Occurrence of Marine Biotoxins and Shellfish Poisoning Events and Their Causative Organisms in Argentine Marine Waters

Krock, Bernd; Ferrario, Martha E.; Akselman, Rut; Montoya, Nora G.

doi:10.5670/oceanog.2018.403

Cited by 18 publications

(17 citation statements)

References 81 publications

(131 reference statements)

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“…Although spirolides have been previously detected in the Argentine Sea (Almandoz et al 2014;Turner and Goya 2015;Fabro et al 2017;Krock et al 2018), in the present study we report for the first time the presence of SPX1 and 20-Me-SPX-G in plankton (phyto-and mesozooplankton) samples from Golfo Nuevo and Golfo San José. However, Alexandrium ostenfeldii, the only known source of spirolides (Cembella et al 2001;Franco et al 2006), was not detected in phytoplankton samples from the present study.…”

Section: Discussioncontrasting

confidence: 54%

“…In the present study, the dinophysistoxin DTX1 was recorded for the first time in mesozooplankton samples from the Argentine Sea. To date, the presence of these phycotoxins had been demonstrated only in phytoplankton and shellfish from the Argentine Sea (Gracia Villalobos et al ; Fabro et al 2018; Krock et al ). Although DTXs were absent in phytoplankton samples from Golfo Nuevo and Golfo San José, the presence of DTX1 in mesozooplankton samples indicates that toxigenic strains of P. lima were present in the phytoplankton and were consumed by the mesozooplanktonic organisms.…”

Section: Discussionmentioning

confidence: 99%

“…In the Argentine Sea, harmful algal blooms occur frequently and have repeated with varying intensities over the years (Gayoso and Fulco 2006;Almandoz et al 2007;Montoya et al 2010;D'Agostino et al 2015D'Agostino et al , 2018Carreto et al 2016). Microalgal toxins associated with 5 different shellfish poisoning syndromes have been reported in the Argentine Sea (reviewed by Krock et al 2018). The North Patagonian Gulfs of Argentina (Golfo Nuevo, Golfo San José, and Golfo San Matías (Figure 1) are some of the most productive areas of the Patagonian Shelf ecosystem (Carreto et al 1989;Acha et al 2004).…”

Section: Introductionmentioning

confidence: 99%

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Occurrence of Toxigenic Microalgal Species and Phycotoxin Accumulation in Mesozooplankton in Northern Patagonian Gulfs, Argentina

D'agostino

Krock

Degrati

et al. 2019

Enviro Toxic and Chemistry

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In the Northern Patagonian gulfs of Argentina (Golfo Nuevo and Golfo San José), blooms of toxigenic microalgae and the detection of their associated phycotoxins are recurrent phenomena. The present study evaluated the transfer of phycotoxins from toxigenic microalgae to mesozooplankton in Golfo Nuevo and Golfo San José throughout an annual cycle (December 2014–2015 and January 2015–2016, respectively). In addition, solid‐phase adsorption toxin tracking (SPATT) samplers were deployed for the first time in these gulfs, to estimate the occurrence of phycotoxins in the seawater between the phytoplankton samplings. Domoic acid was present throughout the annual cycle in SPATT samplers, whereas no paralytic shellfish poisoning toxins were detected. Ten toxigenic species were identified: Alexandrium catenella, Dinophysis acuminata, Dinophysis acuta, Dinophysis tripos, Dinophysis caudata, Prorocentrum lima, Pseudo‐nitzschia australis, Pseudo‐nitzschia calliantha, Pseudo‐nitzschia fraudulenta, and Pseudo‐nitzschia pungens. Lipophilic and hydrophilic toxins were detected in phytoplankton and mesozooplankton from both gulfs. Pseudo‐nitzschia spp. were the toxigenic species most frequent in these gulfs. Consequently, domoic acid was the phycotoxin most abundantly detected and transferred to upper trophic levels. Spirolides were detected in phytoplankton and mesozooplankton for the first time in the study area. Likewise, dinophysistoxins were found in mesozooplankton from both gulfs, and this is the first report of the presence of these phycotoxins in zooplankton from the Argentine Sea. The dominance of calanoid copepods indicates that they were the primary vector of phycotoxins in the pelagic trophic web. Environ Toxicol Chem 2019;38:2209–2223. © 2019 SETAC.

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Section: Discussioncontrasting

confidence: 54%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Occurrence of Toxigenic Microalgal Species and Phycotoxin Accumulation in Mesozooplankton in Northern Patagonian Gulfs, Argentina

D'agostino

Krock

Degrati

et al. 2019

Enviro Toxic and Chemistry

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“…In the Southwest Atlantic, blooms of the dinoflagellate A. catenella have been detected since 1980 along coastal areas between 37°S (Province of Buenos Aires) and 55°S (Beagle Channel) (Carreto et al., 1981, 1998; Esteves et al., 1992; Benavides et al., 1995; Akselman, 1996; Gayoso and Fulco, 2006; Montoya et al., 2010; Krock et al., 2015; Fabro et al., 2017; Krock et al., 2018). In particular, toxigenic blooms of A. catenella are widespread throughout all monitored sites on the coast of the Chubut Province (42–46°S) (Sastre et al., 2018).…”

Section: Discussionmentioning

confidence: 99%

Spatiotemporal distribution of paralytic shellfish poisoning (PSP) toxins in shellfish from Argentine Patagonian coast

Villalobos

Santinelli

Sastre

et al. 2019

Heliyon

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Harmful algal blooms (HABs) have been recorded in the Chubut Province, Argentina, since 1980, mainly associated with the occurrence of paralytic shellfish poisoning (PSP) toxins produced by dinoflagellates of the genus Alexandrium . PSP events in this area impact on fisheries management and are also responsible for severe human intoxications by contaminated shellfish. Within the framework of a HAB monitoring program carried out at several coastal sites along the Chubut Province, we analyzed spatiotemporal patterns of PSP toxicity in shellfish during 2000–2011. The highest frequency of mouse bioassays exceeding the regulatory limit for human consumption was detected in spring and summer, with average values of up to ≈70% and 50%, respectively. By contrast, a lower percentage of positive bioassays (2–8%) or no toxicity at all was usually detected during autumn and winter. The most intense PSP events were usually observed between November and January, with values of up to 4,000 μg STX eq 100 g −1 , and showed a marked interannual variability both in their magnitude and location. In addition, a severe PSP outbreak was recorded during autumn, 2009, at Camarones Bay, with toxicity values of up to 14,000 μg STX eq 100 g −1 . The scallop Aequipecten tehuelchus showed significantly higher toxicity values compared to other shellfish species in SJG and SMG, suggesting a lower detoxification capacity. Our results contribute to the understanding of HABs dynamics on the Argentine Patagonian coast.

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“…Some of the acute diseases caused by toxins from microalgae in the HABs group are paralytic shellfish poisoning (PSP), amnesic shellfish poisoning (ASP), diarrhetic shellfish poisoning (DSP) (Fukuyo et al 2011;Krock et al 2018), and ciguatera fish poisoning (CFP) (Skinner et al 2011). These toxins are hazardous to human health because they attack the nervous system and interfere with respiration and digestion.…”

Section: Introductionmentioning

confidence: 99%

Detection of marine microalgae (phytoplankton) quality to support seafood health: A case study on the west coast of South Sulawesi, Indonesia

et al. 2021

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Abstract. Tambaru R, Burhanuddin AI, Massinai A, Amran MA. 2021. Detection of marine microalgae (phytoplankton) quality to support seafood health: a case study on the west coast of South Sulawesi, Indonesia. Biodiversitas 22: 5179- 5186. The research aimed to detect marine microalgae quality to support seafood health was carried out from January to November 2020 along the west coast of South Sulawesi, Indonesia. Samples were collected from the coastal waters of Pangkep District, Maros District, and the northern part of Makassar City. Phytoplankton cell counts were obtained using the deposition method developed by Uthermol. Phytoplankton cell abundances were calculated through sweeping (census) using a Sedgwick Rafter Cell (SRC). Two-way analysis of variance (ANOVA) was used to compare the distribution of marine microalgae community abundance between observation stations and periods. Based on the types and relative abundance of phytoplankton present, i.e., harmful algal bloom (HAB) forming or not (non-HAB), the results showed the quality of marine microalgae, specifically, phytoplankton was relatively good. Many more non-HAB (94-98%) than HAB (2-6%) marine microalgae were detected. Thus, the phytoplankton flourishing in these waters is mostly suitable as food for other organisms, including fish and shellfish. This also means that if fishers harvest these fish and shellfish, they should be fit and safe for human consumption.

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Occurrence of Marine Biotoxins and Shellfish Poisoning Events and Their Causative Organisms in Argentine Marine Waters

Cited by 18 publications

References 81 publications

Occurrence of Toxigenic Microalgal Species and Phycotoxin Accumulation in Mesozooplankton in Northern Patagonian Gulfs, Argentina

Occurrence of Toxigenic Microalgal Species and Phycotoxin Accumulation in Mesozooplankton in Northern Patagonian Gulfs, Argentina

Spatiotemporal distribution of paralytic shellfish poisoning (PSP) toxins in shellfish from Argentine Patagonian coast

Detection of marine microalgae (phytoplankton) quality to support seafood health: A case study on the west coast of South Sulawesi, Indonesia

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