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.

Sumberdaya Perikanan di Gorontalo Utara sangat besar. Potensi Manajemen Perikanan Daerah dari Laut Sulawesi ke Samudera Pasifik mencakup sekitar 590,970 ton ikan pelagis, termasuk 175.260 ton pelagis besar, 384,750 ton pelagis kecil dan jenis ikan lainnya sekitar 30,960 ton. Di sisi lain, pemanfaatan sumberdaya perikanan masih minimum hanya 46%. Pemerintah Gorontalo Utara menetapkan perikanan tangkap sebagai program utama untuk meningkatkan kesejahteraan masyarakat untuk meminimalkan kurangnya pemanfaatan sumberdaya perikanan. Pemerintah harus menyadari situasi ini untuk merumuskan dan memutuskan setiap kebijakan. Kebijakan yang telah diterapkan di tahun terakhir di Gorontalo Utara adalah Minapolitan yang diselenggarakan oleh Departemen Kelautan dan Perikanan Indonesia bergabung dengan Pemerintah Daerah. Jadi, penelitian pengembangan penangkapan perikanan berdasarkan Model minapolitan diperlukan untuk merancang model kebijakan sebagai panduan untuk memutuskan kebijakan perikanan tangkap. Metodologi yang digunakan dalam penelitian ini adalah analisis produksi surplus untuk menganalisis sumber daya ikan yang tepat untuk menangkap ikan, dan analisis SEM (Struktur Equation Modeling). Hasil penelitian menunjukkan bahwa pemanfaatan sumber daya perikanan masih kurang di bawah MSY (Maximum Sustainable Yield). Beberapa program yang harus dikembangkan adalah purse seine, tuna hand line, bagan, garis tangan, dan payang. Tujuan dari kebijakan minapolitan adalah menciptakan pertumbuhan ekonomi lokal dan meningkatkan produksi perikanan penangkapan dan menjamin kualitas perikanan tangkap

Tomini Gulf coast inhabited by various ethnic groups in Indonesia, one of Gorontalo. The coastal area Gorontalo Tomini Bay stretches from the border Bone Bolango - Mongondow Bolaang South (North Sulawesi) to Pouhuwato - Parigi Moutong (Central Sulawesi). The purpose of this research for the inventory of local knowledge Gorontalo related to astronomy and movement of pelagic fish in the Gulf of Tomini. Based on this research, there is local wisdom that still retained fishermen off the coast of Gorontalo, Tomini, like the seasons, currents and astronomy (astrology). Fishermen off the coast of Gorontalo, Tomini, referring to the constellation as a direction and a benchmark in the utilization of fishery resources. Collecting data in this study done by observation and interviews with several respondents fishermen. Respondents were determined by purposive sampling (intentionally). Data collection for this study from September 2017 until February 2019. Similarly Discussion Forum Focus (Focus Group Discussion, FGD) in several places on local wisdom for the season, currents and  astronomy.