Research on whale sharks (Rhincodon typus) was conducted from September 1st to December 20th, 2020 in Kwatisore waters. Kwatisore waters are within the conservation area of the Cenderawasih Bay National Park and have specifications for the number of whale sharks and the appearance of new individuals. The appearance of whale sharks individuals takes place every day around the boat life net area that is anchored in Kwatisore waters. This study aims to assess whale shark aggregation, particularly the total appearances and number of individual appearances in eight boat life net units. The number of appearances and the number of individual whale sharks is very dependent on the catch of anchovies by each boat life net unit and the feed of anchovies given by the fishermen. The results showed that there were 499 appearances of whale sharks consisting of 15 individuals, of which 13 individuals were identified, while 2 were new individuals who had not been identified. The new individual for ID 182 is named Yan Maruanaya and ID 183 is named Bram Maruanaya. The percentage of whale sharks appears during the period of September to December 2020 is 100% male with a length of 3 to 6 m.

Coral reef ecosystem in the one of the coastal ecosystems which have an important role both ecologically and economically. Coral reef in Ihamahu Village have been damaged  at lagoon area due to pressure of community activities. This research was carried out at Laguna Besar and Slope Reef (Labuang) Laguna Kipuo, Ihamahu Village, East Saparua District, Central Maluku on March to August 2018. The purposes of the research were: to analyze the suitability and support capacity of the area for coral reefs rehabilitation in lagoon as well as to analyze social support of the community for the management of coral reefs rehabilitation area. The primary data was collected directly through observing the condition of coral reefs and supporting parameters of coral transplantation, distributing questionnaire, and interviewing the community of Ihamahu village, while the secondary data was collected through relevance literature from some previous research. The result showed that the condition of coral reefs was damaged. The parameters used to analyze the suitability of coral transplantation showed that both areas were suitable for coral transplantion. The area of coral reefs rehabilitation at station 1 was 4.45 ha which is able to accommodate  988,980 artificial block substrates, while stasion 2 had 0.90 ha with 200,000 artificial block substrates. The result also showed that 100% of Ihamahu Villagers supported this program. Keywords : coral reef, rehabilitation, transplantation, lagoon, carrying capacity   ABSTRAK Ekosistem terumbu karang merupakan salah satu ekosistem pesisir yang peranan penting baik secara ekologi maupun ekonomi. Terumbu karang telah mengalami kerusakan pada daerah laguna Negeri Ihamahu akibat tekanan aktivitas masyarakat. Penelitian dilakukan di perairan Negeri Ihamahu tepatnya di Laguna Besar dan Slope Reef (Labuang) Laguna Kipuo, Negeri Ihamahu, Kecamatan Saparua Timur, Kabupaten Maluku Tengah pada Maret-Agustus 2018. Tujuan penelitian ini yaitu menganalisis kesesuaian daerah rehabilitasi terumbu karang di Laguna dan menganalisis daya dukung dalam pengelolaan daerah rehabilitasi terumbu karang di daerah Laguna. Pengumpulan data primer diperoleh melalui pengamatan secara langsung meliputi kondisi terumbu karang, parameter penunjang transplantasi karang, penyebaran kuisioner, dan wawancara langsung masyarakat di Negeri Ihamahu. Data sekunder dikumpulkan melalui literatur-literatur dari berbagai penelitian terkait sebelumnya. Hasil analisis menunjukkan bahwa kondisi terumbu karang berada pada kategori rusak. Parameter yang dipakai untuk menganalisis kesesuaian transplantasi karang menghasilkan kedua lokasi sudah sesuai untuk dilakukan transplantasi karang. Luas lahan rehabilitasi terumbu karang pada stasiun 1 adalah 4,45 Ha dengan daya dukung sebanyak 988.890 substrat buatan, stasiun 2 sebanyak 200.000 substrat buatan dengan luas areal rehabilitasi 0,90 Ha. Kegiatan rehabilitasi dengan teknik transplantasi ini didukung 100% oleh masyarakat.

Lola Snail (Trochus niloticus) was an organism threatened to extinct due to excessive exploitation. In addition to the higher usage rate of lola snail, the catch of fish around habitat of lola snail was also the cause of the decreased population of the snail. Therefore, information about population structure and coral reef condition which became the habitat of lola snail was absolutely important. Research was conducted at eastern coastal waters of Saparua Island, Saparua Subdistrict, Central Maluku District, from January to June of 2010. The sampling of lola snail and the observation of coral reef were using Line Intercept Transect (LIT), while the identification of age structure was using FISAT II Version 0.3.1. Result of research indicated that the potentiality of lola snail resources at eastern coast of Saparua Island was 7,749,111 individuals. Maximum catch rate was 3,874,555 individuals. The allowable catch rate was 3,099,644 individuals. Asymptote length (L ) and coefficient of growth (K) for lola snail were 0.52 per year. K-value indicated fast growth rate at short age, which was 16 months or 1.4 years. Total Mortality Rate (Z) was 2.66, while natural mortality (M) was 1.39. Catch mortality (F) was 1.27, and optimum exploitation rate was 0.48. Coral reef condition in eastern coast waters at Saparua Island was ranging from moderate to good condition.

Baguala Bay is a high potential area with a rich fishery resources. Marine aquaculture field area should be determined by considering the ecological, technical, hygienic, socio-economic conditions simultaneously to the laws and regulation. The research is done in order to analyze chemical and biophysical indicators in the waters of Baguala Bay and to determine seaweed (Eucheuma cottonii) cultivation area considering the determination of seaweed cultivation zone. The result is done in February to March 2020 continues by laboratory analysis and data tabulation based on the time schedule. Interpolation Inverse Distance Weighted (IDW) is used to analyze data. The result shows the suitability cultivation area in Baguala Bay is 1048.296 ha or 78.7% is in high suitable rate and 282.483 ha or 21.2% is in suitable rate. Among all of the criteria of suitable cultivation area in Baguala Bay, nitrate is the criteria with the high suitability parameter overall.   ABSTRAK: Teluk Baguala merupakan kawasan yang memiliki potensi sumberdaya perikanan yang cukup melimpah. Penentuan lokasi lahan budidaya perikanan laut harus didasarkan pertimbangan ekologis, teknis, higienis, sosio-ekonomis, dan ketentuan peraturan perundang-undangan yang berlaku. Tujuan penelitian ini ialah menganalisis indikator biofisik dan kimia perairain Teluk Baguala serta menentukan lokasi budidaya rumput laut (Eucheuma cottonii) dalam kaitan penetapan zonasi budidaya rumput laut. Penelitian berlangsung dari Februari hingga Maret 2020 dilanjutkan dengan analisa laboratorium dan tabulasi data berdasarkan waktu yang ditetapkan. Analisis data yang di gunakan penelitian ini adalah metode Interpolasi Inverse Distance Weighted (IDW). Hasil penelitian menunjukan kesesuaian lahan budidaya di Teluk Baguala memperoleh 1048.296 ha atau 78.7% untuk kelas sangat sesuai dan 282.483 ha atau 21.2% untuk kelas sesuai. Dari semua kriteria kesesuaian lahan budidaya di Teluk Baguala, nitrat merupakan kriteria yang mempunyai parameter perairan masuk dalam kelas sangat sesuai secara keseluruhan.   Kata Kunci: Teluk Baguala, lahan budidaya, rumput laut, kesesuaian, SIG

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