A5078538086- Marine and coastal ecosystems
- Algal biology and biofuel production
- Marine Biology and Ecology Research
- Aquatic Ecosystems and Phytoplankton Dynamics
- Protist diversity and phylogeny
- Microbial Community Ecology and Physiology
- Biocrusts and Microbial Ecology
- Marine Bivalve and Aquaculture Studies
- Aquaculture Nutrition and Growth
- Marine and fisheries research
- Isotope Analysis in Ecology
- Marine and coastal plant biology
- Coastal wetland ecosystem dynamics
- Hydrocarbon exploration and reservoir analysis
- Geology and Paleoclimatology Research
- Toxic Organic Pollutants Impact
- Wastewater Treatment and Nitrogen Removal
- Paleontology and Stratigraphy of Fossils
- Ichthyology and Marine Biology
- Echinoderm biology and ecology
- Ocean Acidification Effects and Responses
- Environmental DNA in Biodiversity Studies
- Photosynthetic Processes and Mechanisms
- Diatoms and Algae Research
- Genomics and Phylogenetic Studies
CSIRO Oceans and Atmosphere
2006-2023
Commonwealth Scientific and Industrial Research Organisation
2012-2023
Australian National Fish Collection
2015-2020
Australian National Algae Culture Collection
2020
University of Tasmania
1993-2000
Background Dinoflagellates are an ecologically important group of protists with functions as primary producers, coral symbionts and in toxic red tides. Although widely studied, the natural diversity dinoflagellates is not well known. DNA barcoding has been utilized successfully for many protist groups. We used this approach to systematically sample known “species”, a reference measure three marine environments. Methodology/Principal Findings In study, we assembled large cytochrome c oxidase...
DNA barcoding offers an efficient way to determine species identification and measure biodiversity. For dinoflagellates, ancient alveolate group of about 2000 described extant species, studies have revealed large amounts unrecognized diversity, most which is not represented in culture collections. To date, two mitochondrial gene markers, Cytochrome Oxidase I (COI) b oxidase (COB), been used assess both failed amplify all taxa suffered from low resolution. Nevertheless, genes yielded many...
:Strains of the genus Nannochloropsis (Eustigmatophyceae) from Australian National Algae Culture Collection were evaluated by DNA sequence analysis. Strains first assessed analysis a 900-base-pair region plastid rbcL gene (bar-code analysis). This allowed us to identify most strains at specific rank. However, CS-416 and CS-759 produced unique sister N. oceanica in phylogenetic Complete sequences nuclear 18S ribosomal (r)DNA for these two strains. The results analyses an alignment...
Abstract Tasmania is an island state in south-eastern Australia that has a long and rich history of seaweed use, research, development. It cool-temperate system with 750 macroalgal species currently described. Tasmanian Aboriginal peoples have lived on this land for at least 40,000 years utilising as food, shelter, water carriers medicine, well ceremonial reasons. Modern taxonomic investigations began French naturalist Jacques-Julien Houtou de La Billardière 1791, there are 184 type...
Abstract There have been many individual phytoplankton datasets collected across Australia since the mid 1900s, but most are unavailable to research community. We searched archives, contacted researchers, and scanned primary grey literature collate 3,621,847 records of marine species from Australian waters 1844 present. Many these small for local questions, combined they provide over 170 years data on communities in waters. Units taxonomy standardised, obviously erroneous removed, all...
The unsaturation ratio of C37 alkenones (U37K′) produced by haptophyte microalgae such as Emiliania huxleyi is often used proxy for past sea surface temperature. In this study, 29 bacterial strains were isolated from cultures the strain E. TWP1. Among alkenone-degrading isolates, Dietzia maris sp. S1 appeared to be able selectively degrade leading increases in palaeoenvironmental U37K′ +0.05 +0.10 units, which equivalent change seen when growth temperature increased 1.5–3.0 °C. This...
The importance of microalgal lipids for the survival and growth shrimp postlarvae has been recognized in a range studies. Microalgae with fast rates high levels polyunsaturated fatty acids (PUFA) are considered vital to maximise production minimise cost larviculture. lipid content acid composition microalgae used varies substantially between algal classes species being Vietnam. This study aims characterise (FA) profiles evaluate most promising under conditions that suitable aquaculture....
Abstract Chlorophyll a is the most commonly used indicator of phytoplankton biomass in marine environment. It relatively simple and cost effective to measure when compared abundance thus routinely included many surveys. Here we collate 173, 333 records chlorophyll collected since 1965 from Australian waters gathered researchers on regular coastal monitoring surveys ocean voyages into single repository. This dataset includes values as measured samples analysed using spectrophotometry,...
Microscopic organisms maintained in long-term living monocultures undergo evolution, adapting to the stable laboratory environment. Culture adaptation can result isolates no longer being representative of their native environmental niche. This study characterized morphology and compared full genomes four daughter cultures toxic cyanobacterium Raphidiopsis raciborskii CS-506 culture for 23 years. The were split from parent between 2 10 years ago. morphotypes two had changed coiled straight...
The green alga Botryococcus braunii produces abundant hydrocarbons, in the form of drop-in biodiesel, which promoted interest species as a renewable fuel. However, despite observation dense populations wild, grows very slowly culture, severely limiting its potential for development bioresource. Undertaking biodiscovery program, we found new strains locations ranging from tropical to temperate Australia and both fresh brackish waters. As part ecophysiological characterisation this...
Raphidiopsis raciborskii is a harmful bloom-forming cyanobacterium with strains that vary in ecophysiology within and between populations around the world. Understanding extent of intraspecific diversity needed to design laboratory experiments capture breadth responses species has abiotic biotic interactions; therefore, choice critical consideration for experimental design. In this paper, we identified major ecotypes 12 R. from three continents, characterizing their morphology via...
Raphidocelis subcapitata is one of the most frequently used species for algal growth inhibition tests. Accordingly, many microalgal culture collections worldwide maintain R. distribution to users. All strains maintained in these are derived from same cultured strain, NIVA-CHL1. However, considering that 61 years have passed since this strain was isolated, we suspected NIVA-CHL1 might acquired various mutations. In study, compared genome sequences among 8 and laboratory Japan evaluate...