LGL Report No. TA4200-3 12 October 2005The proposed Neptune LNG project will deliver LNG to offshore deepwater ports for regasification and shipment to shore by pipeline. Details of the project are discussed in the main application. The relevant aspects are discussed later in the present report. The proposed project activities during construction and operation will introduce noise into the water column, which may affect marine animals. The potential for those effects to occur and their significance are addressed in this assessment. The potential for ship-collisions with marine mammals was not part of the scope of the present assessment and is discussed elsewhere in the application matereials. Three groups of marine animals are considered: marine mammals (whales and seals), sea turtles, and marine fish and invertebrates. The assessment consists of four parts. (1) The first part of the assessment determines the species and numbers in each group that are present in the area likely to be influenced by the project. This is followed by (2) a review of the known effects of the types of noise emanating from the Neptune project based on information from other studies. Part (3) is an acoustic analysis of the source levels of the various project noises followe
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