Alfi Sahri Remi Baruadi1, La Nane2

1,2Jurusan Manajemen Sumber Daya Perairan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Negeri Gorontalo. Email: lanane@ung.ac.id

 

Abstract

Bulu Babi (sea urchin) merupakan salah satu produk perikanan penting yang telurnya dapat dikonsumsi baik dalam keadaan segar maupun olahan. Sayangnya Bulu Babi belum dimanfaatkan karena dianggap beracun dan bila dikonsumsi dapat menimbulkan kematian. Karena itu, perlu dilakukan edukasi pada masyarakat melalui kegiatan penyuluhan bagaimana cara mengonsumsi dan membudidayakan Bulu Babi dengan sistem keramba jaring apung. Kegiatan ini dilaksanakan di desa Lambangan, kecamatan Pagimana, Sulawesi Tengah selama dua bulan (Februari 2020–Maret 2020 dengan melibatkan 25 masyarakat nelayan dan 30 mahasiswa Universitas Negeri Gorontalo sebagai pendamping masyarakat. Hasil dari kegiatan penyuluhan dan simulasi yang kami laksanakan telah mengubah paradigma masyarakat yang tadinya menganggap Bulu Babi sebagai biota laut beracun menjadi sesuatu yang dapat dikonsumsi dan dapat diperjualbelikan di pasar-pasar lokal. Selain itu, masyarakat juga telah menguasai dan mampu menerapkan konstruksi keramba budi daya Bulu Babi yang dilaksanakan melalui metode praktik simulasi pembuatan keramba jaring apung.

 

Keywords

Bulu Babi; Penyuluhan; Keramba Jaring Apung

 

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References

Bertocci, I., Blanco, A., Franco, J. N., Fernández-Boo, S., & Arenas, F. (2018). Short-term variation of abundance of the purple sea urchin, Paracentrotus lividus (Lamarck, 1816), subject to harvesting in northern Portugal. Marine Envi-ronmental Research, 141, 247–254. https://doi.org/10.1016/j.marenvres.2018.09.017

Ding, J., Zheng, D., Sun, J., Hu, F., Yu, Y., Zhao, C., & Chang, Y. (2020). Effects of water temperature on survival, behaviors and growth of the sea urchin Mesocentrotus nu-dus: New insights into the stock enhancement. Aquaculture, 519, 734873. https://doi.org/10.1016/j.aquaculture.2019.734873

FAO. (2016). Global production statistics 1950–2014. Available at: http://www.fao.org/figis/servlet/TabSelector.

González-Irusta, J. M., González-Porto, M., Sarralde, R., Arrese, B., Almón, B., & Martín-Sosa, P. (2015). Comparing species distribution models: A case study of four deep sea urchin species. Hydrobiologia, 745(1), 43–57. https://doi.org/10.1007/s10750-014-2090-3

Hadinoto, S., Sukaryono, I. D., & Siahay, Y. (2017). Kandungan gizi gonad dan aktifitas antibakteri ekstrak cangkang Bulu Babi (Diadema se-tosum). Jurnal Pascapanen Dan Bioteknologi Kelautan Dan Peri-kanan, 12(1). https://doi.org/10.15578/jpbkp.v12i1.281

Lafarizi, A. (2020). Struktur Populasi Anggota Kelas Bulu Babi (Echi-noidea) di Zona Intertidal Pantai Batu Lawang Taman Nasional Alas Purwo. Repository Unej. https://repository.unej.ac.id/handle/123456789/82593

Ling, S. D., Barrett, N. S., & Edgar, G. J. (2018). Facilitation of Australia’s southernmost reef-building coral by sea urchin herbivory. Coral Reefs, 37(4), 1053–1073. https://doi.org/10.1007/s00338-018-1728-4

Ling, S. D., Scheibling, R. E., Rassweiler, A., Johnson, C. R., Shears, N., Connell, S. D., Salomon, A. K., Norderhaug, K. M., Pérez-Matus, A., Hernández, J. C., Clemente, S., Blamey, L. K., Hereu, B., Ballesteros, E., Sala, E., Garrabou, J., Cebrian, E., Zabala, M., Fujita, D., & Johnson, L. E. (2015). Global regime shift dynamics of catastrophic sea urchin overgrazing. Philosophical Transactions of the Royal Society B: Biological Sciences, 370(1659), 20130269. https://doi.org/10.1098/rstb.2013.0269

Nane, L. (2019a). Efisiensi Mesin Teknologi Sapurata Dalam Men-goptimalisasi Produksi Inovasi Pangan Kukure Di Pulau Barrang Lompo, Makassar. https://doi.org/10.31230/osf.io/q8spg

Nane, L. (2019b). Studi Keberlanjutan Perikanan Landak Laut Berdasar-kan Dimensi Biologi, Ekologi Dan Teknologi Di Sekitar Pulau Tolan-dono Dan Pulausawa Kawasan Konservasi Wakatobi [Skripsi, Universitas Hasanuddin]. https://Marxiv.Org/9zdvr/

Nane, L. (2020). Pemanfaatan Telur Landak Laut Diadema setosum di Pulau Taliabu, Maluku Utara, In-donesia. https://doi.org/10.31219/osf.io/kmtuv

Nane, L., Baruadi, A. S. R., & Mardin, H. (2020). Density of the blue-black urchin Echinotrix diadema (Linnaeus, 1758) in Tomini Bay, Indonesia. Tomini Journal of Aquatic Science, 1(1), 16–21. https://doi.org/10.37905/tjas.v1i1.5939

Nane, L., & Paramata, A. R. (2020). Im-pact of Overfishing on Density and Test-Diameter Size of the Sea Ur-chin Tripneustes gratilla at Wa-katobi Archipelago, South-Eastern Sulawesi, Indonesia. ILMU KELAUTAN: Indonesian Journal of Marine Sciences, 25(2), 53–56. https://doi.org/10.14710/ik.ijms.25.2.53-56

Parvez, M. S., Rahman, M. A., & Yusoff, F. M. (2016). Sea Urchin Fisheries in Malaysia: Status, Potentials and Benefits. International Journal of Chemical, Environmental & Bio-logical Sciences (IJCEBS), 4(1), 64–66.

Ristanto, A., Yanti, A. H., & Setyawati, T. R. (2018). Sea Urchin (Echinoi-dea) Distribution and Abundance in the Intertidal Zone of Bengkayang Regency. Biosaintifika: Journal of Biology & Biology Education, 10(1), 32–40. https://doi.org/10.15294/biosaintifika.v10i1.9763

Rubilar, T., Epherra, L., Deias-Spreng, J., Vivar, M. E. D. D., Avaro, M., Lawrence, A. L., & Lawrence, J. M. (2016). Ingestion, Absorption and Assimilation Efficiencies, and Production in the Sea Urchin Arba-cia dufresnii Fed a Formulated Feed. Journal of Shellfish Research, 35(4), 1083–1093. https://doi.org/10.2983/035.035.0431

Santos-Ferreira, N., Mesquita, J. R., Rivadulla, E., Inácio, Â. S., Nasci-mento, M. S. J., Romalde, J., & Martins da Costa, P. (2020). No-rovirus contamination of sea urchins (Paracentrotus lividus): Potential food risk for consumers. Food Control, 111, 107041. https://doi.org/10.1016/j.foodcont.2019.107041

Saucède, T., Díaz, A., Pierrat, B., Sel-lanes, J., David, B., Féral, J.-P., & Poulin, E. (2015). The phylogenetic position and taxonomic status of Sterechinus bernasconiae Larrain, 1975 (Echinodermata, Echinoidea), an enigmatic Chilean sea urchin. Polar Biology, 38(8), 1223–1237. https://doi.org/10.1007/s00300-015-1689-9

Sharp, W. C., Delgado, G. A., Hart, J. E., & Hunt, J. H. (2018). Comparing the behavior and morphology of wild-collected and hatchery-propagated long-spined urchins ( Diadema antillarum ): Implications for coral reef ecosystem restoration. Bulletin of Marine Science, 94(1), 103–122. https://doi.org/10.5343/bms.2017.1068

Sulistiawan, R., Solichin, A., & Rahman, A. (2019). The Correlation of Seagrass Density with Abundance of Sea Urchins (Echinoidea) in Pancuran Beach Karimunjawa Na-tional Park, Jepara. Journal of Marquares, 8(1), 28–36.

Suriani, S., Latumahina, B. M., Hitalessy, R. B., & Eddy, L. (2020). Hub-ungan Populasi Makroalga (Padina sp) dengan Bulu Babi (Tripneustes gratilla) di Perairan Pantai Desa Ti-tawaai Kabupaten Maluku Tengah. Jurnal Riset Perikanan dan Kelau-tan, 2(1), 165–175.

Suskiewicz, T. S., & Johnson, L. E. (2017). Consumption rates of a key marine herbivore: A review of the extrinsic and intrinsic control of feeding in the green sea urchin. Marine Biology, 164(6), 131. https://doi.org/10.1007/s00227-017-3159-0

Takagi, S., Murata, Y., Inomata, E., En-do, H., Aoki, M. N., & Agatsuma, Y. (2018a). Dietary Effect of Kelp (Saccharina japonica) on Gonad Quantity and Quality in Sea Ur-chins ( Mesocentrotus nudus ) Col-lected from a Barren Before the Fishing Season. Journal of Shellfish Research, 37(3), 659–669. https://doi.org/10.2983/035.037.0318

Vizzini, S., Visconti, G., Vaccaro, A., & Mazzola, A. (2018). Experimental rearing of the sea urchin Paracen-trotus lividus fed with discards of the lettuce Lactuca sativa in a sea-based system. Aquaculture Re-search, 49(2), 631–636. https://doi.org/10.1111/are.13492

Volpe, M. G., Fabbrocini, A., Siano, F., Coccia, E., Scordella, G., Licchelli, C., De Sio, F., & Paolucci, M. (2018). Gonad quality of sea urchin Paracentrotus lividus cultured in an offshore pilot-scale trial on the south-east Italian coast. Aquacul-ture Nutrition, 24(5), 1444–1455.

La Nane

Jurusan Manajemen Sumber Daya Perairan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Negeri Gorontalo. Email: lanane@ung.ac.id

 

Abstract

Landak laut Diadema setosum merupakan salah satu biota laut ekonomis dan dikonsumsi secara luas di Pulau Taliabu, Kabupaten Taliabu, Maluku Utara. Telur landak laut Diadema setosum ini telah secara luas dikonsumsi terutama secara segar (mentah) maupun olahan berupa kukure. Pemanfaatan telur landak laut D. setosum di Pulau Taliabu masih dilakukan secara rekreasi dan tradisional dengan menggunakan alat tangkap seadanya seperti parang dan karinda. Penggunaan alat tangkap ini masih digunakan sampai sekarang, karena dianggap lebih efektif. Meskipun penangkapan telur landak laut D. setosum sudah dilakukan sejak lama. Namun, sumber daya landak laut D. setosum masih melimpah dan tidak mengalami overfishing.

 

Keywords

Landak Laut; Diadema setosum; Pulau Talaibu; Indonesia.

 

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References

Nane, L. (2019a). Efisiensi Mesin Teknologi Sapurata Dalam Mengoptimalisasi Produksi Inovasi Pangan Kukure Di Pulau Barrang Lompo, Makassar. https://doi.org/10.31230/osf.io/q8spg

Nane, L. (2019b). Impact of overfishing on density and test-diameter size of the sea urchin Tripneustes gratilla at Wakatobi Archipelago, south-eastern Sulawesi, Indonesia. BioRxiv, 727271. https://www.biorxiv.org/content/10.1101/727271v1

Nane, L. (2019c). Sea Urchin Sustainability Studies Based on Dimension Biology, Ecology and Technology at Around of Tolandono Island and Sawa Island at Wakatobi Conservation Area. https://doi.org/10.31230/osf.io/4whz6

Nane, L. (2019d). Studi Keberlanjutan Perikanan Landak Laut Berdasarkan Dimensi Biologi, Ekologi Dan Teknologi Di Sekitar Pulau Tolandono Dan Pulausawa Kawasan Konservasiwakatobi [Skripsi, Universitas Hasanuddin]. https://Marxiv.Org/9zdvr/

Nane, L., & Paramata, A. R. (2020). Impact of Overfishing on Density and Test-Diameter Size of the Sea Urchin Tripneustes gratilla at Wakatobi Archipelago, South-Eastern Sulawesi, Indonesia. ILMU KELAUTAN: Indonesian Journal of Marine Sciences, 25(2), 53-56. https://doi.org/10.14710/ik.ijms.25.2.53-56

Nane, L., Baruadi, A. S. R., & Mardin, H. (2020). The density of the blue-black urchin Echinotrix diadema (Linnaeus, 1758) in TominiBay, Indonesia. Tomini Journal of Aquatic Science, 1(1), 16–21. https://doi.org/10.37905/tjas.v1i1.5939

La Nane*, and Arfiani Rizki Paramata

Department of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, Universitas Negeri Gorontalo. *Email: lanane@ung.ac.id

 

Abstract

Sea urchin Tripneustes gratilla is one of an economically important fisheries resource product for localities at Wakatobi archipelago. High demands for sea urchin gonad have intensified high fishing activity. The hypothesis of this study is that sea urchins in Wakatobi have been overfished. To answer that hypothesis, the density and its test diameter size were measured at two different sites. Those two sites are Pulau Tomia (resident area) and Pulau Sawa (nonresident area and very distant from the localities). The results show that sea urchin density and its test diameter are significantly different. The densities (mean±SE) T. gratilla at Pulau Sawa and Pulau Tomia were 10±0.6 (ind.m-2) and 2.7±0.9 ind.m-2, respectively. Moreover, the test diameter at Pulau Sawa and Pulau Tomia were 69.7±2.1 mm and 58.5±1.7 mm (mean±SE), respectively. These results have shown that overfishing has occurred. Therefore, sea urchin with test diameter 66–75 mm, 76–85 mm, and 86–95 mm have disappeared at Pulau Tomia. The Conclusion reveals that fishing of sea urchin Tripneustes gratilla at Pulau Tomia has been overfished.

Keywords

Density; test diameter; sea urchin; overfishing; Wakatobi

 

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References

Andrew, N.L., Agatsuma, Y., Ballesteros, E., Bazhin, A.G., Creaser, E.P., Barnes, D.K., Botsford, L.W., Bradbury, A., Campbell, A., Dixon, J.D. & Einarsson, S. 2002. Status and management of world sea urchin ?sheries. Oceanog. Mar. Biol. Annual Rev. 40: 351–438. doi:10.1201/9780203180594-26

Baião, L.F., Rocha, F., Costa, M., Sá, T., Oliveira, A., Maia, M.R. & Valente, L.M. 2019. Effect of protein and lipid levels in diets for adult sea urchin Paracentrotus lividus (Lamarck,1816). Aquaculture, 506:127–138. doi: 10.1016/j.aquaculture.2019.03.005

Bronstein, O. & Loya, Y. 2014. Echinoid community structure and rates of herbivory and bioerosion on exposed and sheltered reefs. J. Exp. Mar. Biol. Ecol., 456: 8–17. doi: 10.1016/j.jembe.2014.03.003

Brown, P.N. & Eddy, E.S. 2015. Echinoderm aquaculture. Wiley Blackwell, Hoboken. doi: 10.1002/9781119005810

Kato, S. 1972. Sea urchins: A new fishery develops in California. Mar. Fish. Rev., 34: 9–10.

Keesing, J.K. & Hall, K.C. 1998. Urchin aquaculture: molecules to market- Review of harvests and status of world sea urchin fisheries points to opportunities for aquaculture. J. Shellfish Res., 17: 1597–1608.

Koike, I., Mukai, H. & Nojima, S. 1987. The role of the sea urchin, Tripneustes gratilla (Linnaeus), in decomposition and nutrient cycling in a tropical seagrass bed. Ecol. Res. 2: 19–29. doi:10.1007/BF02348616

Lawrence, J.M. 2007. Edible sea urchins: biology and ecology. Elsevier Science, Amsterdam.

Lesser, P. & Walker, C.W. 1998. Introduction to the special section on sea urchin aquaculture. J. Shellfish Res., 17: 1505–1506.

Ling, S.D., Barrett, N.S. & Edgar, G.J. 2018. Facilitation of Australia’s southernmost reef- building coral by sea urchin herbivory. Coral Reefs, 37(4): 1053–1073. doi: 10.1007/s00 33 8-018-1728-4

Luza, J.C.S. & Malay, M.C.M.D. 2019. Feeding preferences of the sea urchin Diadema setosum (Leske, 1778) in Taklong Island National Marine Reserve, Guimaras, Philippines. PeerJ Preprints, 7: e27733v1. doi: 10.7287/peerj. preprints.27733v1

Mos, B. & Dworjanyn, S.A. 2019. Ready to harvest? Spine colour predicts gonad index and gonad colour rating of a commercially important sea urchin. Aquaculture, 505:510-516. doi: 10.1016/j.aquaculture.2019.03.010

Nane, L. (2019). Efisiensi Mesin Teknologi Sapurata Dalam Mengoptimalisasi Produksi InovasiPangan Kukure Di Pulau Barrang Lompo, Makassar. https://doi.org/10.31230/osf.io/q8spg

Nane, L. (2019). Impact of overfishing on density and test-diameter size of the sea urchin Tripneustes gratilla at Wakatobi Archipelago, south-eastern Sulawesi, Indonesia. BioRxiv, 727271. https://www.biorxiv.org/content/10.1101/727271v1

Nane, L. (2019c). Sea Urchin Sustainability Studies Based on Dimension Biology, Ecology and Technology at Around of Tolandono Island and Sawa Island at Wakatobi Conservation Area. https://doi.org/10.31230/osf.io/4whz6

Nane, L., Baruadi, A. S. R., & Mardin, H. (2020). The density of the blue-black urchin Echinotrix diadema (Linnaeus, 1758) in TominiBay, Indonesia. Tomini Journal of Aquatic Science, 1(1), 16–21. https://doi.org/10.37905/tjas.v1i1.5939

Robinson, S.M.C. 2004. The evolving role of aquaculture in the global production of sea urchins. Sea Urchins: Fisheries and Ecology (Lawrence, J.M. ed.), pp. 343–357. DEStech Publications Inc, Lancaster, PA, USA.

Salvo, A., Cicero, N., Vadalà, R., Mottese, A. F., Bua, D., Mallamace, D., Gianetto, C. & Dugo, G. 2016. Toxic and essential metals determination in commercial seafood: Paracentrotus lividus by ICP-MS. Nat. Product Res., 30(6): 657-664. doi: 10.1080/1478641 9.2015.1038261

Sloan, N. 1985. Echinoderm Fisheries of the World: A Review, pp. 109–124. AA Balkema, Rotterdam, Amsterdam.

Steneck, R.S. 2013. Sea urchins as drivers of shallow benthic marine community structure. In: Lawrence JM (ed.) Sea urchins: biology and ecology. Elsevier, San Diego, pp 195–212. doi:10.1016/B978-0-12-396491-5.00014-9

Sun, J. & Chiang, F.S. 2015. Use and exploitation of sea urchins. In N. P. Brown, & S. D. Eddy (Eds.). Echinoderm aquaculture (pp. 25–45).

Taylor, A.M., Heflin, L.E., Powell, M.L., Lawrence, A.L.,& Watts, S.A. 2017. Effects of dietary carbohydrate on weight gain and gonad production in small sea urchins, Lytechinus variegatus. Aquacul. Nutrition, 23(2): 375–386. doi: 10.1111/anu.12403

Widodo, J. & Suadi 2006 Marine Fisheries Resource Management. Yogyakarta: Gajah Mada University Press., 252 pp.

La Nane1*, Alfi Sahri R Baruadi2, Herinda Mardin3

1,2Department of Aquatic Resources Management, Universitas Negeri Gorontalo; 3Department of Biology, Universitas Negeri Gorontalo.*Email Correspondence: lanane@ung.ac.id 

 

Abstract

The blue-black urchin has been widely known and utilized as food in the world, including Indonesia because sea urchin gonad can be consumed. However, the utilization of sea urchins in Gorontalo has not been performed. On the other hand, natural resources information is needed as the database for natural resources management in Tomini Bay. The aim of this study is to document the blue-black urchin Echinotrix diadema. This study conducted at Blue Marlin Beach, South Leato, Gorontalo, from November 2019 to December 2020. Sea urchin density was calculated with a 1 m × 1 m transect quadrate that positioned at interval 5 m in distance along 15 m of the transect line at the coral reef ecosystem. In parallel with the measurement of the density, sea urchin test diameter was measured with a Vernier caliper (0.01 mm accuracy), and the water temperature was measured with a thermometer. The results show that the average of sea urchin density is 3 ind. m–2 in November and December and 1 ind.m–2 in January. That density has no significant difference among the month. Moreover, the average size of the sea urchin test diameter is 60 mm in November, 63 mm in December, and 66 mm in January. The seawater temperature is 34 °C in November, 37 °C in December, and 33 °C in January. That results show that sea urchin density in the blue marlin beach is very low.

Keywords

Density; Echinotrix diadema; Sea Urchin; Test Diameter; Tomini Bay

 

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References

Amarowicz, R., Synowiecki, J., & Shahidi, F. (2012). Chemical composition of shells from red (Strongylocentrotus franciscanus) and green (Strongylocentrotus droebachiensis) sea urchin. Food Chemistry, 133(3), 822–826. https://doi.org/10.1016/j.foodchem.2012.01.099

Amri, K., Suwarso, S., & Awwaludin, A. (2017). Hydrological conditions and their relationship with the catch of malalugis (Decapterus macarellus) in the water of Tomini Bay [Indonesian]. Jurnal Penelitian Perikanan Indonesia, 12(3), 183–193. https://doi.org/10.15578/jppi.12.3.2006.183-193

Awwaluddin, A., & Rustam, R. (2017). Demersal fish around the Togean Islands, Tomini Bay [Indonesian]. BAWAL Widya Riset Perikanan Tangkap, 1(4), 145–153. https://doi.org/10.15578/bawal.1.4.2007.145-153

Badrudin, M., Gafa, B., & Naamin, N. (1992). Potential fish resources in the waters of the Maluku Sea and Tomini Bay [Indonesian]. Jurnal Penelitian Perikanan Laut, 65, 19–29.

Baruadi, H., Olii, A. H., & Kadim, M. K. (2017). Density and distribution pattern of sea urchins (Echinoidea) in Lamu Village, Batudaa District, Gorontalo Regency [Indonesian], Retrieved from: http://siat.ung.ac.id/files/wisuda/2016-2-2-54242-633411037-abstraksi-05042017015609.pdf

De la Cruz?García, C., López?Hernández, J., González?Castro, M. J., Rodríguez?Bernaldo De Quirós, A. I., & Simal?Lozano, J. (2000). Protein, amino acid and fatty acid contents in raw and canned sea urchin (Paracentrotus lividus) harvested in Galicia (NW Spain). Journal of the Science of Food and Agriculture, 80(8), 1189–1192. https://doi.org/10.1002/1097-0010(200006)80:83.0.CO;2-7

Djamil, C. (2020). Potential and management strategy of small pelagic resources in Tomini Gulf. Nike: Jurnal Ilmiah Perikanan dan Kelautan, 8(1), 18–24. http://ejurnal.ung.ac.id/index.php/nike/article/view/4715

Dumont, C. P., Himmelman, J. H., & Russell, M. P. (2006). Daily movement of the sea urchin Strongylocentrotus droebachiensis in different subtidal habitats in eastern Canada. Marine Ecology Progress Series, 317, 87–99. https://doi:10.3354/meps317087

Grisolía, J. M., López, F., & Ortúzar, J. de D. (2012). Sea urchin: From plague to market opportunity. Food Quality and Preference, 25(1), 46–56. https://doi.org/10.1016/j.foodqual.2012.01.004

Hereu, B., Zabala, M., Linares, C., & Sala, E. (2005). The effects of predator abundance and habitat structural complexity on survival of juvenile sea urchins. Marine Biology, 146(2), 293–299. https://doi.org/10.1007/s00227-004-1439-y

Jula, I. A., Baruadi, A. S., & Salam, A. (2018). The effectiveness of totabito squid fishing gear in Lamu Village [Indonesian]. Nike: Jurnal Ilmiah Perikanan dan Kelautan, 6(1), 23–28.

Kriegisch, N., Reeves, S., Johnson, C. R., & Ling, S. D. (2016). Phase-shift dynamics of sea Urchin overgrazing on nutrified reefs. PLOS ONE, 11(12), e0168333. https://doi.org/10.1371/journal.pone.0168333

Lauzon-Guay, J.-S., & Scheibling, R. E. (2007). Seasonal variation in movement, aggregation and destructive grazing of the green sea urchin (Strongylocentrotus droebachiensis) in relation to wave action and sea temperature. Marine Biology, 151(6), 2109–2118. https://doi.org/10.1007/s00227-007-0668-2

Mardlijah, S., & Rahmat, E. (2012). Fishing of yellowfin fish juvenile (Thunnus albacares Bonnatere 1788) in the waters of Tomini Bay [Indonesian]. Bawal Widya Riset Perikanan Tangkap, 4(3), 169–176. http://dx.doi.org/10.15578/bawal.4.3.2012.169–176

Medrano, A., Linares, C., Aspillaga, E., Capdevila, P., Montero-Serra, I., Pagès-Escolà, M., & Hereu, B. (2019). No-take marine reserves control the recovery of sea urchin populations after mass mortality events. Marine Environmental Research, 145, 147–154. https://doi.org/10.1016/j.marenvres.2019.02.013

Meyer, E., Green, A. J., Moore, M., & Manahan, D. T. (2007). Food availability and physiological state of sea urchin larvae (Strongylocentrotus purpuratus). Marine Biology, 152(1), 179–191. https://doi.org/10.1007/s00227-007-0672-6

Nane, L. (2019). Sea Urchin Sustainability Studies Based on Dimension Biology, Ecology and Technology at Around of Tolandono Island and Sawa Island at Wakatobi Conservation Area. https://doi.org/10.31230/osf.io/4whz6

Nane, L., & Paramata, A. R. (2020). Impact of Overfishing on Density and Test-Diameter Size of the Sea Urchin Tripneustes gratilla at Wakatobi Archipelago, South Eastern Sulawesi Indonesia. ILMU KELAUTAN: Indonesian Journal of Marine Sciences, 1(1). Retrieved from https://ejournal.undip.ac.id/index.php/ijms/article/view/28074

Natsir, M., Sadhotomo, B., & Wudianto, W. (2017). Estimation of pelagic fish biomass in Tomini Bay waters with the divided acoustic bim method [Indonesian]. Jurnal Penelitian Perikanan Indonesia, 11(6), 101. https://doi.org/10.15578/jppi.11.6.2005.101–107

Obie, M. (2018). Exploitation of coastal and marine resources along Tomini Bay: Livelihood base versus concession rights. Masyarakat, Kebudayaan dan Politik, 31(1), 36. https://doi.org/10.20473/mkp.V31I12018.36-45

Palac??n, C., Giribet, G., Carner, S., Dantart, L., & Turon, X. (1998). Low densities of sea urchins influence the structure of algal assemblages in the western Mediterranean. Journal of Sea Research, 39(3–4), 281–290. https://doi.org/10.1016/S1385-1101(97)00061-0

Reynolds, J. A., & Wilen, J. E. (2000). The Sea Urchin Fishery: Harvesting, Processing and the Market. Marine Resource Economics, 15(2), 115–126. https://doi.org/10.1086/mre.15.2.42629295

Rocha, F., Rocha, A. C., Baião, L. F., Gadelha, J., Camacho, C., Carvalho, M. L., Arenas, F., Oliveira, A., Maia, M. R. G., Cabrita, A. R., Pintado, M., Nunes, M. L., Almeida, C. M. R., & Valente, L. M. P. (2019). Seasonal effect in nutritional quality and safety of the wild sea urchin Paracentrotus lividus harvested in the European Atlantic shores. Food Chemistry, 282, 84–94. https://doi.org/10.1016/j.foodchem.2018.12.097

Rodriguez, V., Bartolomé, B., Armisén, M., & Vidal, C. (2007). Food allergy to Paracentrotus lividus (sea urchin roe). Annals of Allergy, Asthma & Immunology, 98(4), 393–396. https://doi.org/10.1016/S1081-1206(10)60888-5

Sala, E., & Zabala, M. (1996). Fish predation and the structure of the sea urchin Paracentrotus lividus populations in the NW Mediterranean. Marine Ecology Progress Series, 140, 71–81. https://doi.org/10.3354/meps140071

Sulaeman, M., Yobert, K., & Darman, D. (2018). Analysis of fish supply chains in Tomini Baya area, Indonesia. Russian Journal of Agricultural and Socio-Economic Sciences, 82(10), 268–271. https://doi.org/10.18551/rjoas.2018-10.31

Suriani, S., Latumahina, B. M., Hitalessy, R. B., & Eddy, L. (2020). Relationship of macroalgae (Padina sp) population with pigskin (Tripneustes gratilla) in coastal waters of Desa Titawaai, Central Maluku Regency [Indonesian]. Jurnal Riset Perikanan dan Kelautan, 2(1), 165–175. http://ejournal.um-sorong.ac.id/index.php/jrpk/article/view/866

Suwarso, S., A. Zamrony, A. Z., & Setiawan, R. (2017). The eating habit of several types of pelagic fish in the waters of Tomini Bay [Indonesian]. Jurnal Penelitian Perikanan Indonesia, 11(6), 103. https://doi.org/10.15578/jppi.11.6.2005.103-113

Takagi, S., Murata, Y., Inomata, E., Aoki, M. N., & Agatsuma, Y. (2019). Production of high quality gonads in the sea urchin Mesocentrotus nudus (A. Agassiz, 1864) from a barren by feeding on the kelp Saccharina japonica at the late sporophyte stage. Journal of Applied Phycology, 31(6), 4037–4048. https://doi.org/10.1007/s10811-019-01895-6

Tomas, F., Martínez-Crego, B., Hernán, G., & Santos, R. (2015). Responses of seagrass to anthropogenic and natural disturbances do not equally translate to its consumers. Global Change Biology, 21(11), 4021–4030. https://doi.org/10.1111/gcb.13024