Epizootics of Malaysian cultured freshwater pond fishes by Piscinoodinium pillulare (Schaperclaus 1954) Lom 1981

Shaharom-Harrison, Faizah; Anderson, I. G.; Siti, A.Z.; Shazili, Noor Azhar Mohamed; Ang, K. J.; Azmi, T. I.

doi:10.1016/0044-8486(90)90107-x

Cited by 22 publications

(13 citation statements)

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“…Severe infections with P. pillulare in P. gonionotus cultivated in Malaysia from January 1986 through December 1987 were reported by Shaharom-Harrison et al (1990). Some authors observed loss of appetite, lethargy, and agglomeration below the water surface (Siti & Rokiah, 1988;Shaharom-Harrison et al, 1990), corroborating the present observations.…”

Section: Discussionsupporting

confidence: 81%

“…These facts contributed to significant economic losses. Similar parasitosis associated with high levels of organic matter was described by Shaharom-Harrison et al (1990) in Puntius gonionotus. The addition of chicken bowels to the fish diet, over population, and great quantity of food were the main causes of decreasing water quality, favoring parasitic reproduction (Martins, 1998) as observed in the present work.…”

Section: Discussionsupporting

confidence: 49%

“…Of the cases diagnosed, 73.3% occurred from May to August, demonstrating high fish susceptibility to parasites in the cold season when water temperature ranged from 17 to 24 o C. Temperatures below 24 o C or above 31.5 o C have contributed to mortality, according to Shaharom-Harrison et al (1990).…”

Section: Discussionmentioning

confidence: 99%

“…Jacobs (1946) and Lucký (1970) (Okaeme & Okojie, 1989). Moreover, the presence of P. pillulare in Malaysia caused mortality by inducing hyperplastic gills and obstruction of the respiratory surface (Shaharom-Harrison et al, 1990).…”

Section: Introductionmentioning

confidence: 99%

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Piscinoodinium pillulare (Schäperclaus, 1954) Lom, 1981 (Dinoflagellida) infection in cultivated freshwater fish from the Northeast region of São Paulo State, Brazil: parasitological and pathological aspects

et al. 2001

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The Aquaculture Center of Unesp, Jaboticabal, SP, Brazil, received fishes for diagnosis from fish farmers reporting fish crowding at pond edges and in water inlets. Fifty-three out of 194 cases showed round to oval, immobile whitish structures, measuring up to 162 mm diameter, identified as the dinoflagellate Piscinoodinium pillulare. In 34 diagnosed cases the parasites were present in the gills, in 2 on body surface, and 9 in both. Thirty-one out of 53 were tambacu hybrids hosts; 7, Piaractus mesopotamicus; 6, Colossoma macropomum; 5, Leporinus macrocephalus; 3, Oreochromis niloticus; and 1, Prochilodus lineatus. Fish showed increased mucous production on body surface and gills, while ecchymosis in the caudal peduncle and operculum was present. The gills also showed paleness, congestion, and petechiae. Histopathology presented a great number of trophonts situated between secondary lamellae, fixed to or detached from the epithelium. Primary lamellae presented interstitial hemorrhages, severe hyperplasia of the epithelium, goblet cells, and mononuclear infiltrates. The present work is the first report of P. pillulare in Brazil and emphasizes the importance of this dinoflagellate which caused significant economic losses from 1995 through 1997.

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Section: Discussionsupporting

confidence: 81%

Section: Discussionsupporting

confidence: 49%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Piscinoodinium pillulare (Schäperclaus, 1954) Lom, 1981 (Dinoflagellida) infection in cultivated freshwater fish from the Northeast region of São Paulo State, Brazil: parasitological and pathological aspects

et al. 2001

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“…The freshwater dinoflagellate Piscinoodinium pillulare causes RC 1989, 1992. similar problems in aquaculture systems (e.g. Shaharom-Harrison et al 1990). Ecological significance.…”

Section: Photomentioning

confidence: 99%

Parasitic Life Styles of Marine Dinoflagellates1

Coats

1999

J Eukaryotic Microbiology

164

132

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ABSTRACT. Several genera of marine dinoflagellates contain species that have evolved parasitic life styles. Dinoflagellate infections have been reported for a wide range of host organisms including sarcodines, ciliates, free-living dinoflagellates, various invertebrates, and a few vertebrates. Some dinoflagellates even parasitize other parasitic dinoflagellates. Most species are obligately parasitic and rely on heterotrophy as their sole means of nutrition; however, some are mixotrophic, as they possess chloroplasts during part or all of their ! t life cycle. Many are ectoparasites that use highly specialized structures to attach to their host and feed, while others are intracellular i parasites that feed by osmotrophy. Parasitic dinoflagellates often have adverse effects on their host that can lead to reproductive castration or death. The ecological importance of parasitic dinoflagellates is particularly evident during epidemic outbreaks that cause mass mortality of host organisms. Species that infect fish can pose threats to aquaculture, while other species can make commercially important 4 crustacea unpalatable. In the planktonic realm, parasitic dinoflagellates influence the structure and function of the microbial food web. They compete with copepods and other grazers by utilizing ciliates as hosts and can stimulate rapid recycling of nutrients by causing the decline of toxic and non-toxic red tides.

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2010

Fish Disease

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Epizootics of Malaysian cultured freshwater pond fishes by Piscinoodinium pillulare (Schaperclaus 1954) Lom 1981

Cited by 22 publications

References 3 publications

Piscinoodinium pillulare (Schäperclaus, 1954) Lom, 1981 (Dinoflagellida) infection in cultivated freshwater fish from the Northeast region of São Paulo State, Brazil: parasitological and pathological aspects

Piscinoodinium pillulare (Schäperclaus, 1954) Lom, 1981 (Dinoflagellida) infection in cultivated freshwater fish from the Northeast region of São Paulo State, Brazil: parasitological and pathological aspects

Parasitic Life Styles of Marine Dinoflagellates1

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