Comparison of paralytic shellfish poisoning toxin between carnivorous crabs (Telmessus acutidens and Charybdis japonica) and their prey mussel (Mytilus galloprovincialis) in an inshore food chain

Fujita, Tsuneo; Saito, Ken; Watabe, Shugo; Satomi, Masataka; Yano, Yutaka

doi:10.1016/j.toxicon.2004.03.003

Cited by 28 publications

(14 citation statements)

References 20 publications

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“…The highest toxicity was 20‐fold higher than the regulation limit for bivalves in Japan (4 MU/g). In addition, another edible shore swimming crab, Charybdis japonica (‘Ishigani’) collected in Onahama also had small amounts of PSP toxins in the hepatopancreas 12 . These were the first observations of toxin accumulation in these two crab species.…”

Section: Introductionmentioning

confidence: 83%

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Difference in the level of paralytic shellfish poisoning toxin accumulation between the crabs Telmessus�acutidens and Charybdis�japonica collected in Onahama, Fukushima Prefecture

et al. 2007

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The difference in paralytic shellfish poisoning (PSP) toxin accumulation in the crabs Telmessus acutidens and Charybdis japonica was investigated at Onahama, Fukushima Prefecture, from 2002 to 2005. The level of toxin accumulation in the hepatopancreas of T. acutidens corresponded to that of mussels when examined on a yearly basis. In 2003, some crabs had a high toxicity of approximately 1000 MU, which compares to one-third of the human minimum lethal dose. Therefore T. acutidens should be monitored as a vector species of PSP toxin. The toxin profile of T. acutidens was also investigated. Because an increase in highly toxic species of PSP toxins with a decrease in low toxic species, such as N-sulfocarbamoyl-11-hydroxysulfate toxins, was not clearly observed between consecutive samples, toxin transformation in T. acutidens was considered to have a minimal impact on toxicity. PSP toxins were also detected in several specimens of C. japonica, but the highest toxicity was only 7.4 MU/g in the hepatopancreas. Because C. japonica is widely distributed in the coastal waters of Japan, investigation of toxin accumulation in the crab should be continued, including its investigation in different areas of water from Onahama, where the causative dinoflagellates of PSP occur in different conditions.

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Section: Introductionmentioning

confidence: 83%

“…These were the first observations of toxin accumulation in these two crab species. Further investigation was therefore needed to clarify the possibility of PSP toxin accumulation in these crabs 11,12 …”

Section: Introductionmentioning

confidence: 99%

Difference in the level of paralytic shellfish poisoning toxin accumulation between the crabs Telmessus�acutidens and Charybdis�japonica collected in Onahama, Fukushima Prefecture

et al. 2007

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“…(Wekell et al, 2004)] in the hepatopancreas of the edible shore crab, Telmessus acutidens, after 20 consecutive days of feeding on toxic mussels. Further studies by Oikawa et al (2002Oikawa et al ( , 2004Oikawa et al ( , 2007 have shown that PSP toxins are commonly detected in T. acutidens in the field and can also reach very high concentrations (up to 85.3 MU/g). The fact that these two species achieve similar toxicities in the lab indicates that paddle crabs may also rapidly acquire high levels of PSP toxins in nature during a toxic bloom, at least in the viscera.…”

Section: Discussionmentioning

confidence: 99%

Uptake of paralytic shellfish poisoning and spirolide toxins by paddle crabs (Ovalipes catharus) via a bivalve vector

2009

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“…Oikawa et al [163–164, 183–184] showed that the edible crab Telmessus acutidens both accumulated and retained STXs after consuming contaminated mussels ( Mytilus galloprovincialis ) in Japan. STXs in two shore crab species, T. acutidens and Charybdis japonica , were compared with the toxin in the prey mussel M. galloprovincialis and causative dinoflagellates Alexandrium tamarense , all having been collected at Onahama, Fukushima Prefecture, in the northern part of Japan.…”

Section: Non-traditional Vectors Of Saxitoxins To Human Consumersmentioning

confidence: 99%

Non-Traditional Vectors for Paralytic Shellfish Poisoning

et al. 2008

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Paralytic shellfish poisoning (PSP), due to saxitoxin and related compounds, typically results from the consumption of filter-feeding molluscan shellfish that concentrate toxins from marine dinoflagellates. In addition to these microalgal sources, saxitoxin and related compounds, referred to in this review as STXs, are also produced in freshwater cyanobacteria and have been associated with calcareous red macroalgae. STXs are transferred and bioaccumulate throughout aquatic food webs, and can be vectored to terrestrial biota, including humans. Fisheries closures and human intoxications due to STXs have been documented in several non-traditional (i.e. non-filter-feeding) vectors. These include, but are not limited to, marine gastropods, both carnivorous and grazing, crustacea, and fish that acquire STXs through toxin transfer. Often due to spatial, temporal, or a species disconnection from the primary source of STXs (bloom forming dinoflagellates), monitoring and management of such non-traditional PSP vectors has been challenging. A brief literature review is provided for filter feeding (traditional) and nonfilter feeding (non-traditional) vectors of STXs with specific reference to human effects. We include several case studies pertaining to management actions to prevent PSP, as well as food poisoning incidents from STX(s) accumulation in non-traditional PSP vectors.

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Comparison of paralytic shellfish poisoning toxin between carnivorous crabs (Telmessus acutidens and Charybdis japonica) and their prey mussel (Mytilus galloprovincialis) in an inshore food chain

Cited by 28 publications

References 20 publications

Difference in the level of paralytic shellfish poisoning toxin accumulation between the crabs Telmessus�acutidens and Charybdis�japonica collected in Onahama, Fukushima Prefecture

Difference in the level of paralytic shellfish poisoning toxin accumulation between the crabs Telmessus�acutidens and Charybdis�japonica collected in Onahama, Fukushima Prefecture

Uptake of paralytic shellfish poisoning and spirolide toxins by paddle crabs (Ovalipes catharus) via a bivalve vector

Non-Traditional Vectors for Paralytic Shellfish Poisoning

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