Tujuan penelitian adalah untuk menganalisis asosiasi dan relung mikrohabitat gastropoda pada ekosistem hutan mangrove di Pulau Sibu Kecamatan Oba Utara Kota Tidore Kepulauan Provinsi Maluku Utara. Pengambilan sampel dilakukan pada saat air surut dengan menggunakan metode line transect. Hasil penelitian diperoleh komposisi jenis-jenis gastropoda di Pulau Donrotu sebanyak 12 jenis yaitu Littrorina scabra, Littorina undulata, Turbo agryrostoma, Turbo chrysostoma, Turbo breneus, Nerita costata, Nerita planospira, Strombus luhuanus,, Cerithiidea cingulata, Telescopium telescopium, Telebralia sulcata dan Terebralia palustris. Pasangan jenis gastropoda yang diperoleh memiliki tipe asosiasi positif sebanyak 14 pasangan, asosiasi negatif sebanyak 11 pasangan  dan tidak ada asosiasi sebanyak 42 pasangan. Jenis gastropoda yang mempunyai relung habitat terlebar adalah Terebralia sulcata dan tersempit adalah Turbo chrysostomus.

The shellfish craft business is not only profitable for business actors, but also provides other benefits, including opening up employment opportunities for the community, increasing community creativity due to growing market demand and maintaining the product as a quality work of art. The output targets are household equipment (tissue boxes), interior accessories (wind chimes, door/window curtains) and souvenirs (key chains, brooches). Implementation methods include counseling, demonstration, training and coaching in the development of shellfish waste as a business opportunity. The training activity was successful because the enthusiasm of the participants was so great in pursuing the art of shellfish craft. Various forms of products and models produced are very varied. The products produced are tissue boxes, wind chimes, door/window curtains, key chains and brooches. The formation of a craft group “Creative Kastil” in the context of the sustainability of training activities.

Penelitian  ini dilakukan dengan tujuan untuk mengetahui jenis mangrove yang dimanfaatkan dalam pengobatan tradisional di Desa Mamuya Kecamatan Galela Timur, mengetahui bagian dari manrove yang berpotensi untuk sediaan farmasitika dan mengetahui teknik pengolahan bahan mangrove yang dijadikan sebagai obat di Desa Mamuya Kecamatan Galela Timur. Hasil penelitian  ditemukan jenis mangrove yang dimanfaatkan penduduk Desa Mamuya sebagai obat sebanyak 8 jenis yaitu Bruguiera gymnorrhiza, Rhizophora apiculata, R. stylosa, Sonneratia alba, Xylocarpus gratanum, Xylocarpus molucensis, Nypa fruticans dan Heritiera littoralis. Bagian mangrove yang dijadikan sebagai obat yaitu : akar muda, kulit batang, daun dan buah. Cara mengolah bahan dari bagian mangrove, akar, kulit batang, daun, buah dilakukan secara sederhana yaitu ada yang dilumatkan dalm mulut dan ada yang direbus. Masa penyembuhan ditentukan seberapa parah (akut) penyakit yang diderita.BENEFITS OF MANGROVE FOR PHARMACITIC INVENTORY IN MAMUYA VILLAGE, EAST GALELA DISTRICT, EAST HALMAHERA REGENCY (ETHNOPHARMACOLOGICAL REVIEW). This research was conducted to determine the type of mangrove used in traditional medicine in the village of Mamuya, Galela Timur District, knowing the potential part of the mangrove for pharmaceutical preparation and knowing the techniques for processing mangrove materials which were used as medicine in Mamuya Village, Galela Timur District. The results of the study found that the types of mangroves used by the residents of Mamuya Village were 8 types of drugs, namely Bruguiera gymnorrhiza, Rhizophora apiculata, R. stylosa, Sonneratia alba, Xylocarpus gratanum, Xylocarpus molucensis, Nypa fruticans and Heritiera littoralis. Parts of the mangrove that are used as medicine are: young roots, bark, leaves and fruit. How to process ingredients from parts of the mangrove, roots, bark, leaves, fruit is done simply that there are crushed in the mouth and some are boiled. The healing period is determined by how severe (acute) the disease is suffered.

Buah dari beberapa jenis mangrove dapat digunakan sebagai bahan baku olahan pangan yang saat ini mulai berkembang dengan pesat. Sebagai upaya pemenuhan tersebut maka upaya pengelolaan mangrove dan lingkungan perlu segera dilakukan sehingga ke depan olahan bahan pangan tersebut semakin berkembang dan berfungsi sebagai sumber bahan pangan. Buah lindur  dapat diolah menjadi aneka produk makanan seperti kue, cake, dicampur dengan nasi atau dimakan langsung dengan bumbu kelapa. PKM ini dilakukan dengan tujuan memberikan pengetahuan kepada masyarakat tentang teknik pengolahan buah mangrove Bruguiera gymnorrhiza berbasis IPTEK dan teknologi tepat guna. Luaran PKM adalah produk hasil olahan buah mangrove yang memiliki nilai jual yang tinggi yaitu  kue kering good time, dan selai dau. Pelaksanaan pengabdian di Desa Maitara Utara Kecamatan Tidore Utara pada bulan September 2021. Metode pelaksanaan kegiatan Pengabdian Kemitraan Masyarakat meliputi : metode survey, metode sosialisasi, metode ceramah, metode praktek, metode pengujiam organoleptic dan metode pendampingan. Kegiatan PKM berdampak positif terhadap masyarakat karena menambah pengetahuan masyarakat tentang pengolahan buah mangrove Bruguiera gymnorrhiza sebagai bahan makanan.  Kegiatan platihan ini dianggap berhasil karena semua peserta pelatihan begitu bersemangat dan antusiasme dalam menekuni pelatihan olahan buah mangrove sebagai produk kue good time dan selai dau, hasil uji organoleptik semua produk disukai oleh responden dan produk Good Time  merupakan produk yang memiliki nilai skoring lebih tinggi. Terbentuknya kelompok wirausaha “Mari Rasa Kreatif” dalam rangka keberlanjutan kegiatan pelatihan.

The dynamics in zooplankton abundance were regulated by changes in water physical-chemical parameters and interaction with biotic factors. In this research we examined the relationship between zooplankton community dynamic and important biotic factors, such as predation and food availability, in Jakarta bay. Plankton samplings were done in 10 sampling stations in Jakarta bay, from July to November 2009. Zooplankton samples were collected using horizontal towing method with NORPAC plankton net (mesh size 300 µm). Salinity, water depth, water temperature, and water transparency were measured. Phytoplankton samples were also collected with the same method as zooplankton, using Kitahara plankton net (mesh size 80 µm). Zooplankton taxas were grouped into two groups, the prey and predatory zooplankton. The results showed that there were two different patterns in zooplankton groups dynamic i.e., the single and double peak. The abundance peak in most zooplankton groups, such as copepods, cirripeds, luciferids, and tunicates, were induced by the high food availability during the phytoplankton bloom in August. The high abundance of prey zooplankton groups in August was responded by the predatory zooplankton groups, resulting in high abundance of predatory zooplankton in adjacent month. The high abundance of ctenophores and chordates (fish larvae) were suggested as the main factor for the low abundance of other zooplankton in September. Physical and chemical factors were not the regulating factors due to the stability of those factors during this research period. Thus we concluded that food availability and predator-prey interaction were the main factors which regulate zooplankton community dynamics in Jakarta bay.