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One of the world’s most destructive invasive species is gaining new ground — or water — in Canada and up to Alaska. Carcinus maenas, which translates to “raving mad crab,” outcompetes many local crab species in devouring clams, oysters, and mussels, and they sometimes even eat other crabs and juvenile fish. They destroy seagrass, an essential habitat for juvenile salmon, herring, rockfish, and many other marine animals.
To pee or not to pee? That is not the question for technical divers, instructors, or others who spend long hours in the water. Proper hydration and comfort ensure that urine will flow. The question is, What’s the best way to handle it?
Young women beginning their careers as dive instructors regularly ask me how to be heard on a dive boat. Their experience is that guests don’t naturally listen to their directions. The dive industry has improved, and I don’t want to downplay the vast improvements that have already happened for women dive professionals. But this is a common question, so it remains relevant.
Whale sharks are easy. Basking sharks are hard. Whale sharks usually inhabit warm, tropical waters, while baskers prefer cooler, temperate regions.
BEING STUNG BY A LIONFISH is like being bitten by a poisonous snake. I found that out the hard way.
DAN medics and researchers answer your dive medical questions.
Everything changed for Una-Una on July 14, 1983, when a volcanic eruption destroyed the central hub of Indonesia’s Togean Islands in central Sulawesi. Lava covered 90 percent of the island, and thick, black smoke rose into the sky more than 9 miles high. The Indonesian Navy had evacuated all 7,100 inhabitants when the volcano gave signs of its impending eruption, preventing any loss of life.
LAUT ADRIATIK TIMUR sebening kristal memang menjanjikan dan menggoda. Pulau-pulau kecil dengan pantai berbatu, tebing-tebing tegak, dan danau-danau tersembunyi, menawarkan berbagai lingkungan dan ekosistem yang termasuk yang paling utuh dan murni di Mediterania. Bagian selatan Laut Adriatik di Kroasia memiliki dataran tinggi berbatu yang curam dengan banyak jembatan, retakan, dan gua. Laut telah membuka celah-celah di bebatuan berpori, mengukir dan membentuk katedral yang seluruhnya terbuat dari batu kapur.
KETIKA SAYA MEMBAYANGKAN SURGA, yang terbayang adalah air biru yang hangat, orang-orang yang ramah, dan tempat menyelam yang masih alami dan belum banyak dikunjungi orang. Tempat-tempat seperti itu jarang ditemukan sekarang ini dan biasanya mahal untuk dikunjungi - atau itulah yang saya pikirkan sampai saya mengetahui tentang St Eustatius, sebuah pulau kecil di Karibia yang juga dikenal sebagai Statia. Terletak di antara Saba dan St Kitts di Karibia Belanda, Statia hanya berjarak satu penerbangan singkat dari St Maarten.