scholarly journals Microplastic abundance in sea urchins (Diadema setosum) from seagrass beds of Barranglompo Island, Makassar, Indonesia

2021 ◽  
Vol 763 (1) ◽  
pp. 012057
Author(s):  
R Sawalman ◽  
S Werorilangi ◽  
M Ukkas ◽  
S Mashoreng ◽  
I Yasir ◽  
...  
Author(s):  
FARID KAMAL MUZAKI ◽  
EDWIN SETIAWAN ◽  
GHULAM FATHIR AUTHAR INSANY ◽  
NURUL KUSUMA DEWI ◽  
IWENDA BELLA SUBAGIO

Abstract. Muzaki FK, Setiawan E, Insany GFA, Dewi NK, Subagio IB. 2019. Community structure of Echinoderms in seagrass beds of Pacitan beaches, East Java, Indonesia. Biodiversitas 20: 1787-1793. In this study, we attempt to access diversity and community structure of Echinoderms on seagrass beds in each three belt transect (width 2 m, length 100 m) in Tawang and Pidakan beaches, Pacitan, East Java, Java. Observed parameters were species richness, composition, and abundance, as well as diversity indices: Shannon-Wiener's diversity index (H'), Simpson's dominance index (D) and Pielou's evenness index (J). At the end of the study, we identified one species of sea star (Asteroidea), seven species of brittle stars (Ophiuroidea), ten species of sea cucumbers (Holothuroidea) andnine species of sea urchins (Echinoidea). The most dominant species were Ophiocoma dentata (F. Ophiocomidae), Diadema setosum (F. Diadematiidae), Ophiomastix annulosa (F. Ophiocomidae) and Echinometra mathaei (F. Echinometridae). Value of H’ ranged from 0.538 to 1.252 in Tawang and 1.041 to 1.704 in Pidakan; which showing higher species richness and diversity in Pidakan. Echinoderm in the study area was not evenly distributed; D. setosum was very dominant in Tawang beach, while those three other species were more common in Pidakan. Furthermore, most of Holothuroid and Ophiuroid were found only in Pidakan which have relatively more complex habitat.


2021 ◽  
Vol 24 (1) ◽  
pp. 63-70
Author(s):  
Wilma Moka ◽  
Dwi Fajriyati Inaku ◽  
Muhammad Rais

Sea urchins is marine organism from Phylum Echinoderms which have high economic and ecological value. Therefore, we need data on the current condition of sea urchins, especially those in the Spermonde Islands. Through this research, it is hoped that the community structure and distribution of sea urchins in Kodingareng Lompo Island, Spermonde Islands can be known. The sampling method used was quadrant transects measuring 5x5 meters on 4 plots in the seagrass area on Kodingareng Lompo Island. The data analysis used was species composition, density, relative density, diversity index, and uniformity index. The results obtained show that there are three species of sea urchins, namely Diadema setosum, Mespilia globulus, and Tripneustes gratilla, basen on morphology identification. Diadema setosum is species with the highest species composition value, namely 92%. The density value (0.017 individuals / m2) and the diversity of sea urchins (H '<1) in the seagrass beds at Kodingareng Island are classified as low. It is hoped that the data obtained from this research can become a reference for the management of biological resources in the Spermonde Islands in the future. Landak laut merupakan salah satu kelas dari Filum Echinodermata yang memiliki nilai ekonomis dan ekologis yang cukup tinggi. Gonad landak laut telah sejak lama dikonsumsi di berbagai negara dunia, dan bahkan sekarang cangkangnya banyak dijadikan souvenir. Karena itu diperlukan data kondisi terkini landak laut, khususnya yang ada di Kepulauan Spermonde. Melalui penelitian ini diharapkan dapat diketahui struktur komunitas maupun sebaran landak laut yang ada di Padang Lamun Pulau Kodingareng Lompo, Kepulauan Spermonde. Metode sampling yang digunakan adalah transek kuadran ukuran 5x5 meter pada 4 plot pada daerah padang lamun di Pulau Kodingareng Lompo. Analisis data yang digunakan adalah komposisi jenis, kepadatan, kepadatan relatif, indeks keanekaragaman, dan indeks keseragaman. Hasil yang didapatkan memperlihatkan bahwa terdapat tiga genus landak laut, yaitu Diadema, Mespilia, dan Tripneustes. Diadema sp. merupakan genus dengan nilai komposisi jenis tertinggi yaitu 92%. Nilai kepadatan (0,017 individu/m2) dan keanekaragaman landak laut (H’<1) di padang lamun Pulau Kodingareng tergolong rendah. Data yang didapatkan dari penelitian ini diharapkan dapat menjadi bahan acuan untuk pengelolaan sumberdaya hayati di Kepulauan Spermonde ke depannya.


2020 ◽  
Vol 6 (1) ◽  
pp. 40
Author(s):  
Lalu Raftha Patech ◽  
Abdul Syukur ◽  
Didik Santoso

Seagrasses are plants in the marine environment and have a vital function for the survival of organisms. This study aims to describe the indicators of the seagrass ecological function of the diversity of echinoderms species. The research method used is the method of line and square transects. Data analysis uses analysis of abundance (Ki), diversity (H ') Shannon Wieners, Morisita Dispersion Index, and Jaccard Index. The results showed that the highest seagrass species found at Lungkak beach were 8 species and the lowest was in the Mangrove Poton of 6 species. Furthermore, the number of species of Echinoderms found was 14 species, and the species with the highest abundance was Diadema setosum with a value of 1.21 Individual / m2, and the species that had the lowest abundance was Holothuria scabra) with a value of 0.01 Individual / m2. Meanwhile, the location with the highest value H 'is in Gili Kere with a value of 1.76, and the location with the lowest value of H' is in Lungkak with a value of 1.01. Furthermore, the value of the Seagrass Morisita Dispersion Index and Echinoderms in the study area had a uniform and grouped pattern. The quantitative and qualitative values obtained are a form of seagrass ecological contribution to the sustainability of Echinoderms in the study location. Therefore, the results of this study can be a scientific basis for the importance of the existence of seagrass beds, especially for the sustainability of marine life such as species of Echinoderms.


2017 ◽  
Vol 9 (2) ◽  
pp. 65-71
Author(s):  
La Banudi ◽  
M. Anas Anasiru ◽  
Petrus Petrus ◽  
Purnomo Leksono

The hope of this research is to establish manateau kanji extract as a formula for bagea production that comes with gonad diadem setosum (sea urchins), which is rich in nutrients and therefore ideal for women pregnant. Cassava kanji extract can be used as a food formula ingredient to make a range of food formula The goal of this study is to examine the formula of bagea made from cassava flour extract and Gonad Diadema Setosum (Sea urchins) as an aging food in pregnant women. Pre-experiment design in the manufacture of bagea solution. The highest favorite amount for cassava flour bagea is BTP 2 (sago flour 50, cassava flour 50) with a value of 3.26. In addition, the highest level of favorite in the manufacture of bagea made from cassava flour and the addition of gonad is BTP 2 (sago flour 50, cassava flour 50 and gonad 20) In order to increase the preferred value of bagea with the addition of cassava flour and gonad, it is important to add certain ingredients to add flavor to remove odor. Catatan PenerbitPolekkes Kemenkes Kendari menyatakan tetap netral sehubungan dengan klaim dari perspektif atau buah pikiran yang diterbitkan dan dari afiliasi institusional manapun.


2020 ◽  
Author(s):  
Salim Dautov ◽  
Tatiana Dautova ◽  
Svetlana Kashenko

FISHING OR BREEDING. This question arose relatively recently, but in the last decade, mankind will have to lean more towards the second. Sea reserves of useful species are exhausted. One possible solution to this problem is marine farming. We proposed to investigate the larval development of three sea urchin species: Diadema setosum (Leske, 1778), D. savignyi (Audouin, 1829) (South China Sea), and Mesocentrotus nudus (A. Agassiz, 1864) (Japan Sea). The larvae of Diadema setosum and D. savignyi were very similar, and some differences could only be observed at the late pluteus stage. These sea urchins were developed through the modified pluteus, which only had two pairs of larval arms. The arms were very long - in D. setosum above 2 mm, and in D. savignyi about 5.5 mm. Larval development took about 45 days in D. setosum and 47–50 days in D. savignyi. In contrast, Mesocentrotus nudus (A. Agassiz, 1864) was developed through the pluteus larvae, which had some differences from the pluteus of the genus Strongylocentrotus. Their dimensions did not reach one millimetre. The larval development of Mesocentrotus nudus lasted about 30 days. Analysis of material and time costs has led to the conclusion that Mesocentrotus nudus is the most convenient for obtaining seed material. However, this species cannot be used for the tropical zone. The results of D. savignyi and D. setosum can be used to increase the number of cultivated species.


Omni-Akuatika ◽  
2016 ◽  
Vol 12 (2) ◽  
Author(s):  
Siti Aisyah Lubis ◽  
Rofiza Yolanda ◽  
Arief Anthonius Purnama ◽  
Ria Karno

This study has been conducted from May to July 2016 in Panjang island, Bangka Tengah District,Bangka Belitung Province. The aims of this study was to evaluate the species of sea urchins by usingsurvey method at four sites. Sampling was done by using a square transect of 50 x 50 m. A total of868 individuals of sea urchin belonging to 2 species were recorded in this study, namely Diademasetosum and Echinothrix calamaris. D. setosum was the most abundant in individual number (828individuals) meanwhile E. calamaris only 40 individuals.Keywords: Diadema setosum, Echi nothrix calamaris, reef flat


Author(s):  
Marnie Grace I. Sonico

This study investigated the distribution and diversity of sea urchins along the intertidal zone of Punta Dumalag, Matina Aplaya, Davao City. A total of 100 quadrats (1m x 1 m) spaced 5 m apart, in 3 transects laid perpendicular to the shoreline, recorded a total of 347 individuals, resolved into 5 species, namely, Echinometra mathaei (rock- boring or common sea urchin), Echinothrix calamaris (Hatpin urchin), Diadema setosum (long-spine or “tuyom”), Prionocidaris verticillata (rough spine urchin), and Diadema savignyi. Among the 347 individuals recorded, Echinometra mathaei was the most abundant in the site with a total of 286 individuals. Shannon-Weiner Diversity Analysis (0.602) suggests low species diversity. Physicochemical measurements such as water temperature, pH, dissolved oxygen, and salinity revealed that the study site is suitable for the culture of sea urchins. Read full article here.


Zootaxa ◽  
2018 ◽  
Vol 4497 (4) ◽  
pp. 593 ◽  
Author(s):  
OMRI BRONSTEIN ◽  
ANDREAS KROH

Diadema setosum (Leske, 1778), a widespread tropical echinoid and key herbivore in shallow water environments is currently expanding in the Mediterranean Sea. It was introduced by unknown means and first observed in southern Turkey in 2006. From there it spread eastwards to Lebanon (2009) and westwards to the Aegean Sea (2014). Since late 2016 sporadic sightings of black, long-spined sea urchins were reported by recreational divers from rock reefs off the Israeli coast. Numerous attempts to verify these records failed; neither did the BioBlitz Israel task force encounter any D. setosum in their campaigns. Finally, a single adult specimen was observed on June 17, 2017 in a deep rock crevice at 3.5 m depth at Gordon Beach, Tel Aviv. Although the specimen could not be recovered, spine fragments sampled were enough to genetically verify the visual underwater identification based on morphology. Sequences of COI, ATP8-Lysine, and the mitochondrial Control Region of the Israel specimen are identical to those of the specimen collected in 2006 in Turkey, unambiguously assigning the specimen to D. setosum clade b. This lends support to the hypothesis of a single introduction event and fits well with the habitat suitability and distribution model for D. setosum published recently. The more rapid and larger range extension along a south-eastern, counter-current trajectory may reflect a strong habitat preference for D. setosum in this area of the Levantine Basin as predicted by the model. 


Author(s):  
Stevin Melay ◽  
P Tuapattinaya ◽  
Fatimah Sangadji

Background: Bodies of State Tulehu a coastal region that has seagrass which adjoins the living marine resources such as mangroves, algae, molluscs, and others. Seagrass in the coastal waters of State Tulehu has spread widely. Information about environmental factors in seagrass ecosystems is still limited that affect its structure. Therefore, to investigate environmental factors and identify the types of phyla phylum molluscs and echinoderms in coastal waters Tulehu village. Methods: The study was conducted in August 2014 by using the quadrant method by using purposive sampling. Hasil environmental research shows physical factors (temperature, pH, salinity, and dissolved oxygen) varies in each quadrant with the results of the identification of Echinodermata and mollusk species also varies. Results: The second research station results obtained 4 types of echinoderms which 1 represents the class Asteroidea species, one species representing Ophiuroidea class, and two types represent the class Echinoidea. On this study, 4 types of echinoderms are divided into three classes, namely class Asteroidea, class Ophiuturoidea, and this Echinoidea. Next class described the types of echinoderms are found on both the research station is Archaster typicus, Ophiocoma erinaceus, Diadema setosum and Laganum depressum. From 3 classes found in both types of Archaster typicus research stations which are found because berhabitat sandy. Conclusion: In the second research station found found four species of the phylum of echinoderms were included in three classes, namely class Echinoidea (sea urchins) are represented by two types, class Asteroidea (starfish) represented by one type and class Ophiuroidea (brittle stars) represented one kind, moreover, In the second research station also found 19 Type molluscs which consists of two types of class Bivalvia and 17 species of the class Gastropoda.


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