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EDIS Update

New and revised publications from the University of Florida Insitute of Food and Agricultural Sciences

    Grass Carp: A Fish for Biological Management of Hydrilla and Other Aquatic Weeds in Florida (BUL867/FA043)

    March 1st, 2013
    Topic(s):Aquaculture, Ecosystems & Species

    Figure 2. A mature grass carp, highly effective in controlling Hydrilla and many other noxious aquatic weeds.Abundant growth of aquatic plants causes serious problems in ponds, lakes, rivers, and irrigation and drainage throughout Florida. In some situations, native aquatic plants become weeds, but most often exotic plants introduced from areas outside the state flourish under the favorable growing conditions found in Florida. Long-term economical solutions to Florida’s aquatic weed problems have been elusive and there is a need for control techniques to alleviate aquatic weed problems. This 6-page fact sheet provides information on a biological method, the grass carp, for management of some of Florida’s aquatic weed problems. Written by David L. Sutton and Vernon V. Vandiver, Jr., and published by the UF Department of Fisheries and Aquatic Sciences, November 2013.
    http://edis.ifas.ufl.edu/fa043

    Lernaea (Anchorworm) Infestations in Fish (FA185)

    March 1st, 2013
    Topic(s):Aquaculture

    Figure 2. Koi infested with numerous female LernaeaLernaea species, commonly known as “anchorworms,” are crustacean, copepod parasites that can infect and cause disease and mortality in many types of freshwater fishes, especially wild-caught and pond-raised species. Infestations with Lernaea are most prevalent in the summer months and occur more commonly in stagnant or slow-moving water bodies. This 4-page fact sheet was written by Natalie Steckler and Roy P. E. Yanong, and published by the UF Department of Fisheries and Aquatic Sciences, December 2012.
    http://edis.ifas.ufl.edu/fa185

    Argulus (Fish Louse) Infections in Fish (FA184)

    March 1st, 2013
    Topic(s):Aquaculture

    Figure 1. Adult Argulus sp. Note eye spots and round suckers on “head” end, and spermatheca on “back” posterior end.Argulus species (Family: Argulidae), more commonly known as fish lice, are members of a large group of branchiuran parasites that infest and cause disease in fish. The argulids are crustaceans and are related to crabs, lobsters, and shrimp. This 5-page fact sheet was written by Natalie Steckler and Roy P. E. Yanong, and published by the UF Department of Fisheries and Aquatic Sciences, November 2013.
    http://edis.ifas.ufl.edu/fa184

    Spring Viremia of Carp (VM142/VM106)

    October 2nd, 2012
    Topic(s):Aquaculture, Ecosystems & Species, Lawn & Garden

    Figure 1. Koi infected with SVCv. Note hemorrhages on body wall.Spring viremia of carp is a viral disease that can cause significant mortality in several carp species including the common carp. It was reported in koi and feral carp in the United States for the first time in 2002. Diagnosis in farm raised fish in the U.S. may result in quarantine of the infected fish and depopulation. This 5-page fact sheet is intended to inform veterinarians, biologists, culturists, and hobbyists about Spring viremia of carp. Written by Barbara D. Petty, Ruth Francis-Floyd, and Roy P.E. Yanong, and published by the UF Department of Fisheries and Aquatic Sciences, August 2012.
    http://edis.ifas.ufl.edu/vm106

    Common Monogenean Parasites of Fishes (FA28/FA033)

    September 5th, 2012
    Topic(s):Ecosystems & Species

    Figure 3. A gyrodactylid from the skin of a goldfish Carassius auratus. The arrows point to the anchors of embryos. Note the lack of eyespots (left, 100x magnification; right, 40x magnification).Monogeneans are a class of parasitic flatworms that are commonly found on fishes and lower aquatic invertebrates. Most monogeneans are browsers that move about freely on the fish’s body surface feeding on mucus and epithelial cells of the skin and gills; however, a few adult monogeneans will remain permanently attached to a single site on the host. Some monogenean species invade the rectal cavity, ureter, body cavity, and even the blood vascular system. Between 4,000 and 5,000 species of monogeneans have been described. They are found on fishes in fresh and salt water and in a wide range of water temperatures. This 10-page fact sheet was written by Peggy Reed, Ruth Francis-Floyd, and RuthEllen Klinger, and published by the UF Department of Fisheries and Aquatic Sciences, June 2012.
    http://edis.ifas.ufl.edu/fa033

    Lymphocystis Disease in Fish (FA181/FA181)

    March 18th, 2011
    Topic(s):Aquaculture

    Lymphocystis is a chronic disease of freshwater and marine fishes caused by infection with an iridovirus known as Lymphocystivirus or Lymphocystis disease virus (LCDV). Infection results in the development of pebble or wart-like nodules most commonly seen on the fins, skin, or gills, although other tissues may be affected. This 5-page fact sheet was written by Roy P. E. Yanong, and published by the UF Department of Fisheries and Aquatic Sciences, December 2010.
    http://edis.ifas.ufl.edu/fa181

    Sharks for the Aquarium and Considerations for Their Selection (FA179)

    February 2nd, 2011
    Topic(s):Aquaculture, Ecosystems & Species

    Sharks are magnificent animals and an exciting group of fishes. And they are becoming increasingly popular as pet animals. The proper care and display of sharks requires great attention to details. This 8-page fact sheet provides critical points aquarists must consider in deciding whether or not to include sharks in their aquaria. A table of the most popular sharks kept in public and home aquariums is provided to facilitate species selection. Written by Alexis L. Morris, Elisa J. Livengood, and Frank A. Chapman, and published by the UF Department of School of Forest Resources and Conservation Program in Fisheries and Aquatic Sciences, December 2010.
    http://edis.ifas.ufl.edu/fa179

    FA178/FA178 Perkinsus Infections of Bivalve Molluscs

    December 6th, 2010
    Topic(s):Aquaculture

    FA178, a 7-page fact sheet by Denise Petty, describes the infections caused by this group of protistan parasites that can infect shellfish — signs of infection in molluscs, life cycle, transmission, diagnosis, regulatory concerns, treatment and disinfection of facilities, and food safety. Includes references and glossary. Published by the UF Department of School of Forest Resources and Conservation, August 2010.
    http://edis.ifas.ufl.edu/fa178

    FA177 Teach Aquaculture Curriculum: Introduction

    August 10th, 2010
    Topic(s):4-H Youth Development, Agriculture, Aquaculture

    FA177, a 2-page fact sheet by Cortney L. Ohs, R. Leroy Creswell, Amber L. Garr, Carlos V. Martinez, Brian E. Myers, Elisa J. Livengood, Craig S. Kasper, and Frank A. Chapman, introduces the Teach Aquaculture Curriculum. The curriculum is designed to engage students in aquaculture and the aquatic sciences through a series of hands-on activities involving all the sciences, mathematics, reading, and writing. Each activity in the series includes student performance standards. Published by the UF School of Forest Resources and Conservation, Program in Fisheries and Aquatic Sciences, July 2010.
    http://edis.ifas.ufl.edu/fa177

    FA168 Candidate Species for Florida Aquaculture: Pinfish, Lagodon rhomboides

    June 10th, 2010
    Topic(s):Aquaculture

    FA168, a 6-page illustrated fact sheet by Cortney L. Ohs, Scott W. Grabe, Matthew A. DiMaggio, describes this marine baitfish of the Sparidae (porgy/sea bream) family which has potential for culture in the southeastern United States — general description, geographic distribution and habitat, nautral history, culture techniques, broodstock nutrition, broodstock reproduction, hatchery, nursery, growout, disease, and market. Includes references. Published by the UF Program in Fisheries and Aquatic Sciences, School of Forest Resources and Conservation, May 2010.
    http://edis.ifas.ufl.edu/fa168

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