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The Amphibian Chytrid Batrachochytrium dendrobatidis Occurs on Freshwater Shrimp in Rain Forest Streams in Northern Queensland, Australia

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Abstract

Chytridiomycosis is a disease of amphibians caused by the chytrid fungus Batrachochytrium dendrobatidis. It can be highly virulent and is unusual in that it appears to drive many host species to local extinction during outbreaks. One mechanism that could facilitate this is the ability to grow saprophytically or on alternative hosts. This is common in other chytrids but has not been demonstrated for B. dendrobatidis in the field. B. dendrobatidis can grow on arthropod exoskeletons in the laboratory, and freshwater shrimp can be the most abundant animals in tropical rain forest streams. We therefore used diagnostic quantitative polymerase chain reaction to determine the infection status of freshwater shrimp from areas in which they are sympatric with frog species that have suffered declines in association with outbreaks of chytridiomycosis. We detected B. dendrobatidis on three individual shrimp belonging to two genera and collected from two widely separated streams. Two of the individuals had high levels of infection. This indicates that the presence of alternative hosts is likely to contribute to the extreme virulence of chytridiomycosis outbreaks in some systems. The presence of alternative hosts may allow B. dendrobatidis to remain in the environment after local extinctions of amphibian hosts, preventing the recovery of amphibian populations.

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References

  • Alford RA, Richards SJ (1999) Global amphibian declines: a problem in applied ecology. Annual Review of Ecological Systematics 30:133–165

    Article  Google Scholar 

  • Berger L, Hyatt AD, Olsen V, Hengstberger SG, Boyle D, Marantelli G, et al. (2002) Production of polyclonal antibodies to Batrachochytrium dendrobatidis and their use in an immunoperoxidase test for chytridiomycosis in amphibians. Diseases of Aquatic Organisms 48:213–220

    Article  PubMed  CAS  Google Scholar 

  • Berger L, Speare R, Daszak P, Green DE, Cunningham AA, Goggin CL, et al. (1998) Chytridiomycosis causes amphibian mortality associated with population declines in the rainforests of Australia and Central America. Proceedings of the National Academy of Sciences USA 95:9031–9036

    Article  CAS  Google Scholar 

  • Blaustein AR, Wake DB (1990) Declining amphibian populations: a global phenomenon? Trends in Ecology and Evolution 5:203–204

    Article  Google Scholar 

  • Boyle DG, Boyle DB, Olsen V, Morgan JAT, Hyatt AD (2004) Rapid quantitative detection of chytridiomycosis (Batrachochytrium dendrobatidis) in amphibian samples using real-time Taqman PCR assay. Diseases of Aquatic Organisms 60:141–148

    Article  PubMed  CAS  Google Scholar 

  • Choy S (2000) Shrimp as a model for biodiversity, conservation and riverine management. WaterShed, May 2000, Cooperative Research Centre for Freshwater Ecology, Canberra, pp 3–5

  • Covich AP, Crowl TA, Johnson SL, Pyron M (1996) Distribution and abundance of tropical freshwater shrimp along a stream corridor: response to disturbance. Biotropica 28:484–492

    Article  Google Scholar 

  • Covich AP, Crowl TA, Johnson SL, Varza D, Certain DL (1991) Post-Hurricane Hugo increases in atyid shrimp abundances in a Puerto Rican montane stream. Biotropica 23:448–454

    Article  Google Scholar 

  • Daszak P, Berger L, Cunningham AA, Hyatt AD, Green DE, Speare R (1999) Emerging infectious diseases and amphibian population declines. Emerging Infectious Diseases 5:735–748

    Article  PubMed  CAS  Google Scholar 

  • Dobson AP, Foufopoulos J (2001) Emerging infectious pathogens of wildlife. Philosophical Transactions of the Royal Society of London Series B: Biological Sciences 356:1001–1012

    Article  CAS  Google Scholar 

  • Godfray HCJ, Briggs CJ, Barlow ND, O’Callaghan MO, Glare TR, Jackson TA (1998) A model of insect-pathogen dynamics in which a pathogenic bacterium can also reproduce saprophytically. Proceedings of the Royal Society of London Series B: Biological Sciences 266:233–240

    Article  Google Scholar 

  • Hancock MA, Hughes JM (1999) Direct measures of instream movement in a freshwater shrimp using a genetic marker. Hydrobiologia 416:23–32

    Article  Google Scholar 

  • Hughes JM, Bunn SE, Hurwood DA, Choy S, Pearson RG (1996) Genetic differentiation among populations of Caridina zebra (Decapoda: Atyidae) in tropical rainforest streams, northern Australia. Freshwater Biology 36:289–296

    Article  Google Scholar 

  • Hurwood DA, Hughes JM (2001) Nested clade analysis of the freshwater shrimp, Caridina zebra (Decapoda: Atyidae), from north-eastern Australia. Molecular Ecology 10:113–125

    Article  PubMed  CAS  Google Scholar 

  • Johnson ML, Speare R (2003) Survival of Batrachochytrium dendrobatidis in water: quarantine and disease control implications. Emerging Infectious Diseases 9:922–925

    PubMed  Google Scholar 

  • Kiesecker JM, Blaustein AR, Belden LK (2001) Complex causes of amphibian population declines. Nature 410:681–684

    Article  PubMed  CAS  Google Scholar 

  • Lee CL, Fielder DR (1979) A mass migration of the freshwater prawn Macrobrachium australiense Holthuis, 1950 (Decapoda, Palaemonidae). Crustaceana 37:219–222

    Article  Google Scholar 

  • Letcher PM, Powell MJ (2002) Frequency and distribution patterns of zoosporic fungi from moss-covered and exposed forest soils. Mycologia 94:761

    Article  Google Scholar 

  • Lips KR (1999) Mass mortality and population declines of anurans at an upland site in western Panama. Conservation Biology 13:117–125

    Article  Google Scholar 

  • Longcore JE, Pessier AP, Nichols DK (1999) Batrachochytrium dendrobatidis gen. et sp. nov., a chytrid pathogenic to amphibians. Mycologia 91:219–227

    Article  Google Scholar 

  • McDonald K, Alford RA (1999) A review of declining frogs in northern Queensland. In: Campbell A (editor), Declines and Disappearances of Australian Frogs, Canberra: Environment Australia, pp 14–22

    Google Scholar 

  • Nichols DK, Lamirande EW, Pessier AP, Longcore JE (2001) Experimental transmission of cutaneous chytridiomycosis in dendrobatid frogs. Journal of Wildlife Diseases 37:1–11

    PubMed  CAS  Google Scholar 

  • Pessier AP, Nichols DK, Longcore JE, Fuller MS (1999) Cutaneous chytridiomycosis in poison dart frogs (Dendrobates spp.) and White’s tree frogs (Litoria caerulea). Journal of Veterinary Diagnostic Investigation 11:194–199

    PubMed  CAS  Google Scholar 

  • Powell MJ (1993) Looking at mycology with a Janus face: a glimpse of chytridiomycetes active in the environment. Mycologia 85:1–20

    Article  Google Scholar 

  • Richards SJ, McDonald KR, Alford RA (1993) Declines in populations of Australia’s endemic tropical rainforest frogs. Pacific Conservation Biology 1:66–77

    Google Scholar 

  • Sparrow FK (1960) Aquatic Phycomycetes, 2nd ed., Ann Arbor: University of Michigan Press

    Google Scholar 

  • Stuart SN, Chanson JS, Cox NA, Young BE, Rodrigues ASL, Fischman DL, et al. (2004) Status and trends of amphibian declines and extinctions worldwide. Science 306:1783–1786

    Article  PubMed  CAS  Google Scholar 

  • Wyman RL (1990) What’s happening to the amphibians? Conservation Biology 4:350–352

    Article  Google Scholar 

Download references

Acknowledgments

Alicia Crawley, Jaime Kay, and Dean Richards assisted in the field and Ruth Campbell processed the samples and performed the diagnostic PCR tests.

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Correspondence to Ross A. Alford.

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Rowley, J.J.L., Alford, R.A. & Skerratt, L.F. The Amphibian Chytrid Batrachochytrium dendrobatidis Occurs on Freshwater Shrimp in Rain Forest Streams in Northern Queensland, Australia. EcoHealth 3, 49–52 (2006). https://doi.org/10.1007/s10393-005-0005-5

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  • DOI: https://doi.org/10.1007/s10393-005-0005-5

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