Sasi Nayar

ORCID: 0000-0002-3730-6682
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Marine Biology and Ecology Research
  • Marine and fisheries research
  • Marine and coastal ecosystems
  • Marine and coastal plant biology
  • Algal biology and biofuel production
  • Marine Bivalve and Aquaculture Studies
  • Coastal and Marine Management
  • Coral and Marine Ecosystems Studies
  • Water Quality and Pollution Assessment
  • Heavy metals in environment
  • Isotope Analysis in Ecology
  • Water Quality Monitoring and Analysis
  • Microbial Community Ecology and Physiology
  • Seaweed-derived Bioactive Compounds
  • Collagen: Extraction and Characterization
  • Fish Ecology and Management Studies
  • Marine and Coastal Ecosystems
  • Food Industry and Aquatic Biology
  • Bacteriophages and microbial interactions
  • Water Quality Monitoring Technologies
  • Toxic Organic Pollutants Impact
  • Ichthyology and Marine Biology
  • Coastal wetland ecosystem dynamics
  • Fish Biology and Ecology Studies
  • Phosphorus and nutrient management

South Australian Research and Development Institute
2006-2018

National University of Singapore
1999-2003

Purdue University West Lafayette
1994

It has been shown that some aerobic, unicellular, diazotrophic cyanobacteria temporally separate photosynthetic O2 evolution and oxygen-sensitive N2 fixation. Cyanothece sp. ATCC strain 51142 is an cyanobacterium fixes during discrete periods of its cell cycle. When the bacteria are maintained under diurnal light-dark cycles, fixation occurs in dark. Similar cycling observed continuous light, implicating a circadian rhythm. Under N2-fixing conditions, large inclusion granules form between...

10.1128/jb.176.6.1586-1597.1994 article EN Journal of Bacteriology 1994-03-01

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...

10.1038/sdata.2016.43 article EN cc-by Scientific Data 2016-06-21

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,...

10.1038/sdata.2018.18 article EN cc-by Scientific Data 2018-02-20

10.1016/j.ecss.2005.01.016 article EN Estuarine Coastal and Shelf Science 2005-04-09

Abstract The dominant seagrass in Port Phillip Bay (PPB), Australia, Zostera nigricaulis , declined between 2000 and 2011, coinciding with the ‘Millennium drought’ that ended 2009. These seagrasses are nitrogen-limited, underpinning need to develop nitrogen budgets for better ecosystem management. Environmentally realistic measurements of specific uptake rates resource allocation were undertaken test hypothesis above-ground below-ground compartments able re-mobilise ammonium nitrate through...

10.1038/s41598-018-35549-3 article EN cc-by Scientific Reports 2018-11-15

We sampled the demersal fish community of Bonney Canyon, South Australia at depths (100–1,500 m) and locations that are poorly known. Seventy-eight species were obtained from 12 depth-stratified trawls along, to either side, central canyon axis. Distributional patterns in richness biomass highly correlated. Three assemblage groupings, characterised by small suites with narrow depth distributions, identified on shelf, upper slope mid slope. The groupings largely explained (ρw = 0.78)....

10.1371/journal.pone.0030138 article EN cc-by PLoS ONE 2012-01-11
Coming Soon ...