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Host specificity of Sacculina carcini, a potential biological control agent of the introduced European green crab Carcinus maenas in California

Content Provider	Springer Nature Link
Author	Goddard, Jeffrey H. R Torchin, Mark E Kuris, Armand M Lafferty, Kevin D.
Copyright Year	2005
Abstract	The European green crab, Carcinus maenas, is an introduced marine predator established on the west coast of North America. We conducted laboratory experiments on the host specificity of a natural enemy of the green crab, the parasitic barnacle Sacculina carcini, to provide information on the safety of its use as a possible biological control agent. Four species of non-target, native California crabs (Hemigrapsus oregonensis, H. nudus, Pachygrapsus crassipes and Cancer magister) were exposed to infective larvae of S. carcini. Settlement by S. carcini on the four native species ranged from 33 to 53%, compared to 79% for green crabs. Overall, cyprid larvae tended to settle in higher numbers on individual green crabs than on either C. magister or H. oregonensis. However, for C. magister this difference was significant for soft-shelled, but not hard-shelled individuals. Up to 29% of the native crabs arrested early infections by melanizing the rootlets of the parasite. Most native and green crabs settled on by S. carcini became infected, especially when settled on by >3 cyprids. Infected green crabs died at more than twice the rate of uninfected green crabs. In contrast to green crabs, all infected native crabs died without producing an externa (reproductive sac). At high settlement intensities, infected native crabs frequently exhibited neurological symptoms (twitching, loss of movement) before death. These results indicate that use of S. carcini as a biological control agent could result in the death of native crabs. The magnitude of this effect would be proportional to the density of infected green crabs in the environment and the probability that cyprids would contact native crabs in the wild. Potential benefits of biological control should be assessed in relation to these potential non-target effects.
Starting Page	895
Ending Page	912
Page Count	18
File Format	PDF
ISSN	13873547
Journal	Biological Invasions
Volume Number	7
Issue Number	6
e-ISSN	15731464
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2005-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	biological control Carcinus maenas Hemigrapsus nudus Hemigrapsus oregonensis host response host specificity Pachygrapsus crassipes Sacculina carcini Ecology Hydrobiology Forestry Plant Sciences Zoology
Content Type	Text
Resource Type	Article
Subject	Ecology Ecology, Evolution, Behavior and Systematics

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Host specificity of Sacculina carcini, a potential biological control agent of the introduced European green crab Carcinus maenas in California (2003)

Host specificity of sacculina carcini, a potential biological control agent of the introduced european green crab carcinus maenas in california (2003).

Hemigrapsus nudus and Pachygrapsus crassipes: a comparison of speed due to structural differences

Biological control of the european green crab, carcinus maenas: natural enemy evaluation and analysis of host specificity (2005).

Predator avoidance behavior in Pachygrapsus crassipes and Hemigrapsus nudus

A prediction come true: the green crab invades the Patagonian coast

Developing the options for managing marine pests: specificity trials on the parasitic castrator, Sacculina carcini, against the European crab, Carcinus maenas, and related species.

Biological control of the European green crab, Carcinus maenas: natural enemy evaluation and analysis of host specificity.

Growth and persistence of a recent invader Carcinus maenas in estuaries of the northeastern Pacific

Host specificity of Sacculina carcini, a potential biological control agent of the introduced European green crab Carcinus maenas in California

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Host specificity of Sacculina carcini, a potential biological control agent of the introduced European green crab Carcinus maenas in California (2003)

Host specificity of sacculina carcini, a potential biological control agent of the introduced european green crab carcinus maenas in california (2003).

Hemigrapsus nudus and Pachygrapsus crassipes: a comparison of speed due to structural differences

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Developing the options for managing marine pests: specificity trials on the parasitic castrator, Sacculina carcini, against the European crab, Carcinus maenas, and related species.

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Host specificity of Sacculina carcini, a potential biological control agent of the introduced European green crab Carcinus maenas in California