scholarly journals Spatial co‐variation in nutrient enrichment and fishing of herbivores in an oceanic coral reef ecosystem

2021 ◽  
Author(s):  
Sally J. Holbrook ◽  
Jean Wencélius ◽  
Alexandra K. Dubel ◽  
Thomas C. Adam ◽  
Dana C. Cook ◽  
...  
Keyword(s):  
Coral Reef ◽  
Nutrient Enrichment ◽  
Coral Reef Ecosystem ◽  
Reef Ecosystem

scholarly journals Kondisi Terumbu Karang Di Kepulauan Seribu Dalam Kaitan Dengan Gradasi Kualitas Perairan

2019 ◽  
Vol 1 (1) ◽  
pp. 93
Author(s):  
Ruswahyuni, Pujiono Wahyu Purnomo
Keyword(s):  
Coral Reef ◽  
Species Composition ◽  
Nutrient Enrichment ◽  
Coral Species ◽  
High Growth ◽  
Coral Reef Ecosystem ◽  
Functional Aspects ◽  
Zooxanthellae Density ◽  
Reef Condition ◽  
Reef Ecosystem

Abstract The increasing of Jakarta land activies caused eutrophication, so that it changes species composition and decreasing of number of species. The sea within the high of eutrophication has correlation with the high growth of alga, depletion of oxygen and change of coral species composition. These researchs was done at coral reef ecosystem of Lancang Island, Pari Island and Payung Island, whereas there are part of Seribu Island Cluster. The aims of research was evaluating of nutrient enrichment effect to morphology and functional of coral reef condition. Morphology figures are showed by basic cover, whereas functional aspects are evaluated by zooxanthellae density. The results are showed that the high eutrophication is significantly correlated with main land of Java Island distance. The increasing of nutrient enrichment is significantly to change profile of coral reef and zooxanthellae densities.

scholarly journals Landscape‐scale patterns of nutrient enrichment in a coral reef ecosystem: implications for coral to algae phase shifts

2020 ◽  
Author(s):  
Thomas C. Adam ◽  
Deron E. Burkepile ◽  
Sally J. Holbrook ◽  
Robert C. Carpenter ◽  
Joachim Claudet ◽  
...  
Keyword(s):  
Coral Reef ◽  
Nutrient Enrichment ◽  
Phase Shifts ◽  
Landscape Scale ◽  
Coral Reef Ecosystem ◽  
Reef Ecosystem

THE COMPOSITION AND DISTRIBUTION OF BENTHIC FORAMINIFERA AT CORAL REEF ECOSYSTEM IN THOUSANDS ISLAND

2013 ◽  
Vol 5 (1) ◽  
Author(s):  
Lumban Nauli Lumban Toruan ◽  
Dedi Soedharma ◽  
Kresna Tri Dewi
Keyword(s):  
Coral Reef ◽  
Human Activities ◽  
Close Association ◽  
Mesh Size ◽  
Coral Reef Ecosystem ◽  
Composition Distribution ◽  
Benthic Foraminifers ◽  
High Nutrient ◽  
Binocular Microscope ◽  
Reef Ecosystem

Composition and distribution of foraminifers are affected by human activities and have close association with coral reef ecosystem. The aims of this research were to investigate the benthic foraminifers’ composition and distribution in sediment of coral reef ecosystem. Eleven stations of Karang Bongkok, Pramuka, and Onrust Island were observed in this study. The sediments were taken from surface substrate up to 2 cm under the substrate. Samples were washed on sieve with mesh size 0,063 mm, and then dried in oven with 50°C of temperature  for two hours. After separating from the sediment, the foraminifers were laid on foraminiferal slide and indentified using binocular microscope. The highest composition of symbiont-bearing foraminiferal assemblages which associated with reef ecosystem was in East Pramuka (78.17%) and the lowest was in South Onrust (21,83%). The opportunistic type had the highest composition in South Onrust (38.67%) and the lowest was in South Karang Bongkok. In west Pramuka had the highest composition of heterotrophic type (57.17%) and the lowest was in North Onrust (11.33%). Onrust Island was dominated by opportunistic type, indicating high nutrient. The highest amount of foraminifers’ taxa was found in Karang Bongkok with good coral reef coverage, while the lowest in Onrust facing with Jakarta Bay. Keywords: composition, distribution, benthic foraminifers, coral reef.

Measurement of the trophic level of fish in a coral reef ecosystem using stable isotopes

2013 ◽  
Vol 19 (1) ◽  
pp. 105-115 ◽  
Author(s):  
Guohuan YANG ◽  
Xingli SUN ◽  
Xiuqiong HOU ◽  
Chunliang CHEN
Keyword(s):  
Stable Isotopes ◽  
Coral Reef ◽  
Trophic Level ◽  
Coral Reef Ecosystem ◽  
Reef Ecosystem

Marine reserves, fisheries ban, and 20 years of positive change in a coral reef ecosystem

2021 ◽  
Author(s):  
Peter J. Mumby ◽  
Robert S. Steneck ◽  
George Roff ◽  
Valerie J. Paul
Keyword(s):  
Coral Reef ◽  
Marine Reserves ◽  
Positive Change ◽  
Coral Reef Ecosystem ◽  
Reef Ecosystem

Integrity evaluation and dynamic simulation of Xisha coral reef ecosystem

2021 ◽  
Vol 41 (10) ◽  
Author(s):  
王耕，董瑞，周腾禹，徐惠民，丁德文 WANG Geng
Keyword(s):  
Coral Reef ◽  
Dynamic Simulation ◽  
Coral Reef Ecosystem ◽  
Reef Ecosystem
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