Prototype scale mooring load and transmission tests for a floating tire breakwater /

Prototype scale tests of the mooring load and wave transmission characteristics of a floating tire breakwater were conducted in the large wave tank at the Coastal Engineering Research Center. Standard Goodyear Tire and Rubber Co. 18-tire modules connected to form breakwaters, 4 and 6 modules (8.5 and 12.8 meters, 28 and 42 feet) wide in the direction of wave advance, were tested in water depths of 2 and 4 meters (6.56 and 13.12 feet). Monochromatic waves with a 2.64- to 8.25-second period range and heights up to 1.4 meters (4.6 feet) were used in the tests. Test results indicate that wave transmission is mainly a function of the breakwater width to incident wavelength ratio with a slight dependence on the incident wave height. However, the mooring forces are mainly a function of the incident wave height with only a slight dependence on the incident wavelength and breakwater width. Recommended design curves for the wave transmission coefficient versus breakwater width to wavelength ratio and mooring load as a function of incident wave height are presented. (Author).

Inspections of previously monitored coastal structures /

Includes bibliographical references: (p. 54-55).

Periodic inspection of jetties at Manasquan Inlet, New Jersey : armor unit monitoring for period 1994-1998 /

Includes bibliographical references: (p. 60).

Accretion of beach sand behind a detached breakwater.

Mode of access: Internet.

Model hydraulic breakwater studies /

Mode of access: Internet.

Shipboard hydraulic breakwater /

Mode of access: Internet.

Wave extinction by pneumatic breakwater /

Mode of access: Internet.

Verification of the Froude modeling law for hydraulic breakwater /

Mode of access: Internet.

A ripple tank study of wave refraction /

Mode of access: Internet.

Floating breakwater survey, 15 August 1959 to 30 June 1960 /

Mode of access: Internet.

Floating breakwater survey, Summer and Fall, 1960 /

Mode of access: Internet.

Closely spaced piles as a breakwater /

Mode of access: Internet.

Pier and breakwater construction on the Great Lakes, particularly in regard to requisite stability economy /

Mode of access: Internet.

Wave protection aspects of harbor design : a manual of principles and procedures /

Mode of access: Internet.

Resource partitioning in sympatric delphinids: Space use and habitat preferences of Australian snubfin and Indo-Pacific humpback dolphins

1. Many species of delphinids co-occur in space and time. However, little is known of their ecological interactions and the underlying mechanisms that mediate their coexistence. 2. Snubfin Orcaella heinsohni, and Indo-Pacific humpback dolphins Sousa chinensis, live in sympatry throughout most of their range in Australian waters. I conducted boat-based surveys in Cleveland Bay, north-east Queensland, to collect data on the space and habitat use of both species. Using Geographic Information Systems, kernel methods and Euclidean distances I investigated interspecific differences in their space use patterns, behaviour and habitat preferences. 3. Core areas of use (50% kernel range) for both species were located close to river mouths and modified habitat such as dredged channels and breakwaters close to the Port of Townsville. Foraging and travelling activities were the dominant behavioural activities of snubfin and humpback dolphins within and outside their core areas. 4. Their representative ranges (95% kernel range) overlapped considerably, with shared areas showing strong concordance in the space use by both species. Nevertheless, snubfin dolphins preferred slightly shallower (1-2 m) waters than humpback dolphins (2-5 m). Additionally, shallow areas with seagrass ranked high in the habitat preferences of snubfin dolphins, whereas humpback dolphins favoured dredged channels. 5. Slight differences in habitat preferences appear to be one of the principal factors maintaining the coexistence of snubfin and humpback dolphins. I suggest diet partitioning and interspecific aggression as the major forces determining habitat selection in these sympatric species.