Toxic marine microalgae and noxious blooms in the Mediterranean Sea: A contribution to the Global HAB Status Report

Zingone, Adriana; Escalera, Laura; Aligizaki, Katerina; Fernández-Tejedor, Margarita; Ismael, Amany A.; Montresor, Marina; Mozetič, Patricija; Taş, Seyfettin; Totti, Cecilia

doi:10.1016/j.hal.2020.101843

Cited by 99 publications

(76 citation statements)

References 149 publications

(141 reference statements)

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“…Aquacultured finfish mortalities caused by the taxonomically unrelated microalgal genera Chattonella, Pseudochattonella, Heterosigma, Karenia, Karlodinium, Margalefidinium (Cochlodinium) and Prymnesium/ Chrysochromulina globally account for much greater economic damage than HABs contaminating seafood 39 . While most shellfish toxins have now been well characterised and are effectively monitored and regulated, finfish held captive in intensive aquaculture operations continue to be vulnerable to HABs (USD71M loss in Japan in 1972, USD70M in Korea in 1995, USD290M in China in 2012, USD100M in Norway in 2019 [19][20][21][22][23][24][25][26][27][28][29][30][31][32] ), even though the causative ichthyotoxins usually are of no human health significance. The 2016 Chilean salmon mortality that caused a record USD800M loss led to major social unrest 40 .…”

Section: Resultsmentioning

confidence: 99%

“…Each region was assigned a regional editorial team tasked with collating information on HAB species occurrences and impacts, with the data and interpretations published in a special issue of the journal Harmful Algae (vol. 102, February 2021) [19][20][21][22][23][24][25][26][27][28][29][30] . As more sampling could lead to more observations of HABs, we estimated sampling effort using OBIS, the most comprehensive dataset on marine species records, as a proxy for sampling effort.…”

Section: Methodsmentioning

confidence: 99%

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Perceived global increase in algal blooms is attributable to intensified monitoring and emerging bloom impacts

Hallegraeff

Anderson

Belin

et al. 2021

Commun Earth Environ

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252

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Global trends in the occurrence, toxicity and risk posed by harmful algal blooms to natural systems, human health and coastal economies are poorly constrained, but are widely thought to be increasing due to climate change and nutrient pollution. Here, we conduct a statistical analysis on a global dataset extracted from the Harmful Algae Event Database and Ocean Biodiversity Information System for the period 1985–2018 to investigate temporal trends in the frequency and distribution of marine harmful algal blooms. We find no uniform global trend in the number of harmful algal events and their distribution over time, once data were adjusted for regional variations in monitoring effort. Varying and contrasting regional trends were driven by differences in bloom species, type and emergent impacts. Our findings suggest that intensified monitoring efforts associated with increased aquaculture production are responsible for the perceived increase in harmful algae events and that there is no empirical support for broad statements regarding increasing global trends. Instead, trends need to be considered regionally and at the species level.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Perceived global increase in algal blooms is attributable to intensified monitoring and emerging bloom impacts

Hallegraeff

Anderson

Belin

et al. 2021

Commun Earth Environ

Self Cite

252

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“…Although the presence of 15 potentially toxic Pseudo-nitzschia species were recorded in the Mediterranean Sea (ZINGONE et al, 2020), DA production was only confirmed for 7 species. The only two species from the Adriatic Sea confirmed to produce DA are P. multistriata (PIS-TOCCHI et al, 2012) and P. delicatissima (PENNA et al, 2013).…”

Section: Resultsmentioning

confidence: 94%

Prvi nalaz proizvodnje domoične kiseline u kulturama vrste Pseudo-nitzschia calliantha iz srednjeg Jadrana

Arapov

Ujević

Straka

et al. 2020

Acta Adriat. (Online)

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In this study, three isolates of the potentially toxic diatom genus Pseudo-nitzschia were analysed for morphological and toxicological features. Cultures of Pseudo-nitzschia were established from seawater samples collected from the southern part of the Velebit Channel (central Adriatic Sea) during February 2019. All culture isolates were identified by scanning electron microscopy (SEM) as Pseudo-nitzschia calliantha. Domoic acid (DA) production was confirmed in all isolates analysed. The highest concentrations of cellular DA were found in early culture stages, with the lowest cell abundance, for all P. calliantha isolates. This study is the first to report DA production by P.calliantha isolated from the Adriatic Sea.

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“…The presence of harmful marine dinoflagellate cysts in marine sediments has been documented worldwide (Anderson et al, 2005;Fahnenstiel et al, 2009;Matsuoka et al, 2003;Pitcher and Joyce, 2009). In addition, the dinoflagellate cysts can be very toxic (up to 10 times more toxic than vegetative cells), it could be source of poison to organisms (Zingone et al, 2020).…”

Section: Discussionmentioning

confidence: 99%

Species Assemblages and Distribution of Dinoflagellate Cysts from three Estuaries Sediment’s of Makassar Strait, Eastern Indonesia

Rukminasari¹,

Tahir²

2021

OnLine Journal of Biological Sciences

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Makassar Strait encompasses high fisheries resources and high biodiversity and primary productivity. Algae blooms often occur in these areas, but there is a lack of studies that have been carried out on HABs in these locations specifically determining the collection and abundance of dinocyst. The study aimed to determine species assemblages of dinoflagellate cysts from three estuaries of Makassar Strait. Sampling was conducted at three locations, i.e., Jeneberang, Maros and Pangkep Estuaries during July 2020. Each location of sampling consisted of 4 stations and 3 substations as a sampling replication. Variables that were measured in this study were dinoflagellate cysts abundance species assemblages and distribution. Results showed that there was no clear group of dinoflagellate cysts assemblages between locations, however dinoflagellate cyst assemblages from Jeneberang Estuary was significantly grouped. We recorded 48 dinoflagellate cysts species that belonged to 5 families, namely Goniodomaceae, Gonyaulacaceae, Gymnodiniacea, Peridiniaceae and Protoperidiniaceae. The dominant species of dinoflagellate cysts from Jeneberang Estuary was Scrippsiella crystallina, meanwhile the dominant dinoflagellate cyst from Maros and Pangkep Estuary was Gonyaulax verior and Pentapharsodinium tyrrhenicum, respectively. Scrippsiella trifida was a dinoflagellate cysts species was contributed to the dissimilarity of cyst assemblages between locations. We also found potential five toxic dinoflagellate cyst species. In conclusion, the dinoflagellate cysts species composition, diversity, species richness and cyst abundance was not significant difference between stations of all locations. The abundance of dinoflagellate cysts was significantly correlated by sediment grain size. All sampling sites has a potentially occurred of HABs due to the five potential cysts toxic and harmful species discovered.

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Toxic marine microalgae and noxious blooms in the Mediterranean Sea: A contribution to the Global HAB Status Report

Cited by 99 publications

References 149 publications

Perceived global increase in algal blooms is attributable to intensified monitoring and emerging bloom impacts

Perceived global increase in algal blooms is attributable to intensified monitoring and emerging bloom impacts

Prvi nalaz proizvodnje domoične kiseline u kulturama vrste Pseudo-nitzschia calliantha iz srednjeg Jadrana

Species Assemblages and Distribution of Dinoflagellate Cysts from three Estuaries Sediment’s of Makassar Strait, Eastern Indonesia

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