantation of 384 m² of Posidonia oceanica. Posidonia oceanica is an essential underwater plant for marine biodiversity: it produces oxygen, shelters numerous species, and protects coastlines from erosion. Until now, these meadows were thought to be non-transplantable… but this eight-year study proves otherwise. This technique shows that transplantation can become a truly viable ecological solution to coastal urbanisation.
#science#ecology#marineBiology
Public
Kate :verigold:

[Levati et al.] Winter habitat preferences of cetaceans in the Northwestern Mediterranean Sea link.springer.com/article/10.1 🐋 #Cetaceans #MarineMammals #MarineLife #MarineBiology #Whales #Dolphins

SpringerLinkWinter habitat preferences of cetaceans in the Northwestern mediterranean sea - Marine BiologyInformation on winter distribution and habitat preferences of cetaceans in the Northwestern Mediterranean Sea (NWMS) is still limited. Using observational data collected from 2008 to 2020 using platforms of opportunity during winter (November–March), this work investigates species presence and habitat use across the NWMS at different spatial scales. In total, 51,030 km on-effort and 852 sightings were analysed. All the eight regular cetacean species were identified. Fin whales, sperm whales, striped dolphins and bottlenose dolphins showed a preference for the routes in Liguro-Provencal basin and the Tyrrhenian Sea. Habitat models confirmed that the distribution of cetacean species at basin-scale is shaped primarily by bathymetric features, and dynamic variables such as sea surface temperature, eddy kinetic energy and sea surface chlorophyll concentration have a role in determining species-specific habitat preferences. At subregional scale, the differences highlighted in the habitat use suggested that some areas, like the Liguro-Provencal basin are mainly used to perform feeding activities, while others more probably work as warm resting areas and/or travelling corridors. Results highlight the importance of NWMS as a key area for cetaceans during winter, therefore habitat preferences throughout the year should be considered to properly manage the overlap between marine resources and human activities.
Public
Kate :verigold:

[Connor, Ardoin & Leo] Effects of anthropogenic noise on marine mammal abundances informed by mixed methods nature.com/articles/s44183-025 🦭 #Seals #MarineMammals #MarineLife #MarineBiology #Pinnipeds #OceanNoise

NatureEffects of anthropogenic noise on marine mammal abundances informed by mixed methods - npj Ocean SustainabilityThis mixed-methods study examined the decline of a Harbor Seal (Phoca vitulina) colony’s abundance in Pacific Grove, California, USA, documented by community scientists. We combined generalized additive modeling (GAM) of abundance trends from 2003 to 2023 with qualitative analysis of Local Ecological Knowledge (LEK) obtained through interviews. LEK identified various anthropogenic disturbances that may have contributed to the colony’s decline. Statistical analysis revealed that, in 2022 and 2023, Harbor Seal abundance was 29.81% lower than expected, given the availability of prey fish in their forage range. Notably, roadwork near the colony during the 2022 pupping season likely impacted reproductive success and reduced habitat suitability, potentially impacting abundance. This study underscores the demographic impacts of human disturbances on marine mammals, the effectiveness of mixed-methods and community science in ecological research, and the critical need to mitigate disturbances to protect sensitive marine mammal populations, especially during critical periods like pupping seasons.
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