scholarly journals Kesesuaian Zonasi Pulau-Pulau Kecil : Studi Kasus Kawasan Konservasi Gili Sulat Gili Lawang Lombok Indonesia

2020 ◽  
Vol 6 (2) ◽  
pp. 202
Author(s):  
Sitti Hilyana ◽  
Sadikin Amir ◽  
Saptono Waspodo

Gili Sulat Gili Lawang are small islands that have high marine biodiversity and have been designated as a Marine Tourism Park (TWP) covering an area of 10,000 hectares.  This study aims to analyze the suitability of zoning and analysis of space use in each zone. The data was collected by using a structured interview technique using a questionnaire and Focus Group Discussion (FGD) approach. Zoning suitability analysis used a Geographic Information System (GIS). The assessment showed that the conditions of the mangrove ecosystem, coral reef ecosystem and seagrass ecosystem were in the bad to good categories. Based on the zoning suitability analysis of 193.83 hectares (44.02%) of the coral reef area suitable for the core zone, 143.33 hectares (32.55%) consists of 108 hectares of coral reef ecosystems and 35.43 hectares of seagrass ecosystems suitable for the zone. limited use, and 9,666.47 hectares are suitable for other zones consisting of a coral reef rehabilitation zone covering an area of 93.11 hectares, a protection zone of 93.11 hectares and other waters 8,585.76 hectares.

2020 ◽  
Vol 7 (4) ◽  
pp. 169-174
Author(s):  
Chatragadda Ramesh ◽  
Raju Mohanraju

Seagrasses are unique marine flowering plants that play an important ecological role by yielding primary production and carbon sequestration to the marine environment. Seagrass ecosystems are rich in organic matter, supporting the growth of bio-medically important epi and endophytic microorganisms and harbor rich marine biodiversity. They are an essential food source for endangered Andaman state animal Dugongs. Seagrasses are very sensitive to water quality changes, and therefore they serve as ecological bio-indicators for environmental changes. The benthic components in and around the seagrass beds support a significant food chain for other Micro and organisms apart from fishery resources. The epiphytic bacterial communities of the leaf blades support the sustenance against the diseases. Recent reports have shown that the loss of seagrass beds in tropical and temperate regions emphasizes the depletion of these resources, and proper management of seagrass is urgent. The decline of seagrass will impact primary production, biodiversity, and adjacent ecosystems, such as reefs. Therefore, restoring the seagrass meadows could be possible with effective implementing management programs, including seagrass meadows in marine protected areas, restoration projects, seagrass transplantation, implementation of legislative rules, monitoring coastal water quality and human activities in the coastal zone. Lacunas on the seagrass ecosystem management in Andaman & Nicobar Islands are addressed.


PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e6379 ◽  
Author(s):  
Joseph D. DiBattista ◽  
James D. Reimer ◽  
Michael Stat ◽  
Giovanni D. Masucci ◽  
Piera Biondi ◽  
...  

Background Effective biodiversity monitoring is fundamental in tracking changes in ecosystems as it relates to commercial, recreational, and conservation interests. Current approaches to survey coral reef ecosystems center on the use of indicator species and repeat surveying at specific sites. However, such approaches are often limited by the narrow snapshot of total marine biodiversity that they describe and are thus hindered in their ability to contribute to holistic ecosystem-based monitoring. In tandem, environmental DNA (eDNA) and next-generation sequencing metabarcoding methods provide a new opportunity to rapidly assess the presence of a broad spectrum of eukaryotic organisms within our oceans, ranging from microbes to macrofauna. Methods We here investigate the potential for rapid universal metabarcoding surveys (RUMS) of eDNA in sediment samples to provide snapshots of eukaryotic subtropical biodiversity along a depth gradient at two coral reefs in Okinawa, Japan based on 18S rRNA. Results Using 18S rRNA metabarcoding, we found that there were significant separations in eukaryotic community assemblages (at the family level) detected in sediments when compared across different depths ranging from 10 to 40 m (p = 0.001). Significant depth zonation was observed across operational taxonomic units assigned to the class Demospongiae (sponges), the most diverse class (contributing 81% of species) within the phylum Porifera; the oldest metazoan phylum on the planet. However, zonation was not observed across the class Anthozoa (i.e., anemones, stony corals, soft corals, and octocorals), suggesting that the former may serve as a better source of indicator species based on sampling over fine spatial scales and using this universal assay. Furthermore, despite their abundance on the examined coral reefs, we did not detect any octocoral DNA, which may be due to low cellular shedding rates, assay sensitivities, or primer biases. Discussion Overall, our pilot study demonstrates the importance of exploring depth effects in eDNA and suggest that RUMS may be applied to provide a baseline of information on eukaryotic marine taxa at coastal sites of economic and conservation importance.


Author(s):  
Tenri A R ◽  
Danial Sultan ◽  
Asbar Asbar

Liukang Tuppabiring is a waters with marine biodiversity potential large enough to be developed and managed sustainably. Utilization around the coral reefs in the waters of the Liukang Tuppabiring sub-district currently tends to lead to destructive use, so it is necessary to take damage prevention measures immediately. The results showed the condition of coral cover in the medium and damaged, while at stations 1,2,3,4,6 (25,47-41.07%), while conditions were good at station 5 (56.20%). The number of individual reef fish is 290 individuals from 46 species of 22 genera 11 families. At the research location also identified one type of protected biota namely Hawksbill (Eretmochelys imbricata). Coral damage that occurred at 6 observation stations was more caused by the practice of using destructive and environmentally unfriendly fishing equipment such as bombs, trawls, and the use of poisons. The priority strategies undertaken in the management of coral reefs at the study site are 1) Management of environmentally friendly coral reefs where the community as a manager with strong support from the Government; 2) Making clear rules related to utilization in coral reef areas and establishing a POSMAKWAS institution to avoid more severe coral damage; 3) Improve supervision and law enforcement must be firm in relation to the use of fishing gear that can damage coral reef ecosystems.


2019 ◽  
Vol 11 (2) ◽  
pp. 79
Author(s):  
Hendrik A.W Cappenberg ◽  
Thomas Mahulette

Perairan Pulau Buton dan sekitarnya dengan wilayah terumbu karang yang cukup luas, kaya keanekaragaman hayati laut dan nilai estetika yang tinggi. Terumbu karang bermanfaat banyak bagi manusia dalam berbagai aspek ekonomi, sosial, dan budaya. Penelitian megabentos pada ekosistem terumbu karang ini telah dilakukan pada 2016 (April), 2017 (Juni) dan 2018 (Mei). Pengamatan dilakukan pada 15 stasiun yang tersebar pada pulau-pulau besar dan kecil dari timur hingga barat. Tujuan penelitian ini untuk mengetahui sebaran dan kepadatan megabentos serta kemiripan spesies antar stasiun pada perairan tersebut. Pengambilan data dilakukan dengan menggunakan metode Reef Check Benthos (RCB). Hasil pengamatan menunjukkan ada delapan spesies megabentos, diantaranya Drupella cornus menyebar secara luas (100%), dan memiliki nilai total kelimpahan individu tertinggi, berkisar antara 35,7 – 57,9%, (472 – 704 individu). Sedangkan Acanthaster planci memiliki sebaran yang terbatas dengan kelimpahan individu yang rendah (0,3 – 1,0%). Kepadatan individu megabentos pada pengamatan April berkisar antara 0,16 – 2,31 individu/140m2, pada Juni berkisar antara 0,11 – 1,47 individu/140m2 dan 0,11 – 1,24 individu/140m2 pada Mei. Dari tiga tahun pengamatan (2016 – 2018) kelimpahan rata-rata individu megabentos tidak ditemukan adanya perbedaan yang signifikan. Hasil analisa klaster menunjukkan bahwa kehadiran setiap spesies megabentos antar stasiun pengamatan dipengaruhi oleh kemiripan tipe substrat dan habitat.The waters of Buton Island and its surrounding, has a large coral reef area with high species biodiversity and has an aesthetics value and beneficial for human being in many aspects such as economics, social and culture. Researches on megabenthos in coral reef ecosystems have been conducted in 2016 (April), 2017 (June) and 2018 (May) at 15 stations around large and small islands scattered from east to west. The aims of this study were to know the distribution and abundance of megabenthos and similarity of species between stations in these waters. Data collection is conducted using the Reef Check Benthos (RCB) method. The results shows that eight megabenthos was found, where Drupella cornus has a wide distribution (100%), and has the highest total value of individual abundance, ranging from 35.7 - 57.9%, (472 - 704 individuals). Whereas Acanthaster planci has a limited distribution with a low abundance of individuals (0.3 - 1.0%). The abundance of megabenthos in April’s observations ranged from 0.16 - 2.31 individuals/140m2, in June it ranged from 0.11 - 1.47 individuals/140m2 and 0.11 - 1.24 individuals/140m2 in May. In three years of observation (2016 - 2018) the average abundance of megabenthos individuals is not significantly different. The results of cluster analysis showed that the similarity of megabenthos species between observation stations was influenced by similarities in substrate type and habitat.


1970 ◽  
Vol 2 (01) ◽  
pp. 11-17
Author(s):  
Amiruddin Akbar Fisu ◽  
Afandi Ahmad ◽  
Adrianto Hidayat ◽  
Liza Utami Marzaman

Mangrove forests that live in coastal areas, besides being beneficial for human needs, also often clash with development interests such as ports, fish ponds, and tourist areas that threaten their sustainability. Wakatobi Regency has the potential of living natural resources in the form of coastal and marine resources which are quite large, including mangrove ecosystems, seagrass ecosystems and coral reef ecosystems. The purpose of this study is to analyze the potential of mangrove ecosystems and to design the development of mangrove forests as an ecotourism potential. This research is a descriptive-evaluative research, with a qualitative approach. This research is important as a consideration in the development of attractions, which are the main sector in Wakatobi Regency. Mangrove species that dominate throughout the Wakatobi region are Rhizophora spp, Avicennia spp. and Sonneratia spp. Based on the potential of each island in Wakatobi Regency, Kaledupa Island is a priority area to be developed into ecotourism. This study recommends the construction of several supporting facilities for ecotourism on Kaledupa Island. Suggestions and infrastructure include service facilities, trade facilities and accommodation facilities


2020 ◽  
Vol 2 (1) ◽  
pp. 11
Author(s):  
Amiruddin Akbar Fisu ◽  
Afandi Ahmad ◽  
Adrianto Hidayat ◽  
Liza Utami Marzaman

Mangrove forests that live in coastal areas, besides being beneficial for human needs, also often clash with development interests such as ports, fish ponds, and tourist areas that threaten their sustainability. Wakatobi Regency has the potential of living natural resources in the form of coastal and marine resources which are quite large, including mangrove ecosystems, seagrass ecosystems and coral reef ecosystems. The purpose of this study is to analyze the potential of mangrove ecosystems and to design the development of mangrove forests as an ecotourism potential. This research is a descriptive-evaluative research, with a qualitative approach. This research is important as a consideration in the development of attractions, which are the main sector in Wakatobi Regency. Mangrove species that dominate throughout the Wakatobi region are Rhizophora spp, Avicennia spp. and Sonneratia spp. Based on the potential of each island in Wakatobi Regency, Kaledupa Island is a priority area to be developed into ecotourism. This study recommends the construction of several supporting facilities for ecotourism on Kaledupa Island. Suggestions and infrastructure include service facilities, trade facilities and accommodation facilities.Keywords: Mangrove Ecosystem, Kaledupa Island, Ecotourism


2018 ◽  
Author(s):  
James D Reimer ◽  
Joseph DiBattista ◽  
Piera Biondi ◽  
Giovanni D Masucci ◽  
Michael Stat ◽  
...  

Environmental DNA (eDNA) metabarcoding has great potential in assessing comparative total biodiversity, and facilitating robust comparisons across a wide variety of sites and taxa. In particular, eDNA combined with next-generation sequencing can help address the huge critical data gaps in our understanding of marine biodiversity, especially in regions with high levels of understudied diversity such as the coral reefs of the Indo-Pacific region. Within this region, Okinawa is known for its high levels of marine biodiversity and endemicity, and also for the threats shallow coral reef ecosystems face from a variety of stressors including local-scale coastal development and over-exploitation to global scale threats such as climate change. In this study, we generated eDNA metabarcoding sequences from sediment and seawater samples from various reefs in Okinawa, Japan. At the same time, we developed a simple methodology to assess the relative health of these reefs based on anthropogenic and natural stressors. We discuss our eDNA results in comparison to coral reef health, identify potential bioindicator taxa, and explore the relative biodiversity of coral reef communities across sites. Our results indicate that taxa asides from the corals (Scleractinia) can provide robust information on coral reef health.


2018 ◽  
Author(s):  
James D Reimer ◽  
Joseph DiBattista ◽  
Piera Biondi ◽  
Giovanni D Masucci ◽  
Michael Stat ◽  
...  

Environmental DNA (eDNA) metabarcoding has great potential in assessing comparative total biodiversity, and facilitating robust comparisons across a wide variety of sites and taxa. In particular, eDNA combined with next-generation sequencing can help address the huge critical data gaps in our understanding of marine biodiversity, especially in regions with high levels of understudied diversity such as the coral reefs of the Indo-Pacific region. Within this region, Okinawa is known for its high levels of marine biodiversity and endemicity, and also for the threats shallow coral reef ecosystems face from a variety of stressors including local-scale coastal development and over-exploitation to global scale threats such as climate change. In this study, we generated eDNA metabarcoding sequences from sediment and seawater samples from various reefs in Okinawa, Japan. At the same time, we developed a simple methodology to assess the relative health of these reefs based on anthropogenic and natural stressors. We discuss our eDNA results in comparison to coral reef health, identify potential bioindicator taxa, and explore the relative biodiversity of coral reef communities across sites. Our results indicate that taxa asides from the corals (Scleractinia) can provide robust information on coral reef health.


2017 ◽  
Vol 8 (2) ◽  
pp. 781-790
Author(s):  
Nurul Najmi ◽  
Mennofatria Boer ◽  
Fredinan Yulianda

Coral reef ecosystem is important for coastal resources.Damage of Coral reefs resulted in de-gradation of population and fishes reef diversity. The East coast ofWeh Island in Sabang designated as conversation area that has aim to keep coral reefs from destructive utilization activites.The purpose of this study was to know the status of coral reefecosystemsmanagement in marine protected areaEast CoastWeh Island, Sabang and to analyze theattributessensitivelyfromthedimension ofecological,socio-economicand institutional sector.The methodthat used toknow the statusof the sustainablemanagementis RAPFISHanalysis.Dimensions oftheecologycan be known by measuring the coral growth used thePointInterceptTransect,reef fishabundanceusedUnderwaterVisualCensusFishmethod.Socio-economicand institutionaldimensionswill be collected through Focus Group Discussion(FGD) and help by questionnaires.Management status of coral reef ecosystems in the region of the East coast Weh islandmultidimensionallyindicatesthat it was quitesustainable.The most sensitiveattributeofthe managementisthe growth ofsaplings ofcorals,reef fishabundance,conflicts betweenfishermen,the public perceptionagainstthe abundance of fish, the role of the community, and the fishingmanagements.


Author(s):  
Hamzah MS ◽  
Rustam Rustam ◽  
Abdul Rauf

Liukang Tuppabiring is a waters with marine biodiversity potential large enough to be developed and managed sustainably. Utilization around the coral reefs in the waters of the Liukang Tuppabiring sub-district currently tends to lead to destructive use, so it is necessary to take damage prevention measures immediately. The results showed the condition of coral cover in the medium and damaged, while at stations 1,2,3,4,6 (25,47-41.07%), while conditions were good at station 5 (56.20%). The number of individual reef fish is 290 individuals from 46 species of 22 genera 11 families. At the research location also identified one type of protected biota namely Hawksbill (Eretmochelys imbricata). Coral damage that occurred at 6 observation stations was more caused by the practice of using destructive and environmentally unfriendly fishing equipment such as bombs, trawls, and the use of poisons. The priority strategies undertaken in the management of coral reefs at the study site are 1) Management of environmentally friendly coral reefs where the community as a manager with strong support from the Government; 2) Making clear rules related to utilization in coral reef areas and establishing a POSMAKWAS institution to avoid more severe coral damage; 3) Improve supervision and law enforcement must be firm in relation to the use of fishing gear that can damage coral reef ecosystems.


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