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Ernik Yuliana
Universitas Terbuka
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Journal : HAYATI Journal of Biosciences

 1 
Reef Fish in the Mudflats of Kaledupa Island in Wakatobi National Park, Indonesia Ernik Yuliana; Adi Winata; Hasan Eldin Adimu; Yuni Tri Hewindati; Wibowo A. Djatmiko
HAYATI Journal of Biosciences Vol. 29 No. 2 (2022): March 2022
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.29.2.245-254

Abstract

Although frequently described as low-fertility or low-productivity habitat, coastal mudflats serve as important feeding grounds for fish. Many fish species from adjacent coral reefs, seagrass beds, or mangroves foraging periodically in mudflats. Because of this foraging behaviour, some local fishermen are known to utilize the mudflats to catch fish. However, the impact of this catching activities to the ecosystem has not been fully discovered. An examination of the fish community structure and levels of environmental stress had carried out in the mudflat ecosystem of the coast of Kaledupa Island in Wakatobi National Park (WNP), Indonesia. Two mudflat study sites were selected from the shore of Balasuna and Tampara villages located between mangroves and coral reefs. Data were sampled from the fish catch of local fishermen using fish fences (sero) installed in each mudflat area. Fish community structure was analyzed using diversity index and index of relative importance (IRI). ABC curves and species exploitation rate were used to assess the local environmental pressure. A total of 74 fish species were recorded from the mudflats of Kaledupa, which was found to be dominated by reef-associated fish species, comprising 63 species and accounting for 85% of the total catch. Additionally, although both sites had relatively high reef fish diversity, the obtained Clarke’s W-statistic values were approximately 0, indicating that the local fish communities presented moderate levels of disturbance. Three out of five fish species with the highest IRI values were found to be over-exploited, namely Siganus canaliculatus, Lethrinus ornatus, and Lethrinus variegatus.
Co-Authors Achmad Fahrudin Achmad Fahrudin Adhi Susilo Adi Winata Adi Winata Adibrata, Sudirman Affandi, Zulfikar Agus Arifin Sentosa Agustina, Siska Agustri, Diana Akrom, Akrom Ambarwati, Widya Ati Rahadiati Ati Rahadiati Ati Rahadiati, Ati Aufa, Safarul Benny Khairuddin Citra Kusuma, Luh Putu Ayu Savitri Deddy Ahmad Suhardi Diarsi Eka Yani Diarsi Eka Yani Eddy Supriono Eddy Supriyono Efin Muttaqin Endang Indrawati Endang Setijorini, Ludivica Enny Kusumawati Enny Kusumawati, Enny Fadila, Ila Faizal Madya Fernando Jongguran Simanjuntak Galib, Muliani Hafsaridewi, Rani Haryanto, Djeny Hasan Eldin Adimu Hernika Simanjuntak Hewindati, Yuni Tri Huda, Nurul Ida Malati Sadjati Idha Farida Jalil, Jalil Kasful Anwar Kayan Saputa Khairuddin, Benny Kukuh Nirmala Kurniawan Kurniawan Laksono Trisnantoro Lilik Sulistyowati Lina Warlina Lismining Pujiyani Astuti Ludivica Endang Setijorini, Ludivica Endang Luh Putu Ayu Savitri Citra Kusuma M Ikhsan M Mukhlis Kamal M. Ikhsan M. Mukhlis Kamal Made Sastrawan Putra, Anak Agung Mala Nurilmala Maria Niken Tri Ubaya Sakti Medea, Johanis Johniforus Meinarni Asnawi Mennofatria Boer Mila Karmila Mudzakir, Abdul Muliani Galib Naibaho, Ros Endang Ninef, Jotham S.R. Nurhasanah Nurhasanah Nurhasanah Nurhasanah Nurhasanah Obed Lepa Saba Kulla Pepi Rospina Pertiwi Perangin-angin, Robet Rani Hafsaridewi Refri Yendri Rusdiyanto, Edi Sadjati, Ida Malati Sadjati, Ida Malati SATRIYAS ILYAS Selamet, Mohammad Adi Sinar Pagi Sektiana Soemarjati, Wiwie Sofiati Sofiati Sri Harijati, Sri Suparti Suparti Suparti Suroyo Suroyo Uyunun Uyunun Wibowo A. Djatmiko Wiharso Yoyo Wiramiharja Yundari, Yundari Yuni Tri Hewindati