Reef fish structure and cascading effects in response to artisanal fishing pressure

Campbell, Stuart J.; Pardede, Shinta

doi:10.1016/j.fishres.2005.12.015

Cited by 71 publications

(54 citation statements)

References 20 publications

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“…Most trophodynamic studies of coral reefs come from the Caribbean and Great Barrier Reef, which cover large spatial scales and latitudinal gradients. While biogeographic variability is constantly acknowledged, publications link conservation concern to broad topics such as management zones irrespective of reef variability or geographic position Rizzari et al, 2014;Boaden and Kingsford, 2015), and perform large scale analyses based on databases that do not account for fine-scale variation (Campbell and Pardede, 2006;Graham et al, 2008;Campbell et al, 2011;Barneche et al, 2014;Alonso et al, 2015;Aguilar-Medrano and Barber, 2016). While management zones are important to understanding human disturbance, many studies exploring fishing effects lack historical baselines, movement data, and diet relative to changing diversity and community structure (Greenwood et al, 2010;Edgar et al, 2011).…”

Section: Accounting For Variation In Studiesmentioning

confidence: 99%

Trophodynamics as a Tool for Understanding Coral Reef Ecosystems

et al. 2018

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The increased frequency of publications concerning trophic ecology of coral reefs suggests a degree of interest in the role species and functional groups play in energy flow within these systems. Coral reef ecosystems are particularly complex, however, and assignment of trophic positions requires precise knowledge of mechanisms driving food webs and population dynamics. Competent analytical tools and empirical analysis are integral to defining ecosystem processes and avoiding misinterpretation of results. Here we examine the contribution of trophodynamics to informing ecological roles and understanding of coral reef ecology. Applied trophic studies of coral reefs were used to identify recent trends in methodology and analysis. Although research is increasing, clear definitions and scaling of studies is lacking. Trophodynamic studies will require more precise spatial and temporal data collection and analysis using multiple methods to fully explore the complex interactions within coral reef ecosystems.

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Section: Accounting For Variation In Studiesmentioning

confidence: 99%

Trophodynamics as a Tool for Understanding Coral Reef Ecosystems

et al. 2018

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“…Ikan karang di TNKJ merupakan salah satu faktor terpenting dari ekosistem terumbu karang yang dimanfaatkan oleh penduduk setempat, karena sebagian besar penduduk Karimunjawa (65,88%) dapat mengandalkan sumber daya ikan sebagai mata pencaharian dan sumber makanan utama (Campbell and Pardede, 2006). Jumlah jenis ikan di terumbu karang yang teridentifikasi sebanyak 412 jenis, berasal dari 44 famili dan 146 genus (Muttaqin et al, 2013).…”

Section: Pendahuluanunclassified

“…Faktorfaktor fisik yang mempengaruhi pertumbuhan terumbu karang juga berpengaruh besar terhadap struktur komunitas dan bentuk hidup terumbu karang (Aldyza et al, 2015). Kedalaman maksimum perairan Karimunjawa adalah 50 m (Campbell and Pardede, 2006), dan terumbu karang hidup pada perairan di sekitar pulau pada kedalaman < 50 m. Kondisi fisika dan kimia perairan TNKJ disajikan pada Tabel 2.…”

Section: Tutupan Karangunclassified

“…Distribusi ikan karang berhubungan dengan karakteristik habitat dan interaksi ikan-ikan tersebut (Campbell and Pardede, 2006 (BTNKJ, 2010;2013). Kelompok ikan Pomacentridae berukuran kecil, memiliki warna yang sangat menarik sehingga sering dijadikan ikan hias pada akuarium.…”

Section: Kelimpahan Ikanunclassified

“…Gosong Seloka 2 dan Pantai Nirwana adalah zona tradisional perikanan yang sangat dekat dengan permukiman warga, diduga mempunyai intensitas tekanan perikanan yang tinggi. Hal ini sesuai dengan hasil penelitian Campbell and Pardede (2006) Secara umum, famili ikan karang mengalami peningkatan biomassa dari tahun 2010-2013, kecuali famili Siganidae dan Serranidae. Diperlukan pembentukan kelembagaan terpadu (Irnawati et al, 2012) untuk mengawasi biomassa ikan karang target, termasuk famili Siganidae dan Serranidae.…”

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Biodiversity of Reef Fishes in Marine Protected Area of Karimunjawa National Park

Yuliana

Boer

Fahrudin

et al. 2017

J. Ilmu dan Teknologi Kelautan Tropis

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Karimunjawa National Park (KNP) has a high diversity of coral reef and fish. This study is aimed to analyze the biodiversity of reef fish in KNP. Field survey was conducted in KNP, District of Jepara, Central Java, in April-Juni 2015Keywords: biodiversity, reef fish, Karimunjawa, marine protected area ABSTRAK Taman Nasional Karimunjawa (TNKJ) mempunyai keanekaragaman terumbu karang dan ikan yang tinggi. Tujuan studi ini adalah menganalisis kesehatan habitat dan biodiversitas ikan karang di TNKJ. Penelitian dilakukan di TNKJ Kabupaten Jepara, Jawa Tengah, pada April-Juni 2015. Pengumpulan data menggunakan metode survei dan observasi. Data primer yang dikumpulkan adalah jumlah individu ikan karang per famili, persentase tutupan karang, kekeruhan, kadar nitrogen (N) total dan PO4. Data sekunder didapatkan dari Balai TNKJ. Penghitungan jumlah individu ikan karang menggunakan belt transect dan pengukuran tutupan karang menggunakan metode line intercept transect (LIT). Biodiversitas ikan karang diukur melalui indikator kelimpahan dan biomassa ikan. Hasil penelitian menunjukkan bahwa rata-rata tutupan karang pada tahun 2015 adalah 44,70%. Tutupan karang tertinggi adalah di Taka Malang (zona inti TNKJ) 65,65% dan yang terendah adalah di Nirwana (zona tradisional perikanan) yaitu 35,45%. Kelimpahan ikan pada tahun 2015 didominasi oleh Pomacentridae (60,46%) dengan kelimpahan 14.850 ind/ha, kedua adalah Caesionidae (11,77%) dengan kelimpahan 2.892 ind/ha, ketiga adalah Scaridae (6,27%) dengan kelimpahan 1.540 ind/ha. Biomassa tertinggi tahun 2015 dimiliki oleh Scaridae (122,33 kg/ha), urutan kedua adalah Caesionidae (104,91 kg/ha), dan urutan ketiga adalah Serranidae (50,80 kg/ha). Biodiversitas ikan karang di TNKJ terjaga baik, karena familifamili yang menjadi target utama tangkapan nelayan memiliki kelimpahan dan biomassa yang tinggi.Kata kunci: biodiversitas, ikan karang, Karimunjawa, kawasan konservasi

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Changes in a coral reef fishery along a gradient of fishing pressure in an Indonesian marine protected area

Campbell

Mukminin

Kartawijaya

et al. 2013

Aquatic Conservation

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Human population growth, rising incomes, and increased commercialization of marine resources promote demand for reef fish, yet few studies in Indonesia have examined how artisanal fisheries are influenced by the socio‐cultural conditions that contribute to their exploitation. This study examined artisanal fisheries of Karimunjawa National Park, Java, to understand how the condition of an artisanal fishery was related to socio‐cultural factors, along a gradient in fishing pressure. A total of 8674 fishes landed in Karimunjawa by fishers using four artisanal fishing gears were examined to understand how the condition of the artisanal fishery (standard and infinite fish length, trophic level and weight) related to fishing gear use, village fishing grounds, management, human population size, human population density and estimated fishing pressure. Depletion in fish lengths and trophic structure were found at or above 46 fishing trips day‐1 km‐2, suggesting that fishing pressure is a key factor driving fishery catch structure. When catch characteristics were examined in relation to the fishing pressure estimates from each village, negative correlations were found between inshore fishing pressure (no. trips day‐1 km‐2) and all four fish catch characteristics, but owing to small sample sizes (n = 5), only the effects on trophic level were significant. Fishery closures had limited impact on fish characteristics, and lack of any effect of spatial controls on fishing also supports the notion that fishing pressure and the types of fishing gears used, most likely driven by human population densities, are the greatest drivers of reef fish catch characteristics in the Karimunjawa fishery. In the absence of support for fishery closures from local fishing communities or adequate enforcement of fishery closures, targeted gear or species management strategies that limit impacts on large‐bodied fish and aim to conserve key species may be more effective in improving the size and trophic structure of fish populations. Copyright © 2013 John Wiley & Sons, Ltd.

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Reef fish structure and cascading effects in response to artisanal fishing pressure

Cited by 71 publications

References 20 publications

Trophodynamics as a Tool for Understanding Coral Reef Ecosystems

Trophodynamics as a Tool for Understanding Coral Reef Ecosystems

Biodiversity of Reef Fishes in Marine Protected Area of Karimunjawa National Park

Changes in a coral reef fishery along a gradient of fishing pressure in an Indonesian marine protected area

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