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Biological control of marine invasive species: cautionary tales and land-based lessons
Secord, D. (2003). Biological control of marine invasive species: cautionary tales and land-based lessons. Biological Invasions 5(1-2): 117-131. https://dx.doi.org/10.1023/A:1024054909052
In: Biological Invasions. Springer: London. ISSN 1387-3547; e-ISSN 1573-1464
Ook verschenen in:
Pederson, J. (2003). Marine bioinvasions: patterns, processes and perspectives. Kluwer Academic: Dordrecht. ISBN 1-4020-1449-X. 143 pp., meer
Peer reviewed article  
Beschikbaar in  Auteur 
Trefwoorden
    Algae
    Aquatic organisms > Marine organisms > Aquatic animals > Marine invertebrates
    Conservation
    Control > Biological control
    Control > Pest control
    Flora > Weeds > Marine organisms > Seaweeds > Sea grass
    Hosts
    Natural enemies
    Predator prey interactions
    Risks
    Taxa > Species > Introduced species
    Taxa > Species > Rare species
    Marien/Kust
Auteur  Top 
  • Secord, D.
Abstract
    Biological control (biocontrol) has successfully regulated pest populations in terrestrial agroecosystems, but it has also caused negative unintended consequences for native species. Marine biologists and resource managers have recently published a growing number of proposals to include biocontrol in integrated pest management programs in oceans, seas and estuaries. Here, I review six ecologically and taxonomically diverse case studies of marine biocontrol programs at various stages of planning and implementation. Proposals include viral or microbial control of harmful algal blooms, predatory control of the ctenophore Mnemiopsis leidyi in the Black Sea, parasitic regulation of the European green crab Carcinus maenas, castration by ciliates of the seastar Asterias amurensis in Australia, herbivory of the toxic green alga Caulerpa taxifolia in the Mediterranean by sacoglossan sea slugs, and insect biocontrol by the planthopper Prokelesia marginata to ameliorate ecological impacts of the saltmarsh cordgrass Spartina alterniflora. Where data exist, I evaluate these examples in terms of lessons marine invasion biologists can glean from the rich history of terrestrial biocontrol, and explicitly contrast agroecosystems with invaded marine habitats. Host specificity cannot be guaranteed in the marine biocontrol proposals examined. Feasible alternatives to classical biocontrol in the marine realm should be emphasized, including more investment in invasion prevention tools, early detection and eradication while invasions are small, and increased attention to native natural enemies to control exotic pests. Biocontrol in marine habitats is risky: it poses many more uncertainties and has a much sparser history than its counterpart on land.
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