scholarly journals δ15N evidence for nitrogen fixation associated with macroalgae from a seagrass-mangrove-coral reef system

1998 ◽  
Vol 167 ◽  
pp. 297-299 ◽  
Author(s):  
R France ◽  
J Holmquist ◽  
M Chandler ◽  
A Cattaneo
Keyword(s):  
Nitrogen Fixation ◽  
Coral Reef ◽  
Reef System ◽  
Coral Reef System

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.

scholarly journals Tidal variability of nutrients in a coastal coral reef system influenced by groundwater

2018 ◽  
Vol 15 (4) ◽  
pp. 997-1009 ◽  
Author(s):  
Guizhi Wang ◽  
Shuling Wang ◽  
Zhangyong Wang ◽  
Wenping Jing ◽  
Yi Xu ◽  
...  
Keyword(s):  
Coral Reef ◽  
Water Column ◽  
Water Depth ◽  
Neap Tide ◽  
Groundwater Discharge ◽  
Spring Tide ◽  
Biological Processes ◽  
Reef System ◽  
Nitrite Nitrate ◽  
Coral Reef System

Abstract. To investigate variation in nitrite, nitrate, phosphate, and silicate in a spring–neap tide in a coral reef system influenced by groundwater discharge, we carried out a time-series observation of these nutrients and 228Ra, a tracer of groundwater discharge, in the Luhuitou fringing reef at Sanya Bay in the South China Sea. The maximum 228Ra, 45.3 dpm 100 L−1, appeared at low tide and the minimum, 14.0 dpm 100 L−1, appeared during a flood tide in the spring tide. The activity of 228Ra was significantly correlated with water depth and salinity in the spring–neap tide, reflecting the tidal-pumping feature of groundwater discharge. Concentrations of all nutrients exhibited strong diurnal variation, with a maximum in the amplitude of the diel change for nitrite, nitrate, phosphate, and silicate in the spring tide of 0.46, 1.54, 0.12, and 2.68 µM, respectively. Nitrate and phosphate were negatively correlated with water depth during the spring tide but showed no correlation during the neap tide. Nitrite was positively correlated with water depth in the spring and neap tide due to mixing of nitrite-depleted groundwater and nitrite-rich offshore seawater. They were also significantly correlated with salinity (R2  ≥  0.9 and P < 0.05) at the ebb flow of the spring tide, negative for nitrate and phosphate and positive for nitrite, indicating the mixing of nitrite-depleted, nitrate- and phosphate-rich less saline groundwater and nitrite-rich, nitrate- and phosphate-depleted saline offshore seawater. We quantified variation in oxidized nitrogen (NOx) and phosphate contributed by biological processes based on deviations from mixing lines of these nutrients. During both the spring and neap tide biologically contributed NOx and phosphate were significantly correlated with regression slopes of 4.60 (R2  =  0.16) in the spring tide and 13.4 (R2  =  0.75) in the neap tide, similar to the composition of these nutrients in the water column, 5.43 (R2  =  0.27) and 14.2 (R2  =  0.76), respectively. This similarity indicates that the composition of nutrients in the water column of the reef system was closely related with biological processes during both tidal periods, but the biological influence appeared to be less dominant, as inferred from the less significant correlations (R2  =  0.16) during the spring tide when groundwater discharge was more prominent. Thus, the variability of nutrients in the coral reef system was regulated mainly by biological uptake and release in a spring–neap tide and impacted by mixing of tidally driven groundwater and offshore seawater during spring tide.

Branching coral as a macroalgal refuge in a marginal coral reef system

Coral Reefs ◽  
2010 ◽  
Vol 29 (2) ◽  
pp. 471-480 ◽  
Author(s):  
S. Bennett ◽  
A. Vergés ◽  
D. R. Bellwood
Keyword(s):  
Coral Reef ◽  
Reef System ◽  
Coral Reef System

scholarly journals Wind-induced variability in larval retention in a coral reef system: A biophysical modelling study in the South-West Lagoon of New Caledonia

2014 ◽  
Vol 122 ◽  
pp. 105-115 ◽  
Author(s):  
Marion Cuif ◽  
David Michael Kaplan ◽  
Jérôme Lefèvre ◽  
Vincent Martin Faure ◽  
Matthieu Caillaud ◽  
...  
Keyword(s):  
Coral Reef ◽  
New Caledonia ◽  
The South ◽  
Larval Retention ◽  
Reef System ◽  
System A ◽  
South West ◽  
Coral Reef System ◽  
Modelling Study ◽  
Biophysical Modelling

scholarly journals Compositional analysis of bacterial communities in seawater, sediment, and sponges in the Misool coral reef system, Indonesia

2017 ◽  
Vol 48 (4) ◽  
pp. 1889-1901 ◽  
Author(s):  
Daniel Francis Richard Cleary ◽  
Ana Rita Moura Polónia ◽  
Leontine E. Becking ◽  
Nicole Joy de Voogd ◽  
Purwanto ◽  
...  
Keyword(s):  
Coral Reef ◽  
Bacterial Communities ◽  
Compositional Analysis ◽  
Reef System ◽  
Coral Reef System

scholarly journals Small-Scale Variability Dominates Benthic Coverage and Diversity Across the Jardines de La Reina, Cuba Coral Reef System

2019 ◽  
Vol 6 ◽  
Author(s):  
Leslie Hernández-Fernández ◽  
Roberto González de Zayas ◽  
Laura Weber ◽  
Amy Apprill ◽  
Maickel Armenteros
Keyword(s):  
Coral Reef ◽  
Small Scale ◽  
Reef System ◽  
Coral Reef System
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