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David J. MARCOGLIESE
MARCOGLIESE, D.J., J.J. NAGLER, D.G. CYR, 1998. Effects of exposure to contaminated sediments on the parasite fauna of American plaice (Hippoglossoides platessoides). Bull. Environ. Contam. Toxicol., 61: 88-95 .
McCONNELL, C.J., D.J. MARCOGLIESE, M.W. STACEY, 1997. Settling rate and dispersal of sealworm eggs (Nematoda) determined using a revised protocol for myxozoan spores. J. Parasitol., 83: 203-206 .
JACKSON, C.J., D.J. MARCOGLIESE, M.D.B. BURT, 1997. Precociously developed Ascorophis sp. (Nematoda, Spirurata) and Hemiurus levinseni (Digenea, Hemiuridae) in their crustacean intermediate hosts. Acta Parasitol., 42(1): 31-35 .
MARCOGLIESE, D.J., 1997. Fecundity of sealworm (Pseudoterranova decipiens) infecting grey seals (Halichoerus grypus) in the Gulf of St. Lawrence, Canada : lack of density-dependent effects. Int. J. Parasitol., 27: 1401-1409 .
JACKSON, C.J., D.J. MARCOGLIESE, M.D.B. BURT, 1997. Role of hyperbenthic crustaceans in the transmission of marine helminth parasites. Can. J. Fish. Aquat. Sci., 54: 815-820 .
Invertebrates (n=34 813), collected from nine areas in the Northwest Atlantic, were either dissected or enzymatically digested to determine if the animals harboured helminth infections. Six species of endoparasites were found. Mysids were host to the larval nematodes Pseudoterranova decipiens (sealworm), Hysterothylacium aduncum, and Paracuaria adunca, which are found as adults in seal, fish, and birds, respectively, and to the digenean fish parasite Hemiurus levinseni (first record in mysids). Larval P. adunca and Tetrameres sp., both nematode parasites of birds, and Ascarophis sp., a parasite of fish, were found in amphipods. Some Ascarophis sp. and H. levinseni recovered from the crustaceans exhibited precocious sexual development. Natural infection rates of helminths in invertebrates are low. Mysids appear to be more important hosts than amphipods for transmission of sealworm to fish.
MARCOGLIESE, D.J., D.K. CONE, 1997. Parasite communities as indicators of ecosystem stress. Parassitologia, 39: 227-232 .
MARCOGLIESE, D.J., D.K. CONE, 1996. On the distribution and abundance of eel parasites in Nova Scotia : influence of pH. J. Parasitol., 82: 389-399 .
MARCOGLIESE, D.J., 1996. Evidence for specificity of Steganoderma formosum for its second intermediate host in the Northwest Atlantic. J. Helminthol. Soc. Wash., 70: 215-218 .
MARCOGLIESE, D.J., 1996. Larval parasitic nematodes infecting marine crustaceans in Eastern Canada. 3. Hysterothylacium aduncum. J. Helminthol. Soc. Wash., 63: 12-18 .
MARCOGLIESE, D.J., F. BOILY, M. HAMMILL, 1996. Distribution and abundance of stomach nematodes (Anisakidae) among grey seals (Halichoerus grypus) and harp seals (Phoca groenlandica) in the Gulf of St. Lawrence. Can. J. Fish. Aquat. Sci., 53: 2829-2836 .
In grey seal (Halichoerus grypus) stomachs, nematodes in order of decreasing abundance were, Contracaecum osculatum, Pseudoterranova decipiens, Anisakis simplex, and Phocascaris spp.; P. decipiens and C. osculatum were more abundant than in previous surveys in the Gulf of St. Lawrence. Abundance of P. decipiens increased and those of C. osculatum, A. simplex, and Phocascaris spp. decreased along a north-south gradient in the Gulf. Adults were common among P. decipiens and Phocascaris spp. and rare among C. osculatum and A. simplex. Among grey seals from Anticosti Island, abundances of P. decipiens decreased and those of C. osculatum and Phocascaris spp. increased between 1988 and 1992. Abundances of P. decipiens and C. osculatum increased with host age in 1988 and 1992. There was no evidence of displacement of P. decipiens by C. osculatum. The same four parasites occurred in harp seals (Phoca groenlandica), with C. osculatum showing an increase compared with earlier surveys. Abundance and prevalence of P. decipiens were low in harp seals, with few mature individuals. Harp seals are not considered important hosts for P. decipiens in this area. Temporal and spatial changes in abundance of P. decipiens and C. osculatum in the Gulf of St. Lawrence are attributed to an increase in the size of seal populations and a concomitant decrease in mean water temperature.
DUBOIS, N., D.J. MARCOGLIESE, P. MAGNAN, 1996. Effects of introduction of white sucker, Catostomus commersoni, on the parasite fauna of brook trout, Salvelinus fontinalis. Can. J. Zool., 74: 1304-1312 .
White sucker, Catostomus commersoni, has been introduced in many brook trout, Salvelinus fontinalis, lakes of the Laurentian Shield, Quebec, Canada. The goal of this study was to assess the impact of these introductions on the parasite fauna of brook trout. Three lakes containing brook trout only and three lakes containing both brook trout and white sucker were studied. The objectives were (i) to determine if white sucker parasites were able to colonise the relatively oligotrophic lakes of the Laurentian Shield, (ii) to establish if parasites were exchanged between sucker and trout, and (iii) to study the effect of trout feeding habits on their parasite fauna, since this fish shifts its diet from zoobenthos to zooplankton when living with white sucker. Eight of the 12 parasite species found on white sucker probably colonised the lakes with their host. Among the 11 parasite species identified from trout, it is unlikely that any were introduced by white sucker. Trout living with white sucker have more parasites transmitted by zooplankton (Diphyllobothrium ditremum and Eubothrium salvelini) and fewer parasites transmitted by zoobenthos (Crepidostomum farionis and Sterliadochona ephemeridarum) than trout living in allopatry. Local factors such as lake morphometrics also seemed to play an important role in the composition of the trout parasite fauna.©1996 National Research Council Canada
MARCOGLIESE, D.J., 1996. Transmission of the sealworm, Pseudoterranova decipiens (Krabbe), from invertebrates to fish in an enclosed brackish pond. J. Exp. Mar. Biol. Ecol., 205: 205-219 .
BARKER, D.E., D.J. MARCOGLIESE, D.K. CONE, 1996. On the distribution and abundance of eel parasites in Nova Scotia : local versus regional patterns. J. Parasitol., 82: 697-701 .
MARCOGLIESE, D.J., 1995. Comparison of parasites of mummichogs and sticklebacks from brackish and freshwater ponds on Sable Island, Nova Scotia. Am. Midl. Nat., 133: 333-343 .
BOILY, F., D.J. MARCOGLIESE, 1995. Geographical variations in abundance of larval anisakine nematods in Atlantic cod (Gadus morhua) and American plaice (Hippoglossoides platessoides) from the Gulf of St. Lawrence. Can. J. Fish. Aquat. Sci., 52 (Suppl. 1): 105-115 .
JACKSON, C.J., D.J. MARCOGLIESE, 1995. An unique association between Argulus alosae (Branchiura) and Mysis stenolepis (Mysidacea). Crustaceana, 68: 910-912 .
CONE, D.K., D.J. MARCOGLIESE, 1995. Pseudodactylogyrus anguillae on Anguilla rostrata in Nova Scotia : an endemic or an introduction. J. Fish Biol., 47: 177-178 .
MARCOGLIESE, D.J., 1995. The role of zooplankton in the transmission of helminth parasites to fish. Rev. Fish. Biol. Fish., 5: 336-371 .
MARCOGLIESE, D.J., 1995. Geographic and temporal variations in levels of anisakid nematode larvae among fishes in the Gulf of St. Lawrence, eastern Canada. Can. Tech. Rep. Fish. Aquat. Sci., 2029, 16 p .
A total of 3441 fish belonging to 35 species collected from the Gulf of St. Lawrence, eastern Canada, in 1990 and 1992 were examined for anisakid nematodes. Pseudoterranova decipiens, found in 13 species, was most prevalent in the southern Gulf, reflecting the distribution of the main definitive host, the grey seal (Halichoerus grypus), and warmer temperatures. Shorthorn sculpin (Myoxocephalus scorpius), longhorn sculpin (M. octodecemspinosus) and ocean pout (Macrozoarces americanus) were among the most heavily infected hosts. Anisakis simplex, found in 17 species, was most prevalent in the northern Gulf, reflecting the distribution of cetaceans in the Gulf of St. Lawrence. Shorthorn sculpin, Atlantic herring (Clupea harengus) and marlinspike (Nezumia bairdi) were among the species most heavily infected. Contracaecum osculatum and/or Phocascaris sp. were found in 13 species, being most abundant in shorthorn sculpin from the northern Gulf of St. Lawrence. Contracaecines are generally more abundant at northern latitudes. Abundances of P. decipiens and contracaecines in white hake (Urophycis tenuis) and longhorn sculpin from St. Georges Bay were significantly higher in 1990 compared to 1992. Of the fishes examined herein, herring and capelin (Mallotus villosus) are probably the most important in transmitting A. simplex to the cetacean hosts, whereas all species are probably of secondary importance in transmitting P. decipiens and contracaecines to the phocid hosts.
MARCOGLIESE, D.J., 1994. Aeginina longicornis (Aphipoda : Caprellidea), new intermediate host for Echinorhynchus gadi (Acanthocephala : Echinorhynchidae). J. Parasitol., 80: 1043-1044 .
ADAMSON, M.L., D.J. MARCOGLIESE, 1994. A possible instance of parasitism in a chromadorid nematode, Cyatholaimus cirolanae n. sp., from the marine isopod Cirolana polita. Trans. Am. Microsc. Soc., 113: 365-370 .
MARCOGLIESE, D.J., G. McCLELLAND, 1994. The status of biological research on sealworm (Pseudoterranova decipiens) in eastern Canada. Can. Manuscr. Rep. Fish. Aquat. Sci., 2260, 26 p .
Since 1988, research conducted by the Department of Fisheries and Oceans on the sealworm problem in eastern Canada has made substantial progress, despite insufficient and inconsistent funding. The purpose of this report is to evaluate the current knowledge of sealworm biology, and to identify research needs that must be addressed to comprehend adequately the population dynamics of sealworm.
McCLELLAND, G., D.J. MARCOGLIESE, 1994. Larval anisakine nematodes as biological indicators of cod (Gadus morhua) population in the Southern Gulf of St. Lawrence and on the Breton shelf, Canada. Bull. Scand. Soc. Parasitol., 4: 97-116 .
MARCOGLIESE, D.J., 1993. Larval parasitic nematodes infecting marine crustaceans in eastern Canada. 1. Sable Island, Nova Scotia. J. Helminthol. Soc. Wash., 60: 96-99 .
MARCOGLIESE, D.J., 1993. Larval nematodes infecting Amphiporeia virginiana (Amphipoda : Pontoporeioidea) on Sable Island, Nova Scotia. J. Parasitol., 79: 959-962 .
MARCOGLIESE, D.J., M.D.B. BURT, 1993. Larval parasitic nematodes infecting marine crustaceans in eastern Canada. 2. Passamaquoddy Bay, New Brunswick. J. Helminthol. Soc. Wash., 60: 100-104 .
MARCOGLIESE, D.J., D.K. CONE, 1993. What metazoan parasites tell us about the evolution of American and European eels. Evolution, 47: 1632-1635 .
CONE, D.K., D.J. MARCOGLIESE, W.D. WATT, 1993. Metazoan parasite communities of yellow eels (Anguilla rostrata) in acidic and limed rivers of Nova Scotia. Can. J. Zool., 71: 177-184 .
Metazoan parasite communities of 269 yellow eels (Anguilla rostrata) inhabiting acidic (pH 4.5-5.0) and deacidified (limed to a pH of 6.0-7.0) portions of a watershed in southwest Nova Scotia were compared over 3 years. Paraquimperia tenerrima, Ergasilus celestis, Bothriocephalus claviceps, Proteocephalus macrocephalus, Crepidostomum brevivitellum, and Azygia longa were found. Species richness was greater and there were more multiple infections in the component community in eels from the limed portion of the watershed than in the community in the acidic river. Differential susceptibility of the parasites or their intermediate hosts to acidification appears to be involved in structuring the community. Digeneans were absent from eels in the acidic river. The copepod E. celestis occurred throughout the watershed but was less common in the acidic river. The occurrences of two species, B. claviceps, and P. macrocephalus, were similar at acidified and limed sites. Numbers of infected fish and prevalence of the dominant parasite, P. tenerrima, were highly variable in eels from the acidic region, but were relatively stable at the limed site. It is concluded that the assemblage of metazoan parasites of fish may be useful as environmental indicators, and may also provide information on the dynamics of altered food webs©1993 National Research Council Canada
MARCOGLIESE, D.J., 1992. First report of threespine stickleback, Gasterosteus aculeatus, from Sable Island. Can. Field-Nat., 196: 264-266 .
MARCOGLIESE, D.J., G. McCLELLAND, 1992. Corynosoma wegeneri (Acanthocephala : Polymorphida) and Pseudoterranova decipiens (Nematoda : Ascaridoidea) larvae in Scotian Shelf groundfish. Can. J. Fish. Aquat. Sci., 49: 2062-2069 .
MARCOGLIESE, D.J., G.W. ESCH, R.V. DIMOCK, Jr., 1992. Alterations in zooplankton community structure after selenium-induced replacement of a fish community : a natural whole-lake experiment. Hydrobiologia, 242: 19-32 .
MARCOGLIESE, D.J., G.W. ESCH, 1992. Alterations of vertical distribution and migration of zooplankton in relation to temperature. Am. Midl. Nat., 128: 139-155 .
MARCOGLIESE, D.J., 1992. Neomysis americana (Crustacea : Mysidacea) as an intermediate host for sealworm, Pseudoterranova decipiens (Nematoda : Ascaridoidea), and spirurid nematodes (Acuarioidea). Can. J. Fish. Aquat. Sci., 49: 513-515 .
MARCOGLIESE, D.J., 1992. Metazoan parasites of sticklebacks on Sable Island, Northwest Atlantic Ocean : biogeographic considerations. J. Fish. Biol., 41: 399-407 .
MARCOGLIESE, D.J., D.K. CONE, 1991. Do brook charr (Salvelinus fontinalis) from insular Newfoundland have different parasites than their mainland counterparts. Can. J. Zool., 69: 809-811 .
Based on the published literature, comparison of the metazoan parasite faunas of brook char (Salvelinus fontinalis) from freshwater localities in northeastern North America reveals that hosts in insular Newfoundland have fewer parasite species recorded from them. Of 45 parasite species or taxa, only 20 are common to the island and the mainland. Twenty-three parasite species have been reported from the mainland but not from the island, with most of the taxa being types common to non-salmonid fishes. Two species, the copepod Ergasilus luciopercarum and the digenean Tetracotyle, have been reported from charr on the island but not from the northeastern mainlan. It is suggested that the primary reason for the difference in the structure of the assemblages is the lack of contact brook charr in Newfoundland have with percid, cyprinid, centrarchid, esocid, and catostomid fishes and their parasites©1991 National Research Council Canada
MARCOGLIESE, D.J., D.K. CONE, 1991. Importance of lake characteristics in structuring parasite communities of salmonids from insular Newfoundland. Can. J. Zool., 69: 2962-2967 .
Metazoan parasites of Salmo salar and Salvelinus fontinalis were studied at eight sites in insular Newfoundland. The locations included water bodies of various sizes (<1, 1-100, and >100 ha) and depths (<1, 1-5, and >5 m). Nine of 14 parasite species were salmonid specialists and generally had wider geographic distributions than the remaining generalists, with one exception (Echinorhynchus lateralis). The distributions of Crepidostomum farionis, Sterliadochona ephemeridarum, and E. lateralis appeared to be facilitated by the widespread distribution of intermediate hosts. Larval digeneans (Apophallus imperator, Diplostomum sp., and Tetracotyle sp.) were typically associated with shallow medium-sized lakes. Species using limnetic copepods as intermediate hosts (Philonema agubernaculum, Eubothrium salvelini, and Diphyllobothrium sp.) were most often found in fishes inhabiting the deeper lakes. Small ponds had low parasite richness (R=5); medium and large lakes had similar richness (R=9-11). Jaccard's index and cluster analysis revealed that fishes in the small ponds and deep lakes had inherently different parasites from fishes of the shallow medium-sized lakes, the latter containing fishes parasitized by larval digeneans. Based on the study it was concluded that lake depth is a fundamental factor determining the structure of parasite communities in salmonids in insular Newfoundland. (DBO)©1991 National Research Council Canada
MARCOGLIESE, D.J., 1991. Seasonal occurrence of Lernaea cyprinacea on fishes in Belews Lake, North Carolina. J. Parasitol., 77: 326-327 .
MARCOGLIESE, D.J., T.M. GOATER, G.W. ESCH, 1990. Crepidostomum cooperi (Allocreadidae) in the burrowing mayfly, Hexagenia limbata (Ephemeroptera) related to trophic status of a lake. Am. Midl. Nat., 124: 309-317 .
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