The copepod Calanus finmarchicus: A potential vector for trophic transfer of the marine algal biotoxin, domoic acid

Leandro, Luis F.; Teegarden, Gregory J.; Roth, Patricia B.; Wang, Zhihong; Doucette, Gregory J.

doi:10.1016/j.jembe.2009.11.002

Cited by 39 publications

(29 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We cannot totally rule out the possibility that the toxicity of P. seriata in direct contact with the copepods increased because of selective grazing of the copepods on less toxic P. seriata cells. However, we find it unlikely because C. finmarchicus is not known to discriminate between toxic and non-toxic Pseudonitzschia species (Leandro et al, 2010). Moreover, there was a large difference in toxicity between the P. seriata cells in direct contact with the copepods and the control.…”

Section: Discussionmentioning

confidence: 76%

“…The hypothesis that DA causes physiological incapacitation in copepods does not conflict with findings showing that copepods do not select against toxic Pseudo-nitzschia species, even when nontoxic alternative food is offered (Maneiro et al, 2005;Olson et al, 2006;Leandro et al, 2010). The reason is that the negative effects of DA on grazers are expected to occur only if DA intake by the grazers is high enough, which may not have been the case in the studies by Maneiro et al (2005), Olson et al (2006) and Leandro et al (2010), or that the effects of possible physiological incapacitation by DA are left unnoticed. DA may nevertheless have adverse effects on the fecundity of the grazers, which may lead to subsequent reduced grazing pressure.…”

Section: Discussionmentioning

confidence: 79%

“…In most grazing studies on toxic Pseudo-nitzschia the copepods have accumulated DA, but no apparent adverse effects on grazers, e.g. reduced grazing, were detected (Lincoln et al, 2001;Tester et al, 2001;Maneiro et al, 2005;Leandro et al, 2010). Hence, the potential role of DA as a grazing deterrent has not been supported.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Induction of domoic acid production in the toxic diatom Pseudo-nitzschia seriata by calanoid copepods

et al. 2015

View full text Add to dashboard Cite

a b s t r a c tThe toxic diatom Pseudo-nitzschia seriata was exposed directly and indirectly (separated by a membrane) to copepods, Calanus hyperboreus and C. finmarchicus, to evaluate the effects of the copepods on domoic acid production and chain formation in P. seriata. The toxicity of P. seriata increased in the presence of the copepods. This response was chemically mediated without physical contact between the organisms suggesting that it was induced by potential waterborne cues from the copepods or changes in water chemistry. Domoic acid production may be related to defense against grazing in P. seriata although it was not shown in the present study. To evaluate if the induction of domoic acid production was mediated by the chemical cues from damaged P. seriata cells, live P. seriata cells were exposed to a P. seriata cell homogenate, but no effect was observed. Chain formation in P. seriata was affected only when in direct contact with the copepods. This study suggests that the presence of zooplankton may be one of the factors affecting the toxicity of Pseudo-nitzschia blooms in the field.

show abstract

Section: Discussionmentioning

confidence: 76%

Section: Discussionmentioning

confidence: 79%

See 1 more Smart Citation

Induction of domoic acid production in the toxic diatom Pseudo-nitzschia seriata by calanoid copepods

et al. 2015

View full text Add to dashboard Cite

show abstract

“…Several studies have shown no differences in copepod feeding on toxic vs. non-toxic species of Pseudo-nitzschia, and that copepods can accumulate DA in their tissues (Lincoln et al, 2001;Maniero et al, 2005;Leandro et al, 2010). These studies indicate that copepods will feed on toxic Pseudo-nitzschia, if present, and may concentrate DA in their tissues prior to ingestion by menhaden which could increase the amount of toxin available for upper trophic level consumers in Louisiana.…”

Section: Discussionmentioning

confidence: 77%

Gulf menhaden (Brevoortia patronus): A potential vector of domoic acid in coastal Louisiana food webs

et al. 2010

Self Cite

View full text Add to dashboard Cite

“…The quantity of toxins eliminated daily by copepods was 64%, so copepods accumulated DA in their tissues. Leandro et al found that copepods (C. finmarchicus) showed ability as a DA carrier with transfer to the next consumer of upper trophic level 38 . Our results showed that DA content in P. viridis was greater than in C. lugubris and P. fucata, probably because of the different filtration rates of each mussel.…”

Section: Discussionmentioning

confidence: 99%

Accumulation of domoic acid in marine organisms from Sriracha bay, Chonburi province, Thailand

Veschasit¹,

Meksumpun²,

Thawonsode³

et al. 2017

ScienceAsia

View full text Add to dashboard Cite

Domoic acid (DA), a toxin produced by diatoms Pseudo-nitzschia and Nitzschia, causes amnesic shellfish poisoning. DA accumulated in marine organisms from Sriracha bay, Chonburi province, Thailand was determined from May 2012 to July 2013. Field surveys and sample collections were conducted every two months. DA content was determined using the enzyme linked immunosorbent assay (ELISA) method and ranged between not detectable and 110 ng/l for plankton. DA content in zooplankton ranged between 0.04 and 0.21 ng/l and in Perna viridis, Crassostrea lugubris, and Pinctada fucata it ranged between 214 and 454, 171 and 371, and 117 and 282 ng/g, respectively. DA content in Secutor megalolepis ranged between not detectable and 44.2 ng/g. DA was found in zooplankton, shellfish, and fish from Sriracha bay throughout the year. The amount of DA accumulation in marine organisms was lower than the regulation level (20 µg/g). Average DA content in zooplankton, shellfish, and fish throughout the year were 42%, 44%, and 5% of the DA content in phytoplankton, respectively. DA transfers from phytoplankton to zooplankton and shellfish were 7% and 8%, respectively, while transfer from zooplankton to fish was 2%.

show abstract

The copepod Calanus finmarchicus: A potential vector for trophic transfer of the marine algal biotoxin, domoic acid

Cited by 39 publications

References 41 publications

Induction of domoic acid production in the toxic diatom Pseudo-nitzschia seriata by calanoid copepods

Induction of domoic acid production in the toxic diatom Pseudo-nitzschia seriata by calanoid copepods

Gulf menhaden (Brevoortia patronus): A potential vector of domoic acid in coastal Louisiana food webs

Accumulation of domoic acid in marine organisms from Sriracha bay, Chonburi province, Thailand

Contact Info

Product

Resources

About