Nitrogen and phosphorus budgets for the central Great Barrier Reef Shelf

Shelf-scale budgets were developed for the nutrient elements nitrogen (N) and phosphorus (P) in the central Great Barrier Reef between Cape Tribulation (I 60 S} and Dunk Island (ca. 18°S). The intent was to quantify: I} stocks of nutrients (nitrogen (N). phosphorus (P) and silicon (Si}) naturally occurring in central Great Barrier Reef waters; 2) natural gradients and variability in water column nutrient concentrations; 3} natural fluxes of nutrients into and out of shelf waters for comparison with anthropogenic or anthropogenically affected nutrient sources

Chapter 06: Vulnerability of Great Barrier Reef plankton to climate change

Our approach here is to examine potential ways that climate change may alter plankton communities of the GBR in the future, focusing on the physical mechanisms that currently drive plankton productivity and composition. Many of the oceanographic and climatic features of the western Coral Sea and GBR region and the ways in which they may be influenced by climate change are detailed in Steinberg (see chapter 3). Smaller members of the plankton such as the viruses and bacteria are covered by Webster and Hill (see chapter 5). Key reef-associated organisms with planktonic life stages such as crown-of-thorns starfish, corals, fish and jellyfish, as well as the ecosystem-level responses such as their recruitment and patch connectivity, will be covered by Kingsford and Welch (see chapter 18). Since there are no long time series of plankton data for waters of the GBR for assessing climaterelated trends and their drivers, and few detailed studies in the laboratory or in the field, this review necessarily draws on relevant knowledge from other ecosystems, tropical where possible, and others when required.This is Chapter 6 of Climate change and the Great Barrier Reef: a vulnerability assessment. The entire book can be found at http://hdl.handle.net/11017/13

Biological and chemical oceanographic measurements in Far Northern Great Barrier Reef - February 1990

This report presents and sununarises the results of biological and chemical oceanographic sampling carried out in the far northern Great Barrier Reef during February 1990. The region sampled (ca. 11-13°S), lies adjacent to the eastern side of Cape York Peninsula, locations on which are under consideration for national park declaration, the construction of a rocket launching facility and silica sand mining. As little is known regarding the biological and chemical oceanography of the region, a reconnaissance survey was carried out to obtain baseline data on hydrographic, nutrient and sediment characteristics of shelf waters and sediments. It is expected that the data presented herein will form part of the environmental assessment for development in, and conservation of, the region and serve as a basis for designing more detailed and focused water quality surveys

Dissolved and particulate nutrients in waters of the Whitsunday Island Group 1988

This report summarizes the results of hydrographic sampling of physical properties and nutrient determinations made on water samples and water column particulate matter collected in February. 1988 during an oceanographic survey through the Whitsunday Island group. The survey was carried out to obtain background data on concentrations of chlorophyll, organic and inorganic nitrogen (N). phosphorus (P), and inorganic silicate (Si) in waters of the Whitsunday Island group. For comparative purposes, hydrographic and nutrient data from ten stations occupied in inter-reefal and lagoonal waters of the central and southern GBR during January. 1987 and February, 1988 are also presented

Integrating observation systems: an example from the Great Barrier Reef

The Australian Integrated Marine Observing System (IMOS) project has deployed a set of focused observational equipment in the southern part of the Great Barrier Reef. This represents an good case study in what it actually means to deliver an integrated set of observations, how integration can be achieved and what the real benefits of true data integration are

Concept Expansion Using Semantic Fisheye Views

Exploratory search over a collection often requires users to iteratively apply a variety of strategies, such as searching for more general or more specific concepts in reaction to the information they encounter. Rich semantic models, such as WordNet, are potentially valuable aids for making sense of this information. However, these large complex models often contain specialized vocabularies and a detailed level of granularity that makes them difficult to use for opportunistic search. In this paper, we describe how Semantic Fisheye Views (SFEV) can be designed to transparently integrate rich semantic models into the search process, allowing users to effectively explore a diverse range of related concepts without explicitly navigating over the underlying model. The SFEV combines semantic guided search with interactive visualization techniques, creating a search tool that we have found to be significantly more effective for exploratory tasks than those based on keyword-similarity alone

Testing for Implicit Gender Bias among Plastic Surgeons

Background: The aim of this study was to examine for the presence of implicit bias within the field of plastic surgery using a gender-specific Implicit Association Test (IAT), specifically looking at gender and career stereotypes. Methods: A Gender-Career/Family Implicit Association Test was developed and distributed to the international plastic surgery community. Mean scores were calculated. Respondents were provided with an automated summary interpretation of their results, categorizing association for a particular grouping of gender and career/family as a little or no, slight, moderate, or strong. Respondents were also asked a series of demographic and post-IAT questions. Results: Ninety-five responses were available for analysis. Overall, respondents showed a moderate-to-strong association of male + career / female + family compared with the reverse, which was statistically significant. Nearly half of the respondents thought they might have an implicit gender-related bias; however, 50% post-test would not change their behavior based on results, while 9.5% would. Conclusions: Plastics surgeons may have an unconscious tendency to associate men with a career and women with a family. Further steps must be taken to increase awareness and mitigate the impact of implicit gender bias

Ecological Aspects of Harmful Algal In Situ Population Growth Rates

14 pages, 4 figures, 2 tablesPeer reviewe