| the missing host hypothesis: do chemical cues from predators induce life cycle truncation of trematodes within their fish host? | using controlled experiments, the ability of the trematode parasite stegodexamene anguillae, encysted within its intermediate fish host, the common bully gobiomorphus cotidianus, was tested to indirectly detect the presence of its definitive host by exposing infected g. cotidianus to chemical cues from the definitive host, the short-finned eel anguilla australis. the trematode can abbreviate its normal life cycle and achieve precocious maturity in g. cotidianus, or adopt the usual strategy consi ... | 2012 | 22471801 |
| stegodexamene anguillae (digenea: lepocreadiidae), an intestinal parasite of eels (anguilla spp.) in new caledonia. | adult trematodes of the genus stegodexamene macfarlane, 1951 were recorded from the intestines of two species of freshwater eels, the pacific short-finned eel anguilla obscura günther and the speckled longfin eel anguilla reinhardtii steindachner from the pouembout and la foa rivers, new caledonia, south pacific. they were identified as stegodexamene anguillae macfarlane, 1951, a species previously reported only from eels in new zealand. the morphology of adult s. anguillae seems to be practical ... | 2007 | 17149603 |
| geographic variation in life cycle strategies of a progenetic trematode. | numerous parasite species have evolved complex life cycles with multiple, subsequent hosts. in trematodes, each transmission event in multi-host life cycles selects for various adaptations, one of which is facultative life cycle abbreviation. this typically occurs through progenesis, i.e., precocious maturity and reproduction via self-fertilization within the second intermediate host. progenesis eliminates the need for the definitive host and facilitates life cycle completion. adopting a progene ... | 2012 | 21929358 |