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Articles 1 - 17 of 17
Full-Text Articles in Immunology and Infectious Disease
Biophysical Factors Impacting Sea Lice Settlement And Survival, Eleanor R. Glahn
Biophysical Factors Impacting Sea Lice Settlement And Survival, Eleanor R. Glahn
Electronic Theses and Dissertations
Atlantic salmon (Salmo salar L.) aquaculture production in Maine is a valuable contributor to the economy, the expansion of which has been challenged by the parasitic salmon louse Lepeophtheirus salmonis. As planktonic organisms, the life of the salmon louse is primarily dictated by the physical conditions of the environment: the temperature for development time, salinity for survival, and current velocity for transport. Salmon lice are obligate parasites for whom the successful infection of a suitable host is critical to completion of their life cycle. However, little is understood about the effects of current velocity on infection success. Hydrodynamic …
Sensitivity Of A Lamp Assay For Detection Of The Dinoflagellate Amyloodinium Ocellatum In Simulated Field Conditions And Freeze Tolerance Of The Parasite, Robert Gonzales
Sensitivity Of A Lamp Assay For Detection Of The Dinoflagellate Amyloodinium Ocellatum In Simulated Field Conditions And Freeze Tolerance Of The Parasite, Robert Gonzales
Master's Theses
The obligate parasitic dinoflagellate Amyloodinium ocellatum causes amyloodiniosis in warm water marine fishes. The prolific parasite, which has a direct, three-stage life cycle, is highly infectious and can cause heavy losses in aquaculture. Prevention, biosecurity, and early detection are vital for control. In this work, microscopy and a loop-mediated isothermal amplification (LAMP) assay were compared for early diagnosis of A. ocellatum in cultured stocks, and the freeze tolerance of tomonts was assessed to determine if frozen wild fish used as fish food can serve as a potential vector for the parasite.
The lowest dinospore concentration that could be detected by …
Ecological Risk Assessment For The Temperate Demersal Elasmobranch Resource, Department Of Primary Industries And Regional Development, Western Australia
Ecological Risk Assessment For The Temperate Demersal Elasmobranch Resource, Department Of Primary Industries And Regional Development, Western Australia
Fisheries research reports
No abstract provided.
Squid And Cuttlefish Resources Of Western Australia, Daniel Yeoh, Danielle J. Johnston Phd, David C. Harris
Squid And Cuttlefish Resources Of Western Australia, Daniel Yeoh, Danielle J. Johnston Phd, David C. Harris
Fisheries research reports
No abstract provided.
Otoliths Of South-Western Australian Fish: A Photographic Catalogue, Chris Dowling, Kim Smith, Elain Lek, Joshua Brown
Otoliths Of South-Western Australian Fish: A Photographic Catalogue, Chris Dowling, Kim Smith, Elain Lek, Joshua Brown
Fisheries research reports
No abstract provided.
Biophysical And Stable Isotopic Profiles Of The Salmon Louse Lepeophtheirus Salmonis (Krøyer, 1837), Emma Taccardi
Biophysical And Stable Isotopic Profiles Of The Salmon Louse Lepeophtheirus Salmonis (Krøyer, 1837), Emma Taccardi
Electronic Theses and Dissertations
The salmon louse Lepeophtheirus salmonis is a parasitic copepod that infects wild and farmed salmonids throughout the northern hemisphere. L. salmonis represents the largest economic hurdle of the Atlantic salmon (Salmo salar) industry, with an estimated annual cost of nearly $1 billion globally due to production losses and anti-parasitic control measures. Salmon farming in Maine has existed for decades and is a critical economic driver, yet the region is underrepresented in global sea lice research. The aim of this work was to examine parasites in the context of animal trophic transfer and characterize physiological condition by quantifying the …
Resource Assessment Report Temperate Demersal Elasmobranch Resource Of Western Australia, Matias Braccini, Nick Blay, S. A. Hesp, Brett Molony
Resource Assessment Report Temperate Demersal Elasmobranch Resource Of Western Australia, Matias Braccini, Nick Blay, S. A. Hesp, Brett Molony
Fisheries research reports
This document provides a cumulative description and assessment of the TDER and all of the fishing activities (i.e. fisheries / fishing sectors) affecting this resource in WA. Future Resource Assessment Reports will assess the Statewide Sharks and Rays Resource. The report is focused on the temperate indicator species (whiskery, gummy, dusky and sandbar sharks) used to assess the suites of demersal sharks and rays that comprise this resource. These species are primarily captured by demersal gillnets used in the TDGDLF that operate in the West Coast and South Coast Bioregions. For the North Coast bioregion, no commercial fishing for sharks …
Australian Herring And West Australian Salmon Scientific Workshop Report, October 2017, Department Of Primary Industries And Regional Development, Western Australia
Australian Herring And West Australian Salmon Scientific Workshop Report, October 2017, Department Of Primary Industries And Regional Development, Western Australia
Fisheries research reports
No abstract provided.
Gascoyne Demersal Scalefish Managed Fishery, Department Of Fisheries
Gascoyne Demersal Scalefish Managed Fishery, Department Of Fisheries
Fisheries occasional publications
An operators’ guide to the management arrangements 1 September 2015 – 31 August 2016.
Review Of Report On The “Status Of Nearshore Finfish Stocks In South-Western Western Australia: Australian Herring And Tailor”, Department Of Fisheries
Review Of Report On The “Status Of Nearshore Finfish Stocks In South-Western Western Australia: Australian Herring And Tailor”, Department Of Fisheries
Fisheries occasional publications
No abstract provided.
Proceedings Of The Western Australian Dhufish Workshop 2004, Mark Pagano, Terry Fuller
Proceedings Of The Western Australian Dhufish Workshop 2004, Mark Pagano, Terry Fuller
Fisheries occasional publications
The Western Australian Dhufish Workshop 2004 was a joint project between Recfishwest and the Western Australian Department of Fisheries.
The workshop incorporated presentations from the Department of Fisheries, Recfishwest, the Western Australian Fishing Industry Council, Murdoch University and Challenger TAFE to showcase current knowledge relating to the iconic dhufish in Western Australia. The perspectives of a recreational fisher, a commercial wetline operator and a metropolitan charter boat operator were also presented.
Through information sharing and discussion the workshop provided a platform to better understand the fundamental issues that underpin current and future management arrangements for this valuable resource. Both commercial …
Defeating Diplostomoid Dangers In Usa Catfish Aquaculture, Robin M. Overstreet, Stephen S. Curran
Defeating Diplostomoid Dangers In Usa Catfish Aquaculture, Robin M. Overstreet, Stephen S. Curran
Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications
Diplostomoid digenean metacercariae have caused widescale mortalities of channel catfish, Ictalurus punctatus (Rafinesque), at aquaculture farms in Louisiana, Mississippi and Arkansas, USA. Originally, based on a tentative diagnosis, the industry considered the primary harmful agent to be an introduced species from Europe, Bolbophorus confusus (Krause, 1914), frequently reported from the American white pelican, Pelecanus erythrorhynchos Gmelin. Our group has now shown, using ITS 1-2 plus three more-conservative gene fragments, that two sympatric species of Bolbophorus exist in the American white pelican. One, B. damnificus Overstreet et Curran, 2002, infects the musculature of catfish, and the other, probably not B. confusus …
Cardicola Forsteri (Digenea: Sanguinicolidae) From The Heart Of A Northern Bluefin Tuna, Thunnus Thynnus (Scombridae), In The Northwest Atlantic Ocean, Stephen A. Bullard, Robert J. Goldstein, Robert H. Goodwin Iii, Robin M. Overstreet
Cardicola Forsteri (Digenea: Sanguinicolidae) From The Heart Of A Northern Bluefin Tuna, Thunnus Thynnus (Scombridae), In The Northwest Atlantic Ocean, Stephen A. Bullard, Robert J. Goldstein, Robert H. Goodwin Iii, Robin M. Overstreet
Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications
We report a specimen of Cardicola forsteri Cribb, Daintith, and Munday, 2000 (Digenea: Sanguinicolidae) from the lumen of the heart of a northern bluefin tuna, Thunnus thynnus (Linnaeus, 1758) (Scombridae), that was 218 cm in total length (TL) and caught in the northwest Atlantic Ocean 12 km south of Cape Lookout, North Carolina. The hearts of 12 similarly sized northern bluefin tuna (127–262 cm TL) from George’s Bank, northwest Atlantic Ocean, were not infected. This is the first report of C. forsteri from a wild host and of a sanguinicolid from any scombrid in the northwest Atlantic Ocean. Bluefin tuna …
Potential Pathological Effects Of Blood Flukes (Digenea: Sanguinicolidae) On Pen-Reared Marine Fishes, Stephen A. Bullard, Robin M. Overstreet
Potential Pathological Effects Of Blood Flukes (Digenea: Sanguinicolidae) On Pen-Reared Marine Fishes, Stephen A. Bullard, Robin M. Overstreet
Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications
Sanguinicolids, or fish blood flukes, infect the vascular system of both marine and freshwater fishes, and some act as serious pathogens of hosts in aquaculture. Blood flukes typically possess a relatively benign relationship with wild fishes; however, cultured hosts near appropriate intermediate hosts (i.e., snail, bivalve, or polychaete) may accumulate heavy infections of the worms and their eggs. The resulting disease, sanguinicoliasis, has caused mass mortalities of fish reared in ponds and cages in North America, Europe, and Asia. In the life cycle, the cercaria emerges from the intermediate invertebrate host and penetrates into and matures in the definitive fish …
Six New Host Records And An Updated List Of Wild Hosts For Neobenedenia Melleni (Maccallum) (Monogenea: Capsalidae), Stephen A. Bullard, George W. Benz, Robin M. Overstreet, Ernest H. Williams Jr., Jay Hemdal
Six New Host Records And An Updated List Of Wild Hosts For Neobenedenia Melleni (Maccallum) (Monogenea: Capsalidae), Stephen A. Bullard, George W. Benz, Robin M. Overstreet, Ernest H. Williams Jr., Jay Hemdal
Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications
Six new host records and an updated list of wild hosts for Neobenedenia melleni (MacCallum) (Monogenea: Capsalidae) are provided. We report specimens of N. melleni from the skin of a whitefin sharksucker (Echeneis neucratoides Zuieuw [Echeneidae]) caught off Mayagüez, Puerto Rico; from the skin of a mosquitofish (Gambusia xanthosoma Greenfield [Poeciliidae)) caught in Little Salt Creek, Grand Cayman Island, British West Indies; from a freshwater immersion bath of red grouper (Epinephelus morio (Valenciennes) [Serranidae] caught in the Gulf of Mexico off Sarasota, Florida, U.S.A.; from the skin of a garden eel (Heteroconger hassi (Klausewitz and Eibl-Eibesfeldt) …
Susceptibility To Taura Syndrome Virus Of Some Penaeid Shrimp Species Native To The Gulf Of Mexico And The Southeastern United States, Robin M. Overstreet, Donald V. Lightner, Ken W. Hasson, Stacey Mcilwain, Jeffrey M. Lotz
Susceptibility To Taura Syndrome Virus Of Some Penaeid Shrimp Species Native To The Gulf Of Mexico And The Southeastern United States, Robin M. Overstreet, Donald V. Lightner, Ken W. Hasson, Stacey Mcilwain, Jeffrey M. Lotz
Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications
Experimental studies demonstrated that Penaeus setiferus, but not Penaeus aztecus or Penaeus duorarum, could be killed by Taura syndrome virus (TSV). However, specimens of P. setiferus that survived infection and both P. aztecus and P. duorarum at least 79 days postexposure that did not demonstrate gross signs of infection were shown to harbor virus by bioassay using Penaeus vannamei, a highly susceptible target host. Consequently, all three of those penaeids native to the southeast United States can serve as carriers or reservoir hosts of TSV without necessarily exhibiting disease. Infections in P. setiferus took longer to cause …
Rickettsial And Mollicute Infections In Hepatopancreatic Cells Of Cultured Pacific White Shrimp (Penaeus Vannamei), Rena M. Krol, William E. Hawkins, Robin M. Overstreet
Rickettsial And Mollicute Infections In Hepatopancreatic Cells Of Cultured Pacific White Shrimp (Penaeus Vannamei), Rena M. Krol, William E. Hawkins, Robin M. Overstreet
Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications
Infections by multiple species of bacteria occurred in hepatopancreatic epithelial cells of cultured Pacific white shrimp (Penaeus vannamei). Grossly, hepatopancreases of moribund shrimp were pale white. Light microscopically, hepatopancreatic tubules appeared atrophied and were associated with granulomas. Examination by scanning and transmission electron microscopy revealed heavy cytoplasmic infections by three forms of microorganisms: (1) a rickettsia-like bacterium, (2) a helical form of a mollicute-like bacterium, and (3) a filamentous mollicute-like bacterium. The rod-shaped rickettsia (900 nm long by 300 nm wide) appeared to be free in the cytoplasm and had both a plasma membrane and a cell wall. …