Opportunistic Species and Seasonal Variation in Epiphytic Foraminiferal Assemblages in Abalone Farm Nets

Choi, Yang Ho; Jeong, Da Un; Lee, Yeon Gyu; Choi, Jae Ung; Kim, Shin; Lee, Jung Sick

doi:10.2112/jcoastres-d-18-00057.1

Cited by 1 publication

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“…One hypothesis to explain the high relative abundances under the cages could therefore be that specimens were transported by the current from Posidonia oceanica meadows and accumulated under the fish farms. However, high abundances for R. bradyi were also reported in fish farms in Tunisia [37] and in abalone farms in Korea [72]. Furthermore, Rosalina spp.…”

Section: Species Response To Fish Farming Cages: Improving Foram-ambi Original Species List Assignment To Ecological Group the Foram-ambimentioning

confidence: 96%

Distribution Patterns of Benthic Foraminifera in Fish Farming Areas (Corsica, France): Implications for the Implementation of Biotic Indices in Biomonitoring Studies

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Corsican marine aquaculture is one of the highest contributors of fish production in France, which may result in environmental perturbations caused by organic matter (OM) accumulation under fish farms and impacting natural communities. This study aimed to (1) characterise the environmental conditions at two different fish farms, (2) monitor the response of benthic foraminiferal species to this activity, and (3) assess the accuracy of existing foraminiferal biotic indices. In 2017, sea floor sediment was sampled in transects from two Corsican fish farms for living foraminiferal and sedimentary analyses. Four indices were calculated and compared: exp(H′bc), Foram-AMBI, Foram Stress Index and TSI-Med. A significant increase in total organic carbon (TOC) has been shown, mainly below the fish cages. Communities were characterized by a shift from high density, opportunistic and tolerant species under the cages to lower densities and more sensitive species further away. According to their distribution patterns along the TOC gradient, we propose to update the ecological group classification of seven species to improve Foram-AMBI’s accuracy and sensitivity: Triloculina oblonga and Quinqueloculina lamarckiana to Ecological Group (EG) I; Rosalina bradyi to EGIII; and Bolivina dilatata, Bulimina aculeata and Quinqueloculina stalkeri to EGIV. We recommend prioritising the use of TSI-Med and Foram-AMBI with the updated list to assess ecological quality in coastal waters of the Mediterranean Sea.

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Section: Species Response To Fish Farming Cages: Improving Foram-ambi Original Species List Assignment To Ecological Group the Foram-ambimentioning

confidence: 96%

Distribution Patterns of Benthic Foraminifera in Fish Farming Areas (Corsica, France): Implications for the Implementation of Biotic Indices in Biomonitoring Studies

Dubois

Barras

Pavard

et al. 2021

Water

View full text Add to dashboard Cite

show abstract

Opportunistic Species and Seasonal Variation in Epiphytic Foraminiferal Assemblages in Abalone Farm Nets

Cited by 1 publication

References 73 publications

Distribution Patterns of Benthic Foraminifera in Fish Farming Areas (Corsica, France): Implications for the Implementation of Biotic Indices in Biomonitoring Studies

Distribution Patterns of Benthic Foraminifera in Fish Farming Areas (Corsica, France): Implications for the Implementation of Biotic Indices in Biomonitoring Studies

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