Coral reef ecosystems condition prediction after tsunami based on previous reef fish community structure and benthic coverage surveillance on Sumur, Banten

Abstract Coral reef fish populations are declining due to multiple factors including habitat destruction, overfishing, and climate change. While these can include seasonal impact, seasonal changes can also be a confounding factor, so that seasonal monitoring is essential for detecting true temporal changes in fish community abundance and composition. However, seasonal monitoring is rarely implemented. The aim of this study was to detect the seasonal patterns of coral reef fish community structure around Tidung Kecil Island, Indonesia, using eDNA metabarcoding (eDNA) and underwater visual census (UVC). The UVC identified 32 species belonging to 10 families in the rainy season and 29 species belonging to 7 families in the dry seasons. The eDNA metabarcoding identified 209 species belonging to 56 families and 27 species belonging to 17 families in the rainy and dry seasons, respectively. Based on eDNA metabarcoding data, coral reef fish abundance and community composition differed significantly between seasons (Mann Whitney, p<0.01), while the UVC method did not detect these seasonal differences (Mann Whitney, p>0.05). UVC and eDNA data both showed a predominance of omnivorous fishes in the rainy season and carnivorous fishes in the dry season. Ecological indices did not differ significantly between seasons for either method, although the species making the highest contributions to the similarity (SIMPER) analysis differed between methods. Overall, this study confirms the premise that eDNA metabarcoding can be an effective tool for monitoring seasonal variation in coral reef fish communities.

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KOMUNITAS IKAN KARANG DI PERAIRAN TAMAN WISATA ALAM (TWA) BATUANGUS, KOTAMADYA BITUNG, PROVINSI SULAWESI UTARA

Jurnal Kelautan Indonesian Journal of Marine Science and Technology ◽

10.21107/jk.v9i1.1032 ◽

2016 ◽

Vol 9 (1) ◽

pp. 50

Author(s):

Fakhrizal Setiawan

Keyword(s):

Community Structure ◽

Reef Fish ◽

Fish Community ◽

Coral Cover ◽

Live Coral ◽

Fish Community Structure ◽

Coral Genus ◽

North Sulawesi ◽

Reef Fish Community ◽

Coral Reef Ecosystems

REEF FISH COMMUNITY IN THE BATUANGUS NATURE PARK, MUNICIPALITY OF BITUNG, NORTH SULAWESI PROVINCEResearch was conducted at 4 point dive sites in TWA Batuangus and 1 tourist sites as a comparison site to see the condition of coral reef ecosystems that include coral cover and reef fish communities’ information. Live coral cover obtained generally show in moderate category (25 to 49.9%). Coral genus recorded in 33 transects genus were 27 genera of hard corals and 6 genus of soft corals. Reef fish recorded consists of 195 species of reef fish and 37 families. Locations in the TWA Batuangus which have relatively good conditions, is Batu Beach location where had higher abundance and biomass compared to other locations. Magic Rock seen better than that of TWA Batuangus, based from the condition of coral and targeted fish. This is most likely because the location of TWA Batuangus is the fishing area for the surrounding communities while Magic Rock is became one of the important diving spot in the Lembeh Strait. Reef fish community structure based on ecological indices are in unstable condition (H' were in low to moderate, E were depressed until labile and C were low). The similarity of reef fish species grouping Hall Batuangus separated with other sites because of the characteristics of the location in the form of semi-enclosed bays where the circulation of currents which do not enter into the bay which makes limiting the distribution of coral and fish.Keywords: abundance, biomass, Batuangus, reef fish community structure, wildlife nature. ABSTRAKPenelitian sebanyak 4 titik penyelaman di TWA Batuangus dan 1 lokasi wisata sebagai pembanding dilakukan untuk melihat kondisi ekosistem terumbu karang yang meliputi informasi tutupan karang dan komunitas ikan karang. Tutupan karang hidup yang didapatkan menunjukkan umumnya berada pada kategori sedang (25–49,9 %). Genus karang yang tercatat masuk di dalam transek sebanyak 33 genus yang terdiri dari 27 genus karang keras dan 6 genus karang lunak. Ikan karang yang dicatat/ditemukan dalam survei derah dangkal ini terdiri dari 195 species ikan karang yang termasuk dalam 37 famili. Lokasi di dalam TWA Batuangus yang memiliki kondisi relatif baik yaitu di lokasi Pantai Batu dimana memiliki kelimpahan dan biomassa terbaik dibanding lokasi lainnya. Lokasi pembanding Magic Rock sedikit lebih baik daripada TWA Batuangus, jika dilihat dari kondisi karang serta ikan target. Hal ini kemungkinan karena lokasi TWA Batuangus menjadi daerah penangkapan ikan bagi masyarakat sekitar, sedangkan Magic Rock yang menjadi salah satu spot penyelaman penting di Selat Lembeh. Struktur komunitas ikan karang berdasarkan indeks ekologinya berada dalam kondisi labil (H’ masuk rendah hingga sedang, E tertekan hingga labil dan C yang rendah). Kesamaan species ikan karang mengelompokkan site Hall Batuangus terpisah dengan site lainnya karena karakteristik lokasi yang berupa teluk semi tertutup dimana sirkulasi arus yang tidak masuk kedalam teluk yang menjadikan pembatas distribusi karang dan ikan yang ada di dalamnya. Kata kunci: biomassa, Batuangus, kelimpahan, struktur komunitas ikan karang, Taman Wisata Alam.

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Long-term spatiotemporal variations in coral-reef fish community structure and fishing at a South Pacific atoll

Aquatic Living Resources ◽

10.1051/alr/2009037 ◽

2009 ◽

Vol 22 (3) ◽

pp. 281-290 ◽

Cited By ~ 3

Author(s):

Thierry Lison de Loma ◽

Pascale Chabanet ◽

Jocelyne Ferraris ◽

René Galzin ◽

Mireille Harmelin-Vivien

Keyword(s):

Community Structure ◽

Coral Reef ◽

Reef Fish ◽

Coral Reef Fish ◽

Fish Community ◽

South Pacific ◽

Fish Community Structure ◽

Spatiotemporal Variations ◽

Reef Fish Community

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Reef fish community structure on coastal islands of the southeastern Brazil: the influence of exposure and benthic cover

Environmental Biology of Fishes ◽

10.1007/s10641-006-9084-6 ◽

2006 ◽

Vol 78 (2) ◽

pp. 147-160 ◽

Cited By ~ 110

Author(s):

Sergio R. Floeter ◽

Werther Krohling ◽

João Luiz Gasparini ◽

Carlos E. L. Ferreira ◽

Ilana R. Zalmon

Keyword(s):

Community Structure ◽

Reef Fish ◽

Fish Community ◽

Southeastern Brazil ◽

Fish Community Structure ◽

Reef Fish Community

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Reef-fish community structure and dynamics:an interaction between local and larger-scale processes?

Marine Ecology Progress Series ◽

10.3354/meps129019 ◽

1995 ◽

Vol 129 ◽

pp. 19-29 ◽

Cited By ~ 13

Author(s):

MJ Caley

Keyword(s):

Community Structure ◽

Reef Fish ◽

Fish Community ◽

Fish Community Structure ◽

Reef Fish Community

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Reef fish community structure and its association with Lifeform coral in the core zone of the Anambas islands Marine Tourism Park (MTP)

International Journal of Fisheries and Aquatic Studies ◽

10.22271/fish.2021.v9.i6a.2587 ◽

2021 ◽

Vol 9 (6) ◽

pp. 59-66

Author(s):

Mohd. Adip Setiawan ◽

Neviaty P Zamani ◽

Dietriech G Bengen ◽

Syofyan Roni

Keyword(s):

Community Structure ◽

Reef Fish ◽

Fish Community ◽

Fish Community Structure ◽

Core Zone ◽

Marine Tourism ◽

The Core ◽

Reef Fish Community

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

Biodiversitas Journal of Biological Diversity ◽

10.13057/biodiv/d221033 ◽

2021 ◽

Vol 22 (10) ◽

Author(s):

MUJIYANTO MUJIYANTO ◽

YAYUK SUGIANTI ◽

YUSUF ARIEF AFANDY ◽

RISNAWATI RAHAYU ◽

R. ARIEF BUDIKUSUMA ◽

...

Keyword(s):

Community Structure ◽

Reef Fish ◽

Fish Species ◽

Fish Community ◽

Reef Fishes ◽

Small Islands ◽

Fish Community Structure ◽

Evenness Index ◽

Reef Fish Community ◽

Low Diversity

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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