scholarly journals Stichopodidae (Holothuroidea: Echinodermata) from Nyamuk Island, Karimunjawa National Park, Central of Java, Indonesia

2021 ◽  
Vol 919 (1) ◽  
pp. 012024
Author(s):  
R Hartati ◽  
A Ambariyanto ◽  
W Widianingsih ◽  
R T Mahendrajaya ◽  
M Mustagfirin ◽  
...  
Keyword(s):  
National Park ◽  
Sea Cucumber ◽  
Sustainable Use ◽  
Morphological Characters ◽  
Sea Cucumbers ◽  
Sea Ranching ◽  
The Subject ◽  
Increasing Demand ◽  
Park Area ◽  
Stichopus Horrens

Abstract Sea cucumbers have been the subject of increased worldwide interest for scientific knowledge, sustainable use and conservation purposes. One family found in Karimunjawa National Park Area, Jepara was Stichopudidae. The present work was aimed to identify the species of Stichopudidae caught from the waters around Nyamuk Island, Karimunjawa National Park prior to sea ranching for their conservation. The samples were taken during 2018-2019 directly from fisher, processor, traders and wholesaler. By fisher, collections relied on free diving (in depth of 5-10 meters); diving with compressor (in depth of 10-25 meters) and all sea cucumbers were capture by hand. In the processors, the species were samples taken before being processed. They usually were gutted/un-gutted, boiled, smoked or brined. The identification was done through their morphological characters. There were eleven species found belonged to two genera (Stichopus and Thelenota), i.e. Stichopus horrens, S. pseudohorrens, S. naso, S. vastus, S. chloronatus, S. herrmanni, S. monotuberculatus, S. ocellatus, S. quadrifasciatus, Thelenota anax and T. ananas. All Stichopodid sea cucumber called as gamet or gamat by all stake holders of sea cucumber fisheries. With the increasing demand and good price of these species, the conservation effort, especially through sea ranching was urged to be done.

scholarly journals Reproductive activity and morphometric assessment of three commercial species of sea cucumber (Echinodermata) from Karimunjawa National Park, Indonesia

2021 ◽  
Vol 22 (8) ◽  
Author(s):  
Mustagfirin MUSTAGFIRIN ◽  
Diah Permata Wijayanti ◽  
Subagiyo SUBAGIYO
Keyword(s):  
National Park ◽  
Sea Cucumber ◽  
Large Scale ◽  
Reproductive Activity ◽  
Market Demand ◽  
Sea Cucumbers ◽  
Gonad Somatic Index ◽  
Commercial Species ◽  
Morphometric Assessment ◽  
Somatic Index

Abstract. Mustagfirin, Wijayanti DP, Subagiyo. 2021. Reproductive activity and morphometric assessment of three commercial species of sea cucumber (Echinodermata) from Karimunjawa National Park, Indonesia. Biodiversitas 22: 3333-3341. Sea cucumbers are benthic animals that have economic value and play an important role in the environment. Exploitation on large scale to fulfill high market demand, caused overexploitation. The number of sea cucumbers in Karimunjawa decreased as a result of limited management. There is no study conducted on the commercial sea cucumbers (Holothuria edulis, Pearsonothuria graeffei, and Bohadschia vitensis) in Nyamuk Island, Karimunjawa. The objectives of the research were to determine the morphometric assessment and the reproductive cycle of the three species. The morphometric assessment of weight showed that the weight of H. edulis ranges 247.3-2539g, P. graeffei 415.3-428.1g, and B. vitiensis 672.4-678.1g, respectively. The first maturity size of gutted body weight (GWB50) for H. edulis was 127.84g, P. graeffei 357.61g, and B. vitiensis 279.34g. The gonad somatic index (GSI) range 13.60-15.60% for H. edulis, 14.75-12.25% for P. graeffei and 10.83-14.57% for B. vitiensis. The result of gonad somatic index with a value above 10% means that it has entered the spawning phase. The above data indicated that the three commercial species spawned monthly, during new moon. It is likely that the spawning peak occurred when the temperature was increased. However, the pattern of reproductive activity in this study was limited at Nyamuk Island. Future studies are needed to observe whether there is a correlation between the increasing water temperature and the reproductive activity of the three sea cucumbers.

scholarly journals PEMULIHAN STOK TANGKAPAN PERIKANAN TERIPANG DI KEPULAUAN SERIBU: SUATU PENDEKATAN EKOSISTEM

2018 ◽  
Vol 9 (2) ◽  
pp. 235
Author(s):  
Am Azbas Taurusman ◽  
Dadang Shafrudin ◽  
Tri Wiji Nurani ◽  
Didin Komarudin
Keyword(s):  
National Park ◽  
Sea Cucumber ◽  
Habitat Degradation ◽  
Monitoring And Evaluation ◽  
Ecosystem Approach ◽  
Sea Cucumbers ◽  
Tourist Attractions ◽  
Local Institution ◽  
Seagrass Ecosystems ◽  
Thousand Islands

<p align="center"><strong><em>ABSTRACT</em></strong><strong><em></em></strong></p><p class="TubuhTulisanAll"><em>Kepulauan Seribu known as Thousand Islands is one of the sea cucumbers producing centers in Indonesia. Sea cucumber has been considered as one of the fishery export commodities with high selling prices.  In the last two decades, the catch has been indicating a serious declining.  The high intensity of catching and habitat degradation are two main factors that threaten the sustainability of sea cucumber fisheries.  In order to recovery the stock, a restocking program in frame of ecosystem approach to fishery has been piloted in Thousand Islands, Jakarta. This research covers the bio-technical aspects of sea cucumber fisheries in an integrated manner with the ecosystem approach. </em><em>There were </em><em>several </em><em>steps in conducting the restocking study, namely</em><em> the</em><em> </em><em>study </em><em>of habitat status and feasibility, prepar</em><em>ation of maintenance sites for biota</em><em>, seed </em><em>spreading</em><em>, monitoring and evaluation. A well coordination and collaboration with  local institution</em><em>s</em><em> (Kepulauan Seribu National Park) was needed to build previously. </em><em>The results of the study indicated that efforts to restore sea cucumber fisheries should be integrated with conservation of seagrass ecosystems which as sea cucumbers habitat and a proper maintenance system.  Eight species of sea cucumbers, consist of 4 species of Holothuridae (Bohadschia bivittata, Actinopyga lecanora, Holothuria leucospilota, H. scabra), and 4 species Stichopodidae (Stichopus herrmanni, S. ocellatus, S. horren, S. monotuberculatus) have been identified and restocking in this area. </em><em>The released biota can live and grow well and breed at the research site.</em><em> </em><em>The construction of seagrass-based sea cucumber ecosystem restocking system has become one of the new tourist attractions integrated with the Thousand Islands National Park tourist facilities, which are very attractive to visitors.</em></p><p class="TubuhTulisanAll" align="left"><strong><em>Keywords:</em></strong><em> ecosystem approach fishery</em><em> </em><em>managemen</em><em> </em><em>(EAFM), restocking, sea cucumbers fishery, seagrass ecosystem</em><em></em></p><p class="TubuhTulisanAll" align="center"><strong>ABSTRAK</strong></p><p class="Abstrakisi">Kepulauan Seribu merupakan salah satu sentra penghasil teripang di Indonesia. Teripang merupakan salah satu komoditi ekspor perikanan dengan harga jual yang tinggi. Dalam dua dekade terakhir, tangkapan teripang telah menunjukkan penurunan tajam.  Tingginya intensitas penangkapan dan degradasi habitat merupakan dua faktor utama yang mengancam keberlanjutan perikanan teripang. Salah satu upaya untuk pemulihan stok teripang melalui pendekatan ekosistem telah diujicobakan di wilayah Kepulauan Seribu, Jakarta. Tulisan ini mencakup aspek bio-teknis upaya pemulihan perikanan teripang secara terintegrasi dengan pendekatan ekosistem.  Upaya pemulihan dilakukan melalui beberapa tahap, yaitu studi status dan kelayakan habitat, penyiapan wadah pemeliharaan biota, penebaran benih, monitoring dan evaluasi. Sebelum kegiatan dilakukan, terlebih dahulu melakukan koordinasi dengan institusi lokal (Balai Taman Nasional Kepulauan Seribu). Hasil kajian menunjukkan bahwa upaya pemulihan  perikanan teripang harus diselaraskan dengan upaya konservasi ekosistem lamun sebagai habitat teripang dan sistem pemeliharaan yang layak secara teknis. Delapan spesies teripang, terdiri dari 4 spesies Holothuridae (<em>Bohadschia bivittata, Actinopyga lecanora, Holothuria leucospilota, H. scabra</em>), dan 4 species Stichopodidae (<em>Stichopus herrmanni, S. ocellatus, S. horren, S. monotuberculatus</em>) telah terindentifikasi dan di-<em>restocking</em> di lokasi ini. Biota yang dilepas dapat hidup dan tumbuh dengan baik dan berkembangbiak di lokasi penelitian. Konstruksi sistem <em>restocking</em> teripang berbasis ekosistem lamun telah menjadi salah satu obyek wisata baru terintegrasi dengan fasilitas wisata Taman Nasional Kepulauan Seribu, yang sangat menarik bagi pengunjung.</p><strong>Kata kunci:</strong> pendekatan ekosistem (EAFM), restocking, perikanan teripang, ekosistem lamun

scholarly journals Community structure of sea cucumber on Harapan Island and East Penjaliran Island, Kepulauan Seribu National Park, Indonesia

2021 ◽  
Vol 919 (1) ◽  
pp. 012025
Author(s):  
T R Yuniarga ◽  
T B Satriyo ◽  
R I Adharini
Keyword(s):  
National Park ◽  
Sea Cucumber ◽  
Diversity Index ◽  
Data Retrieval ◽  
Quality Parameters ◽  
Marine Animals ◽  
Sea Cucumbers ◽  
Distribution Index ◽  
Stichopus Monotuberculatus ◽  
Holothuria Atra

Abstract Sea cucumbers are marine animals of the Holothuroidea Class that have ecological, health, and socioeconomic benefits. This study aims to determine the structure of the sea cucumber community on Harapan Island and East Penjaliran Island, Kepulauan Seribu National Park, Kepulauan Seribu Regency. Data collection was conducted in January 2020, where each island was divided into two stations, and each station was divided into three substations for data retrieval. The method is a quadratic transect method using a plot measuring 1x1 m. In each square plot, observations were made regarding the type and number of sea cucumbers found and water quality parameters, including salinity, temperature, pH, DO, and total organic matter. Observation parameters include diversity index, uniformity index, frequency, density, important value index, dominance, and sea cucumber distribution index. During the study, species found on Harapan Island include H. atra, H. scabra, H. leucospilota, Bohadschia marmorata, and Stichopus herrmanni. Meanwhile, species found on East Penjaliran Island include H. atra, H. leucospilota, H. coluber, H. pardalis, H. fuscocinerea, H. hilla, Bohadschia marmorata, Stichopus ocellatus, and Stichopus monotuberculatus. The most abundant and predominant species on both islands is Holothuria atra. The average diversity index on Harapan Island falls into the low category, while East Penjaliran Island is classified as medium. The dominance index of both islands is low and has a uniform distribution. Environmental conditions and sea cucumber exploitation affect the structure of sea cucumber communities on both islands.

scholarly journals The Diversity of Holothurioidea in the Intertidal Zone of the Pancur Shore of the Alas Purwo National Park

2015 ◽  
Vol 16 (1) ◽  
pp. 23 ◽  
Author(s):  
Riya Wulan Afrely ◽  
Moh. Imron Rosyidi ◽  
Susantin Fajariyah
Keyword(s):  
Species Diversity ◽  
Intertidal Zone ◽  
National Park ◽  
Sea Cucumber ◽  
Wave Motion ◽  
Diversity Index ◽  
Abiotic Factors ◽  
Species Diversity Index ◽  
Sea Cucumbers ◽  
Benthic Animals

Holothurioidea well known as Sea Cucumber is one of the classes from the Echinodermata phylum. Sea cucumbers are benthic animals that move slowly. Currently they already identified about 1135 species. Their existence usually associated with abiotic factors such as water salinity, temperature, pH, wave motion, light intensity and the substrate. The ability of the Holothurioidea to adapt to the abiotic factors will affect species diversity. The research aims is to determine the species diversity in the intertidal zone at Pancur Shore of the Alas Purwo National Park. It includes the species composition, species diversity index and the index of equality The study was conducted on 14th-21st of June 2014, by using systematic plotting transect method. The results found: one order, one family, two generas and eight species. The Species diversity index of Holothurioidea at Pancur Shore is low (0.930) and the equality index  classified uneven (0.447).Keywords: Holothurioidea, intertidal, diversity, evennes

scholarly journals Cucumaria in Russian Waters of the Barents Sea: Biological Aspects and Aquaculture Potential

2021 ◽  
Vol 8 ◽  
Author(s):  
Alexander G. Dvoretsky ◽  
Vladimir G. Dvoretsky
Keyword(s):  
Sea Cucumber ◽  
Barents Sea ◽  
Natural Populations ◽  
Pharmaceutical Products ◽  
Bioactive Substances ◽  
Sea Cucumbers ◽  
Food Items ◽  
The Barents Sea ◽  
Wide Range ◽  
Sea Ranching

Sea cucumbers are a popular luxury and delicacy food items in Asian markets. These echinoderms possess a wide range of bioactive substances that can be used to produce pharmaceutical products. Recent depletion of natural populations of sea cucumbers requires involving new objects both in commercial harvesting and aquaculture. The northern sea cucumber Cucumaria frondosa is the most abundant sea cucumber in the Barents Sea. In this paper, we summarized literature data on the biology of this polar species to evaluate its fishery and aquaculture potential in the area. This eurythermic sea cucumber is typically occurs at 20–100 m depth. Cucumaria mainly colonize rocky or pebbly bottoms. Their main food items are detritus, pellets, phytoplankton, and small planktonic crustaceans. Spawning is registered in February–May. The age of commercial specimens (body length 25–30 cm, wet weight 300–350 g) is 10 years. The most abundant stocks of C. frondosa are registered in the central and south-eastern parts of the sea. Due to the low growth rate of Cucumaria the most appropriate cultivation method for these holothurians is a combination of larval culture and sea ranching. Coastal sites of the Barents Sea merit all the criteria for sea ranching of Cucumaria, but the development of their extensive aquaculture requires significant investments with long pay-back periods.

scholarly journals Evaluation of Microplastics Ingested by Sea Cucumber Stichopus Horrens in Pulau Pangkor, Perak, Malaysia

2021 ◽  
Author(s):  
Miftahul Jannah Muhammad Husin ◽  
Nurzafirah Mazlan ◽  
Jemimah Shalom ◽  
Safaa Najah Saud ◽  
Muhammad Shirwan Abdullah Sani
Keyword(s):  
Filter Paper ◽  
Sea Cucumber ◽  
Marine Species ◽  
Low Energy ◽  
Polymer Materials ◽  
Primary Data ◽  
Sea Cucumbers ◽  
Deposit Feeders ◽  
Stichopus Horrens ◽  
Plastic Products

Abstract The widespread presence of microplastics has caused significant concerns on their potential effects on marine ecosystems. Microplastics are classified as plastic products of less than 5 mm in size and are known to be one of the most dangerous aquatic debris to marine species. Sea cucumbers are deposit-feeders living in sediment regions that may collect microplastics in low-energy environments. This research aims to evaluate the types of microplastic isolated from the intestine of Stichopus horrens in Malaysia. Sea cucumber samples collected from Pulau Pangkor, Malaysia were dissected, and their intestines were collected for digestion. Microplastics were extracted using NaOH and filtered using filter paper. Microplastic identification was conducted on the based on the physical characteristics (colour, shape, size) and chemical characterisation was evaluated using FTIR for polymer functional groups. A total of 1446 microplastics were found in Stichopus horrens. Among various types and colors, fibre (90%) and black (59%) were dominant amongst the various particles identified. The majority of microplastics sizes were 0.51 µm and 1–2 µm. Two polymer materials were identified, namely polyethylene and poly(methyl methacrylate). As a conclusion, the findings of the study will serve as primary data for pollution indicators in respective islands.

scholarly journals INVESTMENTS ON PROTECTED AREAS ON THE EXAMPLE OF BIEBRZA NATIONAL PARK

2018 ◽  
Vol XX (2) ◽  
pp. 46-52
Author(s):  
Barbara Gołębiewska ◽  
Joanna Stefańczyk
Keyword(s):  
Protected Areas ◽  
National Park ◽  
Residential Buildings ◽  
Investment Projects ◽  
The Subject ◽  
Park Area ◽  
Farm Buildings

The study discusses the issue of assessment of investment projects planned in environmentally valuable areas. The study area was Biebrza National Park. The source of data was the available literature on the subject, as well as information contained in the Chronicles of Biebrza National Park of year 2015 and 2016. An interview with the park authorities was also conducted. Analyses were developed and conclusions were drawn with regard to investments in the park area. The types of investment projects implemented were specified, as well as the share of these projects in communes located within the park area in relation to the number of inhabitants. It was found that investment projects implemented in the areas protected as a part of the national park were investments in farm buildings, animal houses and – most of all – residential buildings.

scholarly journals Sea cucumber species found in Soft-bottom of Wulan Estuary-Demak, Central Java

2021 ◽  
Vol 944 (1) ◽  
pp. 012023
Author(s):  
R Hartati ◽  
S Redjeki ◽  
I Riniatsih ◽  
W Widianingsih ◽  
R A T Nuraini ◽  
...  
Keyword(s):  
Sea Cucumber ◽  
Economic Value ◽  
Morphological Characters ◽  
Soft Bottom ◽  
Sea Cucumbers ◽  
Fine Material ◽  
Central Java ◽  
High Sedimentation ◽  
High Diversity

Abstract Indonesia has been known to have a high diversity of sea cucumber, but data and information are mostly on high-economic-value species. Sea cucumber living in soft-bottom substrates is less studied and unexploited. Wulan estuary located in the Demak Regency of Central Java was experiencing high sedimentation, which was consisted of fine material, and acted as a habitat for many macrozoobenthos, amongst others sea cucumbers. The objective of the present research was to identify the species of sea cucumber in the soft bottom of the Wulan estuary. The collection of sea cucumber specimens was done using a dredge. A total of 132 specimens were collected, examined, and identified through their morphological characters. The holothuroids found in the soft-bottom of the Wulan estuary represent five genera (Acaudina, Colochirus, Holothuria, Paracaudina, Phyllophorus,) in four families (Caudinidae, Cucumariidae, Holothuriidae, and Phyllophoridae) belonging to three orders (Molpadida, Dendrochirotida, and Aspidochirotida). The species were Acaudina sp., A. molpadioides, Colochirus quadrangularis, Holothuria cf. impatiens, Paracaudina sp., Paracaudina chilensis, P. australis, and Phyllophorus spiculata. A. molpadioides is presented as the most frequently found species. Although sea cucumber found in the Wulan estuary has not been exploited, it still needs to be managed to sustain its population.

scholarly journals Modeling of habitat suitability for sea cucumber ranching in Sintok Island, Karimunjawa National Park, Indonesia

2021 ◽  
Vol 944 (1) ◽  
pp. 012022
Author(s):  
R Hartati ◽  
T S Alya ◽  
M Zainuri ◽  
A Ambariyanto ◽  
W Widianingsih ◽  
...  
Keyword(s):  
Habitat Suitability ◽  
Sea Cucumber ◽  
Small Island ◽  
Index Model ◽  
Sediment Classification ◽  
Suitability Index ◽  
Sea Ranching ◽  
Input Variables ◽  
Increasing Demand ◽  
Seagrass Density

Abstract Increasing demand for marine resources, such as sea cucumber, has led to widespread interest in their conservation, one of which is sea ranching. This study sought to identify habitat suitability for sea cucumber Holothuria scabra ranching. The proposed location was Sintok Island, one small island part of Karimunjawa Archipelagos. The HSI (Habitat Suitability Index) model was used to identify potential sites for sea cucumber ranching. Twelve habitat factors were used as input variables for the HSI model: sediment classification, water temperature, salinity, pH, dissolved oxygen, depth, transparency, current, depth, organic matter and chlorophyll-a of the sediment, seagrass density, and tide. The weighting of each habitat factor was defined through the Delphi method. Sediment classification and seagrass density were the most and less important condition affecting the HSI of H. scabra in the different study areas with weighing index of 0.2191 and 0.015 respectively. The HSI of Southern Station (Station 1) was relatively low (0.79-0.81), meaning the site was not suitable for sea ranching of H. scabra. In contrast, the western (Station 2) and the northern part (Station 3) of Sintok Island, were preferable sites, suitable as habitats for restoration efforts in sea ranching.

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