Species Invasions from Commerce in Live Aquatic Organisms: Problems and Possible Solutions

ABSTRACT In the Laurentian Great Lakes region, commercial activities involving live fish bait, horticultural and water-garden plants, biological supplies, pets, and live food are the principal pathways for intentional introductions of live aquatic organisms. We sampled species for sale in these trades and found that the risks of new invasions and of spreading known invaders are high. Moreover, most animals were identified by common name only, and even though scientific names were more often applied to plants, consumers cannot be certain what species they are receiving because misidentification is common. Finally, 90 percent of plant orders arrived contaminated with unordered live organisms. The policy goal of US and Canadian national and state or provincial agencies is to reduce the risk of harmful introductions. Our results demonstrate that meeting this goal will require accurate identification of species by vendors, the removal of known and likely invasive species from trade, and reductions in the number of contaminant organisms.

[1]  M. Garbelotto,et al.  Microsatellite markers identify three lineages of Phytophthora ramorum in US nurseries, yet single lineages in US forest and European nursery populations , 2006, Molecular ecology.

[2]  Judith Pederson,et al.  Assessing the Risk of Introducing Exotic Species via the Live Marine Species Trade , 2005 .

[3]  J. Shogren.  Risk reduction strategies against the 'explosive invader' , 2000 .

[4]  P. Champion,et al.  Border control for potential aquatic weeds , 2000 .

[5]  D. Lodge,et al.  Fecundity as a Basis for Risk Assessment of Nonindigenous Freshwater Molluscs , 2007, Conservation biology : the journal of the Society for Conservation Biology.

[6]  Donald H. Les,et al.  Aquatic and wetland plants of northeastern North America , 2001 .

[7]  Christopher A. Taylor,et al.  Nonindigenous Crayfishes Threaten North American Freshwater Biodiversity: Lessons from Europe , 2000 .

[8]  Hiram W. Li.  Nonindigenous Fishes Introduced into Inland Waters of the United States. Pam L. Fuller , Leo G. Nico , James D. Williams , 1999 .

[9]  Amitrajeet A. Batabyal.  A Rationale for the Differential Regulatory Treatment of Imports When Invasive Species are a Potential Problem , 2006 .

[10]  Edward L. Mills,et al.  Exotic Species in the Great Lakes: A History of Biotic Crises and Anthropogenic Introductions , 1993 .

[11]  The infinitesimal, the deterministic, and the probabilistic: Alternate container inspection policies in invasive species management , 2006, Biological Invasions.

[12]  Keith R Hayes,et al.  Biological invasions: recommendations for U.S. policy and management. , 2006, Ecological applications : a publication of the Ecological Society of America.

[13]  Anthony Ricciardi,et al.  Invasion risks posed by the aquarium trade and live fish markets on the Laurentian Great Lakes , 2005, Biodiversity & Conservation.

[14]  Reuben P Keller,et al.  Risk assessment for invasive species produces net bioeconomic benefits , 2007, Proceedings of the National Academy of Sciences.

[15]  J. Magnuson,et al.  A long-term rusty crayfish (Orconectes rusticus) invasion: dispersal patterns and community change in a north temperate lake , 2004 .

[16]  D. Strayer,et al.  Invasion success of vertebrates in Europe and North America. , 2005, Proceedings of the National Academy of Sciences of the United States of America.

[17]  Jonathan M. Levine,et al.  Forecasting Biological Invasions with Increasing International Trade , 2003 .

[18]  D. Pimentel,et al.  Update on the environmental and economic costs associated with alien-invasive species in the United States , 2005 .

[19]  I. Cowx,et al.  Nonindigenous Fishes Introduced into Inland Waters of the United States , 2000 .

[20]  Elizabeth J. Czarapata.  Invasive Plants of the Upper Midwest: An Illustrated Guide to Their Identification and Control , 2005 .

[21]  P. Pheloung,et al.  A weed risk assessment model for use as a biosecurity tool evaluating plant introductions , 1999 .

[22]  A. Ricciardi.  Facilitative interactions among aquatic invaders: is an "invasional meltdown" occurring in the Great Lakes? , 2001 .

[23]  P. White,et al.  Horticulture as a Pathway of Invasive Plant Introductions in the United States , 2001 .

[24]  D. Lodge,et al.  An ounce of prevention or a pound of cure: bioeconomic risk analysis of invasive species , 2002, Proceedings of the Royal Society of London. Series B: Biological Sciences.

[25]  S. Galatowitsch,et al.  Movement of invasive aquatic plants into Minnesota (USA) through horticultural trade , 2004 .

[26]  D. Lodge,et al.  Whole-lake effects of invasive crayfish (Orconectes spp.) and the potential for restoration , 2006 .

[27]  P. Moyle,et al.  Predicting Invasion Success: Freshwater Fishes in California as a Model , 2006 .

[28]  J. Downing,et al.  The abundance of phytophilous invertebrates on different species of submerged macrophytes , 1988 .

[29]  C. Kolar,et al.  Ecological Predictions and Risk Assessment for Alien Fishes in North America , 2002, Science.

[30]  Jacob Licht,et al.  Biology and Management of Noxious Rangeland Weeds , 1999 .

[31]  Sarah H. Reichard,et al.  Predicting Invasions of Woody Plants Introduced into North America , 1997, Conservation Biology.

[32]  G. Cox.  ALIEN SPECIES AND EVOLUTION , 2009 .

[33]  W. B. Scott,et al.  Freshwater fishes of Canada , 1974 .

[34]  Susan L. Williams,et al.  Aquaculture--A Gateway for Exotic Species , 2001, Science.

[35]  R. Tinsley,et al.  Feral populations of Xenopus outside Africa , 1996 .

[36]  D. Zaranko,et al.  Another exotic mollusc in the Laurentian Great Lakes : The New Zealand native Potamopyrgus antipodarum (Gray 1843) (Gastropoda, Hydrobiidae) , 1997 .

[37]  R. P. Randall,et al.  A Global Compendium of Weeds , 2002 .