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Recruitment of the mussel Mytella strigata in artificial collectors on the Amazon Macrotidal Mangrove Coast

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Abstract

This study assessed the efficacy of artificial collectors in recruiting Mytella strigata along the Amazon Macrotidal Mangrove Coast. The experiment involved three treatments (PVC plate, PET, and polyethylene screen), each repeated thrice. The study was conducted over 315 days, during which settlement density, bivalve biometry within the collectors, and environmental variables, such as temperature (°C), salinity (g.kg-1), chlorophyll-a (mg.m-3), particulate organic matter (POM), particulate inorganic matter (PIM) (mg.L-1), water transparency (determined using a Secchi disc), and rainfall data (mm), were assessed at 45-day intervals. The recruitment of M. strigata was observed predominantly during the rainy season. Both mussel shell size and average settlement density significantly varied (p < 0.05) based on the type of collector, collection period, and their interaction. Polyethylene mesh collectors demonstrated a higher settlement density compared to PET and PVC substrates (p < 0.05), but mussel shell size was lower in this treatment compared to the shell size of juveniles in PVC and PET collectors. Among the collectors, PVC ones proved more effective for collecting M. strigata, considering the quantity of fixed juveniles and the size of the individuals. Regarding the region’s environmental conditions, recommendations are that producers place collectors in the water from January, with juvenile recruitment occurring February‒June.

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All data generated or analyzed during this study are included in this published article.

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Funding

This project was funded by Instituto Federal de Educação, Ciência e Tecnologia do Maranhão – IFMA (Grant: 246/2022, 74/2023) and Fundação de Amparo à Pesquisa e ao Desenvolvimento Científico e Tecnológico do Estado do Maranhão – FAPEMA (Grant: BIC-04519/17).

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All authors were equal contributors in writing this review article. All of them read and approved the final manuscript.

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Correspondence to Izabel Cristina da Silva Almeida Funo.

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The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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Handling Editor: Gavin Burnell

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Highlights

• PVC, PET, PE collectors recruit M. strigata in Amazon's Macrotidal Mangrove Coast.

• PE collectors produce higher recruitment but slower shell size; PVC and PET produced larger sizes.

• Density, total weight, and shell height correlate with MPI, MOP, and chlorophyll-a.

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Monteles, J.S., de Jesus, P.P., de Miranda Gomes, C.H.A. et al. Recruitment of the mussel Mytella strigata in artificial collectors on the Amazon Macrotidal Mangrove Coast. Aquacult Int (2023). https://doi.org/10.1007/s10499-023-01354-7

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  • DOI: https://doi.org/10.1007/s10499-023-01354-7

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