Ambo Tuwo

The octopus is a type of fishery commodity with significant economic value in both local and domestic markets. The rise of irresponsible octopus fishing activities, particularly in the waters of the Spermonde Archipelago, has become a growing concern. Sustainable management of octopus fisheries is necessary to prevent the exploitation of resources....

The white spotted rabbitfish (Siganus canaliculatus Park, 1797) is a locally important foodfish across much of Indonesia. This study aimed to support population dynamics-based fisheries management of white spotted rabbitfish stocks in the Makassar Strait and Gulf of Bone through providing data on age classes (cohorts), growth, mortality, and exploi...

Seaweeds of the genus Gracilaria are an important aquaculture commodity, commonly cultured in brackish water ponds as well as in coastal waters. In South Sulawesi, Indonesia, the Gracilaria acultured in ponds has been named G. verrucosa, while Gracilaria cultured in coastal waters has been named G. gigas. Morphologically, these two types of Gracila...

Pencemaran logam di perairan yang semakin meningkat akan menyebabkan menurunnya kualitas air sehingga dapat memengaruhi kehidupan organisme yang hidup di dalamnya. Salah satu upaya untuk meminimalisir kadar logam yang mencemari perairan adalah dengan memanfaatkan makroalga laut yang mampu menyerap logam yang ada di perairan. Penelitian ini bertujua...

Massiseng ANA, Tuwo A, Fachry ME, Bahar A. 2022. Characteristics of plastic waste and perceptions of coastal communities in the MLC Baluno mangrove ecotourism area, West Sulawesi, Indonesia. Biodiversitas 23: 6262-6274. Plastic pollution is a global problem that threatens coastal and marine ecosystems and human livelihoods and requires effective so...

The waters in Youtefa Bay have degradation due to the transition from mangrove areas to industrial sites, housing, bridge construction and household waste disposal. Water degradation has indirectly affected the growth of plankton. Plankton consists of phytoplankton which is the primary producer of the food chain so that it is utilized by zooplankto...

Sari A, Tuwo A, Saru A, Rani C. 2022. Diversity of fauna species in the mangrove ecosystem of Youtefa Bay Tourism Park, Papua, Indonesia. Biodiversitas 23: 4490-4500. Youtefa Bay Tourism Park is a mangrove ecosystem in Jayapura City, Papua, Indonesia with high importance for biodiversity conservation as well as providing livelihood for local commun...

Food security is a serious problem. This chapter outlines how seaweed could improve food security and promote environmental mitigation using the holistic-integral approach. Actual conditions that are not expected due to the problems encountered can be resolved if the development paradigm and the existing strategic environmental conditions are consi...

Seaweed is a high economic commodity, but it does not contribute much to community welfare; therefore, this chapter outlines how seaweed cultivation could improve community welfare in coastal areas and small islands using the holistic-integral approach S-O-M (Subject, Object, and Method) Analysis. The actual seaweed cultivation condition is a low c...

The high activity around Youtefa Bay has an impact on the rate of sedimentation, turbidity of river and seawater, increased industrial waste and changes in the function of mangrove land into a ring road or settlement, which causes forest function degradation, which results in several mangrove areas being reduced and even damaged, based on This requ...

The Spermonde Islands are part of the mega diversity area in the world's coral triangle area, crossed by the Wallace line. The Spermonde Archipelago consists of 120 islands spread over four zones: the inner zone, middle inner zone, middle outer zone, and outer zone. Samalona Island is located in an inner zone with a high level of eutrophication, an...

Askar H, Tahang H, Sutinah S, Fakhriyyah S, Bahar A, Tresnati J, Tuwo A. 2021. Short Communication: Using ecological parameters to assess the sustainability of mangrove ecotourism in Jeneponto, South Sulawesi, Indonesia. Biodiversitas 22: 3571-3577. Mangrove forest is an essential ecosystem that provides various ecosystem services. Among various la...

Aquaculture is an oxygen-dependent business; heterotroph biomass production is proportional to the oxygen supply to the aquaculture pond, therefore, intensive and supra-intensive aquaculture requires a large supply of oxygen. The use of paddle wheel aerators and the types of aerators available in the market today are generally wasteful in terms of...

The blue-barred parrotfish Scarus ghobban is a reef fish that has not been a target fish in the past, but is now becoming a target fish. The blue-barred parrotfish is a monochromatic fish, so that the sex of individual cannot be identified based on secondary sexual characters. This research aimed to determine whether the blue-barred parrotfish is p...

Gracilaria changii is a seaweed species that is widely cultivated in brackish water ponds. G. changii cultivated in brackish waters will face high salinity problems in the dry season. This study aimed to analyse the effect of salinity on the growth of G. changii . The study was conducted in a controlled tank which was allowed to evaporate naturally...

Eucheuma spinosum is a species of seaweed widely cultivated in Indonesia. This seaweed contains high carrageenan, ranging between 65-67 percent. Carrageenan plays a very important role as a stabilizer, thickener, gel maker, emulsifier and others. This property is widely used in the food industry, medicine, cosmetics, textiles, paints, toothpaste an...

The sandfish Holothuria scabra is a sea cucumber with a very high economic value. Sandfish cultivated in brackish water ponds will face a high salinity problem in the dry season. This study aimed to analyse the effect of high salinity on sandfish mortality. The study was done in a controlled tank in which the sea water was allowed to evaporate natu...

Ecotourism is a fast growing tourism industry. Ecotourism is superior to other tourism because it can give economic benefits and preserve natural resources. The potential of Indonesian ecotourism, especially South Sulawesi has not been optimally utilized; therefore it is necessary to study its development potential. This study aims to analyze the p...

High mortality of sandfish Holothuria scabra broodstock is one of the main problems in sea cucumber hatcheries. Broodstock collected from wild are very difficult to keep alive for long periods because the broodstock readily eviscerate. One cause of evisceration and death is probably due to the presence of peanut crabs Pinnotheres halingi in body ca...

The Nile Tilapia Oreochromis niloticus is considering as a pest in shrimp farming ponds, as it is a shrimp competitor and predator of benthic organisms. This study aims to determine the effective and efficient saponins doses to eradicate tilapia without causing shrimp mortality. The study used two different saponins doses (200 kg/ha and 100 kg/ha)...

The rivulated parrotfish Scarus rivulatus is a reef fish that use not to be a target fish, but is now becoming a fisheries target. This change in status is causing the rivulated parrotfish population to be depressed due to fishing effort and interspecific and intraspecific competition in their habitat. This research aimed to examine the parrotfish’...

Groupers ( Epinephelus ) are economically important fish. Gracilaria changii is a red alga with a high economic value that is widely cultivated in brackish water ponds. In this study, Epinephelus fuscoguttatus and G. changii were polycultured in a multitrophic microcosm model. This study aimed to evaluate the possibility of these two species being...

Kappaphycus alvarezii is one of the two main species of seaweed commodities cultivated in Indonesia. K. alvarezii more popularly known as Eucheuma cottonii , is belongs to the red algae. This seaweed is one of the most important commercial sources of carrageenans, a family of gel-forming, viscosifying polysaccharides. Carrageenans are used as gelli...

This research aims to study the genetic variation of Rabbit fish in the waters of Makassar Strait and Bone Bay with Random Amplified Polimorfhic DNA (RAPD) method. The Rabbit fish samples obtained from three population, Makassar Strait waters (Parepare and Takalar) and Bone Bay waters (Luwu Regency). 9 fish from each population preserved with TNES...

The study aimed at determining the potential, characterization and utilization of super-intensive shrimp pond solid waste as a raw material for organic fertilizer, and its application in fisheries and agriculture. It was conducted at Experimental Pond Installation, Research Institute for Coastal Aquaculture and Fisheries Extension located in Punaga...

Coral reefs are the most diverse ecosystems on the Earth. They are habitat for many species of marine organisms, and offer a plethora that benefit to human life. Coral reef brings in enormous funds to coastal countries through tourism, fishing, and discoveries of new biochemical and drugs. Coral reef, together with mangrove ecosystems and seagrass...

Mangrove forest is the habitat of many species organisms that have economic and ecological benefits. The economic benefits are the producer of food, drinks, medicines, building materials, and ecotourism site. The ecological benefits are the coastal protectors from tsunami, erosion, sediment trap, prevent sea water intrusion, and other coastal ecosy...

In this study, seaweed polysaccharides (alginate and carrageenan) were modified with dodecenylsuccinic anhydride (DSA), and their stabilising properties in oil-in-water (O/W) emulsion system were evaluated. The physicochemical characteristics were determined by droplet size, interfacial tension and f-potential and structurally verified by Fourier t...

The objectives of this study were to analyse the weight gain and carrageenan content of the seaweed Kappaphycus alvarezii polycultured with Sargassum polycystum seed. The study was conducted in the coastal waters of Aeng Batu-Batu Village, Takalar Regency, South Sulawesi, Indonesia from July 13, 2016 to September 7, 2016. A Complete Randomized Desi...

Demand for bioethanol in Indonesia will increase with the increase of energy need. Seaweeds, Gracilaria verrucosa and Eucheuma cottonii containing high cellulose content are considered very suitable to be developed in Indonesia and can be used as a raw material for low cost bioethanol production. The seaweeds were obtained from Mandalle, Pangkep Re...

Productions and utilizations of organic fertilizers originating from solid waste of super intensive shrimp farms to reduce the amount of wastewater released to the surrounding areas and its environmental impacts, are recommended to support both aquaculture and agriculture industries. This study was aimed to evaluate growth of natural feed (plankton...

Good water quality is extremely important to support the life of the organism. The determination of water quality status was needed as a reference to monitor water pollution. This study aimed to assess the status of water quality and determine the pollution index based on physical-chemical parameters in the Youtefa bay tourism area. Sampling was ca...

This study aims to identify and determine the composition of fish species. Sampling was carried out from July 2019 to January 2020 in Youtefa Bay. Fish sampling was conducted by using gill nets. Fishes were caught once in each month during the research period. The result showed of 562 individuals in 53 species of 26 families. Hypothermia barnesi (1...

This research aims to study the genetic variation of Rabbit fish in the waters of Makassar Strait and Bone Bay with Random Amplified Polimorfhic DNA (RAPD) method. The Rabbit fish samples obtained from three population, Makassar Strait waters (Parepare and Takalar) and Bone Bay waters (Luwu Regency). 9 fish from each population preserved with TNES...

Figure 1. Three specimens of Pseudocolochirus sp. at the processor shop, at Barang Lompo Island, southwest Sulawesi, Indonesia. Observation On 20 December 2016, during a visit with sea cucumber processors on Barang Lompo Island, Spermonde Archipelago, southwest Sulawesi, Indonesia (see contribution on p. 99, this issue), several specimens of a spec...

The phenomenon of global warming is an increase in the earth's temperature due to the greenhouse effect where 50% of the main contributors to the greenhouse effect are carbon dioxide (CO2). Carbon dioxide is one of the ingredients needed for photosynthesis. Photosynthesis is carried out by plants that have chloroplasts. Plants in the waters are Sea...

The study aimed at determining the potential, characterization and utilization of super-intensive shrimp pond solid waste as a raw material for organic fertilizer, and its application in fisheries and agriculture. It was conducted at Experimental Pond Installation, Research Institute for Coastal Aquaculture and Fisheries Extension located in Punaga...

Coral reefs are currently suffering from serious degradation due to human activities. In 2015, the condition of coral reefs in Kapoposang Island has been very poor with the live coral cover only 16%. Therefore, the coral reef ecosystem on this island needs to be rehabilitated. This study aims to assess coral cover based on the age of transplantatio...

Fecundity is an important parameter of the life-history strategies which has not been documented for many halothrians. Absolute and relative fecundities (related to body wall and ovary weights) have been evaluated for three common species from Brittany. The Aspidochirote Holothria forskali has been sampled in four sites, for several years, to exami...

Mangrove ecotourism is one of the important tourism in the coastal area. Mangrove ecosystems not only have physical and biological functions, but also have socioeconomic functions, including tourism potential. Utilization of mangrove areas to be ecotourism areas is an alternative that is very likely and high strategic, considering that ecotourism a...

Penelitian ini bertujuan untuk mengetahui pengaruh konsentrasi pupuk conwy terhadap pertumbuhan rumput laut Gracilaria sp. yang dibudidayakan dalam skala laboratorium. Penelitian ini dilaksanakan di Laboratorium Multitrofik Pusat Kegiatan Penelitian Universitas Hasanuddin Makassar. Metode yang digunakan adalah metode eksperimental RAL (Rangkaian Ac...

Yellowfin parrotfish Scarus flavipectoralis has a wide distribution in Indo-Pacific waters which has an important ecological role in maintaining the balance of coral reef ecosystems, as well as having important economic values that need to be managed sustainably. This study aims to analyze the sex ratio, gonad maturity stage, and the size at first...

The supply of broodstock is a critical limitation on aquaculture of the commercially important sea cucumber Holothuria scabra . Previous research reported that H. scabra mature at a size of more than 450 g. This size is questionable because biologically primitive organisms such as H. scabra mature relatively early. This study aimed to analyze the s...

Longhorn cowfish Lactoria cornuta is a boxfish species from the Ostraciidae family which inhabit in Indo-Pacific waters. This fish can reach lengths up to 50 cm. This fish has high economic value and traded as ornamental and fresh fish. Longhorn cowfish is a favorite fish at the seafood restaurants. It is caught by many fishermen in the waters of t...

Sandfish culture had been implemented for more than 20 years but has frequently failed to yield the expected results due to low survival rates. A decrease in salinity during the rainy season was suspected as a cause of sandfish mortality. This study aimed to assess the influence of salinity on sandfish survival rates. Treatments included sudden sho...

Indian parrotfish Chlorurus capistratoides live in abundance in the Indo-Pacific region. Indian parrotfish is one of seven new species found in Indonesian waters, one of 34 species of economically important parrotfish caught in the waters of Spermonde, South Sulawesi. This study aims to examine the sex ratio, gonad maturity stage, and the size at f...

Sea cucumber is an Echinoderm which has high economic value due to their high nutritional value and medicinal properties. More than 80% of Indonesia’s sea cucumber productions were exported as dried products. Therefore, before being exported, sea cucumbers go through processing, which was almost carried out on a household scale whose processing and...

Intensive shrimp cultures are characterized by high stocking densities and use large quantities of artificial feed. The artificial feed was consumed only a small part by shrimp, while the rest decomposes in ponds and produces inorganic nitrogen compounds such as ammonia, nitrite, and nitrate, which are poisonous to shrimp and decrease water quality...

Orange-dotted tuskfish Choerodon anchorago was a Labridae family that could be found in coral reef and seagrass ecosystems. Orange-dotted tuskfish has a wide distribution in Indo-Pacific waters which has an important economic value that needs to be managed sustainably. This study aims to analyze the sex-ratio and maturity of orange-dotted tuskfish....

Kappaphycus alvrezii has the potential to be developed due to the increasing demand for local and international markets. To support the development of Kappaphycus alvrezii cultivation, a new feasible cultivation area is needed. This study aims to analyze the feasibility of Kappaphycus alvarezii farming in North Pulau Laut District and Pulau Laut Ti...

Blackeye thicklip wrasse Hemigymnus melapterus is a Labridae that was widespread throughout the tropical and subtropical waters of Indo-Pacific. In eastern Indonesia, blackeye thicklip wrasse found from the Strait of Bali, Mentawai Islands, Raja Ampat Islands, Manado and surrounding areas, and Banggai; while in central Indonesia, blackeye thicklip...

Heavy metal pollution in waters is increasingly spreading. It can cause water quality degradation that could affect the life of different organisms. One effort to reduce the concentration of heavy metals in waters is the use of macroalgae as biosorbent. This study aims to analyze the ability of Sargassum in living and dry conditions as a sorbent of...

The white spotted rabbitfish (Siganus canaliculatus Park, 1797) is a locally important foodfish across much of Indonesia. This study aimed to support population dynamics-based fisheries management of white spotted rabbitfish stocks in the Makassar Strait and Gulf of Bone through providing data on age classes (cohorts), growth, mortality, and exploi...

Ecologically, the mangrove forest is a feeding and nursery ground for around 60% of fish that live in coastal fisheries; and economically, the mangrove forest is an important fishery area. The study aims to analyze the area and condition of vegetation from mangrove planting in the Wallacea Region, Bone Bay, South Sulawesi, namely in Sinjai District...

As the largest trepang producer in the world, Indonesian trepang product still depends on wild catches. This wild catch could cause overfishing. In many fishing areas, sea cucumber populations have decreased to the point where they can be considered as a rare species. The wild catch could lead to a negative impact on size at maturity. Biologically,...

Sea cucumbers are marine invertebrate animals that have high economic value. Indonesia is the main exporter of trepang over the world; however, this trepang export has not yet contributed to the improvement of community welfare. The low quality of trepang produced by Indonesia makes the economic value of trepang was still low. The low quality was c...

Parrotfishes have an important ecological role in the coral reef ecosystem of the Spermonde Islands. The Spermonde Islands is located in the Makassar Strait, who was Wallace’s line trajectory. The Spermonde Islands consist of 120 islands, which have an area of around 2,500 km ² , consisting of 50 vegetated islands and 70 non-vegetated sand dunes. V...

Coral reefs are currently suffering from serious degradation due to human activities. In 2015, the condition of coral reefs in Kapoposang Island has been very poor with the live coral cover only 16%. Therefore, the coral reef ecosystem on this island needs to be rehabilitated. This study aims to assess coral cover based on the age of transplantatio...

The cultivation of super-intensive shrimp with high density has consequences on the burden in the form of waste as the aquaculture activities product affecting the habitat feasibility for the aquatic organisms and the environment of fisheries. Super intensive shrimp in the form of solid waste has the potency to use as the raw material of organic fe...

Currently, the red alga Kappaphycus alvarezii is the species most commonly cultivated by seaweed farmers in the tropical Indo-Pacific. Seaweed farming over coral reefs is thought to have a negative impact on scleractinian corals. This study aims to determine the effect of K. alvarezii aquaculture over coral reefs on the recruitment of scleractinian...

Rabbit fish (Siganus canaliculatus) is very common in the marine coastal waters of Luwu, Bone Bay, South Sulawesi. The aim of the study is to assess the Length-Weight Relationship and Condition Factor of this species. A total of 1686 specimens consisting of 1277 males and 409 females were randomly collected on a monthly basis between February 2017...

Rabit fish (Siganus canaliculatus) is one of the fishery commodities in Indonesian coastal area. These fishes have an economical value, support the coastal community and and are an important protein resource. This study aimed to examine and compare the morphometric characteristics of rabbit fisht that cought from Makassar Strait, Flores Sea, and Bo...

White-spotted spinefoot Siganus canaliculatus (Park, 1797) is an economically important fish that lives in coral reef, seagrass, and mangrove ecosystems. The white-spotted spinefoot is a favorite fish in seafood restaurants, so it is a major fishing target. If the fishing is not regulated, it could threaten the sustainability of white-spotted spine...

Rabbit fish (Siganus canaliculatus) is very common in the marine coastal waters of Luwu, Bone Bay, South Sulawesi. The aim of the study is to assess the Length-Weight Relationship and Condition Factor of this species. A total of 1686 specimens consisting of 1277 males and 409 females were randomly collected on a monthly basis between February 2017...

The redbreasted wrasse Cheilinus fasciatus is an ornamental fish exploited for the marine aquarium trade. Even though it has white flesh, the redbreasted wrasse is not popular as a food fish because the flesh is quite thin. The redbreasted wrasse is widely distributed in the Indian and Pacific Oceans. It lives in tropical waters at depths of 4 to 6...

The dusky parrotfish Scarus niger is an important economic fish. Like other reef fish that have good taste, white and thick meat, and don’t have a lot of tiny bones, the dusky parrotfish is a fine food fish. The dusky parrotfish has a very wide distribution in tropical and subtropical sea waters. This study aimed to validate the maturity stage desc...

Seaweeds of the genus Gracilaria are an important aquaculture commodity, commonly cultured in brackish water ponds as well as in coastal waters. In South Sulawesi, Indonesia, the Gracilaria acultured in ponds has been named G. verrucosa , while Gracilaria cultured in coastal waters has been named G. gigas. Morphologically, these two types of Gracil...

The sandfish Holothuria scabra is a benthic animal of high ecological and economic value. The high economic value of sandfish has led to declining populations due to overfishing. Initiatives to improve sandfish production have included restocking, sea-ranching and aquaculture (captive breeding and grow-out). These initiatives require a supply of an...

Sea cucumbers are fisheries commodities that have important economic value. Indonesia is the largest producer of sea cucumbers in the world, and South Sulawesi Province is the largest producer of sea cucumbers in Indonesia. Although the export volume of Indonesian dried sea cucumbers or trepang is large, the export value is not high due to the low...

Wrasses are reef fish that play an important role in maintaining the health of coral reef ecosystems. Some species of wrasse, such as the Napoleon wrasse Cheilinus undulates , have high economic value and are threatened with overexploitation. This study aims to analyse the species diversity of wrasses caught by fishermen operating in the Spermonde...

Parrotfishes, aside from playing an important ecological role in coral reef ecosystems, are an economically important fish group exploited for human consumption. Excessive exploitation of parrotfishes could cause ecological disturbances in the coral reef ecosystem. This study aimed to examine the species composition and population dynamics of parro...

The rabbitfish Siganus canaliculatus population has been exploited intensively in the Jeneponto Regency South Sulawesi by fishermen used non selective fishing gear, throughout the year even the spawning season. The intensive fishing without management policy can caused decreasing of the rabbit fish population, and if it continues population will be...

Sandfish Holothuria scabra is a species of high economic value that causes sandfish to be the most captured sea cucumber species, and is an important source of income for fishermen in coastal villages. Sandfish capture causes already over fishing. If the wild population of sandfish is not managed properly, over fishing could cause sandfish extincti...