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☆ Soviet whalers wiped out blue whales from part of the Indian Ocean 50 years ago. Underwater audio reveals the gentle giants have returned.
▼ + stars: | 2023-11-28 | by ( Kelsey Vlamis | ) www.businessinsider.com time to read: +3 min

Blue whales near the Seychelles were wiped out half a century ago by whaling. They found blue whales had returned to the area, and think the whales may be using it for breeding. AdvertisementA population of blue whales near the Seychelles islands in the Indian Ocean that was wiped out half a century ago has returned after the area was protected, according to a new study. Like many whale species, blue whale populations were depleted by commercial whaling in the 20th century. After several reported sightings of blue whales near the Seychelles, scientists set out to determine if the species had really returned.

Persons: —, Kate Stafford, it's, Stafford Organizations: Service, Research, Oregon State, Mammal Institute, BBC, Soviet Union, International Union for, Nature Locations: Seychelles, Soviet

MADISON, Wis. (AP) — The Great Lakes’ frigid fresh water used to keep shipwrecks so well preserved that divers could see dishes in the cupboards. Quagga mussels, native to Russia and Ukraine, were discovered in the Great Lakes in 1989, around the same time as their infamous cousin species, zebra mussels. Scientists believe the creatures arrived via ballast dumps from transoceanic freighters making their way to Great Lakes ports. They consume so many nutrients at such high rates they can render portions of the murky Great Lakes as clear as tropical seas. After 30 years of colonization, quaggas have displaced zebra mussels as the dominant mussel in the Great Lakes.

Persons: Tamara Thomsen, Wayne Lusardi, ”, they're, quaggas, Harvey Bootsma, Edmund Fitzgerald, Gordon Lightfoot, Daniel J, Carl D, Bradley, Frank H, Moody, Brendon Baillod, Bob Jaeck, Baillod, Milwaukee's Bootsma, “, ” Baillod Organizations: Tuskegee, “, University of California, Riverside’s, Species Research, Biologists, University of Wisconsin, Milwaukee's, Freshwater Sciences, Tuskegee Airmen, Tuskegee Army Air Field, UW Locations: MADISON, Wis, Canadian, Ontario, ” Wisconsin, Superior, Lake Huron, Swiss, Russia, Ukraine, Great, Great Lakes, Lake Michigan, Lake Superior, Cedarville, Straits, Mackinac, Alabama, Madison, Trinidad, Algoma , Wisconsin, Michigan, Milwaukee, Detroit, Chicago, Toledo , Ohio

☆ Burmese pythons are being spotted farther and farther north in Florida and could reach other states, experts warn. 'It really does feel like an alien invasion,' one scientist said.
▼ + stars: | 2023-09-07 | by ( Jenny Mcgrath | ) www.businessinsider.com time to read: +10 min

How Burmese pythons got from Asia to FloridaThe first definitive recording of a Burmese python in the Florida Everglades was in 1979. "Then I just developed this mantra over the years of don't underestimate the Burmese python," he said. Pythons have invaded the Florida Everglades and proven a formidable invasive species that may never be fully eradicated. While state-regulated programs have removed over 13,700 snakes from the Florida Everglades, they're usually the ones found near roads and canal levees. The biggest question researchers need to answer is how many Burmese pythons are actually in Florida at the moment.

Persons: Donnie Darko, Donnie, Ian Bartoszek, Bartoszek, Melissa Miller, Miller, doesn't, would've, he's, Joe Raedle, They've Organizations: Service, Conservancy, States Geological Survey, University of Florida, The Conservancy Locations: Florida, Wall, Silicon, Southwest Florida, States, Asia, Thailand, Myanmar, Vietnam, The, Okeechobee, Pacific, Oregon, Washington, Idaho, Canada, sawgrass

☆ O nouă specie de balene albastre, descoperită în Oceanul Indian
▼ + stars: | 2020-12-28 | by ( ) www.jurnal.md time to read: +2 min

O lucrare publicată în revista Endangered Species Research și citată de New York Times susține că aceste balene albastre au propriul cod de sunete: lent, suflat, distinct de orice alt sunet specific balenelor, scrie Biziday. “Această descoperire ne reamintește că mare parte din oceanele noastre este încă neexplorată”, spune Asha de Vos, un biolog marin care a studiat balenele albastre din Oceanul Indian. După ce au auzit zgomotele balenelor albastre printr-un recorder, cercetătorii au observat că acestea sunt diferite și au decis să exploreze mai mult. Este nevoie de aprofundarea studiilor pentru o comparație elaborată a limbajului balenelor, dar acestea își petrec cea mai mare parte a vieții departe de țărm, fiind dificil de studiat. Vânătoarea de balene din secolele al XIX-lea și al XX-lea a dus la dispariția a sute de mii de exemplare, iar acum se estimează că au rămas între 10.000 și 25.000 de balene albastre.

Persons: - lea Organizations: New York Times Locations: New York, Indian, Madagascarului

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