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"Degradation on coral reef ecosystem is increasing day by day due to both natural and human factors, and it is greatly affecting to the catches of fishermen. Natural damages can be caused by he tsunami, global warming, predators and so on. Whiles people are destroying the ecosystem to the lack of awareness, necessities, poverty and greed. One of the coastal ecosystem rehabilitation efforts is b making artificial reef. There are four artificial reef functions i.e. to collect marine organisms in order to improve capture efficiency (attractant); increase natural productivity by providing new habitat for sessil biota; maintain the balance of food chain cycle; and providing habitat and stimulates coral recruitment and other organism. This article present the designs, benefit and future recommendation for artificial reef management"

"MANFAAT KITIN DAN KITOSAN BAGI KEHIDUPAN MANUSIA. Udang dan kepiting merupakan salah satu komoditi ekspor non migas yang menghasilkan limbah berbentuk cangkang dan dapat dimanfaatkan dalam pembuatan kitin dan kitosan. Kitin merupakan komponen utama dari eksoskeleton invertebrata, krustase dan insekta dimana komponen ini berfungsi sebagai komponen penyokong dan pelindung. Sedangkan kitosan merupakan polimer alamiah yang sangat melimpah keberadaannya di alam sehingga merupakan bahan perdagangan yang memiliki nilai ekonomi tinggi dan dapat dimanfaatkan bagi kehidupan manusia. Kitin dan kitosan memiliki kegunaan yang sangat luas dalam kehidupan sehari-hari misalnya sebagai adsorben limbah logam berat dan zat warna, pengawet, anti jamur, kosmetik, farmasi, flokulan, anti kanker, dan anti bakteri.Tulisan ini mencoba memberikan gambaran dan informasi bahwa limbah kulit udang dapat dijadikan kitin dan kitosan yang sangat bermanfaat bagi kehidupan manusia. "

"ABSTRACTArchaster typicusis is one of the target sea star for the ornamental trade in many locations in Indonesia. The trading of this sea star is not only traditionally in the gift shop at tourism area but also in the online shop. The ecological impact related to the high exploitation of this species in Indonesia has not much been examined. This review informs about the biological and ecological aspect of Archaster typicus, including systematics, habitat shifting, burrowing behavior and mating behavior: Thus information expected to deliver a basic knowledge to the society, academicians, researchers who intend to examine the ecological role of this species and also as basic information for the future conservation management."

"ABSTRACTThe use of reference toxicant in aquatic toxicity testing is a part of efforts to obtain good quality data and it can be justified scientifically. It is used to determine the health and sensitivity of the test on organisms; to compare relative toxicities of substances by using control as an internal standard; to perform interlaboratory calibrations; and to evaluate the reproductive ability on tested data with time. Numbers of substances, such as some metals and salts, can be used as reference toxicants, but basically we must consider certain criterias in using a chemical as a reference toxicant. An ideal reference toxicant is that has a toxic at low concentrations, rapidly lethal, non selective, and detectable by known analytical techniques. The use of each reference toxicant in toxicity tests should be repeated using the same test organism to produce a data set of sensitivity. Endpoint values are then plotted on a control chart with tolerance range 2 SD. The value outside the tolerance range requires the evaluation of all test procedures and conditions of the test organisms."

"ABSTRACTThere is a long history of marine research in Indonesia, starting from mid December 1905 when Dr. J. C. Koningsbergena terrestrial zoologist,established the Visscherii Laboratorium te Batavia (Jakarta F ishery Laboratory) at Jalan Akuarium Pasar Ikan, Jakarta. During its development this institution, which was the forerunner of the Research Center for Oceanography LIPI, underwent a series of name changes, the development of its tasks and fimctions, and improvements in its institutional status font branch to national level. There were also changes in how the institution was administered, and it finally came under the auspices of the Indonesian Institute of Sciences, which was established under the Decree of the President of Republic of Indonesia Number 128/1967, 23 August 1967. To support research activities, this marine research institution has had several research vessels since it first began and, to cover Indonesian waters more widely, it also established Marine Research Stations or Technical Implementation Units in several other parts of Indonesia. Historical events happen only once and are never repeated exactly the same again, yet they can determine people Is lives, and still be remembered for all time. As the oldest institution for marine research in Indonesia, at 110 years (mid December 1905 mid December 2015), it is valuable to have an archive of facts and information about significant historical milestones, about its founder; its development, and the history of marine research in Indonesia. In addition, this is essential information for leaders and employees of the Research Center for Oceanography LIPI, both now and in the future, and may also benefit the academic community in general."

"MANGROVE CRAB UCA SPP (CRUSTACEA: DECAPODA: OCYPODIDAE). In Indonesia, many found the river estuary waters with mangrove forests are an important area for mangrove crabs. Crustacean fauna of the mangrove ecosystem is dominated by the crabs of Uca spp. this is often found in mud, forest floor, ponds and mangrove logging areas. Uca spp. is a type of crab that live in holes or soaking in the substrate and are permanent residents of mangrove forests. Crab Uca spp. can adapt well to dig holes because the water that is in the hole can help regulate body temperature through evaporation. Uca crab has important body parts as characters for identification that are: the size of the face of carapace (rostrum), orbital area (the area around the eyes), gonopode (male), gonopore (females), large claws (male) and small claws. While large claws on an adult male is a key character, so that its is very important."