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- Seagrasses -- Ecology -- Western Australia -- Jurien Bay (2)
- Avicennia marina (1)
- Coastal setting (1)
- Deep soil (1)
- Environmental reconstruction (1)
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- Glomalin-related soil protein (1)
- Halodule uninervis (1)
- Land-use change (1)
- Late Holocene (1)
- Leaves age (1)
- Palaeoecological proxy (1)
- Palaeoproductivity (1)
- Pilbara (1)
- Plant tissue culture (1)
- Plants uptake (1)
- Population genetics (1)
- Posidonia mat (1)
- Remediation (1)
- Rhizosphere (1)
- SNP (1)
- Seagrass (1)
- Seagrass archive (1)
- Seagrasses -- Propagation (1)
- Sedimentology (1)
- Soil quality (1)
- Stable isotopes (1)
- Western Australia (1)
- Western Mediterranean (1)
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Articles 1 - 7 of 7
Full-Text Articles in Marine Biology
Snp Population Genetic Data For The Seagrass Halodule Uninervis From Pilbara Region, Western Australia, Kathryn Margaret Mcmahon, Richard Evans
Snp Population Genetic Data For The Seagrass Halodule Uninervis From Pilbara Region, Western Australia, Kathryn Margaret Mcmahon, Richard Evans
Research Datasets
This dataset contains 80 SNP loci from 15 locations with 25-47 samples per locations. Each column contains data from two alleles. All genotyped samples are included. Prior to population genetic analysis clone mates were identified and removed.
Millennial-Scale Trends And Controls In Posidonia Oceanica (L. Delile) Ecosystem Productivity, Carman Leiva-Dueñas, Lourdes López-Merino, Oscar Serrano, Antonio Martínez Cortizas, Miguel-Angel Mateo
Millennial-Scale Trends And Controls In Posidonia Oceanica (L. Delile) Ecosystem Productivity, Carman Leiva-Dueñas, Lourdes López-Merino, Oscar Serrano, Antonio Martínez Cortizas, Miguel-Angel Mateo
Research outputs 2014 to 2021
Posidonia oceanica is a marine phanerogam that buries a significant part of its belowground production forming an organic bioconstruction known as mat. Despite Posidonia seagrass mats have proven to be reliable archives of long-term environmental change, palaeoecological studies using seagrass archives are still scarce. Here we reconstruct four millennia of environmental dynamics in the NE coast of Spain by analysing the carbon and nitrogen stable isotopic composition of P. oceanica sheaths, the proportion of different seagrass organs throughout the seagrass mat and other sedimentological proxies. The palaeoenvironmental reconstruction informs on long-term ecosystem productivity and nutrient loading, which have been linked …
Remobilization Of Heavy Metals By Mangrove Leaves, Hanan Almahasheer, Oscar Serrano, Carlos M. Duarte, Xabier Irigoien
Remobilization Of Heavy Metals By Mangrove Leaves, Hanan Almahasheer, Oscar Serrano, Carlos M. Duarte, Xabier Irigoien
Research outputs 2014 to 2021
Several studies have been carried out on heavy metal pollution in mangrove ecosystems. However, the role of mangroves in heavy metal remobilization is still relatively unknown. On one side, mangrove woody organs and soils sequester heavy metals for long time periods, but on the other hand, senescence of mangrove leaves may return these metals collected by roots to the upper layers of the soil. Here, we analyzed the concentration of chemical elements (Al, As, Cd, Cr, Cu, Fe, Mn, Mo, Ni, Pb, Sr, V, and Zn) as a function of age in mangrove leaves to understand heavy metals retention by …
Glomalin Accumulated In Seagrass Sediments Reveals Past Alterations In Soil Quality Due To Land-Use Change, Lourdes López-Merino, Oscar Serrano, María Fernanda Adame, Miguel-Ángel Mateo, Antonio Martínez Cortizas
Glomalin Accumulated In Seagrass Sediments Reveals Past Alterations In Soil Quality Due To Land-Use Change, Lourdes López-Merino, Oscar Serrano, María Fernanda Adame, Miguel-Ángel Mateo, Antonio Martínez Cortizas
Research outputs 2014 to 2021
Arbuscular mycorrhizal fungi (AMF), symbionts with most terrestrial plants, produce glomalin-related soil protein (GRSP), which plays a major role in soil structure and quality. Both fungi hyphae and protein production in soils are affected by perturbations related to land-use changes, implying that GRSP is a sensitive indicator of soil quality. Unfortunately, GRSP degrades within years to decades in oxic environments, preventing its use as palaeoecological proxy. However, GRSP is transported to marine, near-shore anoxic sediments, where it accumulates and remains non-degraded, enabling the assessment of its potential as a palaeoecological proxy for soil ecosystem's health. Exploiting this fact, we have …
The Effects Of Light Reduction Treatments On Mobile Epifaunain An Amphibolis Griffithii (Black) Den Hartog Seagrass Ecosystem, Helen Barwick
The Effects Of Light Reduction Treatments On Mobile Epifaunain An Amphibolis Griffithii (Black) Den Hartog Seagrass Ecosystem, Helen Barwick
Theses : Honours
One of the main anthropogenic disturbances to seagrass meadows in Australia is reduction in light availability, through nutrient enrichment or suspended sediments. Dredging can create suspended sediment plumes from the expulsion of particulates into the water column and in tum reduces light penetration to seagrass ecosystems. Preliminary investigations have demonstrated that light reduction for different intensities and durations results in reduced seagrass and epiphytic algae biomass. The main aim of this study was to determine the effects of different intensities and durations of light reduction on epifaunal assemblages in Amphibolis griffithii seagrass meadows in Jurien Bay, Western Australia. This was …
Effects Of Temporary Par Reduction On The Seagrass Amphibolis Griffithii (Black) Den Hartog, Paul R. Mackey
Effects Of Temporary Par Reduction On The Seagrass Amphibolis Griffithii (Black) Den Hartog, Paul R. Mackey
Theses : Honours
Declines in seagrass health and distribution are commonly caused through human induced reductions in the availability of photosynthetically active radiation (PAR). These reductions can result from a variety of human-induced perturbations, including channel dredging. The impetus for the research was driven by the broad-scale degradation of the ecologically important southern-Australian endemic seagrass Amphibolis griffithii (Black) den Hartog in Champion Bay, Geraldton, Western Australia. The study investigated the affects of reduced PAR on A. griffithii and identified responses that may be useful in developing management triggers to minimise the impact of PAR limitation events. The study was carried out during late …
The In Vitro Propagation Of Seagrasses : Halophila Ovalis, Ruppia Megacarpa And Posidonia Coriacea, Melissa Grace Henry
The In Vitro Propagation Of Seagrasses : Halophila Ovalis, Ruppia Megacarpa And Posidonia Coriacea, Melissa Grace Henry
Theses : Honours
Seagrass communities are of high ecological and economic significance. They provide a nursery area for commercial and recreational juvenile fish and crustacea. Seagrasses also play an important role in influencing the structure and function of many estuarine and nearshore marine environments. Unfortunately, the decline of seagrasses, as a result of human impact, has increased in recent years. This decline has become a major problem throughout the world. Current methods used to restore degraded seagrass beds are limited, the most promising being transplanting material from healthy donor beds. This approach is expensive because it is labor intensive and damages the donor …