Comparative effects of the toxic dinoflagellate Karenia brevis on clearance rates in juveniles of four bivalve molluscs from Florida, USA

Leverone, Jay R.; Shumway, Sandra E.; Blake, Norman J.

doi:10.1016/j.toxicon.2006.11.003

Cited by 60 publications

(34 citation statements)

References 23 publications

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“…This contrasts with lethal effects reported for bivalve larvae exposed to other harmful algal bloom (HAB) species such as Karenia brevis, which is prone to the release of dissolved brevetoxins via cell lysis (Leverone et al 2007). The present study thus concludes that natural selection for resistance during PSP outbreaks is not expected to operate during M. arenaria's planktotrophic period of larval development.…”

Section: Discussionmentioning

confidence: 87%

Evidence of selection for resistance to paralytic shellfish toxins during the early life history of soft‐shell clam, Mya arenaria, populations

Bricelj

MacQuarrie

Doane

et al. 2010

Limnology & Oceanography

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This study identifies early, postmetamorphic soft-shell clams, Mya arenaria, as the life-history stage most susceptible to effects of blooms of paralytic shellfish poisoning (PSP) toxin-producing Alexandrium spp. Laboratory experiments used progeny from predominantly susceptible (naïve) or resistant (annually exposed) NW Atlantic populations. Growth and survival of toxified veliger larvae did not differ from those fed nontoxic algae. In contrast, postlarvae (4-12-mm shell length) from both populations exposed to a highly toxic Alexandrium tamarense isolate (, 100 cells mL 21 , 64-69 pg saxitoxin equivalents [STXeq] cell 21 ) suffered burrowing incapacitation, toxin accumulation, and mortalities within 1 week of toxin exposure. These effects were greater and occurred sooner in the naïve population. Short-term toxification in the laboratory caused a significant shift in the genotypic composition of this population, determined with a molecular marker for sodium-channel resistance. Clams with the sensitive genotype were selectively eliminated relative to resistant or heterozygote clams. Ingestion of toxic cells (too large for larval capture) is thus required to elicit toxic effects. Exposure to mixed, toxic, and nontoxic algal suspensions demonstrated that adverse effects to fitness (survival and growth) were dose-dependent, occurring only at $ 50 cells mL 21 of the isolate used (PR18b). Paralysis and thus increased predatory risk occurred even at 10 cells mL 21 . Postlarvae , 12 mm, which can co-occur with red tides throughout the Atlantic range of M. arenaria, were more susceptible to PSP than large (. 30 mm) juveniles. Natural selection for resistance in Atlantic populations will thus vary latitudinally with the timing, duration, and intensity of toxic blooms.

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Section: Discussionmentioning

confidence: 87%

Evidence of selection for resistance to paralytic shellfish toxins during the early life history of soft‐shell clam, Mya arenaria, populations

Bricelj

MacQuarrie

Doane

et al. 2010

Limnology & Oceanography

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“…Green mussels naturally occur in the Indo-Pacific (Siddall, 1980) and could be more sensitive to A. monilatum because they were only recently introduced to coastal U.S. waters (Benson et al, 2001;Ingrao et al, 2001). It is possible that the green mussel is especially sensitive to exposure to this novel algal toxin; moreover, large mortalities of this species have also been noted during local blooms of another toxic dinoflagellate, K. Brevis, in Florida coastal waters (Leverone et al, 2007).…”

Section: Impact Of a Monilatum On Shellfish Survivalmentioning

confidence: 99%

Effects of the toxic dinoflagellate Alexandrium monilatum on survival, grazing and behavioral response of three ecologically important bivalve molluscs

et al. 2010

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“…While P. viridis experiences harmful algal blooms in their native range (Gacutan et al, 1984(Gacutan et al, , 1985Choi et al, 2003;Li et al, 2005;Montojo et al, 2012), exposure to a new toxin may cause reduced physiological function and could cause the widespread mortality observed in southwest Florida. Leverone et al (2007) observed decreased clearance rates in juvenile P. viridis during short term exposure to K. brevis indicating reduced feeding, which may turn lethal if conditions persist. Baker et al (2012) documented a population-wide mortality event in Tampa Bay following a red tide bloom from which green mussel populations never fully recovered and Gacutan et al (1984) reported >90% P. viridis mortality following a red tide event caused by P. bahamense in the Philippines.…”

Section: Speciesmentioning

confidence: 89%

Uptake and elimination of brevetoxin in the invasive green mussel, Perna viridis, during natural Karenia brevis blooms in southwest Florida

McFarland

Jean

Soudant

et al. 2015

Toxicon

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Perna viridis is a recently introduced species to US coastal waters and have vigorously spread throughout the southeastern seaboard since their invasion. Little information regarding their response to local environmental factors has been reported including responses to the local HAB species, Karenia brevis. This study monitored the tissue toxin concentration of brevetoxins in P. viridis from existing populations throughout two consecutive natural K. brevis blooms. The results showed P. viridis to rapidly accumulate PbTx upon exposure to the bloom, far exceeding the peak tissue concentrations of oysters, Crassostrea virginica, sampled during the same period, 57,653 ± 15,937 and 33,462 ± 10,391 ng g(-1) PbTx-3 equivalent, respectively. Further, P. viridis retained high PbTx concentrations in their tissues post bloom remaining above the regulatory limit for human consumption for 4-5 months, significantly longer than the depuration time of 2-8 weeks for native oyster and clam species. In the second year, the bloom persisted at high cell concentrations resulting in prolonged exposure and higher PbTx tissue concentrations indicating increased bioaccumulation in green mussels. While this species is not currently harvested for human consumption, the threat for post bloom trophic transfer could pose negative impacts on other important fisheries and higher food web implications.

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Comparative effects of the toxic dinoflagellate Karenia brevis on clearance rates in juveniles of four bivalve molluscs from Florida, USA

Cited by 60 publications

References 23 publications

Evidence of selection for resistance to paralytic shellfish toxins during the early life history of soft‐shell clam, Mya arenaria, populations

Evidence of selection for resistance to paralytic shellfish toxins during the early life history of soft‐shell clam, Mya arenaria, populations

Effects of the toxic dinoflagellate Alexandrium monilatum on survival, grazing and behavioral response of three ecologically important bivalve molluscs

Uptake and elimination of brevetoxin in the invasive green mussel, Perna viridis, during natural Karenia brevis blooms in southwest Florida

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