scholarly journals Filtration of the Microalga Amphidinium carterae by the Polychaetes Sabella spallanzanii and Branchiomma luctuosum: A New Tool for the Control of Harmful Algal Blooms?

2022 ◽  
Vol 10 (1) ◽  
pp. 156
Author(s):  
Loredana Stabili ◽  
Margherita Licciano ◽  
Adriana Giangrande ◽  
Carmela Caroppo
Keyword(s):  
Human Health ◽  
Harmful Algal Blooms ◽  
Algal Blooms ◽  
Feeding Activity ◽  
Marine Ecosystem ◽  
Harmful Algae ◽  
Retention Efficiency ◽  
Amphidinium Carterae ◽  
Negative Impacts ◽  
Harmful Microalgae

Harmful algal blooms (HABs) are extreme biological events representing a major issue in marine, brackish, and freshwater systems worldwide. Their proliferation is certainly a problem from both ecological and socioeconomic contexts, as harmful algae can affect human health and activities, the marine ecosystem functioning, and the economy of coastal areas. Once HABs establish, valuable and environmentally friendly control actions are needed to reduce their negative impacts. In this study, the influence exerted by the filter-feeding activity of the two sabellid polychaetes Branchiomma luctuosum (Grube) and Sabella spallanzanii (Gmelin) on a harmful dinoflagellate was investigated. Clearance rates (C) and retention efficiencies were estimated by employing the microalga Amphidinium carterae Hulburt. The Cmax was 1.15 ± 0.204 L h−1 g−1 DW for B. luctuosum and 0.936 ± 0.151 L h−1 g−1 DW for S. spallanzanii. The retention efficiency was 72% for B. luctuosum and 68% for S. spallanzanii. Maximum retention was recorded after 30 min for both species. The obtained results contribute to the knowledge of the two polychaetes’ filtration activity and to characterize the filtration process on harmful microalgae in light of the protection of water resources and human health. Both species, indeed, were extremely efficient in removing A. carterae from seawater, thus suggesting their employment as a new tool in mitigation technologies for the control of harmful algae in marine environments, as well as in the aquaculture facilities where HABs are one of the most critical threats.

scholarly journals Marine harmful algal blooms and human health: A systematic scoping review

Harmful Algae ◽  
2020 ◽  
Vol 98 ◽  
pp. 101901
Author(s):  
Nick Young ◽  
Richard A. Sharpe ◽  
Rosa Barciela ◽  
Gordon Nichols ◽  
Keith Davidson ◽  
...  
Keyword(s):  
Human Health ◽  
Scoping Review ◽  
Harmful Algal Blooms ◽  
Algal Blooms

scholarly journals Economic impact of harmful algal blooms on human health: a systematic review

2019 ◽  
Vol 17 (4) ◽  
pp. 499-516 ◽  
Author(s):  
Christian R. C. Kouakou ◽  
Thomas G. Poder
Keyword(s):  
Systematic Review ◽  
Economic Impact ◽  
Human Health ◽  
Harmful Algal Blooms ◽  
Algal Blooms ◽  
Well Being ◽  
Global Network ◽  
Economic Losses ◽  
Health Costs ◽  
Life Years

Abstract Harmful algal blooms (HABs) damage human activities and health. While there is wide literature on economic losses, little is known about the economic impact on human health. In this review, we systematically retrieved papers which presented health costs following exposure to HABs. A systematic review was conducted up to January 2019 in databases such as ScienceDirect and PubMed, and 16 studies were selected. Health costs included healthcare and medication expenses, loss of income due to illness, cost of pain and suffering, and cost of death. Two categories of illness (digestive and respiratory) were considered for health costs. For digestive illness cost, we found $86, $1,015 and $12,605, respectively, for mild, moderate and severe cases. For respiratory illness, costs were $86, $1,235 and $14,600, respectively, for mild, moderate and severe cases. We used Quality-Adjusted Life Years (QALYs) to access the loss of well-being due to illness caused by HABs. We found that breathing difficulty causes the most loss of QALYs, especially in children, with a loss of between 0.16 and 0.771 per child. Having gastroenteritis could cause a loss of between 2.2 and 7.1 QALYs per 1,000 children. Misleading symptoms of illness following exposure to HABs could cause bias in health costs estimations. This article has been made Open Access thanks to the generous support of a global network of libraries as part of the Knowledge Unlatched Select initiative.

Study on the Selective Grazing of Zooplankton in Plankton Ecosystem

2013 ◽  
Vol 864-867 ◽  
pp. 17-21
Author(s):  
Yan Lin Zheng ◽  
Zhuo Ying Lv
Keyword(s):  
Harmful Algal Blooms ◽  
Algal Blooms ◽  
Marine Ecosystem ◽  
Laboratory Data ◽  
Ecosystem Dynamics ◽  
Human Environment ◽  
Grazing Behavior ◽  
Toxic Phytoplankton ◽  
Type Iv ◽  
Selective Grazing

Harmful algal blooms (Habs) caused great harm to the human environment. Habs occurrence was connected with other types of plankton. This relationship may be restrictive, and may also be promotional. Selectivity of zooplankton grazing has an important influence on the Habs. The behavior of zooplankton selective grazing was studied in the plankton ecosystem formed by three populations of nontoxic phytoplankton-toxic phytoplankton-zooplankton (NTP-TTP-Z) system. The selective grazing function of zooplankton on toxic phytoplankton and non-toxic phytoplankton was built based on Holling type IV functional response. Numerical simulation was given depending on the laboratory data. Results show that the models nicely explained the selective grazing behavior of zooplankton in the three species ecosystem, and provided key parameters for the marine ecosystem dynamics models.

scholarly journals Centers for Oceans and Human Health: a unified approach to the challenge of harmful algal blooms

2008 ◽  
Vol 7 (Suppl 2) ◽  
pp. S2 ◽  
Author(s):  
Deana L Erdner ◽  
Julianne Dyble ◽  
Michael L Parsons ◽  
Richard C Stevens ◽  
Katherine A Hubbard ◽  
...  
Keyword(s):  
Human Health ◽  
Harmful Algal Blooms ◽  
Algal Blooms ◽  
Unified Approach

scholarly journals Red Tides

EDIS ◽  
2008 ◽  
Vol 2008 (3) ◽  
Author(s):  
Jorge R. Rey
Keyword(s):  
Human Health ◽  
Harmful Algal Blooms ◽  
Algal Blooms ◽  
Marine Ecosystems ◽  
Red Tides ◽  
And Control

ENY-851, a 5-page illustrated factsheet by Jorge R. Rey, explains what these “harmful algal blooms” are, what causes them, their impacts on marine ecosystems, human health, and coastal economies, and strategies for mitigation and control. Includes references. Published by UF Entomology and Nematology Department, February 2008.

scholarly journals Causes, Human Health Impacts and Control of Harmful Algal Blooms: A Comprehensive Review

2018 ◽  
Vol 3 (1) ◽  
pp. 40-55 ◽  
Author(s):  
Sangeeta Sonak ◽  
◽  
Kavita Patil ◽  
Prabha Devi ◽  
◽  
...  
Keyword(s):  
Human Health ◽  
Harmful Algal Blooms ◽  
Algal Blooms ◽  
Health Impacts ◽  
Comprehensive Review ◽  
Human Health Impacts ◽  
And Control

Harmful algal blooms and eutrophication along the mexican coast of the Gulf of Mexico large marine ecosystem

2017 ◽  
Vol 22 ◽  
pp. 120-128 ◽  
Author(s):  
Marco J. Ulloa ◽  
Porfirio Álvarez-Torres ◽  
Karla P. Horak-Romo ◽  
Rogelio Ortega-Izaguirre
Keyword(s):  
Gulf Of Mexico ◽  
Harmful Algal Blooms ◽  
Algal Blooms ◽  
Marine Ecosystem ◽  
Large Marine Ecosystem

scholarly journals Planktonic algal blooms from 2000 to 2015 in Acapulco Bay, Guerrero, Mexico

2018 ◽  
pp. 61-93 ◽  
Author(s):  
Maria Esther A. Meave del Castillo ◽  
María Eugenia Zamudio Resendiz
Keyword(s):  
Harmful Algal Blooms ◽  
Algal Blooms ◽  
Southern Oscillation ◽  
Marine Ecosystem ◽  
Cold Season ◽  
Paralytic Shellfish Poisoning ◽  
Shellfish Poisoning ◽  
Cell Counts ◽  
Paralytic Shellfish ◽  
Using Data

Background and Aims: Harmful algal blooms (HABs) affect the marine ecosystem in multiple ways. The objective was to document the species that produced blooms in Acapulco Bay over a 15-year period (2000-2015) and analyze the presence of these events with El Niño-Southern Oscillation (ENSO).Methods: Thirty-five collections, made during the years 2000, 2002-2004, 2006-2011, 2013-2015, were undertaken with phytoplankton nets and Van Dorn bottle, yielding 526 samples, of which 423 were quantified using the Utermöhl method. The relationship of HAB with ENSO was made with standardized values of Multivariate ENSO Index (MEI) and the significance was evaluated with the method quadrant sums of Olmstead-Tukey.Key results: Using data of cell density and high relative abundance (>60%), 53 blooms were recorded, most of them occurring during the rainy season (June-October) and dry-cold season (November-March), plus 37 blooms reported by other authors. These 90 blooms were composed of 40 taxa: 21 diatoms and 19 dinoflagellates, the former mostly innocuous. Sixty-seven blooms had species reported as noxious, of which 11 species commonly produce toxic HAB. Toxic taxa are Pseudo-nitzschia spp. (four taxa), and seven dinoflagellates.Conclusions: Abundance analyses of Pyrodinium bahamense var. compressum and Gymnodinium catenatum against values of MEI showed a clear tendency to produce HAB in La Niña conditions. Both taxa, producers of saxitoxins, cause paralytic shellfish poisoning (PSP) and coexist in Acapulco; therefore, they present a risk to human health. Another noxious 52 taxa found in Acapulco were currently considered potential HABs, because they have been recorded at low densities. Given the sharp differences in density values of bloom-forming species found in this work compared to those reported by other authors on similar dates, it is important to perform calibration tests to rule out possible errors in cell counts.

Sign in / Sign up

Export Citation Format

Share Document