Marine Environmental Characteristics of Yeoja Bay, Korea : A Review on a Basis of Previous Studies

Ock, Lee Moon; Kyu, Kim Jong; Kuk, Kim Byeong

doi:10.7846/jkosmee.2020.23.4.233

JKOSMEE

2020

DOI: 10.7846/jkosmee.2020.23.4.233

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Marine Environmental Characteristics of Yeoja Bay, Korea : A Review on a Basis of Previous Studies

Lee Moon Ock¹,

Kim Jong Kyu²,

Kim Byeong Kuk³

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2022

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Cited by 2 publications

References 48 publications

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Dietary Changes in the Ark Clam (Anadara kagoshimensis) Is Associated with Phytoplankton Community Patterns in a Temperate Coastal Embayment

Kang

Kim

et al. 2022

Water

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The monthly phytoplankton communities and dietary items of the filter-feeding ark clam (Anadara kagoshimensis) in cultivation were examined in a shallow temperate coastal embayment of Yeoja Bay in Korea, to identify dietary changes in clams associated with phytoplankton community patterns. A self-organizing map (SOM) algorithm was applied to shape the community structures of phytoplankton. Clam δ13C and δ15N values were determined monthly and compared with those of phytoplankton, microphytobenthos, suspended particulate organic matter (SPOM), sedimentary organic matter (sedimentary OM), and Phragmites australis. Our SOM clustered monthly phytoplankton communities, revealing a seasonal shift in the dominance of large-sized diatoms (sporadically together with dinoflagellates), which were detected almost year-round, to small-sized taxa (chlorophytes, prasinophytes, and prymnesiophytes), which were observed in May–June. The δ13C and δ15N measurements revealed that pelagic and benthic diatoms serve as the main contributors to the clam diets. A reduction in their dietary contribution accompanied a considerable increment in the contribution of Phragmites detritus in association with the dominance of small-sized phytoplankton during the late spring. Our results suggest that the dominance of small-sized phytoplankton during the critical spring period of the clam life cycle may decrease the availability of preferred items (i.e., size-related food quality) and lead to dietary changes in the clams in relation to climate forcing in this warming sea.

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Dietary Changes in the Ark Clam (Anadara kagoshimensis) Is Associated with Phytoplankton Community Patterns in a Temperate Coastal Embayment

Kang

Kim

et al. 2022

Water

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show abstract

Marine Environmental Characteristics of Deukryang Bay, Korea

Lee¹,

Kim²,

Kim³

2022

JKOSMEE

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Marine Environmental Characteristics of Yeoja Bay, Korea : A Review on a Basis of Previous Studies

Cited by 2 publications

References 48 publications

Dietary Changes in the Ark Clam (Anadara kagoshimensis) Is Associated with Phytoplankton Community Patterns in a Temperate Coastal Embayment

Dietary Changes in the Ark Clam (Anadara kagoshimensis) Is Associated with Phytoplankton Community Patterns in a Temperate Coastal Embayment

Marine Environmental Characteristics of Deukryang Bay, Korea

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