A biodiversity assessment of hard corals in dive spots within Dampier Straits Marine Protected Area in Raja Ampat, West Papua, Indonesia

Yuanike, Yuanike; Yulianda, Fredinan; Bengen, Dietriech G.; Dahuri, Rokhmin; Souhoka, Jemmy

doi:10.13057/biodiv/d200436

Cited by 6 publications

(8 citation statements)

References 7 publications

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“…The highest average of dead coral with algae found in Rendani coastal is comparable with the average of dead corals in the Jayapura, Papua (Paluangan et al, 2019); i.e., 8.67%. However, the mean value is lower than that found in several other coral reef ecosystems in Papuan, i.e., Pasir Putih waters, Dampier strait, Mansinam island, and Lemon Island (Thoviyan et al, 2017;Yuanike et al, 2019;Dasmasela et al, 2019;Sitanala et al, 2021).…”

Section: Condition Of Coral Reef Ecosystemmentioning

confidence: 69%

Variations and Condition of Coral Lifeforms in the Coastal Area of Rendani Airport, Manokwari, Indonesia

Wanma

Manan

Loinenak

et al. 2022

JSAI

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Coral reefs are unique ecosystems and only occur in the tropics area. Diversity, distribution, and coral growth are influenced by environmental factors. Coral colonies morphologies or coral lifeform rates vary significantly between species and between environmental factors. This study aimed to determine the variations of hard coral based on their lifeform; and assess the condition of reefs by measuring the percent cover of live coral in the coastal area of Rendani Airport. Coral cover and coral damage data gathering used a survey approach with Point Intercept Transect (PIT) method. The results showed the variations of coral lifeform in the coastal area of Rendani was relatively low, as indicated by the absence of some coral lifeforms in the study site. The most variation lifeform was found at 7m depth with five lifeforms, while the lowest was found at 3m depth with three lifeforms. The live coral cover reached 77,66% at station 1 and 75,00% at station 2, and the lowest coverage was 11,33% at station 3. The highest average of rubble at station 1 at 4.33% and dead coral with algae was found to be highest at station 3 at 8.00%.

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Section: Condition Of Coral Reef Ecosystemmentioning

confidence: 69%

Variations and Condition of Coral Lifeforms in the Coastal Area of Rendani Airport, Manokwari, Indonesia

Wanma

Manan

Loinenak

et al. 2022

JSAI

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“…Raja Ampat, famous for its high diversity, is recorded to have 456 coral species, 699 mollusk species, and 828 reef fish species [9]. Furthermore, [10] reported that the number of coral species in the Dampier Strait was 141 from 16 families. Live coral cover grouped in good condition (64.24%).…”

Section: Discussionmentioning

confidence: 99%

The abundance of coral diseases and compromise health in marine protected areas on Dampier waters, Raja Ampat

Johan

Idris

2023

IOP Conf. Ser.: Earth Environ. Sci.

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The extent of coral reefs, coral biodiversity, and associated biota are known as high mega biodiversity in Indonesian waters, in other words, The Coral Triangle. Threats of coral damage have also been widely reported, including deaths due to natural factors. Coral disease is a natural factor that is not widely known for its existence around Indonesian waters. This study was conducted to obtain the abundance of coral disease by using a belt transect method of 20 m long with a width of 50 cm to the left and right of the transect line, then carried out three replications at ten observation stations in Dampier waters, Raja Ampat. The study obtained data on the abundance of coral diseases that infect eight coral genera ranging from 0-23 col/60 m2, the highest station at station 8 (23 col/60 m2). There were six types of coral disease found in the Dampier Strait MPA, including WS, BrBD, FB, AtN, Bleaching, and Tumor. The highest abundance was found in WS disease (65 col/60m2). Coral health confounding factors were found in 336 colonies with abundance at different stations ranging from 14 – 97 col/60 m2. The highest abundance was found at station 5 (97 col/60 m2), a high stressor due to being located at sub-zona Sasi and traditional use. The existence of the disease is not classified as an outbreak. However, it is necessary to be careful if there is an increase in the number of new infection cases in the exact location or other places in Indonesia.

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“…Meanwhile, during research observation, the team did not succeed in sampling in East Sumur Island. Because the east side of the island well is in shallow condition due to activities from the mainland, based on Krebs (1972) criteria and Yuanike et al (2019) 0 ˂ E ≤ 0.50: stressed community, 0.50 ˂ E ≤ 0.75: unstable community and 0.75 ˂ E ≤ 1.50: stable community.…”

Section: Ecological Index Of Reef Fishmentioning

confidence: 99%

“…Mardasin et al (2011) also explained that the value of the dominance index range, namely if the value of Di = 0 means that the level of similarity is low and if Di = 1 means that of agreement (Ludwig and Reynolds 1988). Arifin et al (2018) and Yuanike et al (2019) explained that Dominance Index (D) describes the presence or absence of dominant species. The calculation results showed that the dominance value was closer to 0 (zero) than 1 (one), which was in the range of 0.03 to 0.09.…”

Section: Ecological Index Of Reef Fishmentioning

confidence: 99%

Reef fish community structure in the islands of Paraja Bay, Pandeglang District, Banten, Indonesia

et al. 2021

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Abstract. Mujiyanto, Sugianti Y, Afandy YA, Rahayu R, Bidikusuma RA, Nasriri AS, Syam AR, Purnaningtyas SE. 2021. Reef fish community structure in the islands of Paraja Bay, Pandeglang District, Banten, Indonesia. Biodiversitas 22: 4402-4413. Paraja Bay waters have five small islands that coexist with Ujung Kulon National Marine Park and act as a buffer zone for the diversity of fishery resources. This study aimed to assess the reef fishes community structure at small islands in Paraja Bay. Observations were made in 20 locations during August and September 2019 in the five small islands. Reef fishes community structure showed 106 species as included major group (54 species), indicator group (24 species) and target group (28 species), among five small islands, i.e. Badul, Mangir, Oar, Sumur and Umang Islands. The highest reef fishes abundance was founded in Umang Island waters. Several target fish species recorded during the study were mature fish (such as those targeted by fishermen). Only a small proportion were juveniles. Reef fish community structure was categorized as stress community to stable community with its indication was low diversity value, high evenness index, and low dominance. The low diversity index value illustrates that the level of uniformity of reef fish species in Paraja Bay waters is high. This condition is evidenced by each coral fish group's evenness index included in the main species group around 0.93 to 0.98. The target species is 0.88 to 0.99.

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A biodiversity assessment of hard corals in dive spots within Dampier Straits Marine Protected Area in Raja Ampat, West Papua, Indonesia

Cited by 6 publications

References 7 publications

Variations and Condition of Coral Lifeforms in the Coastal Area of Rendani Airport, Manokwari, Indonesia

Variations and Condition of Coral Lifeforms in the Coastal Area of Rendani Airport, Manokwari, Indonesia

The abundance of coral diseases and compromise health in marine protected areas on Dampier waters, Raja Ampat

Reef fish community structure in the islands of Paraja Bay, Pandeglang District, Banten, Indonesia

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