We relied on gammarids that were naturally infected with cystacanth
parasites, that is, those at the last larval stage that is infective for the definitive host and at which such changes occur in hosts, and studied the effect of acclimatization at different temperatures on the behavior of uninfected and infected individuals.
Changes in prevalence and intensity of infection of ProfilicoUis altmani (Perry, 3942) cystacanth
(Acanthocephala) parasitizing the mole crab Emerita analoga (Stimpson, 3857): an El Nino cascade effect?
7% Acanthocephalan cystacanth
7% 0% * Chi-square, P < 0.
Voucher helminths from the 2004-2007 collection were deposited in the United States National Parasite Collection, USNPC, Beltsville, Maryland: Distoichometra bufonis (USNPC 100930); Glypthelmins quieta (USNPC 100931); Gorgoderina multilobata (USNPC 100932); Haematoloechus kernensis (USNPC 100933); Megalodiscus microphagus (USNPC 100934); Digenean metacercariae (USNPC 100938); Cosmocerca variabilis (USNPC 100935); Rhabdias ranae (USNPC 100936); Acanthocephalan cystacanth
Gravid individuals of two species of Nematoda, Strongyluris similis Caballero, 1938, Thubunaea iguanae Telford, 1965 and one cystacanth
of a species of oligacanthorhynchid Acanthocephala were found.
Intermediate hosts that harbor the infective stage of acanthocephalans, the cystacanth
stage, may show physiological changes such as reduced [O.
Acanthocephala (1993) unknown cystacanth
Arkansas 1/37 (3%) McAllister et al.
larvae were recovered from two of the three immature Lepomis sp.
USNPC 95054); oligacanthorhynchid cystacanth
Helminths collected consisted of one single male oligacanthorhynchid cystacanth
occurring within the mesentery adjacent to the proximal small intestine in an adult non-gravid female C.
ingens would first have to develop to an infective cystacanth
stage in an intermediate insect host.
These last authors recorded seasonal occurrence of Quadrigyrus nickoli Schmidt and Hugghins, 1973 cystacanths