scholarly journals Dispersal, location of bloom initiation, and nutrient conditions determine the dominance of the harmful dinoflagellate Alexandrium catenella : A meta‐ecosystem study

2021 ◽  
Author(s):  
Anneke Kristin Purz ◽  
Dorothee Hodapp ◽  
Stefanie Devi Moorthi
Keyword(s):  
Alexandrium Catenella ◽  
Harmful Dinoflagellate ◽  
Nutrient Conditions

Cloning, sequencing and transcriptional analysis of ubiquitin gene from Alexandrium catenella under different nutrient conditions

2020 ◽  
Vol 53 (2) ◽  
Author(s):  
Zeeshan Niaz ◽  
Zhenghong Sui ◽  
Sadaf Riaz ◽  
Sohrab Khan ◽  
Qingwei Du ◽  
...  
Keyword(s):  
Transcriptional Analysis ◽  
Alexandrium Catenella ◽  
Nutrient Conditions

Inactivation of harmful dinoflagellate (Alexandrium catenella) in ballast water by electric treatment

2008 ◽  
Vol 58 (2) ◽  
pp. 297-301 ◽  
Author(s):  
Chutimon Satirapipathkul ◽  
Koichi Iwakabe ◽  
Hiroaki Habaki ◽  
Junjiro Kawasaki
Keyword(s):  
Ballast Water ◽  
Alexandrium Catenella ◽  
Electric Treatment ◽  
Harmful Dinoflagellate

Effect of salinity on interspecific competition between the dinoflagellate Alexandrium catenella and the raphidophyte Heterosigma akashiwo

2018 ◽  
Vol 81 (1) ◽  
pp. 73-82 ◽  
Author(s):  
Y Yamasaki ◽  
M Fujita ◽  
S Kawano ◽  
T Baba
Keyword(s):  
Interspecific Competition ◽  
Heterosigma Akashiwo ◽  
Alexandrium Catenella

Queixas de nutrizes que buscam atendimento em um banco de leite humano e fatores associados

2019 ◽  
Vol 87 (25) ◽  
Author(s):  
Lara Thaiane Souza Pereira ◽  
Taynara Cassimiro de Moura Alves ◽  
Nathalya da Silva Louro ◽  
Nayara Franklin Cesar ◽  
Juliana das Dores Ferreira ◽  
...  
Keyword(s):  
Retrospective Study ◽  
Data Collection ◽  
Women's Health ◽  
Breast Feeding ◽  
Reliable Information ◽  
Previous Experience ◽  
Cross Sectional ◽  
Lactating Mothers ◽  
Milk Banks ◽  
Nutrient Conditions

O objetivo deste artigo é analisar as queixas de nutrizes que buscaram atendimento em um BLH e fatores associados.Trata-se de um estudo descritivo, analítico, transversal, retrospectivo, cuja população é composta por 1.709 nutrizes quebuscaram atendimento no período de Janeiro a Dezembro de 2016. Para a coleta de dados, utilizaram-se as fichas deatendimento do BLH. As principais queixas que levaram as nutrizes a buscarem atendimento no BLH relacionam-se àdificuldade com a técnica de amamentação (41,9%) e a problemas mamários, como o ingurgitamento mamário (27,1%) eo trauma mamilar (18,1%). A necessidade de auxílio na técnica de amamentação esteve associada às seguintes condiçõesrelativas à nutriz: ser procedente da capital (p=0,001), apresentar mais de oito anos de estudo (p=0,040), ter uma ocupação (p=0,010), ser primípara (p=<0,001), optar pela realização de parto cesárea (p=<0,001) e ter experiência préviacom amamentação (p=0,004). Houve associação entre ingurgitamento mamário e primiparidade (p=0,038), além do fatode a nutriz ter contado com o apoio ao aleitamento materno na maternidade (p=0,021). O estudo possibilitou verificar aimportância dos BLH no processo de lactação, um período em que as mulheres ficam ansiosas, necessitam de informaçõesconfiáveis e apresentam muitas queixas em relação à lactação.PALAVRAS-CHAVES : Aleitamento materno, Bancos de leite, Saúde da mulher. Abstract: The aim of this article is to analyze the complaints of lactating mothers who sought care in a HMB and associatedfactors. It is a descriptive, cross-sectional, retrospective study, whose population is composed of 1.709 lactating mothers whosought care in the period from January to December the 2016. For the data collection, were used the service records ofthe HMB. The main complaints that led the lactating mothers to seek care at HMB were related to the difficulty with thebreastfeeding technique (41.9%) and to breast problems, such as breast engorgement (27.1%) and nipple trauma (18,1%). Theneed for breastfeeding technique was associated to the following nutrient conditions: coming from the capital (p = 0.001),presenting more than eight years of study (p = 0.040), having an occupation (p = 0.010), being primiparous (p = <0.001), optfor cesarean (p = 0.001) and to have previous experience with breastfeeding (p = 0.004). There was an association betweenbreast engorgement and primiparity (p = 0.038), in addition to the fact that the mother had support for breastfeeding in thematernity ward (p = 0.021). The study made it possible to verify the importance of HMBs in the lactation process, a period inwhich women become anxious, require reliable information and have many complaints about lactation.Keywords: Breast feeding, Milk banks, Women’s health

scholarly journals Mitigation of harmful algal blooms caused by Alexandrium catenella and reduction in saxitoxin accumulation in bivalves using cultivable seaweeds

Harmful Algae ◽  
2021 ◽  
Vol 105 ◽  
pp. 102056
Author(s):  
Peter H. Sylvers ◽  
Christopher J. Gobler
Keyword(s):  
Harmful Algal Blooms ◽  
Algal Blooms ◽  
Alexandrium Catenella

Evaluation of temperature, pH and nutrient conditions in bacterial growth and extracellular hydrolytic activities of two Alicyclobacillus spp. strains

2021 ◽  
Author(s):  
Lourdes Yaret Ortiz-Cortés ◽  
Lucía María Cristina Ventura-Canseco ◽  
Miguel Abud-Archila ◽  
Víctor Manuel Ruíz-Valdiviezo ◽  
Irving Oswaldo Velázquez-Ríos ◽  
...  
Keyword(s):  
Bacterial Growth ◽  
Hydrolytic Activities ◽  
Nutrient Conditions

Day and night regulation of the HO-1/HSP32 synthesis in the harmful dinoflagellate Prorocentrum minimum: response to salinity stress

2021 ◽  
Vol 539 ◽  
pp. 151545
Author(s):  
Sofia A. Pechkovskaya ◽  
Nickolay A. Knyazev ◽  
Sergei O. Skarlato ◽  
Natalia A. Filatova
Keyword(s):  
Salinity Stress ◽  
Prorocentrum Minimum ◽  
Harmful Dinoflagellate

scholarly journals Distribution of Growth-Inhibiting Bacteria against the Toxic Dinoflagellate Alexandrium catenella (Group I) in Akkeshi-Ko Estuary and Akkeshi Bay, Hokkaido, Japan

2020 ◽  
Vol 11 (1) ◽  
pp. 172
Author(s):  
Yuka Onishi ◽  
Akihiro Tuji ◽  
Atsushi Yamaguchi ◽  
Ichiro Imai
Keyword(s):  
Surface Waters ◽  
Seagrass Bed ◽  
Bacterial Strains ◽  
Toxic Dinoflagellate ◽  
Sequence Analyses ◽  
Alexandrium Catenella ◽  
Group I ◽  
Colony Forming Units ◽  
Rrna Sequences ◽  
Growth Inhibiting

The distribution of growth-inhibiting bacteria (GIB) against the toxic dinoflagellate Alexandrium catenella (Group I) was investigated targeting seagrass leaves and surface waters at the seagrass bed of Akkeshi-ko Estuary and surface waters of nearshore and offshore points of Akkeshi Bay, Japan. Weekly samplings were conducted from April to June in 2011. GIBs were detected from surface of leaves of the seagrass Zostera marina in Akkeshi-ko Estuary (7.5 × 105–4.7 × 106 colony-forming units: CFU g−1 wet leaf) and seawater at the stations in Akkeshi Bay (6.7 × 100–1.1 × 103 CFU mL−1). Sequence analyses revealed that the same bacterial strains with the same 16S rRNA sequences were isolated from the surface biofilm of Z. marina and the seawater in the Akkeshi Bay. We therefore strongly suggested that seagrass beds are the source of algicidal and growth-inhibiting bacteria in coastal ecosystems. Cells of A.catenella were not detected from seawaters in Akkeshi-ko Estuary and the coastal point of Akkeshi Bay, but frequently detected at the offshore point of Akkeshi Bay. It is suggested that A.catenella populations were suppressed by abundant GIBs derived from the seagrass bed, leading to the less toxin contamination of bivalves in Akkeshi-ko Estuary.

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