« Archives in December, 2012

Reducing Lionfish Polulations..

Faced with a dramatic reduction of native populations of fish–which support fishing and diving recreational tourism–nearly everyone is working to reduce the lionfish populations. From spearfishing to hook and lining, any method to get them out of the water is seen as a step in the right direction. Citizen organizations like LionFishHunters and The Lionfish PSA have sprung up to educate the public and direct us toward steps necessary to control this opportunistic species.

Especially in the Florida Keys, locals are trying hard to put lionfish on the menu in seafood restaurants, hoping we can eat them into submission. Lionfish is reported to have an excellent taste and is often compared to hogfish or snapper. It’s not dangerous to eat because the poison is only contained in the spines. The meat is safe to eat.

Want to know how to clean and cook a lionfish? Here’s a great 4 minute video to show you how:

For a very well produced video by CNN on the lionfish problem, check out the 7 minute video below:

Below are some additional links to information about the Florida lionfish “invasion.”

Reef.org – Report a lionfish sighting and learn more about the whole lionfish thing, including links to some restaurants that have lionfish on the menu.

Mote Tropical Research Lab lionfish info. An excellent web site with a lot of information and links to other resources.

Content courtesy of David McRee..Beachhunter.net

http://www.blogthebeach.com/2012/nature/fish/lionfish-in-florida-problems-and-solutions

Related posts:

  1. Indo-Pacific Lionfish Threaten Florida
  2. Product Review: First Aid Kit for Marine Animal Stings: Jellyfish, Stingrays, Urchins, Fire Coral
  3. Dolphin Stranding with Happy Ending

Lionfish envenomation 1st aid kit developed by Ocean Care Solutions

Lionfish are colorful marine fish with venomous spiky fin rays. Its presence is increasing around the seas of the world and present a danger to fishermen, divers and swimmers. Its venom can lead to extreme pain, nausea, vomiting, fever, breathing difficulties, convulsions, dizziness, redness on the affected area, headaches, and numbness although its venom is rarely fatal.

This chilling animated graphic shows the population explosion of poisonous lionfish in Florida, the Caribbean, the Bahamas and the Atlantic seaboard between 1986 and 2011: http://nas.er.usgs.gov/taxgroup/fish/Lionfishanimation.gif 

Treating Lionfish Sting Injuries

Being stung by the long, thin, needle-sharp spines of even a small lionfish generally results in a fire-like pain which is often localized to the area stung, but may travel along the extremity. Expect swelling. Needless to say, a sting to the head, neck or body cavity is more serious and should be considered a medical emergency. It is possible that a portion of the spine may break off in the wound, requiring surgical intervention. Infection is always a possibility. A host of other symptoms and complications are possible.

First-aid for a lionfish sting (before you can get to a doctor) mainly consists of applying heat, which destroys the venom. The problem is, where are you going to get heat if you are out on a boat or standing on a dock?

Ocean Care Solutions has developed a lionfish sting first-aid kit that has what you need. It should be available around mid-January 2013 and will retail for around $20. The supplies contained in the kit are based on treatment protocols with scientific and medical support and derive from medical data and injury reports.
Ocean Care Solutions Lionfish Sting First-Aid Kit

What’s in the OCS Lionfish Sting First-Aid Kit?

  • Moist towelette for cleaning hands
  • Latex-free gloves
  • Gauze pad to help slow bleeding
  • Sterile saline solution for rinsing wound
  • Forceps / tweezers to remove spines
  • Instant Heat Pack to alleviate pain
  • Elastic wrap for holding heat pack in place
  • Ocean Care Solutions triple antibiotic ointment
  • Adhesive bandages

Ocean Care Solutions is a pioneer in the development of effective, convenient and affordable first-aid kits for marine sting injuries, including for jellyfish, stingrays, sea urchins, fire-coral, and Portuguese Man-of-War.

Ocean Care Solutions’ products were nominated for the 2012 World Open Water Swimming Offering of the Year.

Below are the instructions as shown on the back of the foil packet which houses the kit. Click on the image below to enlarge it enough to read:

Click image to enlarge

Content courtesy of David McRee..Beachhunter.net

http://www.blogthebeach.com/2012/nature/fish/lionfish-in-florida-problems-and-solutions

Ocean Care Solutions Does Its Lion Share Of Work

 

TUESDAY, DECEMBER 18, 2012

Posted by Steve Munatones

Ocean Care Solutions Does Its Lion Share Of Work

Ron Adley announced a new Ocean Care Solutions for Lionfish Kit. “The kit will be available by January 15th. It is another product in our increasing line of marine sting products including a newly formulated jellyfish sting relief spray.”Lionfish are colorful marine fish with venomous spiky fin rays. Its presence is increasing around the seas of the world and present a danger to fishermen, divers and swimmers. Its venom can lead to extreme pain, nausea, vomiting, fever, breathing difficulties, convulsions, dizziness, redness on the affected area, headaches, and numbness although its venom is rarely fatal.

As Adley knows well from his travels, lionfish stings can produce discomfort over several days as well as severe allergic reactions that can cause breathing difficulties, swelling of the tongue, and slurred speech.

Ocean Care Solutions‘ products were nominated for the 2012 World Open Water Swimming Offering of the Year.The nomination of Ocean Care Solutions reads, “Care is its middle name. Ocean Care Solutions is working hard to help stem the tide of the pain and discomfort caused by stinging organisms. Its products enable comforting relief from a number of jellyfish, Portuguese man o war, sea urchins, fire coral and stingrays.

Ocean Care Solutions goes beyond supplying a wide range of first aid kits that are widely acclaimed the world over. It provides information, a constant source of education about the global proliferation of jellyfish in the world’s oceans.

For its desire to relief pain by working directly with the stakeholders in the open water swimming world, for its wide range of soothing solutions, for its sharing of information about the sea stingers that are a growing menace in the aquatic world, the Ocean Care Solutions line-up is a worthy nominee for the 2012 WOWSA Open Water Swimming Offering of the Year.”

Copyright © 2012 by Open Water Source

The Mangrove jellyfish…

Mangrove jelly fish (Cassiopea xamachana) is so called because it is mostly found in the roots of mangroves in the southern Gulf of Mexico, Caribbean, and other tropical waters. They are also called the Upside Down jellyfish because they tend to settle upside down in muddy and shallow waters. On first sight, they do not really resemble a jellyfish, instead looking more like a sea anemone, or a bluish green flower on the waterbed. However, this appearance also provides the jellyfish with very effective camouflage and protects it from likely predators.

The jellyfish catches it food, mostly plankton and zooplankton, when it gets paralyzed by these stinging cells. The mangrove jellyfish also have venom filled nematocysts on its tentacles for the same purpose of stinging its prey and then transporting it near the mouth for ingestion. You may be surprised to know that unlike other jellyfish, the mangrove jellyfish does not have only a single mouth. In fact, it has mutated to form a number of secondary mouths. The primary mouth reduces the food into tiny fragments, which are then ingested by these numerous secondary mouths.

As far as humans are concerned, they are most likely to be caught up in the mucus columns in the water that contain stinging cells of the mangrove jellyfish. The stinging cells are slightly toxic in nature and can cause severe itching. However, if a human disturbs an entire swarm of mangrove jellyfish, they will all launch upwards towards the surface of the water together and release more stinging cells into the water. This situation can be vary dangerous to humans.

Ocean Care Solutions..the solution for marine sting injuries…

 

Lethal stings from the Australian box jellyfish could be treated with zinc

Box jellyfish of the Chironex species are among the most venomous animals in the world, capable of killing humans with their sting. Their venom, though, which kills by rapidly punching holes in human red blood cells, can be slowed down by administering zinc, according to research published December 12 in the open access journal PLOS ONE by Angel Yanagihara from the University of Hawaii and colleagues.

The researchers developed ways to extract venom from the jellyfish, and tested it on human blood and on mice. They found that the venom created pores in human red blood cells, making them leak large amounts of potassium, which causes cardiac arrest and death.

As Yanagihara elaborates, “For over 60 years researchers have sought to understand the horrifying speed and potency of the venom of the Australian box jellyfish, arguably the most venomous animal in the world. We have found that a previously disregarded hemolysin can cause an avalanche of reactions in cells. This includes an almost instantaneous, massive release of potassium that can cause acute cardiovascular collapse and death.”

This shows an Australian box jellyfish.

Yanagihara AA, Shohet RV (2012) Cubozoan Venom-Induced Cardiovascular Collapse Is Caused by Hyperkalemia and Prevented by Zinc Gluconate in Mice. PLoS ONE 7(12): e51368. doi:10.1371/journal.pone.0051368

(Photo Credit: Robert Hartwick)

The authors treated the cells with a zinc compound which inhibits this process, and found that the treatment could slow the pore-forming process in cells, and increased survival times in the mice treated with the compound, zinc gluconate. The research suggests that the venom’s capacity to increase potassium levels is what makes it so dangerous, and that rapid administration of zinc may be a potential life-saver in human sting victims.

Anatomical facts about jellyfish…

The Jellyfish body consists of over 95% water; most of their umbrella mass is a gelatinous material—the jelly—called mesoglea which is surrounded by two layers of protective skin.  The top layer is called the epidermis, and the inner layer is referred to as gastrodermis, which lines the gut.  Jellyfish do not have specialized digestive, osmoregulatory, central nervous, respiratory or circulatory systems.

Jellyfish have no brain or central nervous system, but employ a loose network of nerves, located in the epidermis, which is called a “nerve net”.  Jellyfish have limited control over movement, but can use their hydrostatic skeleton to navigate through contraction-pulsations of the bell-like body; some species actively swim most of the time, while others are mostly passive.

Although counter to the “brainless jellyfish” hypothesis is that some species explicitly adapt to tidal flux to control their location. In Roscoe Bay. B.C., jellyfish ride the current at ebb tide until they hit a gravel bar, and then descend below the current. They remain in still waters waiting for the tide to rise, ascending and allowing it to sweep them back into the bay. They monitor salinity to avoid fresh water from mountain snow melt, again by diving until they find enough salt.

Some jellyfish also have ocelli: light-sensitive organs that do not form images but which can detect light, and are used to determine up from down, responding to sunlight shining on the water’s surface. These are generally pigment spot ocelli, which have some cells (not all) pigmented.

Certain species of jellyfish, such as the Box jellyfish, have been revealed to be more advanced than their counterparts. The Box jellyfish has 24 eyes, two of which are capable of seeing color, and four parallel brains that act in competition, supposedly making it one of the only creatures to have a 360 degree view of its environment.  It is suggested that the two eyes that contain cornea and retina are attached to a central nervous system which enables the four brains to process images. It is unknown how this works, as this animal has a unique central nervous system.

Information and  photo courtesy wikipedia..

Jimble jellyfish invade Balmoral Beach..Australia

RARE blooms of beautiful but dangerous pink stingers have invaded Balmoral Beach over the past five months, making life tough for ocean swimmers.

Jimble jellyfish, like this one pictured, have been spotted in Balmoral waters since mid June.

Jimbles, box-shaped jellyfish with long tentacles, can give a painful but non-deadly sting, resulting in welts that itch for days.

Balmoral swimmer Dave Sanney has given up going in the water since the swarm hit in mid-June, after he was stung several times.  “The most frequent spot to be stung was close to shore and down near the pipe at the Raglan St end of the beach,” he said.

“The sting is like an electric shock but the itchiness is worse – each time symptoms got more severe.”  Jimbles were also spotted in North Harbour, Manly throughout winter but disappeared in the last three weeks.

Mosman resident Mr Sanney, who has swam at Balmoral for nine years, said jimbles usually floated into Middle Harbour once a year during the warmer months but no one could explain why they appeared so early and in such high numbers this year.

Griffith University jellyfish expect Dr Kylie Pitt said marine scientists knew virtually nothing about jimble ecology but this year had been abundant for all types of jellyfish.

“We’ve had reports of huge blooms of jellyfish on Australia’s east and west coasts this year,” she said.  “Whatever’s promoting that is also promoting high numbers of Jimbles in Sydney waters.”

OCS Jellyfish Sting Relief spray is currently being used in NSW and is proven effective on the Jimble…Don’t get stung without it !!

WHAT ARE JIMBLES?

* Cubozoan jellyfish, pink or clear with a box-shaped bell and tentacles at each corner

* Found in waters from Western Australia to southern QLD and occasionally in Sydney Harbour

* Feed on plankton, will give a nasty but non-deadly sting

* You can track sightings at www.jellywatch.org

Article and picture courtesy of mosman-daily-au