Riset ini dilakukan pada bulan April sampai September 2017. Lokasi riset ini di kawasan mangrove Karangsong, Kecamatan Indramayu, Kabupaten Indramayu, Propinsi  Jawa Barat. Tujuan riset ini adalah untuk memperoleh data keanekaragaman dan kerapatan mangrove, mendapatkan status biofisik ekosistem mangrove di Karangsong Indramayu, mengevaluasi daya dukung lingkungan kawasan wisata bahari di Karang Song Indramayu, dan mengevaluasi status pengelolaan kawasan wisata bahari mangrove di Karang Song Indramayu. Metode yang digunakan adalah metode survey dan wawancara. Metode ini untuk mengetahui data keanekaragaman, kerapatan mangrove dan biofisik kawasan wisata mangrove. Hasil yang ditemukan adalah ditemukannya 3 jenis mangrove yaitu Avicennia marina, Rhizophora stylosa, dan Rhizophora mucronata. Dalam kawasan mangrove ditemukan Kepiting Uca (Uca sp), Kepiting bakau (Scyalla serata) yang berlimpah, sehingga bisa dimanfaatkan untuk masyarakat sekitar. Kerapatan mangrovenya yaitu berkisar dari 380 – 1040 individu/Ha. Adapun daya dukung lingkungan kawasan mangrove sebesar 643 orang/hari yang bisa ditampung secara efisien agar kawasan tersebut tetap terjaga lestari. Evaluasi status pengelolaan oleh kelompok masyarakat Pantai Lestari adalah dengan mempertahankan dan memajukan wisata bahari sebagai program unggulannya. Penambahan luasan kawasan oleh kelompok Pantai Lestari adalah dengan menjadikan arboretum dan silvofishery dengan apik dan rapih kelompok masyarakat Pantai Lestari menjaga dan mengembangkannya, walaupun kawasannya berada berbeda di sebrangnya kawasan ekowisata mangrove Karangsong Indramayu. Sesuai wawancara dengan kelompok masyarakat Pantai Lestari akan mengajak masyarakat yang mempunyai tambak dan akan bisa menambah luasan kawasan ekowisata mangrove.

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The objective of this study is to survey the macroalgae inhabiting two mangrove habitats along the Red Sea coast in the vicinity of Hurghada and Safaga and to illustrate the distribution of macroalgal communities, species composition, relative abundance and average standing crop seasonally. The results revealed that, 23 species of macroalgae were recorded from the different sites of the two areas during the four seasons (9 species belong to Phaeophyta, 6 species to Rhodophyta and 8 species to Chlorophyta). The standing crop of macroalgae recorded at the two areas maintained their highest peak during spring and the lowest during winter season. The highest density of standing crop was recorded at Hurghada area. The results also show that, no significant differences were detected in the studied environmental factors at both areas except for some fluctuations were randomly noticed. Mangroves offered habitat that allows the delicate algae to grow at higher level than on sunlit beach.

Microplastic is one of the pollutants that can contaminate marine biota even spread in sea waters and coastal substrate because of the sizes ranges to 10 μm - 2 mm. This pollutant is spread in marine waters and found in the area of Seribu Island, Pari Island Area, DKI Jakarta. This research aims to identify the amount of abundance, type, size, and color of microplastic that was found in sediment and shell samples. The research method used was a survey method and laboratory analysis. The method consists of three parts, namely field data collection, identification using a microscope, and describing the results of identification.  All sediment and shell samples were identified as being contaminated with microplastics. Microplastic are found in fiber, fragment, and film type. That color found including black, yellow, red, blue, green, chocolate, and clear. The most dominant microplastic color is black and the most dominant microplastic size is the small size group. The highest microplastic abundance in sediment samples from 3 stations is found in samples taken by station 2 with an average of 43.67 particles. 100 g-1 of dry sediment and the most dominant type is the fiber type from all sediment samples. The most dominant type of mussels sample is fragment type and the average abundance of microplastics in the highest sample of mussels is worth 17.33 particles.ind-1.

Parigi Beach is one of the beach tourism destinations in West Java. Parigi Beach is in Kabupaten Pangandaran where is facing directly to the Indian Ocean; hence the beach wave is high and risks for beach tourism activity. Beach hazard in Parigi Beach is frequent on long holiday seasons. The research aim is to assess beach tourism safety based on wave parameters and find out the cause of danger. The result shows that Parigi Beach is an intermediate rhythmic bar and beach, which average of the breaking wave height reaches to 1,87 meter and occur beach cusps formation. The beach safety levels exhibit that low safety condition exists from March to November, while from December to February, the beach condition was categorized as moderate safety for coastal tourism activity. Rip current and shore break as the main factor of hazard beach tourism from January to February, whereas from Maret to December, hazard factors in Parigi Beach was rip current and plunging high wave. Pantai parigi merupakan salah satu tujuan wisata pantai di Jawa Barat. Pantai Parigi berada di Kabupaten Pangandaran yang letaknya berhadapan langsung dengan Samudera Hindia, sehingga gelombang di Pantai Parigi relatif tinggi dan berisiko untuk kegiatan wisata pantai. Kecelakaan wisata pantai di Pantai Parigi sering terjadi saat musim libur panjang. Penelitian ini bertujuan untuk menilai tingkat keselamatan wisata pantai tiap bulan berdasarkan parameter gelombang dan mengetahui faktor penyebab bahaya yang terjadi. Hasil penelitian menunjukan bahwa Pantai Parigi termasuk ke dalam tipe pantai intermediate rhythmic bar and beach dengan tinggi gelombang pecah rata-rata mencapai 1,87 meter serta terdapat jejak gelombang berbentuk busur di pantainya.  Untuk tingkat keselamatan wisata pantai, keadaan kurang aman di Pantai Parigi terjadi dari mulai Maret hingga November, sedangkan dari Desember hingga Februari dikategorikan pada situasi cukup aman. Faktor penyebab bahaya wisata pantai adalah Rip current dan shorebreak yang muncul pada bulan Januari dan Februari, sementara pada bulan Maret hingga Desember faktor penyebab bahaya adalah rip current dan gelombang tinggi dengan tipe plunging.