Effects of Biofouling by Ascidians on Cultured Mussels: Apoptosis, Autophagy, and Antioxidant Defense

Feidantsis, Konstantinos; Papadopoulos, Dimitrios K.; Lattos, Athanasios; Theodorou, John A.; Michaelidis, Basile; Giantsis, Ioannis A.

doi:10.2983/035.042.0202

Cited by 4 publications

(3 citation statements)

References 103 publications

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“…All data were quadrupled by collecting four mussel samples from each depth. In addition, temperature and dissolved oxygen (DO) were measured every month in the field using a Handy Polaris Oxyguard oxygen meter since they represent important abiotic factors affecting ascidian population development [6,7], while sea water samples were sent monthly to the University of Patras for determination of the concentration of Chl-α. Salinity is relatively stable in the study area, ranging between approximately 35 and 36 psu, and hence it was not periodically measured.…”

Section: Field Experiments (Mussel Sock Washing Duration And/or Air E...mentioning

confidence: 99%

“…Ascidians are among the most persistent sources of biofouling in shellfish farming worldwide and can reach very high density or biomass in a relatively short time; for example, Ciona intestinalis and Styela plicata can establish population numbers up to 10 4 fouling individuals per hectare [6][7][8][9][10]. These organisms compete with mussels for the availability of food and oxygen and also for space on the substrate (net) [6,7], sometimes leading to a total loss of the mussel population as they detach and fall to the bottom of the sea [6,7]. The effects of ascidian fouling include increased costs of production up to 50% [11,12] and increased processing, negative effects on the growth rates of the cultured species and decreased quality of the final product [13].…”

Section: Introductionmentioning

confidence: 99%

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Environmentally Friendly and Efficient Methods for Mitigating the Density of Ascidian Fouling in Mediterranean Mussel Farming

Tsotsios,

Papadopoulos,

Alvanou

et al. 2024

Fishes

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Ascidian biofouling generates significant challenges to bivalve aquaculture. Their rapid spread across almost every available surface leads to increased maintenance costs and reduced yields in shellfish farming. In addition, ascidians may introduce pathogens or toxins, further compromising the health and marketability of bivalve stocks and thereby necessitating strict management strategies to manage these impacts. The aim of this study was the evaluation of different management practices for eliminating ascidian fouling and the identification of the best method for Mytilus galloprovincialis (Lamarck, 1819) aquaculture farms. The effects of different anti-fouling treatments as well as their interactive outcomes were examined by conducting two experiments. Various experimental procedures were applied, including the temporally differential washing of mussels, air exposure and immersion in 50 ppt and 70 ppt salinity solutions, as well as the combination of these applications. All treatments reduced the number of ascidian colonies on mussel socks but at varying proportions. Immersing mussel socks in a 70 ppt salinity solution followed by air exposure for 1 day was the most efficient method and led to a 93% eradication.

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Section: Field Experiments (Mussel Sock Washing Duration And/or Air E...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Environmentally Friendly and Efficient Methods for Mitigating the Density of Ascidian Fouling in Mediterranean Mussel Farming

Tsotsios,

Papadopoulos,

Alvanou

et al. 2024

Fishes

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show abstract

“…Furthermore, tunicates are major biofouling organisms that have large economic impacts on many maritime industries (11). Biofouling by marine ascidians also represents a significant challenge for aquaculture, including the induction of oxidative stress in cultured mussels (12). A major challenge regarding the development of antifouling agents is to maximize their selective toxicity for biofouling target species while minimizing detrimental effects of beneficial nontarget species, e.g.…”

Section: Introductionmentioning

confidence: 99%

Proteome-wide 4-hydroxy-2-nonenal signature of oxidative stress in the marine invasive tunicateBotryllus schlosseri

Kültz,

Gardell,

DeTomaso

et al. 2024

Preprint

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The colonial ascidianBoytryllus schlosseriis an invasive marine chordate that thrives under conditions of anthropogenic climate change. We show that theB. schlosseriexpressed proteome contains unusually high levels of proteins that are adducted with 4-hydroxy-2-nonenal (HNE). HNE represents a prominent posttranslational modification resulting from oxidative stress. Although numerous studies have assessed oxidative stress in marine organisms HNE protein modification has not previously been determined in any marine species. LC/MS proteomics was used to identify 1052 HNE adducted proteins inB. schlosserifield and laboratory populations. Adducted amino acid residues were ascertained for 1849 modified sites, of which 1195 had a maximum amino acid localization score. Most HNE modifications were at less reactive lysines (rather than more reactive cysteines). HNE prevelance on most sites was high. These observations suggest thatB. schlosseriexperiences and tolerates high intracellular reactive oxygen species levels, resulting in substantial lipid peroxidation. HNE adducted B. schlosseri proteins show enrichment in mitochondrial, proteostasis, and cytoskeletal functions. Based on these results we propose that redox signaling contributes to regulating energy metabolism, the blastogenic cycle, oxidative burst defenses, and cytoskeleton dynamics duringB. schlosseridevelopment and physiology. A DIA assay library was constructed to quantify HNE adduction at 72 sites across 60 proteins that represent a holistic network of functionally discernable oxidative stress bioindicators. We conclude that the vast amount of HNE protein adduction in this circumpolar tunicate is indicative of high oxidative stress tolerance contributing to its range expansion into diverse environments.

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Performance of mussel Mytilus galloprovincialis under variable environmental conditions and anthropogenic pressure: A survey of two distinct farming sites in the Adriatic Sea

Žurga,

Dubrović,

Kapetanović

et al. 2024

Chemosphere

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Effects of Biofouling by Ascidians on Cultured Mussels: Apoptosis, Autophagy, and Antioxidant Defense

Cited by 4 publications

References 103 publications

Environmentally Friendly and Efficient Methods for Mitigating the Density of Ascidian Fouling in Mediterranean Mussel Farming

Environmentally Friendly and Efficient Methods for Mitigating the Density of Ascidian Fouling in Mediterranean Mussel Farming

Proteome-wide 4-hydroxy-2-nonenal signature of oxidative stress in the marine invasive tunicateBotryllus schlosseri

Performance of mussel Mytilus galloprovincialis under variable environmental conditions and anthropogenic pressure: A survey of two distinct farming sites in the Adriatic Sea

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