Natural variability and potential use of melanomacrophage centres as indicators of pollution in fish species from the NW Mediterranean Sea

Carreras-Colom, Ester; Constenla, María; Dallarés, Sara; Carrassón, Maite

doi:10.1016/j.marpolbul.2022.113441

Cited by 8 publications

(2 citation statements)

References 90 publications

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“…In this study, the increase in density and number of MMCs were found to be positively and significantly correlated to the fish size (LJFL and TW). These results are in agreement with the positive correlation between MMCs and the age previously described in several teleost species [47,66]. Notably, a recent study on the European anchovy demonstrates that long-term exposure to contaminated waters increases the presence and density of MMCs and MMs.…”

Section: Discussionsupporting

confidence: 92%

A Window of Vulnerability: Chronic Environmental Stress Does Not Impair Reproduction in the Swordfish Xiphias gladius

Gioacchini

Filippi

Debernardis

et al. 2023

Animals

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Xiphias gladius is an important fishing resource. The Mediterranean stock is affected by overfishing and is declining. In this light, the aim of this study was to evaluate the cross-talk among metabolism, stress response, immune system and reproduction in immature and mature females, coupling histological and transcriptomic approaches. The transcriptome of livers from 3 immature and 3 mature females was analyzed using the Artificial Intelligence RNA-Seq. For the histological analysis, ovary and liver samples were collected from 50 specimens caught during the reproductive season in the Mediterranean Sea. A total of 750 genes were differentially expressed between the livers. The gene ontologtabey analysis showed 91 upregulated and 161 downregulated biological process GO terms. Instead, the KEGG enrichment analysis revealed 15 enriched pathways. Furthermore, the binding occurring between estrogen receptors and aryl hydrocarbon receptor nuclear translocator, upregulated in mature females, could be liable for the inhibition of detoxification pathway. Indeed, at the histological level, mature females showed a higher density and number of melanomacrophage centers, biomarkers of stress. The present findings reveal the cross-talk among response to environmental stressors, metabolism and reproduction, highlighting that mature females invest a lot of energy in reproduction instead of immune response and detoxification.

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Section: Discussionsupporting

confidence: 92%

A Window of Vulnerability: Chronic Environmental Stress Does Not Impair Reproduction in the Swordfish Xiphias gladius

Gioacchini

Filippi

Debernardis

et al. 2023

Animals

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“…The tissues were preserved in 10% neutral buffered formalin, subjected to standard histological procedures and stained with haematoxylin and eosin. Melanomacrophages (MM) in the liver parenchyma were particularly studied, taking into account their potential role in immune functions (Carreras‐Colom et al, 2022; Steinel & Bolnick, 2017). Morphometric analysis involved 10 random high‐power fields (HPF = 24.000 μm2, 400X) of the liver parenchyma.…”

Section: Methodsmentioning

confidence: 99%

Exploring the elusive deep‐sea sharpnose sevengill shark (Heptranchias perlo) in the Adriatic Sea: Novel records, health assessments and conservation implications

Gajić

2024

Aquatic Conservation

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The sharpnose sevengill shark (Heptranchias perlo) is a rare and poorly understood deep‐sea species, with only a few records in the Adriatic Sea over the last two centuries and a significant gap in sightings. Throughout 2023, three new records are documented in the southernmost Adriatic Sea, found at depths ranging from 391 to 452 m off Vlorë. This study marks the first comprehensive health examination of a deep‐sea shark, investigating potential trauma and injuries resulting from trawling. It encompasses pathological and histopathological examinations, supplemented by magnetic resonance imaging (MRI). The research highlights alarming post‐capture mortality rates in this data deficient species, discusses further conservation implications, and proposes protective measures for the species. Beyond addressing critical knowledge gaps, this study advocates for collaborative efforts with local fishermen to establish long‐term monitoring and obtain data on the frequency and abundance of elusive species.

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Visible Implant Elastomers in gilthead seabream (Sparus aurata L.) for experimental research: Preferred injection sites to optimize tag retention and minimize histological effects

et al. 2023

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Natural variability and potential use of melanomacrophage centres as indicators of pollution in fish species from the NW Mediterranean Sea

Cited by 8 publications

References 90 publications

A Window of Vulnerability: Chronic Environmental Stress Does Not Impair Reproduction in the Swordfish Xiphias gladius

A Window of Vulnerability: Chronic Environmental Stress Does Not Impair Reproduction in the Swordfish Xiphias gladius

Exploring the elusive deep‐sea sharpnose sevengill shark (Heptranchias perlo) in the Adriatic Sea: Novel records, health assessments and conservation implications

Visible Implant Elastomers in gilthead seabream (Sparus aurata L.) for experimental research: Preferred injection sites to optimize tag retention and minimize histological effects

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