6. Díaz PA et al. 2014. Harmful Algae 40:
9-22
7. Molinet C et al 2003. Rev Chil Hist Nat
76: 681-698
Authors
Cristina Hernández, Laboratorio Salud
Pública, Seremi de Salud Región de Los
Lagos, Crucero 1915, Puerto Montt,
Chile
Fig. 2. Evolution of the Oceanic Niño Index (ONI) from 1950 to 2016.
ed, coinciding with the absence of vege-
tative cells in the water column.
Our results suggest that large-scale
atmospheric and oceanographic pro-
cesses (climatic anomalies) modulated
the late summer A. catenella bloom
observed in southern Chile. Consider-
ing that the most affected areas were
observed on the open coasts of Los
Lagos Region (Chacao channel and Cu-
cao beach), the hypothesis of offshore
planktonic populations advected in to
the coastal region gains strength. Pa-
rameterization of the effect of these cli-
matic anomaliesin terms of intensity
and phenologyon the development
of massive proliferation A. catenella is
poorly understood in this area. There-
fore, the identification of climatic sig-
nals and the development of predictive
simulations on oceanographic condi-
tions that might serve as early warning
of future A. catenella events is a priority
for the region.
Acknowledgements
We thank the Monitoring Programme of
the Los Lagos Region (Laboratorio de
Salud Pública, SEREMI de Salud Región
de Los Lagos) for reports on shellfish
toxin analysis. Manuel Díaz helped with
map representations.
References
1. Lagos N 2003. Comments Toxicol 9: 175-
193
2. Hallegraeff GM 1993. Phycologia 32: 79-
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3. Anderson DM et al 2012. Harmful Algae
14: 10-35
4. Anderson DM et al 2005. Deep Sea Res II
52: 2522-2542
5. Alves de Souza C et al 2008. Botanica
Marina 51: 399-410
Patricio A. Díaz & Carlos Molinet, Pro-
grama de Investigación Pesquera &
Instituto de Acuicultura, Universidad
Austral de Chile, PO Box 1327, Los Pinos
s/n, Balneario Pelluco, Puerto Montt,
Chile.
Miriam Seguel, Centro Regional de
Análisis de Recursos y Medio Ambiente,
Los Pinos s/n, Balneario Pelluco, Puerto
Montt, Chile
Email: patriciodiazuach.cl
Fig. 4. Weekly changes in Alexandrium
catenella cell densities (red circles) and
paralytic shellfish toxins (blue squares) in
Chacao Channel, Los Lagos Region.
Fig. 4. Monthly Sea Surface Temperature (SST, upper panels) and SST anomalies (lower panels) from January to May. Anomalies were computed
with the 2003-2015 monthly means from MODIS images.
2
HARMFUL ALGAE NEWS NO. 54 / 2016
Harmful Algae News An IOC Newsletter on Toxic Algae and Algal Blooms No. 54 - August 2016 www.ioc-unesco.org/hab Exceptional climate anomalies and north wards expansion of Paralytic Shellfish Poisoning outbreaks in Southern Chile Harmful Algal Blooms (HAB), in partic- ular recurrent events of the P
6. Díaz PA et al. 2014. Harmful Algae 40: 9-22 7. Molinet C et al 2003. Rev Chil Hist Nat 76: 681-698 Authors Cristina Hernández, Laboratorio Salud Pública, Seremi de Salud Región de Los Lagos, Crucero 1915, Puerto Montt, Chile Fig. 2. Evolution of the Oceanic Niño Index (ONI) from 1950 to 2016. e
Cochlodinium polykrikoides blooms in southern Cuba during anomalous hot dry seasons (average depth, 1.2 m) estu- ary fed by the Arimao River. This wetland is on the south- west of the semi-enclosed Bay of Cienfuegos (southern Cuba) and connected to it by a single channel. The area is subject to two
periods (April/May 2005 and January 2015) 8-9. During the 2015, a bloom of C. polykrikoides was also recorded in channels of a small marina from Hava- na, north-western Cuba, in September, without apparent damage to marine life 10. Acknowledgements Fig. 2. C. polykrikoides (A) and dead blue crabs (C
Is Ciguatera moving south in Australia? Ciguatera Fish Poisoning (CFP) is well- known in tropical regions around the world, including the Pacific. The illness occurs through the consumption of fish that have accumulated naturally occur- ring ciguatoxins (CTXs) produced by the dinoflagellate genus Ga
ic CTX) 8. The illnesses occurred be- tween February and April each year in NSW (Fig 1), coinciding with the peak Spanish mackerel fishing season. There is an apparent southern expansion of the geographic range of CFP along the east coast of Australia (Fig. 1). The catch locations of the fish from t
A survey of BHAB assemblages utilizing the artificial substrate method in Rawa Island, Malaysia Benthic dinoflagellates are marine tychoplanktonic inhabitants on the natural substrates of coral reefs in tropical and subtropical coastal wa- ters. These dinoflagellates are associ- ated with their pref
Annual variability of Prorocentrum lima and abiotic factors in Chengue Bay, T ayrona National Park, Colombian Caribbean Fig. 1. Study area where samples of Thalassia testudinum were collected. Chengue Bay (black star), Tayrona National Park, Colombian Caribbean Prorocentrum lima is a cosmopolitan s
del Mar -CECIMAR (sede Caribe) y Pro- grama de Postgrados en Biología - Línea Biología Marina ( contribution 430 ). Thanks also to the Banco Español de Algas de Gran Canaria, in particular to Mr. E. Soler Onis, and to the Jardin Bo- tánico Canario Viera y Clavijo for sup- port with the SEM, and to t
Training Workshop on the Culturing and Identification of Benthic Harmful Marine Dinoflagellates A Training Workshop on the Culturing and Identification of Benthic Harmful Marine Dinoflagellates was held in the State Key Laboratory in Marine Pollu- tion (SKLMP), City University of Hong Kong between 1
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Participants were encouraged to orga- nize local or regional training courses to train more experts on harmful algae identification. The IOC WESTPAC-HAB working group shall assist local groups in training their local community by sending suitable trainers to the training workshop and by providing te
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Forthcoming events Seafood Safety: New Findings & Innovation Challenges Brussels, 25-26 January 2017 Deadline for registration: 15 January 2017 (early bird 25 November 2016). Abstract submission deadline: 15 October 2016. www.ecsafeseafoodconference.com 11th International Conference on Modern and Fo