Louise Goggin | NSW Office of Environment and Heritage (original) (raw)

Papers by Louise Goggin

International Journal for Parasitology, 1997

To identify the pathogens and possible biological control agents for the introduced seastar Aster... more To identify the pathogens and possible biological control agents for the introduced seastar Asterias amurensis, we examined seastars from source populations in central and northern Japan. In particular, we sought the scuticociliate Orchitophrya cf. stellarum. The ciliate was found in male A. amurensis from five sites. We also found the caprellid amphipod Caprella astericola on A. amurensis and Distolasterias nipon from Nemuro Bay. The copepod Scottomyzon gibberum was found on A. amurensis from Usujiri and polychaete scaleworms Arctonoe vittata were found on A. amurensis from Murohama and Nemuro Bay. Of these parasites and commensals, Orchitophrya cf. stellarum is the most likely agent for biological control of A. amurensis in Australian waters; however, its ability to regulate seastar populations is uncertain.

International Journal for Parasitology, 1997

International Journal for Parasitology, 1989

... INDEX KEY WORDS: Tridacnids; turbellarian; Urastoma ; clam. IN August 1987 large numbers of a... more ... INDEX KEY WORDS: Tridacnids; turbellarian; Urastoma ; clam. IN August 1987 large numbers of a turbellarian were found on the gills of three dying, 2-year old, cultured Tridacna gigas fromFitzroy Island. ... Marcus (1951) recognized two species of Uras-toma. ...

Diseases of Aquatic Organisms, 1989

Infections of Perkinsus spp. were initiated In 9 mollusc species using zoospores from cultured pr... more Infections of Perkinsus spp. were initiated In 9 mollusc species using zoospores from cultured prezoosporangia held in petri dishes containing seawater We transferred parasites isolated from bivalves to gastropods and vice versa. Isolates from tropical, subtropical and temperate hosts were transferred to mollusc hosts from different climate origins. Some hosts, e.g. Saccostrea commercialis, were largely refractory, with only light infections developing in a few molluscs. Other hosts, e.g. Anaddra trapezia and P~nctada sugillata, became heav~ly infected. An experimental infection in one A. trapezia endured in the laboratory for 7 mo.

Diseases of Aquatic Organisms, 1996

Leslons found in bay scallops Argopecten ~r r a d i -more than 1 organism associated with this na... more Leslons found in bay scallops Argopecten ~r r a d i -more than 1 organism associated with this name which ans imported into Atlantic Canada for culture were attributed may later be described outside the genus Perkinsus, to a parasite Perklnsus karlssonj It appears, however, that Bay scallops Argopecten irradians imported into stages froin several organisms were combined to create the life cvcle of P karlsson~. The ultrastructure of the aaent In Canada for in and suffered heavy d lesions of bay scallops IS not documented adequately to dlag-POSt-Spawnlng nlortalltles McGladdery et al. (1991) nose affinities to the genus Perklnsus Furthermore, there was described 'swlrl' leslons from the bay scallops whlch discrepancy as to whether P karlsson~ enlarged in f l u~d thio-O Inter-Research 1996 Resale of full a r t~c l e not p e r m~t t e d

European Journal of Protistology, 1996

A phylogenetic analysis of the 16S-like ribosomal RNA coding regions from Labyrinthuloides haliot... more A phylogenetic analysis of the 16S-like ribosomal RNA coding regions from Labyrinthuloides haliotidis, Developayella elegans, Proteromonas lacertae and other organisms corroborates morphological evidence that proteromonads and other eukaryotes with tripartite tubular hairs form a monophyletic group of organisms, the stramenopiles. Within the stramenopiles, the heterotrophic groups (proteromonads, Labyrinthulida, bicosoecids, Developayella and oomycetes) diverge before the radiation of the "heterokont algae", the autotrophic stramenopiles. The stramenopiles were initially "protozoan" but their ecological success is largely attributable to the late symbiotic acquisition of chloroplasts. The stramenopiles and other taxa with chlorophyll a+c containing chloroplasts (cryptomonads, dinoflagellates, and haptophytes) do not share a common autotrophic ancestor. These photosynthetic assemblages acquired their plastids independently.

Marine and Freshwater Research, 1995

ABSTRACT Perkinsus parasites are widespread in molluscs around the world. In 1985 and 1986, a die... more ABSTRACT Perkinsus parasites are widespread in molluscs around the world. In 1985 and 1986, a die-back of greenlip abalone, Haliotis laevigata, occurred along part of the South Australian coast. Perkinsus olseni was abundant in H. laevigata from the die-back area and widespread around the Yorke Peninsula in other hosts. After the epizootic had passed, two attempts were made to repopulate the area by transplanting adult H. laevigata; the second attempt, in 1989, appears to have been successful. Laboratory experiments showed that abalone infected with P. olseni had a higher mortality rate than did uninfected abalone and that stress such as high temperature predisposed the abalone to disease. During winter, abalone appear able to contain and possibly eliminate the infection. Molecular studies have indicated that there is a single species of Perkinsus in Australia that is widespread in abalone and bivalves from the Great Barrier Reef and South Australia but is not found in molluscs in Tasmania. This parasite, P. olseni, is similar to P. atlanticus from Portugal but different from P. marinus in North America. P. olseni was shown to be highly infectious to a range of molluscs in the laboratory. P. marinus can be cultured in vitro; this will facilitate investigation into the susceptibility of the parasite to therapeutic agents, the mechanisms of host defence, and the affinities of Perkinsus parasites isolated from Australia and elsewhere.

Journal of Crustacean Biology, 2000

... Pests, CSIRO Marine Research, GPO Box 1538, Hobart, 7001, Tasmania, Australia (e-mail: nicole... more ... Pests, CSIRO Marine Research, GPO Box 1538, Hobart, 7001, Tasmania, Australia (e-mail: nicole ... Ms. Malin Werner, Kristineberg Marine Re-search Station, Fiskebackskil, Sweden; Dr. Tony Clare, Marine Biological Association, Plymouth, England; Dr. Graham Walker ...

Diseases of Aquatic Organisms, 1987

Bivalves from the Great Barrier Reef were examined for Perkinsus infection using the thioglycolla... more Bivalves from the Great Barrier Reef were examined for Perkinsus infection using the thioglycollate method (Ray 1966). They were taken from Heron, Lizard, Orpheus, North Direction and Thetford Reefs. Thirty of the 84 species examined were Infected (160 out of 644 individuals). They belonged to 23 families. The 4 most frequently infected families, in descending order, were Chamidae, Arcidae, Tridacnidae and Spondylidae. All of 4 moribund Tr~dacna gigas examined were infected.

Journal of Helminthology, 1996

International Journal for Parasitology, 1997

Proceedings of The National Academy of Sciences, 1996

Sequences of nuclear-encoded small-subunit rRNA genes have been determined for representatives of... more Sequences of nuclear-encoded small-subunit rRNA genes have been determined for representatives of the enigmatic genera Dermocystidium, Ichthyophonus, and Psorospermium, protistan parasites of fish and crustaceans. The small-subunit rRNA genes from these parasites and from the ``rosette agent'' (also a parasite of fish) together form a novel, statistically supported clade. Phylogenetic analyses demonstrate this clade to diverge near the animal-fungal dichotomy, although more precise resolution is problematic. In the most parsimonious and maximally likely phylogenetic frameworks inferred from the most stably aligned sequence regions, the clade constitutes the most basal branch of the metazoa; but within a limited range of model parameters, and in some analyses that incorporate less well-aligned sequence regions, an alternative topology in which it diverges immediately before the animal-fungal dichotomy was recovered. Mitochondrial cristae of Dermocystidium spp. are flat, whereas those of Ichthyophonus hoferi appear tubulovesiculate. These results extend our understanding of the types of organisms from which metazoa and fungi may have evolved.

Diseases of Aquatic Organisms, 2000

Nucleotide sequence from the internal transcribed spacers (ITS1 and ITS2) and the 5.8s gene from ... more Nucleotide sequence from the internal transcribed spacers (ITS1 and ITS2) and the 5.8s gene from the r~bosomal RNA gene cluster of isolates of the scuticociliate Orchitophrya stellarum from 4 asteroid hosts were compared. Surprisingly, these data (495 bp) were identical for 0. stellarum isolated from the testes of Astenas amurensis from Japan; Pisaster ochraceus from British Columbia, Canada; Asterias rubens from The Netherlands; and Astenas vulgaris from Prince Edward Island, Canada. These sequence data were compared to those from 3 scuticociliates which parasitise crustaceans: Mesanophrys pugettensis, M. chesapeakensis and Anophryoides haemophila. No difference was found in this region between the nucleotide sequence of M pugettensis and M. chesapeakensis The sequence of Mesanophrys spp. differed by 9 2 % in the ITS1 and 4.7 % in the ITS2 from that of 0. stellarum. The sequence from the ITS1 (135 bp) and ITS2 (233 bp) of A. haenlophila differed by 42 6 and 20.5% respectively from those of 0. stellarum. Therefore, nucleotide sequence of the ITS regions in these scuticociliates is highly conserved.

Proceedings of The National Academy of Sciences, 1998

Epidermal changes caused by a chytridiomycete fungus (Chytridiomycota; Chytridiales) were found i... more Epidermal changes caused by a chytridiomycete fungus (Chytridiomycota; Chytridiales) were found in sick and dead adult anurans collected from montane rain forests in Queensland (Australia) and Panama during mass mortality events associated with significant population declines. We also have found this new disease associated with morbidity and mortality in wild and captive anurans from additional locations in Australia and Central America. This is the first report of parasitism of a vertebrate by a member of the phylum Chytridiomycota. Experimental data support the conclusion that cutaneous chytridiomycosis is a fatal disease of anurans, and we hypothesize that it is the proximate cause of these recent amphibian declines.

The Solomon Islands have one of the highest diversities of coral and fish species anywhere in the... more The Solomon Islands have one of the highest diversities of coral and fish species anywhere in the world with several recently discovered species that are new to science. These discoveries were made during a five-week scientific expedition to survey the marine life of the Solomon Islands, led by The Nature Conservancy and involving local and international non-government organisations and Australian scientific organisations. The survey of the Solomon Islands was a Rapid Ecological Assessment to document the biodiversity and status of marine ecosystems in the Solomon Islands as quickly as possible. Results have confirmed the effectiveness of conservation areas, particularly that of the Arnavon Islands which was established almost 10 years ago, showing that they can protect commercially important species and can help them to recover from overfishing. Outside conservation areas however, overfishing is widespread and there are many challenges to maintain the unique biodiversity

International Journal for Parasitology, 1997

To identify the pathogens and possible biological control agents for the introduced seastar Aster... more To identify the pathogens and possible biological control agents for the introduced seastar Asterias amurensis, we examined seastars from source populations in central and northern Japan. In particular, we sought the scuticociliate Orchitophrya cf. stellarum. The ciliate was found in male A. amurensis from five sites. We also found the caprellid amphipod Caprella astericola on A. amurensis and Distolasterias nipon from Nemuro Bay. The copepod Scottomyzon gibberum was found on A. amurensis from Usujiri and polychaete scaleworms Arctonoe vittata were found on A. amurensis from Murohama and Nemuro Bay. Of these parasites and commensals, Orchitophrya cf. stellarum is the most likely agent for biological control of A. amurensis in Australian waters; however, its ability to regulate seastar populations is uncertain.

International Journal for Parasitology, 1997

International Journal for Parasitology, 1989

... INDEX KEY WORDS: Tridacnids; turbellarian; Urastoma ; clam. IN August 1987 large numbers of a... more ... INDEX KEY WORDS: Tridacnids; turbellarian; Urastoma ; clam. IN August 1987 large numbers of a turbellarian were found on the gills of three dying, 2-year old, cultured Tridacna gigas fromFitzroy Island. ... Marcus (1951) recognized two species of Uras-toma. ...

Diseases of Aquatic Organisms, 1989

Infections of Perkinsus spp. were initiated In 9 mollusc species using zoospores from cultured pr... more Infections of Perkinsus spp. were initiated In 9 mollusc species using zoospores from cultured prezoosporangia held in petri dishes containing seawater We transferred parasites isolated from bivalves to gastropods and vice versa. Isolates from tropical, subtropical and temperate hosts were transferred to mollusc hosts from different climate origins. Some hosts, e.g. Saccostrea commercialis, were largely refractory, with only light infections developing in a few molluscs. Other hosts, e.g. Anaddra trapezia and P~nctada sugillata, became heav~ly infected. An experimental infection in one A. trapezia endured in the laboratory for 7 mo.

Diseases of Aquatic Organisms, 1996

Leslons found in bay scallops Argopecten ~r r a d i -more than 1 organism associated with this na... more Leslons found in bay scallops Argopecten ~r r a d i -more than 1 organism associated with this name which ans imported into Atlantic Canada for culture were attributed may later be described outside the genus Perkinsus, to a parasite Perklnsus karlssonj It appears, however, that Bay scallops Argopecten irradians imported into stages froin several organisms were combined to create the life cvcle of P karlsson~. The ultrastructure of the aaent In Canada for in and suffered heavy d lesions of bay scallops IS not documented adequately to dlag-POSt-Spawnlng nlortalltles McGladdery et al. (1991) nose affinities to the genus Perklnsus Furthermore, there was described 'swlrl' leslons from the bay scallops whlch discrepancy as to whether P karlsson~ enlarged in f l u~d thio-O Inter-Research 1996 Resale of full a r t~c l e not p e r m~t t e d

European Journal of Protistology, 1996

A phylogenetic analysis of the 16S-like ribosomal RNA coding regions from Labyrinthuloides haliot... more A phylogenetic analysis of the 16S-like ribosomal RNA coding regions from Labyrinthuloides haliotidis, Developayella elegans, Proteromonas lacertae and other organisms corroborates morphological evidence that proteromonads and other eukaryotes with tripartite tubular hairs form a monophyletic group of organisms, the stramenopiles. Within the stramenopiles, the heterotrophic groups (proteromonads, Labyrinthulida, bicosoecids, Developayella and oomycetes) diverge before the radiation of the "heterokont algae", the autotrophic stramenopiles. The stramenopiles were initially "protozoan" but their ecological success is largely attributable to the late symbiotic acquisition of chloroplasts. The stramenopiles and other taxa with chlorophyll a+c containing chloroplasts (cryptomonads, dinoflagellates, and haptophytes) do not share a common autotrophic ancestor. These photosynthetic assemblages acquired their plastids independently.

Marine and Freshwater Research, 1995

ABSTRACT Perkinsus parasites are widespread in molluscs around the world. In 1985 and 1986, a die... more ABSTRACT Perkinsus parasites are widespread in molluscs around the world. In 1985 and 1986, a die-back of greenlip abalone, Haliotis laevigata, occurred along part of the South Australian coast. Perkinsus olseni was abundant in H. laevigata from the die-back area and widespread around the Yorke Peninsula in other hosts. After the epizootic had passed, two attempts were made to repopulate the area by transplanting adult H. laevigata; the second attempt, in 1989, appears to have been successful. Laboratory experiments showed that abalone infected with P. olseni had a higher mortality rate than did uninfected abalone and that stress such as high temperature predisposed the abalone to disease. During winter, abalone appear able to contain and possibly eliminate the infection. Molecular studies have indicated that there is a single species of Perkinsus in Australia that is widespread in abalone and bivalves from the Great Barrier Reef and South Australia but is not found in molluscs in Tasmania. This parasite, P. olseni, is similar to P. atlanticus from Portugal but different from P. marinus in North America. P. olseni was shown to be highly infectious to a range of molluscs in the laboratory. P. marinus can be cultured in vitro; this will facilitate investigation into the susceptibility of the parasite to therapeutic agents, the mechanisms of host defence, and the affinities of Perkinsus parasites isolated from Australia and elsewhere.

Journal of Crustacean Biology, 2000

... Pests, CSIRO Marine Research, GPO Box 1538, Hobart, 7001, Tasmania, Australia (e-mail: nicole... more ... Pests, CSIRO Marine Research, GPO Box 1538, Hobart, 7001, Tasmania, Australia (e-mail: nicole ... Ms. Malin Werner, Kristineberg Marine Re-search Station, Fiskebackskil, Sweden; Dr. Tony Clare, Marine Biological Association, Plymouth, England; Dr. Graham Walker ...

Diseases of Aquatic Organisms, 1987

Bivalves from the Great Barrier Reef were examined for Perkinsus infection using the thioglycolla... more Bivalves from the Great Barrier Reef were examined for Perkinsus infection using the thioglycollate method (Ray 1966). They were taken from Heron, Lizard, Orpheus, North Direction and Thetford Reefs. Thirty of the 84 species examined were Infected (160 out of 644 individuals). They belonged to 23 families. The 4 most frequently infected families, in descending order, were Chamidae, Arcidae, Tridacnidae and Spondylidae. All of 4 moribund Tr~dacna gigas examined were infected.

Journal of Helminthology, 1996

International Journal for Parasitology, 1997

Proceedings of The National Academy of Sciences, 1996

Sequences of nuclear-encoded small-subunit rRNA genes have been determined for representatives of... more Sequences of nuclear-encoded small-subunit rRNA genes have been determined for representatives of the enigmatic genera Dermocystidium, Ichthyophonus, and Psorospermium, protistan parasites of fish and crustaceans. The small-subunit rRNA genes from these parasites and from the ``rosette agent'' (also a parasite of fish) together form a novel, statistically supported clade. Phylogenetic analyses demonstrate this clade to diverge near the animal-fungal dichotomy, although more precise resolution is problematic. In the most parsimonious and maximally likely phylogenetic frameworks inferred from the most stably aligned sequence regions, the clade constitutes the most basal branch of the metazoa; but within a limited range of model parameters, and in some analyses that incorporate less well-aligned sequence regions, an alternative topology in which it diverges immediately before the animal-fungal dichotomy was recovered. Mitochondrial cristae of Dermocystidium spp. are flat, whereas those of Ichthyophonus hoferi appear tubulovesiculate. These results extend our understanding of the types of organisms from which metazoa and fungi may have evolved.

Diseases of Aquatic Organisms, 2000

Nucleotide sequence from the internal transcribed spacers (ITS1 and ITS2) and the 5.8s gene from ... more Nucleotide sequence from the internal transcribed spacers (ITS1 and ITS2) and the 5.8s gene from the r~bosomal RNA gene cluster of isolates of the scuticociliate Orchitophrya stellarum from 4 asteroid hosts were compared. Surprisingly, these data (495 bp) were identical for 0. stellarum isolated from the testes of Astenas amurensis from Japan; Pisaster ochraceus from British Columbia, Canada; Asterias rubens from The Netherlands; and Astenas vulgaris from Prince Edward Island, Canada. These sequence data were compared to those from 3 scuticociliates which parasitise crustaceans: Mesanophrys pugettensis, M. chesapeakensis and Anophryoides haemophila. No difference was found in this region between the nucleotide sequence of M pugettensis and M. chesapeakensis The sequence of Mesanophrys spp. differed by 9 2 % in the ITS1 and 4.7 % in the ITS2 from that of 0. stellarum. The sequence from the ITS1 (135 bp) and ITS2 (233 bp) of A. haenlophila differed by 42 6 and 20.5% respectively from those of 0. stellarum. Therefore, nucleotide sequence of the ITS regions in these scuticociliates is highly conserved.

Proceedings of The National Academy of Sciences, 1998

Epidermal changes caused by a chytridiomycete fungus (Chytridiomycota; Chytridiales) were found i... more Epidermal changes caused by a chytridiomycete fungus (Chytridiomycota; Chytridiales) were found in sick and dead adult anurans collected from montane rain forests in Queensland (Australia) and Panama during mass mortality events associated with significant population declines. We also have found this new disease associated with morbidity and mortality in wild and captive anurans from additional locations in Australia and Central America. This is the first report of parasitism of a vertebrate by a member of the phylum Chytridiomycota. Experimental data support the conclusion that cutaneous chytridiomycosis is a fatal disease of anurans, and we hypothesize that it is the proximate cause of these recent amphibian declines.

The Solomon Islands have one of the highest diversities of coral and fish species anywhere in the... more The Solomon Islands have one of the highest diversities of coral and fish species anywhere in the world with several recently discovered species that are new to science. These discoveries were made during a five-week scientific expedition to survey the marine life of the Solomon Islands, led by The Nature Conservancy and involving local and international non-government organisations and Australian scientific organisations. The survey of the Solomon Islands was a Rapid Ecological Assessment to document the biodiversity and status of marine ecosystems in the Solomon Islands as quickly as possible. Results have confirmed the effectiveness of conservation areas, particularly that of the Arnavon Islands which was established almost 10 years ago, showing that they can protect commercially important species and can help them to recover from overfishing. Outside conservation areas however, overfishing is widespread and there are many challenges to maintain the unique biodiversity