Environmental Protection Issues

Vespremeanu, Emil; Golumbeanu, Mariana

doi:10.1007/978-3-319-70855-3_8

Cited by 2 publications

(4 citation statements)

References 2 publications

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“…Fish species have been reduced in number: from 26 species of commercial interest, only 5 species are present these days. In addition, an alien species, Mnemiopsis leidyi, has significantly affected the marine ecosystem (Vespremeanu and Golumbeanu 2018). The eutrophic areas in the Black Sea are located in the Azov Sea, the north-western part of the basin as well as the estuaries of Danube and Dnieper rivers.…”

Section: The Black Sea 431 Physiography and Environmental Pressuresmentioning

confidence: 99%

“…Eutrophic trends in the Black Sea were observed from the early '60s (Bakan and Buyukgungor, 2000). More information on the environmental status and eutrophication of the Black Sea has been provided by Vespremeanu and Golumbeanu, (2018). Hypoxic water masses rich in organic matter trigger and maintain frequent algal blooms that are fairly often dominated by toxic algal species.…”

Section: The Black Sea 431 Physiography and Environmental Pressuresmentioning

confidence: 99%

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Toxic phytoplankton in eutrophic regional seas: an overview

2023

Global NEST: The International Journal

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<p>Toxic algal blooms have become a major environmental problem over the last few decades because of their impact on fisheries, leisure activities, national income and human health. It is known that Harmful Algal Blooms (HABs) can occur naturally but the frequency of occurrence as well as their geographical distribution are alarming. HABs, beyond the scientific interest, have been an issue of concern for policy makers due to the high cost for implementing management practices. Unlike other marine environmental problems, the causes of HAB formation are not known so far with certainty and a high degree of uncertainty remains, regarding possible triggering mechanisms. Various factors, apart from nutrient concentrations, seem to be connected with this phenomenon: abundance, presence and absence of phytoplankton species, presence of grazers, weather conditions, seawater temperature and water mass circulation patterns, have already been reported in the scientific literature as potential factors. However, there are strong indications that eutrophic conditions play a paramount role in HABs formation. Machine learning methods, applied over the last few years to predict HAB’s occurrences, have also confirmed the role of nutrients. In the present work, toxic algal blooms in regional seas characterized by eutrophic conditions that is the Mediterranean Sea, the Black Sea, the Baltic Sea, the North Sea, Wider Caribbean Region and the South China Sea are reviewed. Relevant issues including the drivers of eutrophication triggering HAB’s events as well as effects on ecosystem services and socio-economic consequences are also considered.</p>

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Section: The Black Sea 431 Physiography and Environmental Pressuresmentioning

confidence: 99%

Section: The Black Sea 431 Physiography and Environmental Pressuresmentioning

confidence: 99%

Toxic phytoplankton in eutrophic regional seas: an overview

2023

Global NEST: The International Journal

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“…The PAH that is the most carcinogenic to humans is Benzo[a]pyrene [38]. Therefore, the importance of monitoring the marine environment, including the commercial species, has been demonstrated to show the connection between their contamination and their effects at various levels to biological organization [39,40] and human health [29]. The Black Sea has six riparian countries-Bulgaria, Georgia, Romania, Russia, Turkey, and Ukraine, thus uniting two continents.…”

Section: Introductionmentioning

confidence: 99%

“…It is a semi-enclosed sea, communication with neighboring seas being achieved through straits. Thus, the Kerch Strait connects with the Sea of Azov through the Bosphorus Strait, the Black Sea communicates with the Marmara Sea, and further through the Dardanelles Strait, the connection is made with the Aegean Sea, followed by the Mediterranean Sea [39,40].…”

Section: Introductionmentioning

confidence: 99%

Screening for Organic Pollutants in the Black Sea Turbot (Scophthalmus maeoticus)

Danilov

Dediu

Damir

et al. 2023

Fishes

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The health of aquatic organisms can be affected due to anthropogenic activities and limited actions to reduce the pollution of the Black Sea. The accumulation of organic pollutants (OPs) in the aquatic environment occurs in water, sediment, and then biota. The turbot (Scophthalmus maeoticus) is a benthic fish of commercial interest scarcely studied in the Black Sea region, and none of the studies researched OP concentrations in its main tissues. In this paper, polycyclic aromatic hydrocarbons (PAHs) and POPs, organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) were determined in water, sediment, and turbot muscles, gills, gonads, and livers, to research their accumulation level. The determinations were made with gas chromatography on turbots sampled in 2021 from the Romanian Black Sea waters. OCPs—p,p’DDT and its metabolites p,p’DDE, p,p’DDD—are dominant in the turbot tissues. From PAHs, benzo(g,h, i)perylene was the dominant compound, while for PCBs it was PCB 52. The OPs’ presence in the wild turbot is due to river input, dredging and coastal rehabilitation works, industrial activities and contaminated food and poses a risk to human health due to the exceeding maximum allowable concentration for human consumption in Romania and the European Union.

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Environmental Protection Issues

Cited by 2 publications

References 2 publications

Toxic phytoplankton in eutrophic regional seas: an overview

Toxic phytoplankton in eutrophic regional seas: an overview

Screening for Organic Pollutants in the Black Sea Turbot (Scophthalmus maeoticus)

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