Oktiyas Muzaky LuthfiBrawijaya University · Faculty of Fisheries and Marine Sciences
Oktiyas Muzaky Luthfi
Master
About
176
Publications
177,606
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
366
Citations
Introduction
Skills and Expertise
Publications
Publications (176)
Indonesia is listed as a region with high marine biodiversity, especially when considering the three large tropical ecosystems: seagrass beds, mangroves and coral reefs. It is likely that the biodiversity of diatoms in this area is also high. Samples for this research were taken from the remote area of Bawean Island and Tomini Gulf in Central Sulaw...
Reef fishes were used as bioindicators of biodiversity in coral reef ecosystems. However, coral cover and reef fish abundance around Sempu Strait tended to decrease. The study aims to obtain reef fish's community structure and biomass and their correlation to coral cover. We observed significant variability in reef fish populations through bi-month...
Kondang Merak Waters, a habitat for various hard corals that grow in flat areas of intertidal reefs, serve as a crucial location for understanding the influence of juvenile corals on the dynamics of coral communities in shallow waters. The research was conducted in 2020 in Kondang Merak, which studied the composition and abundance of young corals o...
Marine debris significantly impacts coral ecosystems, especially in regions with high biodiversity like the Sempu Island Nature Reserve in Malang, Indonesia. According to the guidelines of ReefCheck and KLHK 2020, this in-depth study looked at the types, amounts, and impacts of marine debris on coral health at five different sites close to the Pond...
The living coral cover in the Sempu Strait is known to be stuck in the range of 37% due to average data from 2009-2016. Several coral diseases have been documented in this region, which can result in the transformation of coral reefs into algae-dominated communities. This study examines the dynamic interplay between coral reefs and macroalgae withi...
Marine debris severely threatens coral reefs in Indonesia. This chapter aims to examine the effects of marine debris on coral reefs in Indonesia and explore the corrective actions implemented to solve this problem. This chapter relies on secondary data from scientific literature, government records, and environmental organisations. Land and sea was...
Marine tourism is a tourism activity carried out by utilizing coastal and marine resources. Snorkeling is an element of marine tourism that is widely practiced because it does not require special skills. On the other hand, snorkelling also can have a negative impact on coral reefs. The carrying capacity of the area needs to be considered to reduce...
The primary objective of this study was to investigate the densities and age structure of Christmas tree worms Spirobranchus sp. (Serpulidae, Polychaeta), on colonies of massive stony corals of the genus Porites, which have not been reported before in the region. Pulau Sempu, East Java, Indonesia. Pulau Sempu is a small island and also the sole rem...
Since the Dutch colonialization era, the Malang District's Sempu Strait has been designated a natural reserve. Environmental changes and human activities have contributed to the 14.28% coral cover in the Sempu Strait. This study aims to assess coral health in the Sempu Strait and detect coral diseases or compromised conditions. At five stations, da...
The Christmas Tree Worm (Spirobranchus sp.) is a biota that lives in association with hermatypic corals. This bioeroder damages the structural integrity of corals, making them susceptible to breakage. Therefore, further investigation is required to determine the distribution, diversity, uniformity, and predominance of CTW on hard corals in the Semp...
Turf algae is an organism that is an indicator of the health of coral reef ecosystems. This organism can even dominate an area and suppress coral reef cover in certain water conditions. This is of course a threat to the sustainability of an ecosystem which has an impact on the economy of the surrounding community through the amount of fish caught....
Microalgae, micro-sized plant organisms, play a crucial role in aquatic ecosystems. While many microalgae inhabit substrates or the bottom of water bodies, several types are planktonic. This study aimed to identify the types and abundance of microalgae in both sediment and water column habitats, as well as to analyse the environmental factors influ...
Diatom, Bacillariophyceae, has an important role in environmental support because these algae contribute to 25% of the oxygen supply globally and each year represent 40% of primary production by fixed carbon using photosynthesis. Diatom samples were obtained from 3 different sites in around NRPS. Cleaning diatoms analyzed using SEM for describe ult...
During a survey of the Indonesian diatoms, five Luticola D.G.Mann taxa that could not be identified, based on the available literature were discovered. Based on light microscopy, scanning electron microscope observations and comparisons with similar taxa, all of them are described as new species. All taxa were found on mosses growing on tree trunks...
Samples from coastal tropical waters of Central Sulawesi, Bangka Island and Bawean Island in Indonesia and from the Great Barrier Reef at Fitzroy Island in Queensland, Australia were analysed for species composition of diatom assemblages with a focus on Olifantiella . Whereas samples from Fitzroy Island littoral in Australia retrieved only one spec...
Due to the sensitivity of invertebrates to environmental changes, their presence can serve as an indicator of coral reef health and water quality. This study seeks to ascertain the abundance of invertebrates, the structure of the invertebrate community, and their relationship with coral cover and water quality parameters in the waters of Sempu Stra...
Sempu Island is designated as a nature reserve which is surrounded by a fairly high diversity of coral reefs. Since the high activities of fishing ports near this island, the anthropogenic pressure seriously became a threat to the biodiversity of coral reefs in this nature reserve. Continuous observation of reef fish is an important activity to mon...
Competition for space between coral reefs and macroalgae has a signifcant impact on coral cover and, consequently, on the sustainability of coastal ecosystems. This study aimed to ascertain the Sempu Strait’s substrate coverage, dominant coral reef lifeform, coral-macroalgae competition, and water quality. The Underwater Photo Transect method and t...
The fishing port, which acts as a public agency, provides services and facilitates fishing activities for fishermen. One indicator that the service provided is already optimal is the minimum number of vessels in the process of dismantling fish in the port. The study aims to find out the fishing landing system and the number of ships that landed dur...
Currently, sea turtles are marine reptiles that are under threat of extinction due to population decline caused by poaching and illegal trade. Judging from the importance of green turtle conservation to maintain sea turtle populations in Indonesia, especially in Bali, a study of the life of green turtles was reviewed and a sea turtle conservation c...
Highlight Research The endolithic bioeroders were identified. Cocconeis sp. was new for the science of euendolithic bioeroder of Scleractinian coral. SEM revealed Cocconeis sp. etch and bore of coral skeleton. Pennate diatom was present on coral cavities. Abstract Laminar coral, Montipora, contributes to the coral reef ecosystem. The laminar life f...
The exact number of coral species in Indonesia is not unclear yet, in 2002 the coral taxonomist, JEN Veron, stated 590 species, and it was supported by an Indonesian coral taxonomist, Suharsono, eight years later. The current coral species data is 605 but it is from Coral Triangle Region area (CT). The eastern of Indonesia, which is located in the...
Southeast Asia is one of the world biodiversity hotspot. The study of diatoms in this area began over a hundred years ago. However, research on taxa inhabiting terrestrial habitats are scarce. As a result, many species are still waiting to be described. In the present paper, four diatom taxa based on observation in light and scanning electron micro...
Turtles are currently on the list of marine reptiles that are threatened with extinction due to the population decline caused by green turtle poaching and illegal trade. In light of the significance of preserving green turtles as part of an effort to maintain the turtle population in Indonesia, particularly in Bali, the study of the existence of se...
Microcostatus labrisicus sp. nov., a terrestrial species, is described from mosses growing on concrete flower beds in Gaharu Park (Sambas city, Borneo Island). Its morphology was studied with light and scanning electron microscopy revealed a set of unique morphological features. The new species differs from all other Microcostatus species by having...
Ujungpangkah represents a deltaic region with one of the largest mangrove areas in East Java. This 1,554 Ha of high productivity mangrove area were designated as Essential Ecosystem Area (EEA) in 2020. However, linkage between mangrove conditions and fisheries activities within region have not been well documented. This study combines satellite rem...
Artificial reefs are structures that can be natural or artificial materials that are intentionally placed on the seabed, placed at one time or over a long period of time, and ideally will work as part of a natural ecosystem. In artificial reefs deployment, it is necessary to pay attention to several factors so that the artificial reef itself functi...
The turtle population is dwindling and it is on the "red list" of the IUCN and APPENDIX I of CITES (Convention on International Trade in Endangered Species), which means its existence in the wild is threatened with extinction. This population decline was the result of human hunting, and as a result, the species went extinct.
Turtles migrate to thei...
Coral reefs in the southern waters of Malang Regency are characterized by wide reef flat areas which are generally dominated by massive, encrusting, and branching corals. The living and growth of Scleractinian coral have limiting factors: current velocity, salinity, temperature, DO, turbidity and pH. These factors have a very important role in infl...
Parrotfish is one of dominant species in Indo-Pacific areas which have 9 genera and 83 species. In ecological perspective, the feeding behaviours of these fish very important, due to control population of algae in coral reef ecosystem. They used their jaw to excavate and scrape alga which living on coral substrata, so sometime resulted on erosion i...
Coastal ecosystems are very vulnerable to environmental changes, and one of the variables of resilience in coastal areas is wave height. Clungup Beach is one of the beaches located in South Java with the characteristics of high waves. Analysis of wave height forecasting to minimize environmental damage in the future. The wave height forecasting met...
Coral reefs are usually considered a single unit. However, in fact, reefs and corals are two different things. Reefs are the result of secretions from corals in the form of calcium carbonate. The term "coral" is generally used for both "soft" and "hard" corals and sometimes includes other colonial animals in the phylum Cnidaria (also called Coelent...
Miang Island is located at coordinates 118° 0' 20" E - 0° 44' 0" N which is administratively in Sangkulirang District, East Kutai Regency, East Kalimantan. Coral reefs on Miang Besar Island have an area of ± 218.8 ha, with the best coral cover in the waters of Sangkulirang District and one of the best in East Kutai Regency. Reef fish have an active...
Crustose Coralline Algae (CCA) are known as one of the calcifying algae which have important ecological responsibility on coral reef thus attracting coral juvenile, unstable binding substrate, source of food, and creating a substrate for some invertebrates. However, the study on the life histories of these algae was very poor when compared with cor...
Miang Island (118°0'20E-0°44'0N), located in East Kutai Regency, East Kalimantan, has an island area of 7.39 km 2 with a coastline length of about 11.73 km 2. Coral reef ecosystems can be found around the island by forming a fringing reef with an area of about ± 218.8 ha. The existence of this reef ecosystem certainly attracts a variety of biota, i...
Mangrove adalah tumbuhan yang mampu beradaptasi pada kondisi ekstrim utamanya pada daerah yang memiliki kadar garam tinggi. Identifikasi luasan hutan mangrove perlu dilakukan untuk mengetahui potensi sumberdaya yang ada disana. Hal ini dikarenakan mangrove sebagai tempat daerah asuhan (nursery grounds), tempat mencari makan (feeding grounds), dan d...
Crustose coralline algae (Corallinophycideae) are red algae that produced calcium carbonate and are well recognized as foundation species in the epipelagic zone of the marine ecosystem. These algae induced settlement juvenile of coral by released chemical cues from bacterial communities on the surface of their colonies. Their extracellular calcium...
Sempu Island is one of the marine conservation areas, which has an important function in the conservation stage, namely preservation, preservation itself means the preservation of biodiversity and protected areas in biotic and abiotic life support systems. Many problems arise on Sempu Island as a protected area due to lack of access, which triggers...
The bivalve anadara grandis is one of the most abundant shells which are easy to find in Indonesian waters. The number of clams consumed is directly proportional to the amount of clamshell waste, which the most part is only disposed into waste. Coral reef has a very important purpose in supporting activities in coastal areas. Artificial reef is a s...
Total suspended solids (TSS) are sediment material that floats in the water column that moves without touching the water bed, influenced by input from land, river flow, and water oceanography factors. TSS is closely related to sedimentation, which can harm aquatic ecosystems, especially coral reefs. This research was conducted using TSS data as wel...
Damage to coral reefs is generally caused by destructive fishing activities, they were the usega of explosives, cyanide toxic materials, coral mining for building materials, anchor boat anchors, and the results of sedimentation. Efforts to speed up the process of coral reef recovery, several methods of rehabilitation that can be done include coral...
Damage to the coral reef ecosystem in the Damas Coast waters is caused by the behavior of using fishing gear that is not environmentally friendly. Based on the problem, there is a solution to lay 25 cube-shaped artificial reefs in 2017. The condition of artificial reefs that have been placed in the waters of Damas Beach within 2.5 years needs to be...
TPI Sendang Biru berada di Kabupaten Malang memiliki potensi yang besar baik dalam bidang penyediaan pasokan ikan ataupun sarana prasarana penunjang lainnya. Pelabuhan perikanan tersebut dipersiapkan sebagai pusat pertumbuhan ekonomi perikanan di wilayah selatan Provinsi Jawa Timur. Pemerintah melalui Direktorat Jenderal Perikanan Tangkap Kementeri...
Oceanographic parameters that affect coral reef growth are clarity, temperature, salinity and water currents taken at 20 stations using AAQ Rinko 1183 and FLOWATCH FL-03 current meter. The data processing using the IDW (Inverse Distance Weighted) interpolation method and the determination of the suitability area through scoring and weighting. The i...
Damage to the coral reef ecosystem in the Damas coastal region is associated with various things such as large sedimentation due to mangrove deforestation in the upper area, destructive fishing practice, tourism activity and increasing temperature and organic material in the seawater. Fragile coral as main reef builders can recover themselves with...
Terumbu karang merupakan ekosistem yang sangat kompleks dan memiliki peran penting bagi lingkungan di laut. Life form terumbu karang dipengaruhi oleh faktor lingkungan, salah satunya adalah kedalaman. Identifikasi life form dan pengukuran persentase tutupan karang di Pantai Tiga Warna perlu dilakukan, dengan menggunakan metode line intercept transe...
Biofouling or biological fouling is the term used for colonization of hard surfaces from substrate include artificial by living organisms in the column of water. The mechanism of biofouling succession on a substrate starts biochemical condition, bacteria colonization, unicellular algae colonization, and attach of invertebrate larvae or propagule. P...
Indonesia is an archipelago country that is ranked top of the world for its breadth and wealth. More than 75,000 km 2 or almost 14% of the world's coral is in Indonesia. The growth of coral reefs in a sea water is strongly influenced by the quality of waters such as chemical oceanographic factors, namely salinity, pH, DO, nitrate and phosphate. The...
Abstrak Pantai Kondang Merak merupakan salah satu destinasi wisata pesisir yang terletak di Kabupaten Malang, memiliki ekosistem pesisir yang lengkap yaitu hutan, mangrove, terumbu karang dan lamun. Walaupun akses jalan menuju Kondang Merak masih berbentuk jalan makadam, hal itu tidak membatasi pengunjung untuk berkunjung ke Pantai Kondang Merak.Ka...
Indonesia is known as one of the world's marine biodiversity centers with its rich coral reefs. Coral growth depends on environmental conditions, which in reality do not always remain due to disruptions originating from nature or human activities. The growth of coral reefs in a sea water is strongly influenced by the quality of its waters such as c...
The condition of coral reefs in Damas Beach is included in the bad category because there are many fragments of coral reefs (rubble) caused by fishing nets caught in the reef. Based on the problem of coral reefs contained in the waters of Damas Beach, there are innovations to sink artificial reefs. The condition of artificial reefs that have been d...
Coral reef is one of the coastal ecosystems that has an important role as a place to look for food, shelter, and breeding grounds for other biotas. Besides, the ecological aspects of coral reefs as a coastal protectors from waves and abrasion. CPCe (Coral Points Count with Excel extension) is used to observe or monitoring reefs ecpsystems. The phot...
p align="center"> Abstrak
Perairan Indonesia merupakan habitat bagi berbagai spesies makro dan mikro alga. Selada laut (Ulva lactuca) adalah salah satu makroalga hijau yang secara empiris digunakan sebagai makanan oleh masyarakat Indonesia yang hidup dipesisir pantai. Pada perairan tawar, ganggang hijau ( Spirogyra porticalis ) merupakan mikroalg...
Teluk Prigi mempunyai potensi perikanan laut dengan jumlah produksi perikanan tangkap mencapai
4.108,57 ton/tahun. Potensi perikanan teluk Prigi ini diimbangi juga oleh pergerakan nutrient yang disebabkan
oleh pergerakan arus. Pergerakan nutrient di dalam perairan tentu saja tidak lepas dari faktor arus permukaan
suatu perairan. Tujuan dari penelit...
Perairan Pantai Putri Menjangan merupakan perairan pantai yang memiliki sumberdaya terumbu karangdengan kategori sedang yang terletak di Desa Pejarakan, Kecamatan Gerokgak, Kabupaten Buleleng, Bali. Karang pada Perairan Putri Menjangan tidak luput dari keberadaan predator benthik pemakan polip karang Acanthaster planci. Bintang laut yang masuk ke d...
Coral reef at nature reserve Pulau Sempu has been provided food for marine biota and became livelihood for fishermen who are living at coast nearby. Coral reef at this island can be found in periphery of island and concentrated on Sempu strait (north part area). Folious coral Echinopora lamellosa are distributed well in Sempu bay with local name Ko...
White syndrome disease (WS) has led to extensive damage to coral reef in Indo-Pacific area. The emergingof WS first reported from Philippine and Australia affected Acroporidae and Pocilloporidae coral.Subsequently, it was reported on other regions in Indo-Pacific. Underwater monitoring at Nature ReservePulau Sempu (NR Pulau Sempu) unveiled that WS...
ABSTRAK : Pantai Mapak Indah merupakan pantai yang sering menjadi pantai pendaratan biota Penyu, umumnya penyu yang mendarat berjenis penyu Lekang (Lepidochelys olivaceae), pantai yang juga di gunakan untuk aktifitas nelayan dan pariwisata diduga akan mengganggu habitat penyu yang cenderung merusak atau merubahnya. Tujuan dari penelitian ini adalah...
Tulungagung reflects the typical conditions of southern coast of Java, which dominated bay small bays with thin layer of superficial mud sediments and bordered by hilly terrain. Mangrove distribution in Tulungagung located in there locations, Brumbun Beach, Gerangan Beach and Sine Beach. This research aimed to identify the forest structure, habitat...
Biofouling or epibionts are common organisms colonize and growth in surface of any subjects in the marine environment, including on mangrove trees. Balanus sp. and Littoraria sp. are broad known as epibionts that grow from lowest low water until highest high water in Rhizopora root. The aim of this research was to know the abundance and effect of b...
Terumbu Karang adalah suatu ekositem yang bersimbiosis dengan kelompok hewan anggota filum Cnidaria yang dapat menghasilkan kerangka luar dari kalsium karbonat. Terumbu karang dikenal sebagai ekosistem yang sangat kompleks dan produktif dengan keanekaragaman biota tinggi seperti moluska, crustacea dan ikan karang. Fauna kriptik merupakan bagian pen...
Many coral diseases emerged from Sempu Island Nature Reserve water due to recent development of fisheries port, local activities and unintegrated tourism, out of which White Syndrome is one of it. White syndrome (WS) is a collective term of several types of coral disease that shows white zones such as white band I and II, white plague I and II. Kon...
White syndrome has been reported in Indo-Pacific area include in Indonesia's water. Nature Reserve Pulau Sempu has fringing reef coral that provides good and service for human and thousand invertebrates inside them. More than 10 species of hard coral have been contributing on reef development in this area including foliose coral Echinopora lamellos...
Scleractinian coral as the main builder of the reef contributes to building a complex reef framework through produce growing aragonite in their skeleton. In shallow water area (reef flat) the reef constructional process will be equal with erosional one, can be caused by mechanical damage such as storm or water motion and biological way (bioerosion)...
Abstrak Reef Check is an activity to find out the condition of coral reefs and it's another supporting ecosystem. Reef fish are important for describing the healthy condition of coral reef health. Herbivorous fish is major agent of decreasing number coral's competitor, algae, that open space to coral growth. Corallivorous fish are dependent on cora...
Coral disease prevalence is defined as the ratio of diseased coral colonies to total colonies in a certain place. Coral community health is determined by measuring coral colony health using an index based on the percentage of diseased coral colonies within a quadrat transect. Disease in coral can be triggered by environment factors. Declining seawa...
ABSTRAK Bangsring Underwater berada dekat dengan selat bali yang merupakan tempat wisata berbasis konservasi terumbu karang. Banyak transplantasi yang telah dilakukan masyarakat daerah maupun luar daerah. Setiap bulannya dilakukan monitoring terhadap terumbu karang baik transplantasi maupun yang alami. Studi ini menggunakan metode konvensional untu...
Penelitian ini bertujuan untuk mengetahui metode yang efektif untuk monitoring tutupan substrat dan untuk mengetahui kondisi substrat di Perairan Pulau Tinabo Besar. Substrat merupakan susunan dasar perairan yang tersusun dari dua komponen, yaitu biotik dan abiotik. Substrat terbagi menjadi dua kategori, yaitu living dan non-living. Pengambilan dat...
Abstrak Ekosistem terumbu karang yang sehat akan dijadikan sebagai tempat pemijahan serta ladang mencari makan berbagai biota laut. Dengan tingginya produktivitas primer dan keanekaragaman, ekosistem terumbu karang akan menjadi ekosistem yang mempunyai banyak potensi yang bermanfaat. Pulau Abang dan Pulau Abang Besar,Batam, merupakan salah satu lok...
ABSTRAK Perubahan iklim memberikan dampak yang besar di berbagai negara. Adapun dampak dari terjadinya perubahan iklim adalah bertambahnya intensitas kejadian cuaca ekstrim di suatu wilayah, perubahan pola hujan, serta peningkatan suhu dan permukaan air laut Dampak perubahan iklim dapat memengaruhi keadaan di daratan maupun di pesisir atau laut. Sa...
ABSTRAK Isu konservasi telah menjadi perhatian global sekaligus menjadi isu strategis di berbagai negara termasuk di Indonesia. Pengelolaan potensi sumberdaya pesisir dan pulau-pulau kecil harus sejalan dengan upaya perlindungan dan pelestariannya. Kebutuhan akan rencana penyusunan zonasi kawasan konservasi perairan di wilayah Kabupaten Banyuwangi...
Coral reef is a massive natural building block that mainly composed of hard coral. In ecological view coral reef is the center of biological activity for shelter, foraging and feeding place. Porites lutea is a common coral in reef flat area such as in Pantai Kondang Merak. This coral can form a massive with hillocky colony surface and has a slow li...
Coral reef ecosystems are increasingly threatened as a result of various activities that are anthropogenic one of them is the entry of heavy metals into waters that threaten coral health. The reef area of Pantai Kondang Meraka is dominated by coral with massive growth form as a form of coral adapatasi to strong currents and waves. Cadmium (Cd) is b...
Abstrak Penelitian ini dilaksanakan guna mensurvei substrat di perairan Sempu Kabupaten Malang menggunakan metode reefcheck (PIT: Point Intercept Transect). Substrat perairan dapat dibagi menjadi dua macam, antaralain living/substrat hidup (HC = Hard Coral/karang keras, SC = Soft Coral/karang lunak, NIA = Nutrient Indicator Algae/ alga, SP = Sponge...
Penelitian ini dilaksanakan guna mensurvei substrat di perairan Sempu Kabupaten Malang menggunakan metode reefcheck (PIT: Point Intercept Transect). Substrat perairan dapat dibagi menjadi dua macam, antaralain living/substrat hidup (HC = Hard Coral/karang keras, SC = Soft Coral/karang lunak, NIA = Nutrient Indicator Algae/ alga, SP = Sponge/ spons,...