|
|
|
|
|
| Velo-suarez, Lourdes; Brosnahan, Michael L.; Anderson, Donald M.; Mcgillicuddy, Dennis J., Jr.. |
| Parasitic dinoflagellates of the genus Amoebophrya infect free-living dinoflagellates, some of which can cause harmful algal blooms (HABs). High prevalence of Amoebophrya spp. has been linked to the decline of some HABs in marine systems. The objective of this study was to evaluate the impact of Amoebophrya spp. on the dynamics of dinoflagellate blooms in Salt Pond (MA, USA), particularly the harmful species Alexandrium fundyense. The abundance of Amoebophrya life stages was estimated 3-7 days per week through the full duration of an annual A. fundyense bloom using fluorescence in situ hybridization coupled with tyramide signal amplification (FISH-TSA). More than 20 potential hosts were recorded including Dinophysis spp., Protoperidinium spp. and Gonyaulax... |
| Tipo: Text |
|
| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00170/28091/26673.pdf |
| |
|
|
| Davidson, Keith; Anderson, Donald M.; Mateus, Marcos; Reguera, Beatriz; Silke, Joe; Sourisseau, Marc; Maguire, Julie. |
| The “Applied Simulations and Integrated Modelling for the Understanding of Harmful Algal Blooms” (Asimuth) project sought to develop a harmful algal bloom (HAB) alert system for Atlantic Europe. This was approached by combining, at a national or regional level, regulatory monitoring phytoplankton and biotoxin data with satellite remote sensing and other information on current marine conditions, coupled with regional scale models that included a representation of HAB transport. Synthesis of these products was achieved by expert interpretation within HAB risk alert bulletins that were prepared on a regular basis (typically weekly) for use by the aquaculture industry. In this preface to the Asimuth Special Issue we outline the main HAB species of concern in... |
| Tipo: Text |
|
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00333/44435/45789.pdf |
| |
|
|
| Landrigan, Philip J.; Stegeman, John J.; Fleming, Lora E.; Allemand, Denis; Anderson, Donald M.; Backer, Lorraine C.; Brucker-davis, Françoise; Chevalier, Nicolas; Corra, Lilian; Czerucka, Dorota; Bottein, Marie-yasmine Dechraoui; Demeneix, Barbara; Depledge, Michael; Deheyn, Dimitri D.; Dorman, Charles J.; Fénichel, Patrick; Fisher, Samantha; Gaill, Françoise; Galgani, Francois; Gaze, William H.; Giuliano, Laura; Grandjean, Philippe; Hahn, Mark E.; Hamdoun, Amro; Hess, Philipp; Judson, Bret; Laborde, Amalia; Mcglade, Jacqueline; Mu, Jenna; Mustapha, Adetoun; Neira, Maria; Noble, Rachel T.; Pedrotti, Maria Luiza; Reddy, Christopher; Rocklöv, Joacim; Scharler, Ursula M.; Shanmugam, Hariharan; Taghian, Gabriella; Van De Water, Jeroen A. J. M.; Vezzulli, Luigi; Weihe, Pál; Zeka, Ariana; Raps, Hervé; Rampal, Patrick. |
| Background: Pollution – unwanted waste released to air, water, and land by human activity – is the largest environmental cause of disease in the world today. It is responsible for an estimated nine million premature deaths per year, enormous economic losses, erosion of human capital, and degradation of ecosystems. Ocean pollution is an important, but insufficiently recognized and inadequately controlled component of global pollution. It poses serious threats to human health and well-being. The nature and magnitude of these impacts are only beginning to be understood. Goals: (1) Broadly examine the known and potential impacts of ocean pollution on human health. (2) Inform policy makers, government leaders, international organizations, civil society, and the... |
| Tipo: Text |
|
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00662/77369/78974.pdf |
| |
|
|
| Brosnahan, Michael L.; Velo-suarez, Lourdes; Ralston, David K.; Fox, Sophia E.; Sehein, Taylor R.; Shalapyonok, Alexi; Sosik, Heidi M.; Olson, Robert J.; Anderson, Donald M.. |
| Transitions between life cycle stages by the harmful dinoflagellate Alexandrium fundyense are critical for the initiation and termination of its blooms. To quantify these transitions in a single population, an Imaging FlowCytobot (IFCB), was deployed in Salt Pond (Eastham, Massachusetts), a small, tidally flushed kettle pond that hosts near annual, localized A. fundyense blooms. Machine-based image classifiers differentiating A. fundyense life cycle stages were developed and results were compared to manually corrected IFCB samples, manual microscopy-based estimates of A. fundyense abundance, previously published data describing prevalence of the parasite Amoebophrya, and a continuous culture of A. fundyense infected with Amoebophrya. In Salt Pond, a... |
| Tipo: Text |
|
| Ano: 2015 |
URL: http://archimer.ifremer.fr/doc/00296/40737/39741.pdf |
| |
|
|
| Tong, Mengmeng; Kulis, David M.; Fux, Elie; Smith, Juliette L.; Hess, Philipp; Zhou, Qixing; Anderson, Donald M.. |
| For many years, the study of toxic Dinophysis species was primarily restricted to field populations until it was recently demonstrated that some of these organisms can be mixotrophically cultured in the laboratory with the ciliate prey, Myrionecta rubra. which had previously been fed with cryptophytes of the genus Teleaulax and Geminigera. Here we investigated the influence of growth phase and light intensity on the production of diarrhetic shellfish poisoning (DSP) toxins and pectenotoxins (PTXs) in cultures of Dinophysis acuminata from the northeastern United States. The cell toxin content of okadaic acid (OA), dinophysistoxin-1 (DTX1), pectenotoxin-2 (PTX2), and the okadaic acid diol ester (OA-D8) varied significantly with growth phase under all light... |
| Tipo: Text |
Palavras-chave: Diarrhetic shellfish poisoning (DSP); Dinophysis acuminata; Dinophysistoxin (DTX); Growth phase; Light; Okadaic acid (OA); Pectenotoxins (PTXs). |
| Ano: 2011 |
URL: http://archimer.ifremer.fr/doc/00037/14827/12195.pdf |
| |
|
|
|
