Effect of Age and Tissue Weight on the Cadmium Concentration in Pacific Oysters (Crassostrea Gigas)

Rasmussen, Rosalee S.; Morrissey, Michael T.; Cheney, Dan

doi:10.2983/0730-8000(2007)26[173:eoaatw]2.0.co;2

Cited by 10 publications

(4 citation statements)

References 25 publications

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“…Because cadmium has no established physiological role, such constant rates may result from detoxification processes that occur in the scallop tissues rather than from a specific homeostatic mechanism (Bustamante and Miramand 2005). Similar results were observed in oysters Crassostrea gigas (Rasmussen et al 2007) and blue mussel Mytilus edulis (Cossa et al 1980), wherein tissue weight influenced cadmium concentration.…”

Section: Discussionmentioning

confidence: 55%

A Study on the Distribution and Level of Cadmium in Scallop Bractechlamys vexillum (Reeve 1853) from the Visayan Sea, Philippines

Perelonia

Banicod

Benitez

et al. 2021

TPJF

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Bivalves such as scallop Bractechlamys vexillum are considered an essential resource for livelihood and revenues in the Visayan Sea, central Philippines. To date, there are several reports that the local marine ecosystems are contaminated with heavy metals like cadmium; hence, these species are also susceptible to bioaccumulation of cadmium because they feed mainly by filtering particles from contaminated water. In recent studies, scallops are suggested to be a potential bioindicator for cadmium contamination due to their ability to accumulate and tolerate the metal. This research aims to examine the anatomical distribution of cadmium in B. vexillum and measure the relationship between shell weight and cadmium concentration. The sites for this study include Carles, Iloilo, Madridejos, Cebu, and Cawayan, Masbate. Five organs were analyzed: adductor muscle, digestive gland, gonad, gill, and mantle. The analysis for quantification of cadmium in the different scallop parts was carried out by Inductively Coupled Plasma – Optical Emission Spectrometry (ICP-OES Model ICPE-9820, Shimadzu, Kyoto, Japan). Results showed that cadmium preferentially accumulates in the digestive gland, accounting for 76.39% of the total metal concentration. Moreover, a significant positive correlation (r = 0.798, p < 0.01) between the cadmium content in the whole digestive gland and shell weight were observed. Thus, this tissue tends to have a potential marker of metal contamination in the environment.

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Section: Discussionmentioning

confidence: 55%

A Study on the Distribution and Level of Cadmium in Scallop Bractechlamys vexillum (Reeve 1853) from the Visayan Sea, Philippines

Perelonia

Banicod

Benitez

et al. 2021

TPJF

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“…Based on available data on shell length/age correlation in Pacific oysters, the collected specimens range from 1 to 4 years [35,46,47]. However, defining age classes based on shell length seems to not be very accurate, since the literature data differ for wild and farmed oyster populations [47]. Measurements of R. dubia shells showed that analyzed oysters hosted individuals of different sizes, probably having different ages.…”

Section: Discussionmentioning

confidence: 99%

Shell Infestation of the Farmed Pacific Oyster Magallana gigas by the Endolith Bivalve Rocellaria dubia

Mikac

Tarullo²,

Colangelo

et al. 2021

Diversity

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Oyster shells are substratum for different epibiontic and endobiontic organisms, including pests and parasites. Rocellaria dubia is endolithic and facultative tube-dwelling bivalve, boring in different calcareous substrates, including the shells of bivalves. In 2020, R. dubia was found as endolithic in the shells of the Pacific oyster Magalana gigas, from an oyster farm off the Sacca di Goro lagoon (Emilia-Romagna region, Northern Adriatic Sea, Italy). The purpose of this study was to describe this newly recorded association. Altogether, 136 specimens of R. dubia were found in 15 oysters, photographed under a stereoscope, and their length was measured. Heavily infested oysters hosted tens of R. dubia borers, which were perforating the whole thickness of the oyster valves. The flesh of these oysters was heavily damaged, suggesting parasitic association. R. dubia specimens were categorized into three age classes (0–1, 1–2, and 2–3 years old). M. gigas/R. dubia might be a widespread association, overlooked due to the very scarce research on macrofauna associated with M. gigas. Considering the negative effects of R. dubia endobiosis on oyster fitness, and possible impacts on oyster aquaculture, further research should be conducted in order to elucidate the distribution and ecological characteristics of this parasitic association.

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“…oysters (Kruzynski et al, 2002;Kruzynski, 2004;Rasmussen et al, 2007;Lekhi et al, 2008;Widmeyer and Bendell-Young, 2008). Further motivation came from Health Canada who issued oyster consumption guidelines of 460 g and 60 g per month for adults and children, respectively (Canadian Food Inspection Agency, 2003).…”

Section: Introductionmentioning

confidence: 98%

Sources of dietary cadmium to the Pacific oyster Crassostrea gigas

Christie¹,

Bendell²

2009

Marine Environmental Research

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Effect of Age and Tissue Weight on the Cadmium Concentration in Pacific Oysters (Crassostrea Gigas)

Cited by 10 publications

References 25 publications

A Study on the Distribution and Level of Cadmium in Scallop Bractechlamys vexillum (Reeve 1853) from the Visayan Sea, Philippines

A Study on the Distribution and Level of Cadmium in Scallop Bractechlamys vexillum (Reeve 1853) from the Visayan Sea, Philippines

Shell Infestation of the Farmed Pacific Oyster Magallana gigas by the Endolith Bivalve Rocellaria dubia

Sources of dietary cadmium to the Pacific oyster Crassostrea gigas

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