Background: No study has documented the species composition of Nike fish (fam: Gobiidae) schools. The aim of this study is to document the species composition of the Nike-fish schooling. Methods: All samples were collected randomly from fisher’s catch during the fishing season on 5th–11th October 2018 at macrotidal area in Leato. Then, all specimens were identified morphologically by melanophore pattern differences. Subsequently, all identified-samples by melanophores pattern differences were sent to the genetic laboratory for identification. Results: The morphological results show there are five individuals with a different melanophores pattern. On the contrary, the genetic results only show four species from those five individuals. They are Sicyopterus pugnans, S. cynocephalus, Belobranchus segura, and Bunaka gyrinoides. Conclusions: Our findings show that there are only four species that compose the Nike fish schooling in Gorontao Bay. They are Sicyopterus pugnans, Sicyopterus cynocephalus, Belobranchus segura, and Bunaka gyrinoides.

Abstract. Sahami FM, Kepel RC, Olii AH, Pratasik SB, Lasabuda R, Wantasen A, Habibie SA. 2020. Morphometric and genetic variations of species composers of nike fish assemblages in Gorontalo Bay Waters, Indonesia. Biodiversitas 21: 4571-4581.  Nike is Gobioidei fish at the post-larval and juvenile stages whose habitat is still in seawater before they migrate to the freshwater, grow up, and spawn to fulfill their life cycle as an amphidromous species. This study aims to identify the species composers of Nike fish in Gorontalo Bay waters based on their morphometric and molecular characters. 2,523 samples were collected from the catches of fishermen during three periods of their appearance in Gorontalo Bay waters from January to March 2019. The samples were grouped based on their similarity of melanophore patterns, and morphometric characters of 10 units were then measured. This study found 20 different groups of melanophore patterns; 15 of them were new melanophore patterns. DNA samples from each group of new melanophore patterns were then isolated for molecular analysis. The morphometric analysis grouped the 20 melanophore patterns into three separate clusters that were confirmed through molecular analysis. The results of Gen Cytochrome Oxidase I (COI) sequences indicate that the new melanophore patterns of Nike fish assemblages consisting of six species; five species in the Gobiidae family (i.e. Sicyopterus parvei, S. cynocephalus, S. longifilis, S. lagocephalus, and Stiphodon semoni) and a species in the Eleotridae family (Belobranchus belobranchus).

This study was carried out in coastal waters of Blongko Vilage, Sub-District of Sinonsayang, District of South Minahasa with an objective of knowing the taxa composition of macroalgae through morphological studies. Data collection used exploring survey. Results found 14 species that consisted 8 species of green algae, 2 species of brown algae, and 4 species of red algae.Keyword: Macroalgae, Blongko.  Abstrak Penelitian ini dilakukan di perairan pesisir Blongko, Kecamatan Sinonsayang, Kabupaten Minahasa Selatan dengan tujuan untuk mengetahui komposisi taksa makroalga melalui pendekatan morfologi. Pengambilan data dilakukan dengan menggunakan metode Survei Jelajah. Hasil penelitian menemukan 14 spesies, yang terdiri dari 8 spesies alga hijau, 2 spesies alga cokelat dan 4 spesies alga merah.Kata Kunci: makroalga, Blongko.

Title (Bahasa Indonesia): Pengembangan Kawasan Minapolitan di Kota Bitung, Indonesia The Ministry of Maritime Affairs and Fisheries has set Bitung City as one of the locations for minapolitan program implementations based capture fisheries. Minapolitan's fisheries Bitung City is a neighborhood-based economic development fishing effort developed in an integrated manner by the government, the privatesectorand community to create a business climate forbetter for regional economic growth, job creation and community income neighborhood Bitung City. This study aimsto analyze the policy strategy for developingMinapolitan Region of the City of Bitung through SWOT analysis and determinepriorities for the development strategy of Bitung city Minapolitan Region. The research method is a survey study, data were collected through interviews and direct observation and literature. SWOT analysis is used to identify strengths, weaknesses, opportunities and threats. Furthermore, to determine the alternative development strategy used OSPM. The study concluded that the strategies that can be used for the development Minapolitan in Bitung are as follows: 1) optimization of fisheriesproduction; 2) improve the facilities, infrastructure and transport infrastructure and fishing port; 3) by improving the quality of human resources in fishing; 4) improving the quality of fisheriesproducts to be able to compete infree market; 5) to build the collective awareness to stay remain committed and consistent in developing minapolitan; 6) industrialization of fisheries bu supportingSpecial Economic Zone (SEZ).Kementerian Kelautan dan Perikanan telah menetapkan Kota Bitung sebagai salah satu lokasi implementasi program minapolitan berbasis perikanan tangkap. Kawasan minapolitan perikanan tangkap di Kota Bitung adalah suatu kawasan pengembangan ekonomi berbasis usaha penangkapan ikan yang dikembangkan secara terintegrasi oleh pemerintah, swasta dan masyarakat untuk menciptakan iklim usaha yang lebih baik untuk pertumbuhan ekonomi wilayah, penciptaan lapangan kerja dan pendapatan masyarakat kawasan Kota Bitung. Penelitian ini bertujuan menganalisis strategi kebijakan pengembangan Kawasan Minapolitan kota Bitung melalui analisis SWOTdan menetapkan prioritas strategi pengembangan Kawasan Minapolitan kota Bitung. Metode penelitian adalah penelitian survei, data dikumpulkan melalui wawancara dan observasi langsung dan literatur. Analisis SWOT digunakan untuk menidentifikasi kekuatan, kelemahan, peluang dan ancaman. Selanjutnya untuk menentukan alternatif strategi pengembangan digunakan OSPM. Hasil penelitian menyimpulkan bahwa strategi yang dapat digunakan untuk pengembangan minapolitan di Bitung sebagai berikut: 1) optimalisasi produksi perikanan; 2) meningkatkan sarana, prasarana dan infrastruktur transportasi dan pelabuhan perikanan; 3) peningkatan kualitas SDM nelayan; 4) peningkatan kualitas produk perikanan untuk dapat berdaya saing dipasar bebas; 5) membangun kesadaran kolektif tetap komitmen dan konsisten dalam mengembangkan minapolitan; 6) industrialisasi perikanan dengan mensuport KEK.

Sumich (1992) divided the structure of algae into  3 main parts namely: blade,the leaf like structure which is thin and wide, stipe, trunk like form that elastic to withstand sea waves, and holdfast, known as root-like form function to anchor the plant on the substrate. The study was conducted Mokupa beach waters sub-district Tombariri, Minahasa district. Mokupa coastal waters known to have typical ecosystem found in the tropics such as mangrove forest, coral reef and seagrass beds as well as macro algae community. The area is flat-bed coast with sandy substrate, sandy-silt substrate and rocky-sand substrate. Species of macro-algae found in this area consist of 7 species namely Halimeda macroloba, H. opuntia, Padina minor, Sargassum polycystum, Gracilaria edulis, G. firma, and Udotea orientalis. In general species density for all transect deployed  in the study site Halimeda macroloba has the highest index value, while for species diversity index transect II showing the highest value.   Keywords: Alga, community, diversity, dominance A B S T R A K Sumich (1992) membagi struktur alga menjadi 3 bagian utama yaitu blade yang merupakan struktur yang menyerupai daun yang pipih biasanya lebar, stipe yaitu struktur yang menyerupai batang yang lentur digunakan sebagai penahan hempasan ombak, dan holdfast yaitu bagian dengan bentuk seperti akar yang berfungsi untuk meletakkan tubuh pada substrat. Penelitian ini dilaksanakan di perairan pesisir Desa Mokupa, Kecamatan Tombariri, Kabupaten Minahasa. Daerah pesisir Desa Mokupa merupakan daerah yang lokasinya terdapat ekosistem yang khas di daerah tropis yaitu mangrove, terumbu karang, dan padang lamun, demikian pula terdapat komunitas alga makro. Profil dari pantai tersebut adalah pantai yang landai dengan substrat pasir, pasir berlumpur dan pasir berbatu. Jenis alga makro yang ditemukan di lokasi penelitian berjumlah 7 spesies, yaitu Halimeda macroloba, H. opuntia, Padina minor, Sargassum polycystum, Gracilaria edulis, G. firma, dan Udotea orientalis. Secara keseluruhan kepadatan spesies untuk semua transek yang tertinggi adalah Halimeda macroloba, sedangkan keanekaragaman jenis alga makro tertinggi terdapat di transek II.   Kata Kunci : keanekaragaman, alga, komunitas 1Mahasiswa Program Studi MSP FPIK-UNSRAT 2Staf pengajar Fakultas Perikanan dan Ilmu Kelautan Universitas Sam Ratulangi