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Vitamin B1 gains in wild lake trout embryos challenge assumptions drawn from hatcheries

المصدر: Phys.org - latest science and technology news stories · نُشر

Vitamin B1 gains in wild lake trout embryos challenge assumptions drawn from hatcheries
المصدر: Phys.org - latest science and technology news stories

For decades, fisheries managers have struggled to restore recruitment in wild lake trout populations across the Great Lakes region, with limited success. Returning this species to its former abundance is hampered by overfishing, sea lamprey predation, invasive species and habitat

For decades, fisheries managers have struggled to restore recruitment in wild lake trout populations across the Great Lakes region, with limited success. Returning this species to its former abundance is hampered by overfishing, sea lamprey predation, invasive species and habitat alterations.

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Sharks can hear nearly 250 feet away and pinpoint the source

Wild blacktip sharks can detect low-frequency sounds from nearly 250 feet away, according to experiments conducted off the Florida coast. The sharks not only heard the sounds but sharply changed direction away from them, suggesting they could pinpoint where they were coming from.

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