The Host Range of Saprolegnia Parasitica

Tiffney, Wesley N.

doi:10.1080/00275514.1939.12017346

Cited by 26 publications

(14 citation statements)

References 5 publications

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“…Contact with the side of the livewell may increase the likelihood of either ocular lesions (McLaughlin, Grizzle & Whitely 1997) or dermal lesions (Steeger, Grizzle, Weathers & Newman 1994). Contact can also remove the mucous layer that protects fish from colonisation by foreign organisms and possesses anti‐fungal properties (Tiffney 1939). In contrast, largemouth bass settle to the bottom of the livewell during adverse conditions, orient to face the disturbance, and may be less affected by adverse wave conditions and livewell confinement than walleye.…”

Section: Discussionmentioning

confidence: 99%

Behaviour of walleye, Sander vitreus, and largemouth bass, Micropterus salmoides, exposed to different wave intensities and boat operating conditions during livewell confinement

Suski

Cooke

Killen

et al. 2005

Fisheries Management Eco

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During live-release angling tournaments in North America, fish are typically retained in livewells onboard boats during the angling day. Mortality of fish occurs at some tournaments, and wave intensities and livewell conditions may influence mortality levels. This study used two species of fish targeted in live-release angling tournaments in North America (largemouth bass Micropterus salmoides L. and walleye Sander vitreus L.) to quantify the response(s) of fish in livewells to different wave treatments. Video analyses revealed that largemouth bass were active during low intensity disturbances, but during violent boat movements tended to settle to the bottom of the livewell and orient to face the direction of the disturbance. Walleye were less active than bass for all treatments, and additionally did not orient to face the direction of disturbance, consequently contacting the side of the livewell during boat rocking. These results are considered in the context of mortality at live-release tournaments.K E Y W O R D S : activity, behaviour, largemouth bass, livewell, tournament, videography, walleye.

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Section: Discussionmentioning

confidence: 99%

Behaviour of walleye, Sander vitreus, and largemouth bass, Micropterus salmoides, exposed to different wave intensities and boat operating conditions during livewell confinement

Suski

Cooke

Killen

et al. 2005

Fisheries Management Eco

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“…Pathogenic Saprolegniaceae species create a chronic, fungal-like infection in freshwater fish, often acting as secondary invaders in lesions or abrasions caused by other 64 VAN GAEST ET AL. pathogens, excessive handling, or poor environmental conditions (Tiffney 1939;Meyer 1991;Mueller and Whisler 1994;Bruno and Wood 1999;Roberts 2001). However, the only study, to our knowledge, of saprolegniasis in the Columbia River basin focused on the presence and diversity of Saprolegniaceae isolates taken from salmonids, but did not report on the prevalence of infection (Mueller and Whisler 1994).…”

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confidence: 99%

Survey of Pathogens in Hatchery Chinook Salmon with Different Out‐Migration Histories through the Snake and Columbia Rivers

et al. 2011

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The operation of the Federal Columbia River Power System (FCRPS) has negatively affected threatened and endangered salmonid populations in the Pacific Northwest. Barging Snake River spring Chinook salmon Oncorhynchus tshawytscha through the FCRPS is one effort to mitigate the effect of the hydrosystem on juvenile salmon out-migration. However, little is known about the occurrence and transmission of infectious agents in barged juvenile salmon relative to juvenile salmon that remain in-river to navigate to the ocean. We conducted a survey of hatchery-reared spring Chinook salmon at various points along their out-migration path as they left their natal hatcheries and either migrated in-river or were barged through the FCRPS. Salmon kidneys were screened by polymerase chain reaction for nine pathogens and one family of water molds. Eight pathogens were detected; the most prevalent were Renibacterium salmoninarum and infectious hematopoietic necrosis virus. Species in the family Saprolegniaceae were also commonly detected. Pathogen prevalence was significantly greater in fish that were barged through the FCRPS than in fish left to out-migrate in-river. These results suggest that the transmission of infectious agents to susceptible juvenile salmon occurs during the barging process. Therefore, management activities that reduce pathogen exposure during barging may increase the survival of juvenile Chinook salmon after they are released.

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“…Before placing the fish into troughs, fish were injured slightly in the skin by scrapping a few scales from two lateral regions ofthe body and one at the fin. In each experimental trough, the zoospores concentrations of the fungal species was prepared in sterile tap water on the lines of Tiffney (1939) and Scott and O'Warren (1964). All the fungal species were inoculated into separate troughs.…”

Section: Methodsmentioning

confidence: 99%

Pathogenicity of some Species of Pythium Pringsheim on Certain Fresh Water Temperate Fishes/Pathogenität einiger Arten von Pythium Pringsheim auf Süßwasserfische gemäßigter Breiten

Khulbe

1983

Mycoses

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Summary: Eight species of Pythium, P. aphanidermatum, P. debaryanum, P. inflatum, P. echinulatum, P. pulcharum, P. spinosum, P. undulatum and P. vaxans were studied for their parasitic capability in temperate fresh water fishes and found to be pathogenic in laboratory condition. Puntius ticto and P. conchonius were more sensitive than Carassius auratus. Nemacheilus rupicola was found immune to all the Pythium species. Fungal species were also found variable in their parasitic capability. Zusammenfassung: Unter Laborbedingungen wurde die Fáhigkeit zum Parasitismus bei Süßwasserfischen gemäßigter Breiten mit 8 Arten der Gattung Pythium (P. aphanidermatum, P. debaryanum, P. inflatum, P. echinulatum, P. pulcharum, P. spinosum, P. undulatum und P. vaxans) geprüft. Puntius ticto und P. conchonius reagierten empfindlicherals Carassius auratus. Nemachilus rupicola war gegen alle Pythium‐Arten immun. Auch die einzelnen Pilz‐Spezies wiesen eine unterschiedliche Fáhigkeit zum Parasitismus auf.

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The Host Range of Saprolegnia Parasitica

Cited by 26 publications

References 5 publications

Behaviour of walleye, Sander vitreus, and largemouth bass, Micropterus salmoides, exposed to different wave intensities and boat operating conditions during livewell confinement

Behaviour of walleye, Sander vitreus, and largemouth bass, Micropterus salmoides, exposed to different wave intensities and boat operating conditions during livewell confinement

Survey of Pathogens in Hatchery Chinook Salmon with Different Out‐Migration Histories through the Snake and Columbia Rivers

Pathogenicity of some Species of Pythium Pringsheim on Certain Fresh Water Temperate Fishes/Pathogenität einiger Arten von Pythium Pringsheim auf Süßwasserfische gemäßigter Breiten

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