For more than five years, divers and scientists along the U.S. West Coast have watched a disaster play out before their eyes. Sunflower sea stars fell victim to a wasting disease, which wiped out roughly 90 percent of the global population in 2013. Seven years later, scientists see no signs of recovery. Without the sea stars, the population of purple urchins that sea stars eat has exploded and mowed down entire forests of bull kelp. The West Coast experienced intense ocean warming from 2014 to 2017, and by 2015 divers began seeing urchin barrens — vast swaths covered in piles of spiny creatures and little else.
If you like the idea of a liveaboard adventure with remote, open-ocean diving where your dive boat is likely the only one on the reef, you’ll love a trip to Flower Garden Banks. It remains one of the best-kept secrets for wilderness diving in the continental U.S., where you can expect rare encounters such as a longlure frogfish on a sponge, scalloped hammerhead sharks feeding or a whale shark swimming by.
Pulmonary barotrauma can occur in a shallow swimming pool if a diver holds their breath during ascent or inadvertently floats to the surface while holding their breath. Most dive-related pulmonary barotraumas occur in compressed-gas diving due to pulmonary overinflation during a breath-hold ascent. Pulmonary barotrauma can occur even with normal breathing if there is an obstruction in the bronchial tree that prevents one lung segment’s normal ventilation.
Located in the Bay Islands of Honduras, Roatán is a tropical gem nestled in the turquoise waters of the Caribbean Sea. The largest of the Bay Islands, Roatán sits about 30 miles off the Honduran coast between Utila and Guanaja. Its fringing reef system makes up the southernmost edge of the Mesoamerica Reef (the world’s second-largest reef system) and is arguably Roatán’s biggest attraction.
For the founders of three of Indonesia’s dive resorts, the mission was clear: Protect the region’s natural resources by providing economic, educational and environmental benefits while empowering residents to participate in the process. These visionaries blazed a path for a “blue economy” — ensuring sustainable use of ocean resources while promoting economic growth and improved livelihoods for the people who live there.
A diver didn’t heed the divemaster’s warning and was lost at sea. Deploying his large surface marker buoy helped with his rescue. DAN recommends that divers always listen to the dive briefing and follow all directions and always carry an SMB and reel. If your breathing-gas supply is critically low, get to the surface at a safe ascent rate, and then monitor for signs of decompression illness. It is better to deal with DCI on the surface than to run out of breathing gas at depth.
Literasi laut penting bagi masyarakat untuk membuat keputusan yang tepat tentang upaya restorasi laut dan untuk meningkatkan tanggung jawab individu dalam upaya tersebut. Generasi muda sangat penting untuk mengembangkan masyarakat yang melek laut, tetapi pendidikan ilmu kelautan yang memadai merupakan tantangan bagi sekolah-sekolah yang kurang terlayani dan kekurangan dana. Kesempatan pendidikan informal yang dijalankan oleh Black Girls Dive Foundation (BGDF) mengisi kesenjangan pengetahuan dan merupakan sumber daya bagi siswa yang berwawasan lingkungan.
Pada Musim Gugur 2013, istri saya, Liv, dan saya mengawasi 16 penyelam baru yang mengalami jarak pandang rendah untuk pertama kalinya. Tempat pelatihan kami memiliki kedalaman maksimum [...]
Kisah pencarian kapal selam Jepang I-52 adalah salah satu dari dua penemuan yang dipisahkan oleh waktu dan tujuan. Dalam kegelapan malam di Samudra Atlantik pada tahun 1944, kapal anti-kapal selam Angkatan Laut AS mencari pertemuan rahasia antara kru angkatan laut Jerman dan Jepang. Beroperasi berdasarkan informasi intelijen yang diperoleh, mereka berusaha mengejutkan dan menenggelamkan kedua kapal selam tersebut. Setengah abad kemudian, I-52 masih belum ditemukan di dasar laut, tetapi kali ini pencarian dilakukan dalam kegelapan lautan dalam untuk mengejar kemungkinan, bukan kehancuran.
