New species and records of Bopyridae (Crustacea: Isopoda) infesting species of the genus Upogebia (Crustacea: Decapoda: Upogebiidae): the genus Progebiophilus Codreanu &amp; Codreanu, 1963; and remarks on Phyllodurus Stimpson, 1857

Markham, John C.

doi:10.2988/0006-324x(2005)118[84:nsarob]2.0.co;2

Cited by 15 publications

(24 citation statements)

References 6 publications

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“…The bopyrid isopod Orthione griffenis Markham, 2004 is a branchial parasite of the eastern Pacific mud shrimp Upogebia pugettensis (Dana, 1852) described from abundant populations in Yaquina Bay, Oregon (Markham, 2004). Bopyrid isopods parasitize and usually castrate their decapod hosts (Bourdon, 1968;Kuris, 1974;O'Brien and Van Wyk, 1985).…”

Section: Introductionmentioning

confidence: 99%

Population Structure and Energetics of the Bopyrid Isopod Parasite Orthione Griffenis in Mud Shrimp Upogebia Pugettensis

Smith¹,

Dumbauld²,

Chapman³

2008

Journal of Crustacean Biology

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A B S T R A C TThe population structure and energetic burden of bopyrid isopod parasite Orthione griffenis on the eastern Pacific mud shrimp Upogebia pugettensis are estimated from size and weight relationships between parasite and host. U. pugettensis weight loss increases with O. griffenis weight but the high variance in the relation indicates that direct weight comparisons are insufficient to reveal most of the host-parasite energetic interactions. Environment, reproductive development, age, molt stage and the feeding histories of the hosts and parasites, not apparent from weight ratio comparisons, are likely to be important factors in their interaction. The high prevalence of O. griffenis among U. pugettensis and positive correlation between host weight loss and parasite weight nevertheless, indicate large impacts of these parasites on mud shrimp populations are occurring with corresponding effects on estuarine dynamics in Pacific Northwest estuaries.

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Section: Introductionmentioning

confidence: 99%

Population Structure and Energetics of the Bopyrid Isopod Parasite Orthione Griffenis in Mud Shrimp Upogebia Pugettensis

Smith¹,

Dumbauld²,

Chapman³

2008

Journal of Crustacean Biology

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“…No isopod parasite had previously been known from the gills of Upogebia in western North America. Markham (2004) did not discuss whether O. griffenis was introduced or native. Brusca et al (2007) included Orthione in their checklist (but not key) of Northeastern Pacific isopods without comment on its possible origins.…”

Section: Introductionmentioning

confidence: 96%

“…We analyze a dramatic example of this assumption herein. Markham (2004) described a new species of branchial parasitic bopyrid isopod (Orthione griffenis; hereafter Orthione) that was collected from the intertidal estuarine mud shrimp (Upogebia pugettensis;…”

Section: Introductionmentioning

confidence: 99%

An introduced Asian parasite threatens northeastern Pacific estuarine ecosystems

et al. 2011

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The introduced Asian parasitic bopyrid isopod, Orthione griffenis, was first discovered on the Pacific coast of North America in Washington in 1988 and next in California in 1992. The range of Orthione presently extends from British Columbia to Baja California, where it infests at least two species of the native estuary mud shrimp, Upogebia. Intense Orthione infestations are associated with the apparent demise of many local populations of Upogebia pugettensis yet nonindigenous origins of Orthione in North America and thus the ecological significance of its impacts have remained in doubt. Six criteria reveal that Orthione is introduced to North America: its conspecificity with disjunct Asian populations, its earliest (1950s) collections in Asia, its late discovery among symbiotic species associated with Upogebia, its historical absence, and its appearance in North America coincident with extensive new ballast water traffic from Asia. Orthione is the first recognized bopyrid isopod invasion globally. Coexistence of U. pugettensis, which are ecosystem engineers, with its newly acquired parasite cannot be assumed. Orthione threatens eastern Pacific estuary ecosystems where Upogebia were previously abundant.

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“…Declines or extinctions of all populations of Upogebia between Morro Bay, California and Vancouver, British Columbia have been observed or are suspected since the introduction of an Asian bopyrid isopod parasite, Orthione griffenis Markham, 2004 [referred to as Orthione from here on] in the mid-1980s (Dumbauld, 2011;Chapman et al, 2012). All known populations of Upogebia are intensely infested by Orthione, which effectively castrate their female hosts (Smith et al, 2008;Chapman et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

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confidence: 99%

A rapid intertidal megafauna survey method applied to Upogebia pugettensis, and its introduced parasite, Orthione griffensis

Chapman

Carter

2014

Journal of Crustacean Biology

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A B S T R A C TDeclines or extinctions of the native northeast Pacific intertidal blue mud shrimp, Upogebia pugettensis (Dana, 1852), over the species range are directly associated with intense infestations by the introduced Asian bopyrid isopod parasite, Orthione griffenis Markham, 2004. Single point sampling sites and anecdotal records poorly resolve how this interaction occurs within estuaries and among geographical regions. This broad scale interaction can only be resolved at the meta-population scales over which they occur but the surveys needed for this research are proceeding slowly or, in most cases, have not begun. The large efforts and major field and computational resources that grid or random point surveys employed for this work to date have proven to be major obstacles. We therefore tested a new method in Alsea Bay, Oregon, in which shrimp bed perimeters and areas are algebraically defined previous to direct sampling within predefined population areas. This new method is intuitive, reduces logistics, greatly reduces field and computational resources and produces equally useful results to previous survey methods. The Alsea Bay populations of U. pugettensis surveyed by these new methods are sufficiently abundant to remain "ecosystem engineers." However, intense infestations of their populations by Orthione cause significant reproductive losses. The Alsea Bay population appears to be declining along with all other known U. pugettensis in Oregon estuaries. -1980s (Dumbauld, 2011Chapman et al., 2012). All known populations of Upogebia are intensely infested by Orthione, which effectively castrate their female hosts (Smith et al., 2008;Chapman et al., 2012). All populations of Upogebia between Vancouver, British Columbia and Morro Bay, California appear to be declining (Chapman et al., 2012). The nature of Orthione's virulence and its effects on Upogebia-populations are unexpected and poorly known. Upogebia are the only host of Orthione north of Morro Bay (Chapman et al., 2012). Recruitment of such single host parasites normally decline when their only available hosts decline (O'Keefe and Antonovics, 2002;Deredec and Courchamp, 2003). Orthione prevalence, however, does not decline with abundances of Upogebia (Dumbauld * Corresponding author; e-mail: john.chapman@oregonstate.edu Chapman et al., 2012). Moreover, Orthione produce multiple broods and appear to survive past the reproductive competence of their host populations (Chapman et al., 2012). The nonindigenous origins of Orthione in North America and the absence of refuges for its new hosts preclude assumptions of the hosts' resilience, equilibrium domains or otherwise long-term persistence (Chapman et al., 2012). Understanding how this interaction occurs is therefore critical for any conservation efforts. Emerging questions that cannot be addressed from existing information include: whether Upogebia have refuges or variable population structures within or among estuaries, the magnitudes of local and coast-wide extinctions and population declines, wh...

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New species and records of Bopyridae (Crustacea: Isopoda) infesting species of the genus Upogebia (Crustacea: Decapoda: Upogebiidae): the genus Progebiophilus Codreanu & Codreanu, 1963; and remarks on Phyllodurus Stimpson, 1857

Cited by 15 publications

References 6 publications

Population Structure and Energetics of the Bopyrid Isopod Parasite Orthione Griffenis in Mud Shrimp Upogebia Pugettensis

Population Structure and Energetics of the Bopyrid Isopod Parasite Orthione Griffenis in Mud Shrimp Upogebia Pugettensis

An introduced Asian parasite threatens northeastern Pacific estuarine ecosystems

A rapid intertidal megafauna survey method applied to Upogebia pugettensis, and its introduced parasite, Orthione griffensis

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