James Cook University Subject Handbook - 2020

CH2042 - Marine Chemistry and Chemical Ecology

Subject Description

An introductory subject on the principles of marine chemistry and marine chemical ecology. Definition and history of marine chemistry and chemical ecology. Properties and chemical composition of seawater. Major elements in seawater. Conservative and non-conservative elements. Biogeochemical cycles. Horizontal and vertical distribution of biolimiting elements. Determination of nutrients in seawater. Minor or trace elements in seawater, sediments and marine organisms. Bioaccumulation and biomagnification of trace elements in marine organisms. Trace element speciation and toxicity. Carbonate equilibria in the sea. Ecological role of dissolved organic carbon (DOC) compounds in seawater. Chemical communication conveyed by DOC, allochemical effects. Invertebrate-toxic host relationships, symbiosis and mutualism, coral spawning chemistry. Fatty acids, steroids, terpenes, nitrogenous compounds, fish and shellfish toxins. Potential applications of marine biotechnology-ectocrines and filter feeders, mollusk chemistry, tunichromes, metal ion sequestering and pharmacological activity.

Learning Outcomes

• to introduce the study of marine pollution
• to understand ecology in terms of chemical interactions
• to understand the basic principles of marine chemistry

Subject Assessment

• Practical performance and Reports - (30%)
• Invigilated > End of semester exam - (50% - 60%)
• Invigilated > Other exams - (10% - 20%)
• Non-Invigilated > Assignments - (10%)

Note that minor variations might occur due to the continuous subject quality improvement process, and in case of minor variation(s) in assessment details, the Subject Outline represents the latest official information.

Assumed Knowledge:  CH1002 or CH1012 recommended in addition to CH1001 or CH1011

Availabilities