Pesisir Timur Pulau Weh (PTPW) is a water natural reserve conservation area located in the eastern part of Weh Island. The condition of coral substrates in PTPW has suffered a lot of damage based on bleaching cases that have hit Sabang waters in 2016. Coral conditions can be measured by looking at the abundance of fish indicators of the Chaetodontidae group. Therefore, this study aimed to measure coral conditions and the abundance of Chaetodontidae coral fish, as well as analyze the relationship between the percentage of coral cover and the abundance of Chaetodontidae coral fish. Data of coral were collected using the Point Intercept Transect method with a length of 50 meters, while the abundance of fish used the Underwater Visual Census technique and the Belt Transect method with a length of 50 meters and a total belt width of 5 meters. The results showed that the coral conditions in PTPW were in poor to fair condition with the highest cover at The Sumur Tiga site (36.83%) and the lowest at The Ujung Kareung site (11.5%). The highest abundance of Chaetodontidae fish was found at Ujung Seuke site (1253.3 ind/ha) and the lowest was found at Anoi Itam site (186.7 ind/ha). The results of the correlation analysis between the percentage of coral cover and the abundance of Chaetodontidae coral fish showed a positive relationship (r = 0.482), but it was not significant (p>0.05), and the regression equation obtained Y = 17.16x + 166.52 with a determination coefficient of 18.3%, which indicated that the correlation between the two variables was very weak.
This study aims to determine the genus of coral and coral diseases in the coral reef ecosystem of Tuan Island Peukan Bada, Aceh Besar District. The data of coral genera were gathered by using point intercept transect method, whereas, the data of coral diseases were gathered by using survey method. The data were identified by using handbook and then analyzed descriptively. The results showed that there were 5 coral genera found in Tuan Island Pekan Bada namely: Acropora, Montipora, Pocillopora, Porites, and Goniastrea. Meanwhile, coral diseases that are found in Tuan Island were ulcerative white spots, growth anomalies of an unknown cause, sediment damage, alga overgrowth, pink line disease dan pigmentation responses. The conclusion of this study were (1) the coral reefs that were found in Tuan Island Peukan Bada, Aceh Besar District consisted of 5 genera, and (2) coral diseases in Tuan Island consisted of 6 types of diseases.
Purpose-The purpose of this paper is to know the types of mangrove and the status of the conservation of mangrove ecosystems in the area of Krueng Reuleng River, Leupung, Aceh Besar Regency. Design/Methodology/Approach-Data collection on mangroves was retrieved using a Quadrat Sampling Method, the acquisition of information about the status of conservation of mangrove ecosystems was done using the interview method. Findings-The results showed that there are four types of mangroves, and mangrove ecosystem conservation efforts have not been made by the people of Leupung. The conclusions of this study are as follows: the types of mangroves found in the area of Krueng Reuleng River are Nypa fruticans, Sonneratia alba, Acrostichum aureum, and Thespesia populnea. Conservation measures have not been undertaken to preserve the mangrove ecosystem in the area of Krueng Reuleng River. Research Limitations/Implications-The location can be used as a site of practical research on the type of mangroves in the Krueng Reuleng River area for students studying biology. Originality/Value-In addition to upgrading the data on the types of mangroves, this paper could be a reference for any relevant field.
Abstract. Aldyza N, Barus TA, Mulya MB, Sarong MA. 2022. Coral resilience inside and outside of Pesisir Timur Pulau Weh conservation zone, Sabang City, Indonesia. Biodiversitas 23: 5744-5751. Conservation is one of the efforts to conserve marine life and provide opportunities for an ecosystem to recover. One of the water areas protected by the community is Pulau Weh (Weh Island). In 2010 and 2016, coral reef ecosystems in the waters of Weh Island suffered a lot of damage due to the pressure from nature, i.e., the bleaching phenomenon. As a result, the benthic experienced a vacuum of the substrate. The emptiness of the substrate occurred due to the death of corals and the appearance of a layer of grass algae. Therefore new corals were difficult to recover without a solid and conducive substrate. Hence, this study aims to measure the resilience of corals and benthic conditions inside and outside conservation areas on Weh Island. Benthic data collection used the Point Intercept Transect method while measuring the potential resistance of corals using the resilience index through coral cover, fleshy seaweed, and rubble indicators. Benthic conditions were viewed based on the value of the results of the resilience component with the condition of the coral cover. The result showed that coral reef ecosystems inside and outside the Pesisir Timur Pulau Weh (PTPW; East Coast of Weh Island) conservation area had a high level of resilience (with scores ranging from 3 to 6, out of 6 for benthic condition scores). The benthic inside the conservation area averagely has a good score and it is likely to be in the recovery period from disturbances. While the score for the benthic outside the conservation area is only 3 (out of 6 for benthic condition scores), which indicates that the area is very vulnerable to disturbance even though it has a chance to recover. If there is another bleaching phenomenon in the future, corals that have just tried to recover in this vulnerable area may be damaged again and the coral cover will be decreased.
The study was conducted in the area of Gunung Leuser National Park Ketambe, Southeast Aceh, in January 2016. This study aimed (1) to find out the activity patterns of orangutan (Pongo abelii), and (2) to determine the dominant activities of orangutan (Pongo abelii) in Gunung Leuser National Parks Ketambe Southeast Aceh district. The data were collected by using Focal Animal Sampling Method and recording of data using One Zero Sampling Method. The research found that there were three orangutans (Pongo abelii), and the activities of orangutan (Pongo abelii) were eating 13 % , moving 4 % , sitting 21 % , standing 5 % , sleeping 0 % , looking for lice 4 % , swinging 7 %, hanging in tree 21 % , playing 0 % , feeding 25 %, breast-feeding and rolling 0 % 0 %. Based on these activities, the most dominant activity carried out by Pongo abelii in the Gunung Leuser National Park Ketambe Southeast Aceh Regency was foraging.
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