Across the small islands of eastern Indonesia that lie within the Wallacea region, one of the world’s richest marine biodiversity regions, coastal communities are reviving ancient customary systems to safeguard marine ecosystems from destructive fishing and habitat loss. This movement is the centerpiece of Jejak Wallacea, a recent documentary highlighting how local empowerment can succeed where top-down conservation often fails, reports Mongabay’s Hans Nicholas Jong. The film features initiatives across four provinces: East Nusa Tenggara, South Sulawesi, Southeast Sulawesi and Central Sulawesi. These communities have turned to locally rooted methods of reverse biodiversity loss, such as seasonal fishing closures, customary sanctions and mangrove restoration. In Solor, East Nusa Tenggara, residents established traditionally protected marine areas that they refer to as “marine granaries” (kebang lewa lolon) to restore coral reefs and created turtle hatcheries. They are also moving away from harmful blast fishing. “What we chose was conservation, but based on local wisdom,” Vero Lamahoda, director of the local foundation Yayasan Tanah Ile Boleng that is supporting the communities in the transition, said in the documentary. In Southeast Sulawesi, the village of Wabula employs a customary system called Kaombo, which regulates access to traditionally protected areas like seagrass beds and mangroves. Violators face customary fines or rituals like Kaleo Leo, where suspects are dunked into the sea, and the individual who surfaces first is considered the guilty party. Similarly, communities on Langkai and Lanjukang islands in South Sulawesi utilize periodic closures of marine areas for octopus fishing to allow populations to…This article was originally published on Mongabay

Severed tissue from a cold-water sea cucumber can survive, heal, and even move independently for years in natural seawater, researchers recently found. Some animals have the ability to regenerate tissues and body parts. Certain lizards can regrow their tails, for example. Some sea stars and sea cucumbers, including Psolus fabricii that live in the cold waters of the Atlantic and Arctic oceans, can regrow their severed arms or halves. However, researchers in the study showed that the discarded parts of a sea cucumber, instead of dying, can also remain viable for long periods of time. “It’s like a lizard that loses its tail,” study co-author Rachel Sipler from Memorial University of Newfoundland in Canada, said in a statement. “We know some lizards can grow new tails; we’re talking about whether the tail can grow a new lizard.” Sipler and her colleagues removed parts of tentacles, feet and the main body from three Psolus fabricii individuals and placed them in natural seawater in the laboratory. The tissues showed active immune responses, cell diversification, and the ability to absorb nutrients (amino acids) dissolved in the seawater. Even when the researchers stopped the experiments after three years, the tissues continued to survive. “We haven’t grown a new, complete sea cucumber yet, but we are seeing pretty stunning growth and diversification of cells literally years after this tissue was removed,” Sipler said in the statement. Cell lines that are “immortal” and can perpetuate indefinitely are crucial for biomedical research. However, most such “immortal” cell…This article was originally published on Mongabay