Relationship between growth of farmed oyster and feed environment in the Harima-nada, Hyogo Prefecture

January 1, 2026NIPPON SUISAN GAKKAISHIOpen Access

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The study aims to understand the characteristics of farmed oyster habitats in nutrient-poor coastal areas.
Conducted from November 2022 to March 2023 in two locations: coastal and offshore areas of Harima-nada.
Monthly measurements of shell size and soft tissue wet weight to assess biomass and obesity.
Analyzed glycogen content and measured chlorophyll a concentrations in both fishing grounds.
Coastal fishing grounds had higher chlorophyll a concentrations, leading to improved obesity levels in oysters.
Increased glycogen levels were observed in oysters from the coastal area compared to the offshore area.
Findings suggest that land-based nutrient loads may enhance productivity in these fishing grounds.

Assesses oyster growth in varying feed environments, indicating potential sustainability factors.

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Takakura et al. (2026) studied this question.

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