scholarly journals Response to Comment on “Demographic dynamics of the smallest marine vertebrates fuel coral reef ecosystem functioning”

Science ◽  
2019 ◽  
Vol 366 (6472) ◽  
pp. eaaz1301 ◽  
Author(s):  
Simon J. Brandl ◽  
Renato A. Morais ◽  
Jordan M. Casey ◽  
Valeriano Parravicini ◽  
Luke Tornabene ◽  
...  
Keyword(s):  
Coral Reef ◽  
Population Growth ◽  
Ecosystem Functioning ◽  
Fish Biomass ◽  
Coral Reef Ecosystem ◽  
Demographic Dynamics ◽  
Marine Vertebrates ◽  
Reef Ecosystem ◽  
Cryptobenthic Fishes

Allgeier and Cline suggest that our model overestimates the contributions of cryptobenthic fishes to coral reef functioning. However, their 20-year model ignores the basic biological limits of population growth. If incorporated, cryptobenthic contributions to consumed fish biomass remain high (20 to 70%). Disturbance cycles and uncertainties surrounding the fate of large fishes on decadal scales further demonstrate the important role of cryptobenthic fishes.

scholarly journals Comment on “Demographic dynamics of the smallest marine vertebrates fuel coral reef ecosystem functioning”

Science ◽  
2019 ◽  
Vol 366 (6472) ◽  
pp. eaay9321 ◽  
Author(s):  
Jacob E. Allgeier ◽  
Timothy J. Cline
Keyword(s):  
Coral Reef ◽  
Coral Reefs ◽  
Ecosystem Function ◽  
Ecosystem Functioning ◽  
Fish Biomass ◽  
Fish Production ◽  
Coral Reef Ecosystem ◽  
High Productivity ◽  
Demographic Dynamics ◽  
Reef Ecosystem

Brandl et al. (Reports, 21 June 2019, p. 1189) report that cryptobenthic fishes underpin coral reef ecosystem function by contributing ~60% of “consumed fish” biomass and ~20% of production. These results are artifacts of their simulation. Using their data and model, we show that cryptobenthic species contribute less than 4% to fish production, calling into question the extent to which they contribute to the high productivity of coral reefs.

Coral reef ecosystem functioning: eight core processes and the role of biodiversity

2019 ◽  
Vol 17 (8) ◽  
pp. 445-454 ◽  
Author(s):  
Simon J Brandl ◽  
Douglas B Rasher ◽  
Isabelle M Côté ◽  
Jordan M Casey ◽  
Emily S Darling ◽  
...  
Keyword(s):  
Coral Reef ◽  
Ecosystem Functioning ◽  
Coral Reef Ecosystem ◽  
Reef Ecosystem

The role of a coral reef ecosystem in the biological fixation of CO2

1995 ◽  
Vol 36 (6-9) ◽  
pp. 775-778
Author(s):  
Beatriz Casareto ◽  
Katsumi Yoshida ◽  
Yoshimi Suzuki ◽  
Tetsuo Hiraga ◽  
Tetsuo Okabayasi
Keyword(s):  
Coral Reef ◽  
Coral Reef Ecosystem ◽  
Biological Fixation ◽  
Reef Ecosystem

scholarly journals Kelimpahan dan Biomassa Ikan Karang Famili Scaridae pada Ekosistem Terumbu Karang di Perairan Pulau Kembar, Karimunjawa, Jepara

2020 ◽  
Vol 9 (2) ◽  
pp. 159-166
Author(s):  
Fran Ciputra Tambunan ◽  
Munasik Munasik ◽  
Agus Trianto
Keyword(s):  
Coral Reef ◽  
Reef Fish ◽  
Coral Cover ◽  
Fish Biomass ◽  
Hard Coral ◽  
Coral Reef Ecosystem ◽  
The Family ◽  
Coral Fish ◽  
Hard Coral Cover ◽  
Reef Ecosystem

ABSTRAK : Ikan kakatua merupakan salah satu ikan karang yang dapat membantu kehidupan pada ekosistem terumbu karang. Scaridae mengumpulkan berbagai spesies ganggang dengan cara memakan algae pendek yang menutupi substrat karang sehingga dapat mempengaruhi pertumbuhan terumbu karang. Sebaran Scaridae sangat ditentukan oleh kondisi dan variasi habitat terumbu karang. Penelitian ini bertujuan untuk mengetahui kelimpahan dan biomassa dari ikan Famili Scaridae. Penelitian dilaksanakan pada bulan Oktober 2018 di Perairan Pulau Kembar, Karimunjawa, Jepara. Pengambilan data  ikan karang menggunakan metode UVC dan data substrat terumbu karang diambil menggunakan metode LIT sepanjang 100 meter sejajar garis pantai dengan pengamatan pada dua kedalaman yaitu 3m dan 10m. Berdasarkan hasil penelitian, didapatkan 11.459 individu yang termasuk dalam 49 spesies ikan karang yang berasal dari 14 famili. Ikan karang dari Famili Scaridae ditemukan sebanyak 1059 individu yang termasuk dalam 4 spesies ikan karang yang berasal dari 2 genus. Nilai kelimpahan ikan karang dari Famili Scaridae berkisar antara 48 hingga 204 ind/500m2, kelimpahan terendah berada pada stasiun 1 dan tertinggi berada di stasiun 3.  Nilai biomassa ikan karang dari Famili Scaridae berkisar antara 219,7–2491,7 kg/ha, biomassa terendah berada pada stasiun 1 dan tertinggi berada di stasiun 3.  Berdasarkan hasil penelitian dapat disimpulkan bahawa Pengaruh tutupan karang keras hidup sangat berpengaruh terhadap kelimpahan dan biomassa ikan karang dari Famili Scaridae. ABSTRACT : Parrot fish is one of the reef fish that can help life on the coral reef ecosystem. Scaridae collect various species of algae by eating short algae that cover the coral substrate so that it can affect the growth of coral reefs. Scaridae distribution is highly determined by the condition and variety of coral reef habitats. This study aims to examine the abundance and biomass of Scaridae Family fish. The study was conducted in October 2018 in the waters of the Kembar Islands, Karimunjawa, Jepara. Retrieval of reef fish data using UVC method and coral reef substrate data were taken using the LIT method along 100 meters along the coastline with observations at two depths in 3m and 10. Based on the results, 11,459 individuals were included in 49 species of reef fish originating from 14 families. Coral fish from the Family Scaridae were found as many as 1059 individuals included in 4 species of reef fish originating from 2 genera. The value of coral fish abundance from the Scaridae Family ranges from 48 to 204 ind / 500m2, the lowest abundance is at station 1 and the highest is at station 3. The reef fish biomass value of the Scaridae Family ranges from 219.7 - 2491.7 kg / ha, biomass the lowest is at station 1 and the highest is at station 3. Based on the results of the study it can be concluded that the effect of live hard coral cover is very influential on the abundance and biomass of reef fish from the Scaridae Family.

scholarly journals CORAL REEF ECOSYSTEM MANAGEMENT IN AREA OF EASTERN COASTAL WATER CONSERVATION WEH ISLAND SABANG

2017 ◽  
Vol 8 (2) ◽  
pp. 781
Author(s):  
Nurul Najmi ◽  
Mennofatria Boer ◽  
Fredinan Yulianda
Keyword(s):  
Coral Reef ◽  
Coral Reefs ◽  
Water Conservation ◽  
East Coast ◽  
Group Discussion ◽  
Coral Reef Ecosystem ◽  
The Public ◽  
The Status ◽  
Reef Ecosystem

<em><span>Coral reef<span class="apple-converted-space"> </span>ecosystem<span class="apple-converted-space"> </span>is<span class="apple-converted-space"> </span>important for<span class="apple-converted-space"> </span>coastal<span class="apple-converted-space"> </span>resources.</span><span class="apple-converted-space"><span lang="IN">Damage of Coral reefs resulted in de-gradation of population and fishes reef diversity</span></span><span>.<span class="apple-converted-space"> </span>The East coast ofWeh </span><span lang="IN">Island </span><span>in Sabang </span><span class="apple-converted-space"><span lang="IN">designated as conversation area that has aim to keep coral reefs from destructive utilization activites.</span></span><span>The purpose of<span class="apple-converted-space"> </span>this study<span class="apple-converted-space"> </span>was to </span><span lang="IN">know</span><span class="apple-converted-space"><span> </span></span><span>the status of<span class="apple-converted-space"> </span>coral reefecosystems</span><span>management in</span><span lang="IN"> marine protected</span><span> areaEast </span><span lang="IN">C</span><span>oastWeh</span><span lang="IN"> Island</span><span>, Sabang and </span><span lang="IN">to </span><span>analyze</span><span lang="IN"> the</span><span>attributessensitivelyfromthe</span><span>dimension of</span><span>ecological,socio-economicand institutional</span><span lang="IN"> sector</span><span>.The methodthat used to</span><span lang="IN">know</span><span> the status</span><span>of</span><span class="apple-converted-space"><span> <span lang="IN">the </span></span></span><span>sustainablemanagement</span><span lang="IN">is </span><span>RAPFISHanalysis.</span><span lang="IN">D</span><span>imensions of</span><span>the</span><span>ecology</span><span class="apple-converted-space"><span lang="IN">can be known </span></span><span>by measuring<span class="apple-converted-space"> </span></span><span class="apple-converted-space"><span lang="IN">the coral growth </span></span><span>us</span><span lang="IN">ed</span><span> thePointIntercept</span><span>Transect,reef </span><span lang="IN">f</span><span>ishabundanceus</span><span lang="IN">ed</span><span>UnderwaterVisualCensusFishmethod.</span><span>Socio-economic</span><span>and institutionaldimensions</span><span class="apple-converted-space"><span lang="IN">will be </span></span><span>collected through<span class="apple-converted-space"> </span>Focus Group Discussion(FGD) and<span class="apple-converted-space"> </span>help </span><span lang="IN">by</span><span> questionnaire</span><span lang="IN">s</span><span>.</span><span class="apple-converted-space"><span lang="IN">M</span></span><span>anagement </span><span lang="IN">s</span><span>tatus of<span class="apple-converted-space"> </span>coral reef<span class="apple-converted-space"> </span>ecosystems<span class="apple-converted-space"> </span>in the region of<span class="apple-converted-space"> </span>the East coast<span class="apple-converted-space"> </span>Weh islandmultidimensional</span><span lang="IN">ly</span><span>indicates</span><span class="apple-converted-space"><span lang="IN">that it was </span></span><span>quitesustainable.The most sensitiveattributeof</span><span lang="IN">the </span><span>management</span><span lang="IN">is</span><span>the growth ofsaplings ofcorals,reef fishabundance,</span><span>conflicts between</span><span>fishermen,the public perceptionagainstthe abundance of<span class="apple-converted-space"> </span>fish, the role of<span class="apple-converted-space"> </span>the community, </span><span lang="IN">and the </span><span>fishing</span><span lang="IN">managements</span><span>.</span></em>

scholarly journals RELATIONSHIP BETWEEN THE WAKATOBI NATIONAL PARK ZONATION SYSTEM AND DYNAMICS OF CORAL REEF ECOSYSTEM CONDITION

2017 ◽  
Vol 1 (2) ◽  
pp. 147-156
Author(s):  
Fikri Firmansyah ◽  
Adib Mustofa ◽  
Estradivar ◽  
Adrian Damora ◽  
Christian Novia N Handayani ◽  
...  
Keyword(s):  
Coral Reef ◽  
National Park ◽  
Coral Cover ◽  
Fish Abundance ◽  
Fish Biomass ◽  
Hard Coral ◽  
Coral Reef Ecosystem ◽  
Underwater Visual Census ◽  
Hard Coral Cover ◽  
Reef Ecosystem

The zonation can be evaluated by observing changes in ecosystem and social status in Wakatobi National Park (Taman Nasional Wakatobi – TNW). Coral reef ecosystem is one of the parameters indicating the effectiveness of zonation system. This study grouped TNW zones into No Take Zone (NTZ – area larang ambil; ZI, ZPB, ZPr) and use zone (UZ – area pemanfaatan; ZPL, ZPU) to determine impact of zonation implementation between 2009 – 2016 on coral reef ecosystem. Three parameters (benthic coverage, fish abundance and fish biomass) were determined by Point Intercept Transect (PIT) and underwater visual census (UVC) methods and all of these data were tested using two-way ANOVA. Hard coral coverage fluctuated between 19 – 32% however, NTZ and UZ had no significant hard coral cover differences (F=2,182, df=1, P=0,14). Abundance of carnivour fish (F=0,53, df=1, P=0,46) and herbivour fish (F=1,98, df=1, P=0,17) were similar between those two zones. Fish bombing and poisoning were two major threats until 2007. However, sand mining and waste management has overcome two previous major threats by 2017. Zonation system and its implementation can be one of mangement effectiveness indicators. Support Wakatobi National Park Authority, it is recommended to apply harvest control rules (HCR), regular patrol and monitoring and stakeholders capacity buiding. Keywords Benthic cover; fish abundance; fish biomass

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.

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