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

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.

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Implementasi Budidaya Teripang di Desa Madwaer, Maluku Tenggara

Jurnal Pengabdian Pada Masyarakat ◽

10.30653/002.201722.26 ◽

2017 ◽

Vol 2 (2) ◽

pp. 135-140

Author(s):

Pitjont Tomatala ◽

Meyske Angel Rahantoknam

Keyword(s):

Sea Cucumber ◽

Economic Value ◽

Perceived Benefits ◽

Sea Cucumbers ◽

Knowledge And Skills

IMPLEMENTATION OF SEA CUCUMBER CULTIVATION IN MADWAER VILLAGE, SOUTHEAST MALUKU. Sea cucumbers or Teripang (Holothuria sp) is a fishery commodity that has economic value. Sea cucumbers are often caught and sold by a group of people in Madwaer village, Southeast Maluku regency. The value of perceived benefits motivates them (partners) to try to cultivate sea cucumbers by utilizing the coastal conditions in their village. Limitations of knowledge about the technique of making cucumber cultivation container, technology of sea cucumber rearing and management of sea cucumber business is a problem faced by partners. This activity aims to help partners solve the problems faced. The method used in this activity is elucidation, training and monitoring. From the results of the activity is known that partners have had the knowledge and skills so that they are able to make a good cultivation cucumber container, able to cultivate sea cucumbers and partners are able to do the management of sea cucumber business well.

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The Effectiveness of pen‒culture construction for cultivation of sea cucumber

Jurnal Akuakultur Indonesia ◽

10.19027/jai.17.1.26-33 ◽

2018 ◽

Vol 17 (1) ◽

pp. 26

Author(s):

Pitjont Tomatala ◽

Petrus Paulus Letsoin ◽

Evangelin Martha Yulia Kadmaer

Keyword(s):

Water Quality ◽

Survival Rate ◽

Culture System ◽

Sea Cucumber ◽

Economic Value ◽

Ocean Waves ◽

Visual Observation ◽

Marine Biota ◽

Sea Cucumbers ◽

Waves And Currents

AbstractSea cucumber Holothuria sp. is a marine biota that has economic value. The rearing activity of sea cucumbers is still limited to the have bay or strait areas with relatively calm coastal. This research aimed to determine the effectiveness of two types of pen‒culture system for sea cucumber rearing to the influence of ocean waves and currents. This research was done from February to July 2017 in the coastal of Rat village, Southeast Maluku Regency. The two of cultivated containers tested were a conventional pen‒culture (treatment A) and engineered pen‒culture (treatment B). A total of 30 individuals sea cucumber seeds sized 4‒6 cm were released at each pen‒culture. Survival rate and water quality were also calculated as supporting data. Observation of endurance and clearance of pen‒culture was done every two weeks. The result of visual observation showed that conventional pen‒culture treatment A was more quickly damaged and it was more damaged compared to engineered pen-culture treatment B.Through t‒test we got T count (1.065) < Ttable (6.313) for survival and T count (0.084) < Ttable (1.782) for growth. The result means that treatment A and treatment B have the same effect onsurvival rate and growth of sea cucumber. The results showed that treatment B was better applied to more open waters than treatment A. Keyword: endurance, pen‒culture, sea cucumber, survival, growth AbstrakTeripang Holothuria sp. merupakan biota laut yang memiliki nilai ekonomis. Kegiatan budidaya teripang masih terbatas pada daerah‒daerah yang berteluk atau berselat dengan perairan yang relatif tenang. Penelitian ini bertujuan untuk membandingkan efektivitas dua sistem budidaya teripang dalam kurungan tancap terhadap pengaruh gelombang laut dan arus. Penelitian ini berlangsung dari bulan Februari hingga Juni 2017 di perairan Desa Rat, Kabupaten Maluku Tenggara. Dua tipe wadah budidaya yang diujicobakan adalah kurungan tancap konvensional (perlakuan A) dan kurungan tancap yang direkayasa (perlakuan B). Pada setiap kurungan tancap, dimasukkan teripang pasir berukuran 4‒6 cm sebanyak 30 ekor. Sebagai data pendukung, dihitung persentase kelangsungan hidup dan pengukuran kualitas air. Pengamatan ketahanan dan kebersihan kurungan tancap dilakukan setiap dua minggu sekali. Hasil pengamatan visual diketahui bahwa kurungan tancap perlakuan A lebih cepat rusak dan mengalami kerusakan yang lebih besar dibandingkan perlakuan B. Melalui uji-tdiperoleh hasil Thitung (1,065) < Ttabel (6,313) untuk kelangsungan hidup, dan Thitung (0,084) < T tabel (1,782) untuk pertumbuhan. Hasil uji‒t bermakna bahwa perlakuan A dan perlakuan B memiliki pengaruh yang sama terhadap kelangsungan hidup dan pertumbuhan teripang. Hasil pengamatan menunjukkan bahwa perlakuan B lebih baik diaplikasikan pada perairan yang lebih terbuka dibandingkan perlakuan A. Kata kunci: ketahanan, kurungan tancap, teripang, kelangsungan hidup, pertumbuhan

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HUBUNGAN PANJANG BERAT DAN FAKTOR KONDISI TERIPANG HITAM (Holothuria atra) DI KAWASAN TAMAN NASIONAL LAUT KARIMUNJAWA Length-Weight Relationship and Condition Factor of Black Sea Cucumber (Holothuria atra) in Karimunjawa National Marine Park Area

Management of Aquatic Resources Journal (MAQUARES) ◽

10.14710/marj.v8i4.26552 ◽

2020 ◽

Vol 8 (4) ◽

pp. 327-336

Author(s):

Citraningrum Mawa Panuluh ◽

Bambang Sulardiono ◽

Nurul Latifah

Keyword(s):

Black Sea ◽

Sea Cucumber ◽

Condition Factor ◽

Economic Value ◽

Relative Weight ◽

Marine Biota ◽

Sea Cucumbers ◽

Relationship Length ◽

Weight Condition ◽

Holothuria Atra

Teripang Hitam (H. atra) merupakan jenis biota laut yang memiliki nilai ekologis dan ekonomis di perairan Taman Nasional Laut Karimunjawa. Tujuan penelitian ini adalah menganalisis hubungan panjang berat, faktor kondisi dan analisis perbedaan antara Holothuria atra(teripang hitam) yang hidup di zona perairan budidaya dan wisata dengan yang hidup di zona rehabilitasi. Pengambilan sampel teripang dilakukan pada siang hari di 3 stasiun zona budidaya dan wisata yaitu Menjangan Kecil, Menjangan Besar dan perairan sekitar Wisma Apung serta 1 stasiun zona rehabilitasi yaitu di Perairan Alang-alang. Pengamatan sampel teripang dilakukan secara sensus. Total sampel yang diperoleh di Alang-alang sebanyak 30 individu dengan kisaran panjang 13-43 cm, berat 49-514 g, Sampel di Menjangan kecil sebanyak 17 individu dengan kisaran panjang 9-26 cm, berat 20-260 g, sampel Menjangan Besar sebanyak 5 individu kisaran panjang 16-23 cm berat 66-193 g dan sampel di perairan sekitar Wisma Apung sebanyak 17 sampel kisaran panjang 14-28 cm berat 23-260 g. Pertumbuhan teripang di masing-masing perairan menunjukkan pola pertumbuhan allometrik negatif yang artinya penambahan panjang lebih cepat daripada penambahan bobot. Nilai faktor kondisi Fulton teripang hitam di Alang-alang 1,34, Menjangan Kecil 1,91, Menjangan Besar 1,89, serta perairan sekitar Wisma Apung 1,37, menunjukkan teripang hitam di perairan yang banyak pengunjung lebih gemuk daripada teripang hitam di Alang-alang yang sepi pengunjung, serta faktor kondisi berat relatif alang-alang 104,27, Menjangan Kecil 104,25, Menjangan Besar 105,59 dan Wisma Apung 108,22 masing-masing perairan semua diatas 100 menunjukkan perairan tersebut menyediakan surplus makanan yang cukup. Black Sea Cucumber (H. atra) is a type of marine biota that has ecological and economic value in the waters of the Karimunjawa Marine National Park. The purpose of this study was to analyze the relationship length-weight, condition factor and analysis of differences between Holothuria atra (black sea cucumbers) that live in cultivation and tourism zones and those that live in rehabilitation zones. Sea cucumber sampling is conducted at noon in 3 stations of the cultivation and tourism zones, namely Menjangan Kecil, Menjangan Besar and the waters around Wisma Apung and 1 rehabilitation zone station in Alang-alang. Observation of sea cucumber samples is done by census. Total samples obtained in Alang-alang were 30 individuals with a range of length 13-43 cm, weight 49-514 g, sampel in Menjangan Kecil were 17 individuals with a range of length 9-26 cm, weight 20-260 g, sampel in Menjangan Besar were 5 individuals with a range of length 16-23 cm, weight 66-193 g, and last sampel in waters around Wisma Apung were 17 individuals with a range of length 14-28 cm weight 23-260 g. The growth of sea cucumbers in each waters shows a negative allometric growth pattern which means that the addition of the length is faster than the addition of the weight. Fulton’s condition factor values of black sea cucumber in Alang-alang 1.34, Menjangan Kecil 1.91, Menjangan Besar 1.89, and waters around Wisma Apung 1.37, shows that black sea cucumbers in the waters that many visitors are fatter than black sea cucumbers in the Alang-alang which deserted visitors, and the relative weight condition factors of Alang-alang 104.27, Menjangan Kecil 104.25, Menjangan Besar 105.59 and Wisma Apung 108.22 each of the waters above 100 indicates that these waters provide sufficient food surplus.

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DOMINANT CATCH OF SEA CUCUMBER IN DATU ISLAND (SCOTT REEF) AUSTRALIA FOR THE INCOME

Indonesian Fisheries Research Journal ◽

10.15578/ifrj.16.2.2010.91-101 ◽

2017 ◽

Vol 16 (2) ◽

pp. 91

Author(s):

Ralph Thomas Mahulette ◽

Anthony Sisco Panggabean

Keyword(s):

Sea Cucumber ◽

Economic Value ◽

Sea Cucumbers

TypeS of Sea cucumbers or trepang which have important ecOnomic value and consumed were from'the genera Holothuria, Stichopodidae, and Thelenota. Sea cucumbers catch by Indonesian fishermen are not only done in Indonesian waters but also to reach the waters of Datu lsland (scott reef), which is Box 74 MoU region.

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Effectiveness of rearing Sandfish, Holothuria scabra and Seaweed, Gracilaria sp. with the Polyculture System

JURNAL ILMIAH PLATAX ◽

10.35800/jip.7.1.2019.23373 ◽

2019 ◽

Vol 7 (1) ◽

pp. 266

Author(s):

Pitjont Tomatala ◽

Petrus P. Letsoin ◽

Evangelin M.Y. Kadmaer

Keyword(s):

Water Quality ◽

Sea Cucumber ◽

Economic Value ◽

Survival Rates ◽

Added Value ◽

Predator Control ◽

Sea Cucumbers ◽

Growth And Survival ◽

Absolute Growth ◽

Quality Measurements

Sandfish (Holothurai scabra) and seaweed Gracilaria sp are marine commodities that have economic value and have good prospects in the market. These two commodities, if rearing together, will certainly provide added value to farmers. This research aims to determine the potential of sea cucumber polyculture, (H. scabra) and Gracilaria sp. which is maintained in culture. This research was conducted in April - May 2018 in the coastal of Rat village, Southeast Maluku Regency. Sea cucumbers are weighed and stocked on Pen-culture (measuring 4 x 3 meters) with a density of 40 individuals / Pen-culture. Gracilaria seeds are taken from young thallus which are tied into one clump and ditagging. After that, Gracilaria was weighed and spread in Pen-culture of 20 clump / Pen-culture. Observation of growth and survival of sandfish and Gracilaria sp done once a week. At the same time, predator control is carried out on pen-culture and water quality measurements. The results showed that sea cucumbers experienced absolute growth and survival rates of 18.20 g and 92.5% respectively. Gracilaria sp which is maintained does not experience growth, while the percentage of survival of Gracilaria sp is 20%. Based on the results of the research it can be concluded that Polyculture of sandfish, H. scaba and seaweed, Gracilria sp is not effective if Gracilria sp is stocked on the basis of Pen-culture.Keyword : Sandfish, Gracilaria, PolycultureABSTRAKTeripang pasir (Holothurai scabra) dan rumput laut Gracilaria sp merupakan komuditi laut yang bernilai ekonomis dan mempunyai prospek yang baik dipasaran. Kedua komuditi ini, jika dipelihara bersama tentunya akan memberikan nilai tambah bagi pembudidaya. Penelitian ini bertujuan untuk mengetahui potensi polikultur teripang pasir, (H. scabra) dan Gracilaria sp. yang dipelihara pada pen-culture.Penelitian ini dilaksanakan pada bulan April – Mei 2018 di perairan desa Rat, Kabupaten Maluku Tenggara. Teripang pasir ditimbang dan ditebar pada Pen-culture berukuran 4 x 3 meter dengan kepadatan 40 individu/Pen-culture. Bibit Gracilaria diambil dari thallus muda yang diikat menjadi satu rumpun dan ditagging. Setelah itu, Gracilaria ditimbang dan ditebar pada Pen-culture sebanyak 20 rumpun/ Pen-culture.Pengamatan pertumbuhan dan kelangsungan hidup teripang pasir dan Gracilaria sp. dilakukan seminggu sekali. Pada waktu yang bersamaan, dilakukan juga pengontrolan predator pada Pen-culture dan pengukuran kualitas air. Hasil penelitian diketahui bahwa teripang mengalami rata-rata pertumbuhan mutlak dan kelangsungan hidup, masing-masing sebesar 18.20 g dan 92.5 %. Gracilaria sp yang dipelihara tidak mengalami pertumbuhan, sedangkan presentase kelangungan hidup Gracilaria sp sebesar 20 %. Berdasarkan hasil penelitian dapat disimpulkan bahwa Polikultur teripang pasir, H. scaba dan rumput laut, Gracilria sp tidak efektif jika Gracilria sp ditebar pada dasar Pen-culture. Kata kunci : Teripang pasir, Gracilaria, Polikultur

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Morfometri, Pemijahan, dan Indeks Kematangan Gonad Teripang Komersial di Perairan Pulau Nyamuk, Karimunjawa

Jurnal Kelautan Tropis ◽

10.14710/jkt.v24i3.11696 ◽

2021 ◽

Vol 24 (3) ◽

pp. 375-384

Author(s):

Mustagfirin Mustagfirin ◽

Diah Permata Wijayanti ◽

Subagiyo Subagiyo

Keyword(s):

Sea Cucumber ◽

Economic Value ◽

Moon Phase ◽

The Moon ◽

Coral Reef Ecosystem ◽

Sea Cucumbers ◽

Lack Of Information ◽

Gonadal Maturity ◽

New Moon ◽

Reef Ecosystem

Sea cucumbers are marine organisms that live in coral reef ecosystem habitats and their associations. Sea cucumbers have been used by communities as food, cosmetics and traditional medicine in various countries. The benefits and high economic value of sea cucumbers make fisheries activities occured massively and continuously. Sea cucumbers were large commodity from Indonesian waters. However, until now it has not received proportional attention. The lack of information on morphometry, spawning in various regions has made the commodity of sea cucumbers decreased. This research was conducted to determine the character of commercial sea cucumber commodities in Pulau Nyamuk, to the occurrence of spawning based on the moon phase. This research was conducted in September - November 2020. This research method uses an analysis approach of gonadal maturity index in determining the spawning of sea cucumbers. The results showed that commercial sea cucumbers in Pulau Nyamuk were Pisang (Holothuria sp.) and Gamat (Stichopus sp.) Sea cucumber. This sea cucumber weighs 300-690 grams wet. Sea Cucumbers, Pisang and Gamat tend to have high IKG values in the new moon phase with IKG index values >10%. Teripang merupakan organisme laut yang hidup pada habitat ekosistem terumbu karang dan asosiasinya. Teripang telah dimanfaatkan oleh masyarakat di sekitar pantai sebagai bahan makanan, kosmetik serta obat tradisional di berbagai negara. Manfaat serta nilai ekonomi teripang yang tinggi membuat aktivitas pemburuan terjadi secara masif dan terus menerus. Teripang juga merupakan komoditas besar yang berasal dari Perairan Indonesia. Namun hingga saat ini belum memperoleh perhatian yang proporsional. Minimnya informasi mengenai morfometri, pemijahan di berbagai daerah membuat komoditas teripang turun secara drastis. Penelitian ini dilakukan untuk mengetahui karakter komoditas teripang komersial di Pulau Nyamuk, hingga terjadinya pemijahan berdasarkan fase bulan. Penelitian ini bulan September - November 2020 di Perairan Pulau Nyamuk Kecamatan Karimunjawa, Kabupaten Jepara. Metode penelitian ini menggunakan pendekatan analisis indeks kematangan gonad dalam menentukan pemijahan teripang. Hasil penelitian menunjukkan bahwa teripang komersial di Pulau Nyamuk adalah jenis teripang Pisang (Holothuria sp.) dan Gamat (Stichopus sp.). Teripang ini mempunyai berat 300-690 gram basah. Teripang Pisang dan Gamat cenderung mempunyai nilai IKG yang tinggi pada bulan baru dengan nilai indeks IKG >10%.

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Identification of Bryophytes in Jumog Waterfall, Karanganyar, Central Java, Indonesia

BIOTROPIC The Journal of Tropical Biology ◽

10.29080/biotropic.2019.3.2.79-85 ◽

2019 ◽

Vol 3 (2) ◽

pp. 79-85

Author(s):

Yasir Sidiq ◽

Alanindra Saputra ◽

Siti Kartika Sari

Keyword(s):

Genetic Relationship ◽

Morphological Characters ◽

Funaria Hygrometrica ◽

Central Java ◽

Identification Of Species ◽

High Diversity

Indonesia, as a mega-biodiversity country, has a high diversity of bryophytes (Liverworts, Hornworts, and Mosses). In addition, a waterfall is one of the most optimum places for bryophytes to life. One of many waterfalls in Indonesia is Jumog Waterfall. It is located in Karanganyar Regency, Central Java. This study aimed to know the diversity of bryophytes in Jumog Waterfall, identify the species, and analyze the genetic relationship through the species based on morphological characters. The explorative method was used to collect the samples. Identification of species was done by comparing samples to the handbook of identification. The results were; (1) there were fifteen species that found in Jumog Waterfall; (2) The highest similarity among species was 90%. They were grouped in genus Fissidentales, Order Dicranales, and Order Hypnobryales. Then, The lowest similarity was 30.8%. They were between Funaria hygrometrica and Riccia fliutans. It distinguished liverwort, hornwort, and mosses

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

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/919/1/012024 ◽

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.

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The growth pattern of sea cucumber Acaudina sp. from the Delta Wulan, Demak, Central Java, Indonesia

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/674/1/012037 ◽

2021 ◽

Vol 674 (1) ◽

pp. 012037

Author(s):

W Widianingsih ◽

R Hartati ◽

R A T Nuraeni ◽

H Endrawati ◽

R T Mahendrajaya

Keyword(s):

Growth Pattern ◽

Sea Cucumber ◽

Central Java

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New Devonian microconchids (Tentaculita) from the Holy Cross Mountains, Poland

Journal of Paleontology ◽

10.1666/11-005.1 ◽

2011 ◽

Vol 85 (4) ◽

pp. 757-769 ◽

Cited By ~ 20

Author(s):

Michał Zatoń ◽

Wojciech Krawczyński

Keyword(s):

Sedimentation Rate ◽

Distal Portion ◽

Taxonomic Composition ◽

Soft Bottom ◽

Holy Cross Mountains ◽

Competition For Space ◽

High Sedimentation ◽

New Material ◽

Three New Species ◽

Hard Substrates

Tentaculitoid microconchid tubeworms from Devonian (uppermost Emsian-upper Givetian) deposits of the Holy Cross Mountains, Poland, include three new species from stratigraphically well-constrained lithological units:Polonoconchus skalensisn. gen. n. sp.,Palaeoconchus sanctacrucensisn. sp. andMicroconchus vinnin. sp. The microconchids inhabited fully marine environments during transgressive pulses, as is evidenced from facies and associated fossils.Polonoconchus skalensisn. gen. n. sp. andPalaeoconchus sanctacrucensisn. sp. inhabited secondary firm- to hard-substrates in deeper-water, soft-bottom environments. They developed planispiral, completely substrate-cemented tubes and planispiral tubes with elevated apertures, which is indicative of environments where sedimentation rate is low but competition for space (by overgrowth) may be high.Microconchus vinnin. sp., on the other hand, developed a helically coiled distal portion of the tube as a response to a high sedimentation rate. As the taxonomic composition of Devonian microconchids is poorly recognized at both regional and global scales, this new material contributes significantly to our understanding of the diversity of these extinct tube-dwelling encrusters.

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