A Parasitological Survey of Slipper-Cupped Oysters (<i>Crassostrea iredalei</i>, Faustino, 1932) in the Philippines

Erazo-Pagador, Gregoria

doi:10.2983/035.029.0111

Cited by 11 publications

(5 citation statements)

References 10 publications

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“…Kebanyakan studies mengkaji keberadaan dan pengaruh parasites terhadap C. iredalei [38][39][40][41]. Effect of gregarine parasite, Nematopsis sp.…”

Section: E Discussionunclassified

“…In addition, oysters also experienced lesions, accumulation of brown cells and accumulation of hemocytes [38]. In addition to the gregarine parasite, C. iredalei is also susceptible to digenean trematodes, cestode parasites, polychaetes, copepods, bacteria and viruses attack [38][39][40]. Meanwhile, studies on the influence of abiotic environmental factors such as pollutants are still rare, for example, the effect of heavy metals [8,20].…”

Section: E Discussionmentioning

confidence: 99%

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Mantle and Its Protective Role of the Slipper-shaped Oyster (Crassostrea Iredalei) in Response to Crude Oil

Abidin

Leksono

Risjani

et al. 2022

International Journal of Biology and Biomedical Engineering

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The mantle plays important role in the mechanism of oyster protection caused by environmental pollutants. This study aims to analyze the effect of water accommodated fraction of crude oil on the mantle of Slipper-Shaped Oyster (Crassostrea iredalei) at different doses and time exposure. The ventral and posterior segments of the mantle were fixed, and tissue sections were stained with hematoxylin-eosin, PAS-Periodic acid–Schiff, and TEM-transmission electron microscopy techniques. HE-hematoxylin and eosin, PAS-alcian, and TEM-transmission electron microscopy were used to characterize the different mucosubstances and to describe the ultrastructure-related response on a certain part of the mantle after exposure. The tissues of epithelium, connective tissue, mucus cells, pigmented cells, numerous hemolymph sinuses, shell formation, and blood sinus were recognized under a light microscope. The mucous cell was excreted in all the concentrations (control, 12.5, 25, 50, and 100% Water Acomodate Fraction) and also in the time exposure (24, 48, 72, and 96 hours). A large number of mucous cells was produced in the inner mantle cavity (IMC) and outer mantle cavity (OMC). Mucous cells increased in number with increasing WAF concentration as well as the length of exposure time. The highest number of mucus cells was observed at 100% Water Accommodate Fraction (WAF) concentration and 96 hours of exposure. The structure and function of the mantle, the shell formation, the edge of the mantle, mucous cell, muscle bundles, nerve fibers, and epithelium layer of the Slipper-Shaped Oyster (Crassostrea iredalei) were documented in this study.

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“…Kebanyakan studies mengkaji keberadaan dan pengaruh parasites terhadap C. iredalei [38][39][40][41]. Effect of gregarine parasite, Nematopsis sp.…”

Section: E Discussionunclassified

Section: E Discussionmentioning

confidence: 99%

Mantle and Its Protective Role of the Slipper-shaped Oyster (Crassostrea Iredalei) in Response to Crude Oil

Abidin

Leksono

Risjani

et al. 2022

International Journal of Biology and Biomedical Engineering

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“…sporozoites infections have been extensively reported in bivalve species, such as cockles (A. granosa), mytilid mussels (Perna viridis and A. arcuatula), and venerid clams (P. undulate) (Tuntiwaranuruk et al, 2004). Nematopsis sp., Tylocephalum sp., digenetic trematodes and ciliates were also reported from C. iredalei in the Philippines (Erazo-Pagador, 2010).…”

Section: Introductionmentioning

confidence: 93%

New Report on The Occurrence of Gregarine Parasites in Wild Species of Macrobrachium rosenbergii from Setiu Lagoon, Terengganu, Malaysia

Zakariah

Daud

Abdullah

et al. 2022

JIPK

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Highlight ResearchThis is the first report of the occurrence of gregarine species in Peninsular Malaysia.The information of these findings will lead to the identification of species using genetic analysis.This information can help to solve the cultured problem of the Macrobrachium rosenbergii industry worldwide. AbstarctStudies on the parasite of prawn are likely to be important due to the commercial value of the prawn. Investigation study about gregarine parasites of M. rosenbergii in Malaysia is still lacking. Objective of this study is to determine the occurrence of gregarine parasites in shrimp, M. rosenbergii from Setiu Lagoon, Terengganu. The study was done specifically to observe the prevalence and the mean intensity of the parasites which include the morphological prevalence and parasitological study. Prevalence of the parasites in this study is 42.4% with 95% Cumulative Index (CI) 25.6% to 59.3% and value of Odd Ratio (OR) is 0.74 (CI = 0.29 to 1.88). Two structures of the gregarine which is gamont and syzygy found in this study are closely related to morphology characteristic of gregarine in the previous report.

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“…A number of surveys of parasites and pathologies of substantial geographic extent have been carried out for selected bivalve species in selected regions (Burton 1961, Otto et al 1979, Karatayev et al 2000, Sv€ ardh & Johannesson 2002, V azquez et al 2006, Darriba et al 2010, Erazo-Pagador 2010, Meyer et al 2010), but few surveys have been both geographically extensive and of multiyear duration. The National Oceanic and Atmospheric Administration Status and Trends Mussel Watch Program conducted a yearly survey of the parasites and pathologies of oysters and mussels from 1995 to 2010 , 2007, Kim et al 2008.…”

Section: Introductionmentioning

confidence: 99%

Temporal Structure and Trends of Parasites and Pathologies in U.S. Oysters and Mussels: 16 Years of Mussel Watch

Powell

Kim

Bushek

2015

Journal of Shellfish Research

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A Parasitological Survey of Slipper-Cupped Oysters (Crassostrea iredalei, Faustino, 1932) in the Philippines

Cited by 11 publications

References 10 publications

Mantle and Its Protective Role of the Slipper-shaped Oyster (Crassostrea Iredalei) in Response to Crude Oil

Mantle and Its Protective Role of the Slipper-shaped Oyster (Crassostrea Iredalei) in Response to Crude Oil

New Report on The Occurrence of Gregarine Parasites in Wild Species of Macrobrachium rosenbergii from Setiu Lagoon, Terengganu, Malaysia

Temporal Structure and Trends of Parasites and Pathologies in U.S. Oysters and Mussels: 16 Years of Mussel Watch

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