Tag Archives: disease

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Fishing Line and “No-Take” Zones Studied to Combat Coral Disease

Coral CoE is at it again trying to understand how human impact can effect change on coral reefs around the globe. Studying marine reserves in and around the Great Barrier Reef scientists “surveyed more than 80,000 corals around the Whitsunday Islands for six different diseases that commonly harm reef corals around the world.” -Lead researcher, Dr Joleah Lamb from Coral CoE. What they found was that areas protected from human activity (no-take marine reserves) had a much lower amounts of indigenous disease, and that coral actually have increased rates of health.150602130652_1_900x600“We found three coral diseases were more prevalent on reefs outside no-take marine reserves, particularly on reefs with high levels of injured corals and discarded fishing line. Fishing line not only causes coral tissue injuries and skeleton damage, but also provides an additional surface for potential pathogens to colonize, increasing their capacity to infect wounds caused by entangled fishing line,” added Dr Lamb. “No take marine reserves are a promising approach for mitigating coral disease in locations where the concentration or intensity of fishing effort is relatively high,” says Professor Garry Russ from the Coral CoE. Read more here!… More:

Mystery Circles on Seahorse Solved? Watch out for the Asterina Stars

Asterina seastar on glass. Photo by Vishal BhaveCC BY-NC-SA When are spots on a seahorse not spots? When they’re starfish bites. Recently, a fellow seahorse keeper Adrienne Smith asked about some unusual markings on her seahorses.

The Marine Aquarist’s Greatest Asset

Patience, much like in many other aspects of the hobby, is important to creating a thriving coral gardenIf someone were to ask you (perhaps with a gun held to your head, as is so often the case in these hypothetical scenarios) to identify the one thing that no aspiring marine aquarist should be without, what would your answer be? A top-of-the-line protein skimmer? The best synthetic sea salt mix on the market? An exceptional water-flow scheme? A high-tech controller to monitor and maintain proper water parameters? While state-of-the-art gear helps make a successful marine aquarium more attainable to the average person, the most important tool for any hobbyist is something you can’t buy at your LFS or on the internet. Rather, it’s a personality trait that you’re either born with or must learn to practice: patience

Reef Threads Podcast #205

Support St. Jude research and give yourself a chance to win this reef system.We’re back again, this week to talk about our “Where Do You Listen” contest, the St. Jude/Reef Savvy reef system raffle, keeping sun corals, and five quarantine-tank myths. Download the podcast here, or subscribe to our podcasts at iTunes. Also, follow us on Twitter at reefthreads.—Gary and Christine St. Jude raffle Quarantine myths

Fish Health Through Slime

Copperband Butterflyfish (C. rostratus) and Yellow Multibanded Pipefish (D. pessuliferus)Fish diseases—they are the meat of fish forums and the subject that takes up the most ink (or whatever causes words to form on a computer screen), so for today’s post, I am going to discuss fish immunity in relation to fish slime. Fish, like every organism, have an immune system that is specifically designed to function in the environment they live in, using as its source of energy the food that the creature is able to acquire through its intake devices, or mouth parts. The immune system is one of three parts of a fish that needs to be fueled to keep the fish operating at peak efficiency. The other two parts are growth and reproduction. If fish don’t take in enough food or get the wrong types of food, there will be less energy to fuel those systems properly and one or all will suffer.

Anti-HIV Protein Found in Cnidarians

A recent chance discovery by scientists that were thumbing through the National Cancer Institute’s extract repository, has produced a possible anti-HIV protein from the coral phylum Cnidaria. The proteins discovered were then purified and tested on HIV cells and scientists found that these proteins attached themselves to HIV cells inhibiting the transfer into the human bodies T-cells (the most targeted cell by HIV). Senior investigator of this study Barry O’Keefe adds: “The natural products extract repository is a national treasure, you never know what you might find. Hopefully, discoveries like this will encourage more investigators to use this resource to identify extracts with activity against infectious disease.” Read more here!ElecMicro_of_HIV_Retrovirus_serum_isolate_Samp-HM47More:

7 Guidelines for Mindful Medication of Marine Aquarium Fish

Closely observing your tank inhabitants and identifying problems is important for proper response and treatmentLet’s face it, when a fish in our care exhibits symptoms that might suggest disease, we want to fix the problem and we want to fix it fast. What that usually means is running to the local fish store and frantically scanning the medication aisle for a product that seems to cover the condition in question and, even better, promises a quick, easy cure. But in our haste to dose the aquarium, it’s all too easy to overlook the fact that imprudent use of aquarium medications can actually be much more harmful to fish than the maladies they’re formulated to treat—in other words, if medications aren’t used properly, the cure can be worse than the disease. Before administering any medication to your marine aquarium fish, consider the following 7 guidelines: #1 Rule out environmental factors first An ammonia spike, inappropriate water chemistry or temperature, and excessive dissolved pollutants are just a few examples of environmental conditions that can cause fish to manifest physical or behavioral symptoms similar to those brought on by disease, such as: Rapid respiration Gasping at the surface Dashing around the tank Scraping on objects Loss of appetite Hiding or skulking in a corner of the tank Before assuming a parasite or pathogen is to blame and turning to medications, you should first conduct a full range of water tests to rule out an environmental cause. #2 Can’t ID the disease? Don’t medicate! Effective disease treatment depends on accurate diagnosis. If you don’t know exactly what disease you’re dealing with—or you can’t at least arrive at a good educated guess—don’t risk medicating. You might just make matters worse. Ideally, you should seek the advice of a veterinarian with expertise in fish diseases (if you’re fortunate enough to have access to such an individual) or a knowledgeable, trusted dealer before selecting and administering a medication

Interzoo 2012: The Prodibio booth

Walking inside the Stand 4, we visited the small stand Prodibio that  seemed extremely interesting. I presume that you all know the Prodibio as one of the most important companies in the production of bacteria for aquarium, and that therefore many of you have used the mythical glass vials.

  During the show Prodibio presented a new protocol for the treatment of diseases in aquariumMore:

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