Okayama University of Science and Murakami City, Niigata Prefecture, have launched a joint research project to establish the world’s first fully closed-cycle land-based aquaculture system for chum salmon (Oncorhynchus keta) using the university’s proprietary “Third Water” technology. The project aims to address the dramatic decline in salmon returns caused by climate change and changing marine ecosystems. More than 2,000 juvenile salmon are currently being reared in a 35-ton closed recirculation aquaculture system at the university’s Next-Generation Aquaculture Center. Researchers expect the fish to reach market size within one to two years. If successful, the project could provide a sustainable alternative to ocean-dependent salmon production and contribute to the long-term resilience of salmon fisheries in Japan and worldwide.

Researchers from Shanghai Jiao Tong University have successfully utilized a novel screw extrusion-plasticizing friction stir deposition (SEFSD) process to 3D print 5183 aluminum alloy components in the solid state. This innovative approach bypasses the melting phase, significantly reducing common defects like pores and element evaporation. The resulting components showcase a refined microstructure and excellent mechanical properties, paving the way for efficient manufacturing of aerospace and marine structures.

The first published live observations of the rare goblin shark (Mitsukurina owstoni) in its natural deep ocean habitat were reported in a new paper by a University of Hawai‘i at Mānoa-led team of oceanographers. In the past, goblin sharks were only filmed and reported alive after being hooked on a fishing line and hauled to the surface, where divers could observe them and where they soon died. The new study, published in Journal of Fish Biology, documents two live observations of one of the most elusive but iconic sharks on the planet—one at a seamount near Jarvis Island and another on the slope of the Tonga Trench. 

Archaeological evidence from the Canary Islands suggests that by the 11th century, people here were harvesting and processing a variety of fish and other marine organisms — indicating that coastal resources may have played a vital role in the economic system, according to a study published June 10, 2026 in the open access journal PLOS One by Jonathan Santana from the University of Las Palmas de Gran Canaria, Spain, and colleagues.

Storm surges and extreme water levels along coastlines occur significantly more frequently today than at the beginning of the 20th century. A new study in the journal Nature Climate Change shows that what was statistically expected to occur only once every 100 years around 1900 now occurs, in global average, about every eight years. This corresponds to an increase by a factor of about twelve. The team of authors includes Prof. Ben Marzeion from the Institute of Geography and MARUM – Center for Marine Environmental Sciences at the University of Bremen.

 

Researchers from the Institute of Deep-sea Science and Engineering (IDSSE) of the Chinese Academy of Sciences, in collaboration with the University of Pisa, Italy, and the National Institute of Water and Atmosphere Research, New Zealand, have now documented the world’s deepest and largest known aggregation of whale fossils and active whale-fall ecosystems. This deep-sea site, referred to as a “whale necropolis” due to its vast size, is located in the Diamantina Zone of the southeastern Indian Ocean and contains evidence of cetacean falls for at least 5.3 million years.

The number of icebergs in the Arctic has increased sharply since the 2000s. This is due to the destabilisation of large glaciers in north-east Greenland and parts of the Russian Arctic as well as the increasing mobility of sea ice. The result: Stones rain down from the melting icebergs, forming new hard-substrate habitats for marine life on the soft seafloor. This gradually alters the existing communities in the deep sea. At the same time, the increasing presence of icebergs also poses greater risks to shipping and fisheries. These findings were reported by a research team led by the Alfred Wegener Institute and the Woods Hole Oceanographic Institution in the journal Nature.

The deep sea is a unique ‘evolutionary engine’ with one of the richest and most unexplored sources of genetic diversity on Earth, according to a major new study that has assessed its potential to transform biotechnology and DNA sequencing technologies.