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You searched for: Subject biomass Remove constraint Subject: biomass Subject term Gonyaulax Remove constraint Subject term: Gonyaulax
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1. THE influence of local and regional oceanographic processes on phytoplankton distribution in continental shelf waters off north-western ireland

Author:
S. O'Boyle; R. Raine
Source:
Biology and environment 2007 v.107 no.2 pp. 95-109
ISSN:
0791-7945
Subject:
Bacillariophyceae; Gonyaulax; Guinardia; Karenia; Leptocylindrus; Noctiluca; Oscillatoria; Prorocentrum; biomass; chlorophyll; coasts; continental shelf; flora; indicator species; phytoplankton; species diversity; Ireland
Abstract:
...

The distribution of phytoplankton is related to local and regional oceanographic features off the north-western coast of Ireland. A thermohaline front known as the Irish Shelf Front (ISF) that separates coastal and oceanic water was observed in the study area. Phytoplankton biomass levels, as indicated by chlorophyll concentrations, were higher on the coastal side of the frontal boundary. Insho ...

DOI:
10.3318/BIOE.2007.107.2.95

2. Occurrence of Amoebophrya spp. infection in planktonic dinoflagellates in Changjiang (Yangtze River) Estuary, China

Author:
Caiwen Li; Shuqun Song; Yun Liu; Tiantian Chen
Source:
Harmful algae 2014 v.37 pp. 117-124
ISSN:
1568-9883
Subject:
Alexandrium; Ceratium; Gonyaulax; Gymnodinium; Karenia; algae; algal blooms; biomass; coastal water; estuaries; genetic variation; host specificity; organic matter; parasitism; plankton; salinity; China; East China Sea; Yangtze River
Abstract:
... The parasitic dinoflagellates in the genus of Amoebophrya can infect broad ranges of planktonic dinoflagellates, and transform algal biomass into organic matter that can be recycled within the planktonic community. The ecological significance of Amoebophrya spp. during harmful algal bloom (HAB) events was gradually recognized along with revelation of its host specificity and diversity in picoplank ...
DOI:
10.1016/j.hal.2014.05.009

3. Ecohydrographic constraints on biodiversity and distribution of phytoplankton and zooplankton in coral reefs of the Red Sea, Saudi Arabia

Author:
Benjamin Kürten; Hisham S. Khomayis; Reny Devassy; Saskia Audritz; Ulrich Sommer; Ulrich Struck; Mohsen M. El‐Sherbiny; Ali M. Al‐Aidaroos
Source:
Marine ecology 2015 v.36 no.4 pp. 1195-1214
ISSN:
0173-9565
Subject:
Bacillariophyceae; Copepoda; Dinophysis; Gastropoda; Gonyaulax; Synechococcus; Trichodesmium erythraeum; aquaculture; biodiversity; biomass; chlorophyll; coasts; community structure; coral reefs; flow cytometry; islands; larvae; latitude; microscopy; particulate organic matter; phytoplankton; salinity; temperature; trophic relationships; zooplankton; Red Sea; Saudi Arabia
Abstract:
... An integral concept of ecological research is the constraint of biodiversity along latitudinal and environmental gradients. The Red Sea features a natural example of a latitudinal gradient of salinity, temperature and nutrient richness. Coral reefs along the Red Sea coasts are supported with allochthonous resources such as oceanic and neritic phytoplankton and zooplankton; however, relatively litt ...
DOI:
10.1111/maec.12224

4. Harmful phytoplankton in the Beagle Channel (South America) as a potential threat to aquaculture activities

Author:
Gastón O. Almandoz; Adrián O. Cefarelli; Soledad Diodato; Nora G. Montoya; Hugo R. Benavides; Mario Carignan; Marcelo Hernando; Elena Fabro; Katja Metfies; Nina Lundholm; Irene R. Schloss; Marcela Álvarez; Martha E. Ferrario
Source:
Marine pollution bulletin 2019 v.145 pp. 105-117
ISSN:
0025-326X
Subject:
Alexandrium catenella; Alexandrium tamarense; Azadinium; Bacillariophyceae; Dinophysis acuminata; Gonyaulax; algal blooms; biomass; domoic acid; microalgae; mollusc culture; neurotoxins; phylogeny; phytoplankton; poisonous algae; taxonomy; toxicity; water pollution; South America
Abstract:
... The Beagle Channel is a remote subantarctic environment where mussel aquaculture initiatives have existed since the early 1990s. Here we analyze phytoplankton biomass and composition, and the occurrence of harmful microalgae species and their toxins at three sites during the period 2015–2016. The occurrence of potentially harmful algae was observed throughout the study period, including toxigenic ...
DOI:
10.1016/j.marpolbul.2019.05.026

5. Structure Elucidation and Relative Toxicity of (24R)-24-Hydroxyyessotoxin from a Namibian Isolate of Gonyaulax spinifera

Author:
Isabelle Rajotte; Cheryl Rafuse; Elliott J. Wright; John C. Achenbach; Lee D. Ellis; Pearse McCarron
Source:
Journal of natural products 2019 v.82 no.7 pp. 1945-1952
ISSN:
1520-6025
Subject:
Danio rerio; Gonyaulax; biomass; hydroxylation; liquid chromatography; mass spectrometry; nuclear magnetic resonance spectroscopy; solvents; toxicity; yessotoxin
Abstract:
... Liquid chromatography–high-resolution mass spectrometry (LC-HRMS) analysis of a Namibian strain of Gonyaulax spinifera showed the presence of a number of yessotoxins (YTXs). Principal among these were YTX (1), homoYTX (2), and a tentative hydroxylated analogue that did not correspond to any previously confirmed YTX structures. Culturing the G. spinifera strain afforded sufficient biomass for purif ...
DOI:
10.1021/acs.jnatprod.9b00318

6. Harmful algal blooms of the Benguela eastern boundary upwelling system

Author:
Grant C. Pitcher; Deon C. Louw
Source:
Harmful algae 2021 v.102 pp. 101898
ISSN:
1568-9883
Subject:
Alexandrium catenella; Alexandrium minutum; Dinophysis acuminata; Dinophysis fortii; Gonyaulax; Karenia; Prorocentrum; abalone; algal blooms; anaerobic conditions; biomass; birds; coasts; diarrhetic shellfish poisoning; domoic acid; ecosystems; farms; human health; mortality; plankton; poisoning; poisonous algae; shellfish; yessotoxin
Abstract:
... The Benguela Upwelling System (BUS) is subject to a high incidence of HABs. Of the major shellfish poisoning syndromes associated with HABs, Paralytic and Diarrhetic Shellfish Poisoning (PSP and DSP) pose the greatest concern, but as documented herein there are several other HAB organisms that are also present. Blooms of Alexandrium catenella have been recognised as the typical cause of PSP since ...
DOI:
10.1016/j.hal.2020.101898

7. Responses of phytoplankton community structure and association to variability in environmental drivers in a tropical coastal lagoon

Author:
Lipika Tarafdar; Ji Yoon Kim; Suchismita Srichandan; Madhusmita Mohapatra; Pradipta R. Muduli; Abhishek Kumar; Deepak R. Mishra; Gurdeep Rastogi
Source:
Science of the total environment 2021 v.783 pp. 146873
ISSN:
0048-9697
Subject:
Alexandrium; Chlorophyta; Chrysophyceae; Cyanobacteria; Diploneis; Euglenozoa; Gonyaulax; Landsat; Prorocentrum; biomass; coastal water; community structure; data collection; habitats; pH; phytoplankton; salinity; water temperature; India
Abstract:
... Spatial and seasonal heterogeneity in phytoplankton communities are governed by many biotic and abiotic drivers. However, the identification of long-term spatial and temporal trends in abiotic drivers, and their interdependencies with the phytoplankton communities' structure is understudied in tropical brackish coastal lagoons. We examined phytoplankton communities' spatiotemporal dynamics from a ...
DOI:
10.1016/j.scitotenv.2021.146873