News
Tough Year for the Florida Manatee
Manatees are imperiled from all sides. In downlisting manatees from “endangered” to “threatened” under the Endangered Species Act, the U.S. Fish and Wildlife Service asserted that threats are under control. As this summer has sadly demonstrated, nothing could be further from the truth.
The biggest threats manatees continue to face are the result of human impacts. As of August 12th, 97 manatees were believed to have died from red tide in Southwest Florida. Others are victims of the toxic cyanobacterial bloom associated with discharges from Lake Okeechobee. Together, these algae blooms consume oxygen from the water, cause respiratory and neurological distress, and kill acres of aquatic vegetation essential to manatee survival.
It is imperative to acknowledge that while red tides do occur naturally, the frequency and intensity of recent events are firmly attributable to human activity. Land-based nutrients feed red tides, which are further exacerbated by the deluge released from Lake Okeechobee. The sources of these nutrients are many. Septic systems, agricultural fertilizer, animal waste, and urban runoff are poorly managed throughout the state and end up in our springs, rivers, and coastal systems where they fuel the toxic blooms that threaten both natural and economic resources.
This year also continues to be a record year for manatee mortality from watercraft strikes. So far in 2018, boat collisions have resulted in 75 manatee deaths. This past winter was also the worst for mortality from cold stress since 2011.
Meanwhile, the laws that have protected manatees and their habitat for decades are under attack. In Congress, the Endangered Species Act faces an onslaught of bills designed to weaken it. The Department of Interior recently proposed new rules undermining the Act, including removal of key provisions that protect threatened species and regulations governing interagency consultation procedures. These regulations are crucial to protecting manatees and their habitat.
Alarm bells are ringing with the public and media now that the problem is so visible, but this problem has been brewing for years. Save the Manatee Club has attempted to address the root causes of these problems: working with the state to develop stronger plans to manage nutrients in important watersheds and to establish additional protected areas for manatees. But we need the public’s help. Clean water and the protection of our nation’s wildlife are nonpartisan issues, and we need leaders who understand the importance of these resources.
For information on contacting your elected officials and other actions you can take, please go to savethemanatee.org/action.
Marine Life & Conservation Blogs
Book Review: Shells of the World
Shells of the World: A Natural History by M.G. Harasewych
Shells of the world is a guide to the world of marine, shelled molluscs. And what a varied and interesting world it is. Some of my favourite things to find on a dive are detailed in this book, including disco clams (or Electric File Clams as they are correctly names), the cephalopods, giant clams and sea hares. There are also many on my wish list, top of which is the Nautilus.
Each chapter provides a detailed description of the species, along with beautiful images. You can dive deeper and discover where they live, both with global distribution and the habitat they prefer. Learn about their diet, reproduction and diversity.
Having dipped in and out of this lovely book over the past few weeks, it has inspired me to learn more about this group of animals that we see on most divers, wherever we are in the world. Some of the shells are incredibly intricate and beautiful. I have always agreed with never collecting, or touching, marine life. The description of a certain set of cone shells should be a warning to those that are happy to pick up marine life! One of the cone shells has a local name called the cigarette snail. Why? Because once the venom is in your system from this animal, you only have time to smoke one cigarette before the affects of the venom are fatal!
What the publisher says:
Mollusks are invertebrate animals with a remarkable natural history and a rich fossil record, and their shells are prized for their breathtaking variety and exquisite beauty. Shells of the World provides a wide-ranging look at the incredible diversity of marine mollusks. An informative introduction outlines the lineages covered, followed by a directory section, split into classes, that profiles a broad selection of different taxa to give a sense of their sheer numbers and variety.
- Features hundreds of beautiful color photos, depicting both the live animals and their shells
- Discusses mollusk evolution, anatomy, life cycles, behavior, and ecology
- Describes unique characteristics, distribution, habitat, and size
- Provides valuable insights into the conservation of the world’s marine mollusks
- Ideal for malacologists and shell collectors everywhere
About the Author:
M. G. Harasewych is research zoologist emeritus and former curator in the Department of Invertebrate Zoology at the Smithsonian Institution’s National Museum of Natural History. A fellow of the American Association for the Advancement of Science, he is the author (with Fabio Moretzsohn) of The Book of Shells: A Life-Size Guide to Identifying and Classifying Six Hundred Seashells.
Book Details
Publisher: Princeton University Press
Hardcover
Price: £25
ISBN: 9780691248271
Published: 9th April, 2024
Gear News
Go anywhere with Stahlsac
Stahlsac dive bags and travel luggage are built for our community of divers, surfers, kayakers and outdoor explorers who need bags that are constructed with durability, toughness, and the highest quality the industry has ever seen. We were founded by one man determined to build better watersports and dive bags, and today, that mission is carried on by many. Adventure doesn’t just present itself; it requires discovery. When we design dive bags, we make sure they are tough enough for you to explore in all conditions—warm and cold, wet and dry—to the nearest and farthest reaches of the earth. And for those times you want to push the boundaries of adventure, Stahlsac dive bags make sure you can truly GO ANYWHERE.
Abyss Duffels
Made to be your partner-in-crime on every adventure, Stahlsac’s Abyss Duffels protects your gear from Mother Nature’s worst. Tough and 100% waterproof with double-TPU nylon material that shrugs off daily wear-and-tear, and RF-welded seams further boost the bag’s potential for lifelong exploring. Get Wet. Get Lost. Go Anywhere with Abyss.
- A weatherproof duffel for trips, travel, and adventure
- Ultra-durable double-TPU nylon protects your gear
- Material repels water and keeps your equipment dry
- RF-welded seams are flush, tough, and waterproof
- Removable straps transform duffel into backpack
- Zippered internal stow compartments carry essentials
- External zippered flap is easy to open and close
- Welded external handles make transporting a breeze
Panama Mesh Backpack
The most copied design in scuba diving, the Stahlsac Panama Mesh Backpack is the “original” design and features two high-density foam padded shoulder straps, extra durable polyester mesh, duffel bag handles and our unique zippered dry pocket inside that combines with a wet pocket outside. The bottom’s built from reinforced 18-gauge PVC nylon to combat the wear and tear of your active coastal lifestyle, and, as a bonus in every bag, we supply a 12″ x 12″ mesh drawstring satchel for extra stowing utility. Pack up your beach kit and go.
- Density foam padded shoulder straps
- Outside wet/dry pockets
- 2 Carry handles
- Tough, snag-resistant polyester mesh
- Reinforced PVC bottom
For more information about Stahlsac bags, visit www.stahlsac.com/dive-bags.
Sea & Sea is the home of Stahlsac and other leading diving brands in the UK.
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