This research was conducted from May to August 2020, located in the Wandoke Watershed, Gunung Sejuk Village, South Buton Regency. This study aims to analyze the invasive status of the alien species Tarebia granifera based on the perspective of its population density in the river of Gunung Sejuk village. This research is intended to examine the dominance of T. granifera species to local gastropod commodities in the typical habitats and niches of the Wandoke river. Determination of the station or location of the observation begins with a preliminary survey, making it easier to select and determine research stations. Determination of research stations using purposive sampling technique or method of designating stations deliberately, based on the presence of invasive alien species populations of T. granifera and T. granifera sampling using simple random sampling or T. granifera sampling is done randomly in a square transect measuring 100 m2 , using a quadratic transect measuring 1 m2, with the assumption that each point in the transect measuring 100 m2 has homogeneous conditions. The population density of T. granifera at each station in the months of May - August (Spatial and Temporal) shows the size is not much different, where the density range is 21 ind/m2- 43.33 ind/m2. The results of measurement and population density analysis of T. granifera in the waters of the Wandoke river, Gunung Sejuk village is the massive empirical evidence of the invasive pattern of the thiaridae snail.
Aksi bersih pantai dan transplantasi karang di Pulau Bokori ini merupakan rangkaian kegiatan dari Dinas Bulanan BKIPM - KKP (Badan Karantina Ikan, Pengendalian Mutu dan Keamanan Perikanan - Kementerian Kelautan dan Perikanan). Kegiatan pengabdian ini dilaksanakan selama bulan April 2019, bertempat di Pulau Bokori, Kecamatan Soropia, Kabupaten Konawe. Tujuan dilaksanakannya pengabdian kepada masyarakat ini adalah untuk memberikan pemahaman kepada masyarakat pesisir di sekitar Pulau Bokori tentang dampak negatif kegiatan sampah laut dan rehabilitasi terumbu karang yang telah rusak akibat penambangan dengan cara yang sederhana, mudah dilaksanakan dan relatif murah. Sekitar 180 orang terlibat dalam kegiatan tersebut. Fakultas Perikanan dan Ilmu Kelautan Universitas Halu Oleo (FPIK – UHO) menjadi salah satu mitra dalam kegiatan tersebut. Aksi pantai bersih difokuskan pada pengumpulan sampah plastik baik di darat maupun di dasar laut. Hal ini merupakan bentuk komitmen tanggung jawab BKIPM dan FPIK UHO dalam menjaga keindahan bawah laut. Selain itu, kegiatan transplantasi karang juga dilakukan. Sekitar 1.800 spesimen karang dari berbagai spesies ditanam dengan metode transplantasi karang. Pembersihan pantai dan penanaman karang akan dilaksanakan pada tanggal 19 April 2019. Selanjutnya monitoring dan evaluasi keberhasilan hidup dan tumbuh karang akan dilakukan di pantai setiap bulan selama 1 tahun ke depan, sebagai bentuk perlindungan terhadap unit transplantasi yang telah telah ditempatkan secara permanen di bawah laut Pulau Bokori Kecamatan Soropia Kabupaten Konawe.
Diversifikasi komoditas perikanan non ekonomi merupakan inovasi penting di bidang pengolahan hasil perikanan yang secara signifikan dapat meningkatkan pendapatan keluarga nelayan. Pengabdian kepada masyarakat ini dilaksanakan pada tanggal 23-25 Agustus 2019 di Desa Puasana, Kecamatan Moramo Utara, Kabupaten Konawe Selatan. Pelaksanaan Program Pengabdian kepada Masyarakat yang bertajuk Pengolahan Hasil Perikanan (Mpek Mpek Ikan Laut Non Ekonomis) ini memiliki beberapa tujuan yaitu: 1) Mendukung program pembangunan desa pesisir, dan 2) Meningkatkan pengetahuan ibu-ibu rumah tangga nelayan dalam mengolah hasil laut menjadi bahan pangan varian baru. Cara yang digunakan untuk mencapai tujuan tersebut adalah dengan memanfaatkan teknologi yaitu pembekalan pengetahuan tentang teknik pembuatan masakan ikan yang higienis dan ramah lingkungan, selain itu juga diberikan pelatihan tentang cara pengemasan produk yang benar dan cara memasarkannya. dia. Dengan beberapa metode yang diperkenalkan diharapkan mampu memberikan kontribusi sosial yaitu membuka wawasan dan cara berpikir ibu-ibu rumah tangga nelayan untuk memanfaatkan bahan baku hasil laut seefektif mungkin dan menciptakan lapangan pekerjaan di Desa Puasana dan kemampuan ibu rumah tangga nelayan untuk berwirausaha secara mandiri yang pada akhirnya dapat meningkatkan perekonomian rumah tangga dan membantu pembangunan desa pesisir.
The attachment of epiphytes on culture equipment and seaweed thalli has proven to be one of the factors preventing Eucheuma denticulatum growth. This research aimed to clarify epiphyte preference for E. denticulatum thallus and culture equipment by using vertical nets. Vertical net is a cultivation technology that protects seaweeds from herbivorous pests (fish and turtles). This research was conducted at Tanjung Tiram Coast, one of seaweed cultivation areas in Southeast Sulawesi Province, Indonesia. This research used vertical nets and E. denticulatum thalli. The study took place at 3 stations, each using 3 tools and 3 replications. The results showed that there were 7 species of epiphyte attaching to the vertical net equipment and 6 species attaching to the thalli of E. denticulatum. The densities of epiphytes attaching to the vertical net equipment and E. denticulatum thalli were 110 ind./cm2 and 250 ind./cm2 on average, respectively. Statistical analysis showed no significant difference in density between the epiphytes attached to the vertical net equipment and those attached to the E. denticulatum thalli. They also showed that the epiphyte density insignificantly influenced the overall seaweed weight. Correlation analysis showed a significant correlation between the abundance of epiphytes attached to the vertical nets and brightness.
The existence of macroepiphyte is one of the issues seaweed farmers often face. This research aims to explore the existence of macroepiphyte attached to seaweed Eucheuma denticulatum at varying depths using vertical net method. Research found that the highest and the lowest velocity of macroepiphyte on day -10 in the depth of 50 cm and 200 cm is 248,4 and 121,28 ind/m2/day. On day-20, in the depth of 100 cm and 200 cm is 333,54 and 270,01 ind/m2/day. The most dominating macroepiphyte in the attachment velocity is C. Crasa. Physical and chemical parameter showed around 29o-30oC. Current velocity 0,050-0,067 m/sec. Brightness 92%. Salinity 30-33‰. Nitrate 0,237-0,0416 mg/L. Phosphate 0,0015-0,0036 mg/L. Dissolved oxygen 5,7-6,2 mg/L. The obtained optimum environmental parameter and the type of the macroepiphyte attachment did not show any significant negative effect to the growth of E. denticulatum.
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