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Development of Indicators for Assessing and Monitoring Nutrient Influences in Coastal Waters

...oyed in this study included nitrogen stable isotope ratios (delta 15N) of natural marine flora communities (macroalgae, seagrasses and mangroves), which were used to infer nitrogen source and fate. In regions devoid of macrophytes, an active biolog...

Development of water transparency criteria for Florida seagrasses

Development of water transparency criteria for Florida seagrasses ... The Florida Department of Environmental Protection (DEP) is developing a new transparency standard for marine wat...

Ecophysiology of the marine cyanobacterium, Lyngbya majuscula (Oscillatoriaceae) in Moreton Bay, Australia

...se amplitude modulated (PAM) fluorometry assessments of photosynthetic capacity. The effects of L. majuscula on various seagrasses in the bloom region were also assessed with repeated biomass sampling. The bloom commenced in January 2000 following...

Effect of 'brown tide' shading on eelgrass

...), and reduced the light available to plants living on the bottom of the embayments. In particular, the temperate water seagrass Zostera marina L. (eelgrass) was affected by the reduced light availability due to the “brown tide” algal blooms. ... B...

Effect of the seagrass Zostera capricorni on sediment microbial processes

Effect of the seagrass Zostera capricorni on sediment microbial processes ... The effect of the seagrass Zostera capricorni on sediment microbial processes was studied in a tank experiment, where vegetated and unvegetated co...

Effects of light deprivation on the survival and recovery of the seagrass Halophila ovalis (RBr) Hook

Effects of light deprivation on the survival and recovery of the seagrass Halophila ovalis (RBr) Hook ... Survival and recovery of the seagrass Halophiln ovalis (R.Br.) Hook during and after li...

Effects of Light on Seagrass Photosynthesis, Growth and Depth Distribution

Effects of Light on Seagrass Photosynthesis, Growth and Depth Distribution ... The relationships between light regime, photosynthesis, growth and de...

Effects of nutrient enrichment in the nation's estuaries: A decade of change

...ptoms are more prevalent in systems with longer residence times, such as coastal lagoons. The successful restoration of seagrass in Tampa Bay is encouraging though future management to sustain the recovery will be difficult given expected populatio...

Effects of ultraviolet and photosynthetically active radiation on five seagrass species

Effects of ultraviolet and photosynthetically active radiation on five seagrass species ... Five seagrass species [Halophila ovalis (R.Br) Hook. f., Halodule uninervis (Forsk.) Aschers., Zostera capricorni Aschers., Cymodocea...

Environmental Management of Aquaculture Effluent: Development of Biological Indicators and Biological Filters

...ses of the amino acid composition, tissue nitrogen content and stable isotope ratio of nitrogen ([delta][super:15]N) in seagrasses, mangroves and macroalgae were developed as biological indicators to determine the influence of shrimp farm effluent...

Estimating nutrient availability in seagrass sediments

Estimating nutrient availability in seagrass sediments ... Estimating nutrient availability in seagrass sediments ... Bill Dennison ... Udy JW and Dennison WC...

Experimental manipulation of canopy density in a temperate seagrass (Amphibolis griffithii (Black) den Hartog) meadow: effects on sediments

Experimental manipulation of canopy density in a temperate seagrass (Amphibolis griffithii (Black) den Hartog) meadow: effects on sediments ... Experimental manipulation of canopy density...

Fertilization Changes Seagrass Community Structure but not Blue Carbon Storage: Results from a 30-Year Field Experiment

Fertilization Changes Seagrass Community Structure but not Blue Carbon Storage: Results from a 30-Year Field Experiment ... Seagrass ecosystems are at...

Global seagrass distribution and diversity: A bioregional model

Global seagrass distribution and diversity: A bioregional model ... Seagrasses, marine flowering plants, are widely distributed along temperate and tropical coastlines of the world. Seagrasses hav...

Great Barrier Reef Report Card Regional Summaries - 2009 Baseline

...g the report card results for land practices, catchment indicators and loads, and the marine parameters; water quality, seagrass, and corals. It also describes positive actions in the regions to improve ecosystem health. For additional details on t...

Growth and physiological responses of three seagrass species to elevated sediment nutrients in Moreton Bay, Australia

Growth and physiological responses of three seagrass species to elevated sediment nutrients in Moreton Bay, Australia ... Seagrasses, marine angiosperms with high rates of...

In situ seagrass photosynthesis measured using a submersible, pulse-amplitude modulated fluorometer

In situ seagrass photosynthesis measured using a submersible, pulse-amplitude modulated fluorometer ... Assessments of photosynthetic ac...

Influence of submarine springs and wastewater on nutrient dynamics of Caribbean seagrass meadows

Influence of submarine springs and wastewater on nutrient dynamics of Caribbean seagrass meadows ... The east coast of the Yucatan Peninsula, Mexico, consists of highly permeable limestone, such that surface...

Lagoon scale processes in a coastally influenced Caribbean system: Implications for the seagrass Thalassia testudinum

Lagoon scale processes in a coastally influenced Caribbean system: Implications for the seagrass Thalassia testudinum ... The Bocas del Toro archipelago in the Caribbean sea on the northwest coast of Panama has high...

Light Adaptations of Plants: A Model Based on the Seagrass Zostera marina L.

Light Adaptations of Plants: A Model Based on the Seagrass Zostera marina L. ... Light Adaptations of Plants: A Model Based on the Seagrass Zostera marina L. ... Bill Dennison .....

Light Availability and Diurnal Growth of a Green Macroalga (Caulerpa-Cupressoides) and a Seagrass (Halophila-Decipiens)

Light Availability and Diurnal Growth of a Green Macroalga (Caulerpa-Cupressoides) and a Seagrass (Halophila-Decipiens) ... The effects of daily light period on diurnal growth patterns of a green macroalga [ Caulerpa...

Light climate and energy flow in the seagrass canopy of Amphibolis griffithii (J.M. Black) den Hartog

Light climate and energy flow in the seagrass canopy of Amphibolis griffithii (J.M. Black) den Hartog ... Full description Thirty 3 m diameter plots were established...

Light intensity and the interactions between physiology, morphology and stable isotope ratios in five species of seagrass

Light intensity and the interactions between physiology, morphology and stable isotope ratios in five species of seagrass ... The effects of light intensity on stable isotope ratios, physiology and morphology of five seagrass species were in...

Linking water quality to living resources in a mid-Atlantic lagoon system, USA

...makes them susceptible to eutrophication resulting from anthropogenic nutrient loadings. An intensive water quality and seagrass monitoring program was initiated to track ecological changes in the Maryland and Virginia coastal bays. The purpose of...

Long-term nutrient reductions lead to the unprecedented recovery of a temperate coastal region

...ich is highly relevant to the utility of environmental management programs worldwide. ... submersed aquatic vegetation, seagrass, eutrophication, global change, ecosystem management ... Bill Dennison ... Rebecca Murphy ... Jeni Keisman ... Lefcheck...

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