Early chemical and ecotoxicological responses of the Varano lagoon (SE Italy) to a flood event

Fabbrocini, Adele; Cassin, Daniele; Santucci, Angela; Scirocco, Tommaso; Specchiulli, Antonietta; D’Adamo, Raffaele

doi:10.1016/j.ecoenv.2017.06.025

Cited by 12 publications

(4 citation statements)

References 53 publications

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“…The specific growth rate (SGR) was found to be inversely correlated with salinity at the LA site, suggesting that the oysters grew faster under more freshwater input into the lagoon. Indeed, the highest SGR value was found in December 2014 after flood events occurred in September 2014 (Fabbrocini et al , 2017) and in the late winter-spring period (Figure 3). Moreover, SGR increased as TSM decreased.…”

Section: Discussionmentioning

confidence: 95%

Quality aspects of Crassostrea gigas (Thunberg, 1793) reared in the Varano Lagoon (southern Italy) in relation to marketability

et al. 2017

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Shellfish culture, based on ecological and market assessment, is considered a driving force for socio-economic change in ecologically complex coastal systems such as lagoons throughout the Mediterranean area. To diversify fish production, the Pacific oyster Crassostrea gigas was cultured at commercial farms in the Varano Lagoon (SE Italy). The aims of this study were to evaluate through four condition indices (CI, CICG, CIE and AFNOR index), the Polydora index (PI), lipid content, quality and market aspects of oysters reared at two different sites (FO and LA) of the Varano Lagoon, which are characterized by different hydrodynamic conditions. The results of this study highlighted the potential economic benefits associated with sustainable aquaculture development in the Varano Lagoon, proving that the area surrounding the LA site was more suitable for oyster culture, reaching commercial size (60 mm) in a shorter time (6–8 months). Higher growth performance of oysters was observed in the spring, when the nutrient availability positively affected the feeding response of suspension feeders. The opposite was found in winter and in summer, when the decrease in growth could be due to the reduction of nutrient and to the increase of salinity, TSM and ISM. The presence of the mud blister worm (Polydora sp.) during rearing could be a real problem, as it damages oyster market value and threatens serious financial loss to the local farmers.

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Section: Discussionmentioning

confidence: 95%

Quality aspects of Crassostrea gigas (Thunberg, 1793) reared in the Varano Lagoon (southern Italy) in relation to marketability

et al. 2017

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“…The results show that the level of the lagoons will also rise, as well as there being an increase in temperatures and salinity (especially in those that are less open to the sea) and, therefore, there will be a change in species [70] and a disappearance of lagoons that lose the coastline. The changes that lagoons undergo due to extreme events, such as floods [71,72] or pollution episodes, are also important [73], and in many cases lead to the implementation of restoration measures [74] in order to preserve, in the best possible condition, these places of ephemeral life in geological time.…”

Section: Discussionmentioning

confidence: 99%

Mediterranean Coastal Lagoons Review: Sites to Visit before Disappearance

Soria

Pérez-González

Sòria‐Perpinyà

2022

JMSE

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Coastal lagoons are an established priority habitat in the European environment because of the biological communities that inhabit them. Their origin is related to the transport of sediments from a nearby river or the movement of sands by the marine currents that produce the closure of a gulf. Therefore, they are recent geological formations, which also disappear quickly if environmental conditions change. The 37 coastal lagoons with a surface area greater than 10 km2 located in the Mediterranean basin have been identified. Fishing has been the traditional use of these lagoons, in addition to their use as a navigation harbor when they are open to the sea. Pollution, quality problems and their consequences are the most studied topics in recent publications. Sentinel-2 images taken in the summer of 2020 have been used to study water transparency, suspended matter and chlorophyll a concentration. The result was that only six of them are in good ecological condition, but most of them are eutrophic due to the impacts on their environment and the inflow of poor quality water. The cultural values of these lagoons must also be protected and preserved.

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“…The Varano lagoon represents the largest brackish system in southern Italy; it has a trapezoidal shape and covers an area of 65 km 2 , with a perimeter of 33 km and an average depth of 4 m ( Figure 1 ). The lagoon is connected to the sea on the western and eastern sides through two artificial tidal channels, Capoiale and Varano, respectively (Fabbrocini et al , 2017 ). The lagoon receives several freshwater inputs from underground springs and wastewa-ter mainly from agricultural activities.…”

Section: Methodsmentioning

confidence: 99%

“…These sites contain numerous priority habitats such as dune sclerophyllous scrubs and juniper dunes, pine forests, and Mediterranean salt steppes (Natura 2000, Italian Ministry of Environment and Energy Security). These ecosystems provide a significant income source for the local economy through fishing, tourism, and aquaculture (Fabbrocini et al , 2017 ; Caroppo et al , 2018 ). Shiga toxin-producing Escherichia coli (STEC) are known to cause severe illnesses such as hemorrhagic colitis and hemolytic uremic syndrome (HUS) infections, thus representing a public health issue.…”

Section: Introductionmentioning

confidence: 99%

One-year monitoring of potentially pathogenic microorganisms in the waters and sediments of the Lesina and Varano lagoons (South-Est Italy)

Basanisi,

Nobili,

La Bella

et al. 2024

Ital J Food Safety

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In this study, two Mediterranean coastal lagoons (Lesina and Varano) of Southern Italy, located in the north of the Apulia region, were investigated for the presence of Shiga toxin Escherichia coli (STEC) and potentially enteropathogenic Vibrio species in parallel with norovirus (NoV), hepatitis A virus (HAV), hepatitis E virus (HEV), and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). This study aimed to evaluate the presence of potentially pathogenic bacteria and viruses in the water and sediments of these ecosystems. From March 2022 to February 2023, a total of 98 samples were collected: 49 water samples and 49 sediment samples. STEC strains were isolated in three samples (3.1%), of which one (2%) was water (stx1 and stx2 positive) and two (4.1%) were sediment (both stx2 positive) samples. Vibrio spp. were detected in twenty samples (20.4%), of which nine were water (18.4%) and eleven were sediment (22.4%) samples. The species detected included V. parahaemolyticus, V. cholerae, and V. vulnificus. NoV was detected in 25 (25.5%) samples, while none of the water or sediment samples were positive for HAV, HEV, and SARS-CoV-2. The results of this study provide an overview of the presence of potentially pathogenic microorganisms in areas influenced by anthropogenic pressure. Monitoring the circulation of these pathogens could be useful to evaluate the water flowing into the lagoons, in particular discharge waters (i.e., urban, agricultural, and livestock runoff), considering the presence of fish and shellfish farms in these sites.

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Early chemical and ecotoxicological responses of the Varano lagoon (SE Italy) to a flood event

Cited by 12 publications

References 53 publications

Quality aspects of Crassostrea gigas (Thunberg, 1793) reared in the Varano Lagoon (southern Italy) in relation to marketability

Quality aspects of Crassostrea gigas (Thunberg, 1793) reared in the Varano Lagoon (southern Italy) in relation to marketability

Mediterranean Coastal Lagoons Review: Sites to Visit before Disappearance

One-year monitoring of potentially pathogenic microorganisms in the waters and sediments of the Lesina and Varano lagoons (South-Est Italy)

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