Search Results - "IRWIN, S. W. B"

LIFE HISTORY AND LIFE CYCLES: PRODUCTION AND BEHAVIOR OF TREMATODE CERCARIAE IN RELATION TO HOST EXPLOITATION AND NEXT-HOST CHARACTERISTICS by McCarthy, Helen O, Fitzpatrick, Susan, Irwin, S. W B

“…Life history trade-offs affect trematode parasites reproducing inside their 1st intermediate hosts. Within the constraint of the effect on host survival,…”
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Pollution toxicity to the transmission of larval digeneans through their molluscan hosts by Morley, N J, Irwin, S W B, Lewis, J W

“…The increased occurrence of pollutants in ecosystems is a continuing area of concern. It is known that numerous diseases of wild aquatic animals can occur with…”
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Parasite alteration of host shape: a quantitative approach to gigantism helps elucidate evolutionary advantages by McCarthy, H O, Fitzpatrick, S M, Irwin, S W B

“…This investigation quantifies some aspects of the parasite-host relationship between the digenean Microphallus piriformes and its intermediate host Littorina…”
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A study of the mechanisms by which the cercariae of Microphallus primas (Jag, 1909) Stunkard, 1957 penetrate the shore crab, Carcinus maenas (L) by Saville, D H, Irwin, S W B

“…This study established the mechanisms by which Microphallus primas cercariae penetrate the crab Carcinus maenas in which they form metacercarial cysts. Light…”
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Effects of heavy metal pollution on swimming and longevity in cercariae of Cryptocotyle lingua (Digenea: Heterophyidae) by Cross, M A, Irwin, S W, Fitzpatrick, S M

“…Effects of heavy metal pollution on the cercariae of the marine trematode Cryptocotyle lingua (Creplin) were studied by measuring horizontal swimming rate…”
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Effects of host habitat quality on the viability of Cryptocotyle lingua (Trematoda: Digenea) cercariae by Cross, M A, Irwin, S W B, Fitzpatrick, S M

“…In an earlier study it was shown that Cryptocotyle lingua cercariae, matured in Littorina littorea from a polluted marine lagoon, displayed slower horizontal…”
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An ultrastructural study of excretory system development in the cercariae of Prosorhynchoides gracilescens (Rudolphi, 1819) and Prosorhynchus squamatus Odhner, 1905 (Digenea, Bucephalidae) by Podvyaznaya, I M, Galaktionov, K V, Irwin, S W B

“…The ultrastructure of the developing excretory system of Prosorhynchoides gracilescens and Prosorhynchus squamatus cercariae is described. The development…”
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An ultrastructural study of reproduction in the parthenogenetic metacercariae of Cercaria margaritensis Ching, 1982 (Digenea: Gymnophallidae) by Irwin, S W B, Galaktionov, K V, Malkova, I I, Saville, D H, Fitzpatrick, S M

“…The parthenogenetic metacercarial stages of the gymnophallid trematode Cercaria margaritensis are found in the extrapallial cavity of the subtidal prosobranch…”
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One of the most complex life-cycles among trematodes: a description of Parvatrema margaritense (Ching, 1982) n. comb. (Gymnophallidae) possessing parthenogenetic metacercariae by Galaktionov, K V, Irwin, S W B, Saville, D H

“…This study used light and electron microscopy to provide observations and morphometric details of the life-cycle of the gymnophallids (Trematoda, Digenea),…”
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Tributyltin and copper effects on encystment and in vitro excystment of Parorchis acanthus larvae by Bennett, S C, Irwin, S W B, Fitzpatrick, S M

“…Effects of tributyltin (TBT) and copper (Cu) on cercariae and metacercariae of the trematode Parorchis acanthus (Digenea: Philophthalmidae) were investigated…”
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Evolutionary relationships within 'pygmaeus' group microphallids using genetic analysis and scanning electron microscopy by Galaktionov, K V, Bulat, S A, Alekhina, I A, Saville, D H, Fitzpatrick, S M, Irwin, S W B

“…There are four species of 'pygmaeus' microphallids, namely Microphallus pygmaeus, M. piriformes, M. pseudopygmaeus and M. triangulatus (Trematoda:…”
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The effects of age, temperature, light quantity and wavelength on the swimming behaviour of the cercariae of Cryptocotyle lingua (Digenea: Heterophyidae) by Rea, J G, Irwin, S W

“…Laboratory experiments indicated that the active life-span of the cercariae of Cryptocotyle lingua was temperature-dependent. An increase in water temperature…”
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Use of an in Ovo Technique to Provide Adults of Levinseniella sp. no. 17 That Were Identified as Levinseniella minuta (Trematoda: Microphallidae) by Field, L. C., Irwin, S. W. B., Saville, D. H.

“…Metacercarial cysts identified as Levinseniella sp. no. 17 (Deblock, 1980) were found in the mud snail Hydrobia ulvae. These larval trematodes had never been…”
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In ovo cultivation of Microphallus primas (Trematoda: Microphallidae) metacercariae to ovigerous adults and the establishment of the life-cycle in the laboratory by Saville, D H, Irwin, S W

“…This investigation reports for the first time the establishment of a trematode life-cycle in the laboratory using in ovo cultivation of the adult stage…”
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Behavioural responses of the cercariae of Cryptocotyle lingua (Digenea: Heterophyidae) to computer-controlled shadow sequences by Rea, J G, Irwin, S W

“…The cercariae of Cryptocotyle lingua have a brief but active life during which they do not feed. In order to maximize the probability of infection they must…”
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The effects of computer-controlled shadow stimuli on the success of cercarial transmission by Cryptocotyle lingua (Digenea: Heterophyidae) by Rea, J G, Irwin, S W

“…Pectoral fins from juvenile rainbow trout (Oncorhynchus mykiss) were used in a bioassay, the object of which was to quantify the effect of simulated shadow…”
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Scanning and transmission electron microscopical observations on the tegument of excysted metacercariae and adults of Zygocotyle lunata by Irwin, S W, McCloughlin, T J, Fried, B

“…Scanning and transmission electron microscopical observations were made on the tegument of excysted metacercariae and adults of the paramphistome, Zygocotyle…”
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Life History and Life Cycles: Production and Behavior of Trematode Cercariae in Relation to Host Exploitation and Next-Host Characteristics by McCarthy, Helen O., Fitzpatrick, Susan, Irwin, S. W. B.

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A transmissible trematode affects the direction and rhythm of movement in a marine gastropod by McCarthy, Helen O., Fitzpatrick, Susan, Irwin, S.W.B.

“…Microphallus piriformes (Trematoda) is unusual in having only two hosts and no motile free-living stages. The intermediate host, the rough periwinkle,…”
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A transmissible trematode affets the direction and rhythm of movement in a marine gastropod by McCarthy, Helen O, Fitzpatrick, Susan, Irwin, S W B

“…Microphallus piriformes (Trematoda) is unusual in having only two hosts and no motile free-living stages. The intermediate host, the rough periwinkle,…”
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