Advection, Dispersal and Plankton patchines on the Great Barrier Reef

1989 ◽  
Vol 40 (4) ◽  
pp. 403 ◽  
Author(s):  
JS Parslow ◽  
AJ Gabric
Keyword(s):  
Numerical Model ◽  
Great Barrier Reef ◽  
Coefficient Of Variation ◽  
Open Ocean ◽  
Barrier Reef ◽  
Length Scales ◽  
Planktonic Larvae ◽  
Flow Through

The relative dispersal of a patch of planktonic larvae subject to advection through a complex reef matrix is considered. Attention is focused on the growth of the particle and tracer domains, and the development of patchiness. Garrett's (1983) theory for the dispersai of tracer in the open ocean is applied to the Great Barrier Reef. A simplified numerical model of flow through a reef matrix suggests that a point release of tracer will expand to a patch approximately 20 km in radius after 15 to 20 d. The predicted tracer domain is not 'streaky', but does exhibit fluctuations in concentration, with a coefficient of variation of 1 to 2 on length scales of 2 to 3 km.

Cross-shelf exchanges between the Coral Sea and the Great Barrier Reef lagoon determined from a regional-scale numerical model

2015 ◽  
Vol 109 ◽  
pp. 150-163 ◽  
Author(s):  
Andreas Schiller ◽  
Mike Herzfeld ◽  
Richard Brinkman ◽  
Farhan Rizwi ◽  
John Andrewartha
Keyword(s):  
Numerical Model ◽  
Great Barrier Reef ◽  
Regional Scale ◽  
Barrier Reef ◽  
Reef Lagoon ◽  
Coral Sea

Currents and Water Properties in the North-central Great Barrier Reef during the South-east Trade Wind Season

1978 ◽  
Vol 29 (3) ◽  
pp. 345 ◽  
Author(s):  
GR Cresswell ◽  
MA Greig
Keyword(s):  
Great Barrier Reef ◽  
Ocean Circulation ◽  
Trade Wind ◽  
Barrier Reef ◽  
North Central ◽  
Low Salinity ◽  
The North ◽  
Coral Sea ◽  
Flow Through ◽  
A Site

Current meter recordings were made for 18 days at a site near Low Islets in the Great Barrier Reef lagoon and at another site in the nearby Trinity Opening. Hydrological data were collected inside the Barrier Reef and in the adjacent Coral Sea at the start of the experiment. The current records were analysed to gauge the effects of tides, wind, and open ocean circulation features. The lagoon flow was northward with a slight modulation due to the tides. The flow was reduced for several days at a time when there was enhanced eastward flow through Trinity Opening and out to the Coral Sea. The relatively low salinity, cool water in the lagoon is believed to have come from farther south and to have been diluted en route by river runoff.

Hydrodynamics and larval dispersal: a population model of Acanthaster planci on the Great Barrier Reef

1992 ◽  
Vol 43 (3) ◽  
pp. 583 ◽  
Author(s):  
JP Scandol ◽  
MK James
Keyword(s):  
Great Barrier Reef ◽  
Large Scale ◽  
Larval Transport ◽  
Barrier Reef ◽  
Acanthaster Planci ◽  
Dispersal Patterns ◽  
Transport Models ◽  
Southward Shift ◽  
Scale Population ◽  
Flow Through

This paper presents results of a modelling study of the large-scale population dynamics of Acanthaster planci in the central Great Barrier Reef. Dispersal patterns generated by larval transport models are used to drive the simulation. Population flow through the reef matrix during outbreaks is simulated by using an elementary representation of the starfish life cycle. Features of the results include the following: (I) Population patterns generated by the model are consistent with observations of starfish outbreaks. (2) The overall impact of starfish populations undergoing an outbreak on the reef system decreases with a southward shift in the location of initial outbreaks. (3) Within the central Great Barrier Reef, outbreak populations of starfish generally occur more frequently on the inner- and central-matrix reefs than on the outer-matrix reefs.

scholarly journals Marine insects of the genera Halobates and Hermatobates (Heteroptera) from neuston tows around Lizard Island, Great Barrier Reef

1982 ◽  
Vol 33 (6) ◽  
pp. 1109 ◽  
Author(s):  
L Cheng ◽  
PD Schmitt
Keyword(s):  
Great Barrier Reef ◽  
Open Ocean ◽  
Barrier Reef ◽  
Lizard Island

Two species of Halobates and one species of Hermatobates were found in neuston tows taken at seven locations around Lizard Island, Great Barrier Reef. The open-ocean Halobates sericeus Eschscholtz was much more abundant than the nearshore Halobates princeps White. Hermatobates weddi China was mainly found in one location, Watson's Bay, and was more frequently caught at night than during the day. Neither Halobates species was caught in any of the tows taken at night.

Management of Water Quality in the Great Barrier Reef Marine Park

1989 ◽  
Vol 21 (2) ◽  
pp. 31-38 ◽  
Author(s):  
Simon Woodley
Keyword(s):  
Water Quality ◽  
Coral Reef ◽  
Great Barrier Reef ◽  
Barrier Reef ◽  
Management Issue ◽  
Reef System ◽  
Marine Park ◽  
World Heritage List ◽  
The World ◽  
Coral Reef System

The Great Barrier Reef is the largest coral reef system in the world. It is recognised and appreciated worldwide as a unique environment and for this reason has been inscribed on the World Heritage List. The Reef is economically-important to Queensland and Australia, supporting substantial tourism and fishing industries. Management of the Great Barrier Reef to ensure conservation of its natural qualities in perpetuity is achieved through the establishment of the Great Barrier Reef Marine Park. The maintenance of water quality to protect the reef and the industries which depend on it is becoming an increasingly important management issue requiring better knowledge and possibly new standards of treatment and discharge.

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