scholarly journals Sebaran dan Keanekaragaman Ikan Konsumsi pada Ekosistem Terumbu Karang di Teluk Majene, Provinsi Sulawesi Barat

Jurnal Airaha ◽  
2020 ◽  
Vol 9 (02) ◽  
pp. 105-115
Author(s):  
Andi Arham Atjo ◽  
Reski Fitriah
Keyword(s):  
Soft Coral ◽  
Hard Coral ◽  
Dead Coral ◽  
Visual Census

Tujuan penelitian ini adalah untuk  mengetahui Jenis dan sebaran ikan target konsumsi di Teluk Majene Prov, Sulawesi barat. Kondisi terumbu karang didata dengan menggunakan metode Transek segmen atau Point Intersept Transect  (PIT). Transek tersebut dibentangakan sesuai dengan titik yang telah ditentukan selanjutnya seorang penyelam melakukan penyelaman sepanjang transek 50 meter dan mencatat di kertas tahan air (underwater paper) substrat ataupun bentos yang berada tepat di bawah transek garis. Sedangkan jarak interval (point) pencatatan substrat ataupun bentos adalah setiap 50 cm ( Hill dan Wilkinson, 2004). Adapun kategori yang amati tiap titik 0,5 m yaitu Hard Coral (HC), Soft Coral (SC), Rubble (R), Dead Coral (DC),  Dead Coral Algae (DCA), dan Sand (S). Kelimpahan ikan target yang menghuni ekosistem terumbu karang didata dengan menggunakan metode sensus secara langsung  (Visual Census Method) (English et al.,1994), secara teknis pendataan ini dilakukan dengan metode belt transek.. Hasil dari penelitian ini menunjukkan bahwa Terdapat 28 jenis ikan karang yang merupakan target atau konsumsi penting di Teluk Majene. Jenis ikan yang terbanyak adalah dari jenis Caesio sp. Sedangkan untuk sebarannya, ikan target terdapat di seluruh ekosistem terumbu karang Teluk Majene. Sebaran yang terbanyak ada pada lokasi stasiun 6 tepatnya di Lingkungan Pasarang, Kelurahan Totoli.

scholarly journals Kondisi Sumberdaya Ikan & Terumbu Karang di Pulau Maratua, Kabupaten Berau, Provinsi Kalimantan Timur

2016 ◽  
Vol 2 (1) ◽  
pp. 34-45
Author(s):  
Hendrawan Syafrie
Keyword(s):  
Coral Reefs ◽  
Soft Coral ◽  
Field Survey ◽  
Diversity Index ◽  
Coral Cover ◽  
Good Condition ◽  
Hard Coral ◽  
Dead Coral ◽  
Edge Zone ◽  
Stony Coral

This research aims to obtain describe about the condition of coral reefs and fish around maratua island. Parameter measured to support this research are the percentages of coral cover, abundance of coral fishes, and composition the types of coral fihes. The data field survey was conducted in maratua waters on July 2014. Research sites consisting of 20 station surrounding this island. Result shows that average of coral reefs in reef edge zone in good condition with a coral covered (life coral) 61 % and hard coral composition is 55 % dan soft coral 6 %. The coral reefs covered (stony coral) about 62% in depth 3-6 meters consisting of : 36 % Acropora and 26% non acropora ; and 5% others fauna ; and dead coral abour 22 %. Fish who associated with coral inhabiting waters surrounding maratua island consist of ornamental fish and reef fish consumption, which many found are Pomacentridae, Labridae, Acanthuridae, Chaetodontidae, and Nemipteridae. Result based on field observtion was found about 33 species with diversity index (H’) average 1.57 (relatively small), Uniformity index (E) average 0.3 (depressed community), and donination Index (C) average 0.42 (low).

BIODIVERSITI DAN PEMULIHARAAN TERUMBU KARANG DI TIGA BUAH PULAU, MELAKA (Biodiversity and Conservation of Coral Reefs in Three Islands in Malacca)

2021 ◽  
Vol 22 (1) ◽  
pp. 180-197
Author(s):  
SYAIMAK ISMAIL ◽  
MOHAMAD SAUPI BIN ISMAIL ◽  
MUHAMMAD SAIFUL ISLAM ISMAIL ◽  
AEMY AZIZ
Keyword(s):  
Coral Reefs ◽  
Biodiversity Conservation ◽  
Soft Coral ◽  
Good Condition ◽  
Scuba Diving ◽  
Field Studies ◽  
The State ◽  
Hard Coral ◽  
Wide Range ◽  
State Museum

In the state of Melaka, there are eighteen islands recorded by the Melaka State Museum Corporation (PERZIM). Part of this island serves as a tourist island, and developed islands are also uninhabited islands. However, three islands are recorded to have amazing coral reefs that are still in good condition. The Penang Batu Maung Fisheries Research Institute (AkuaTAR) has conducted a study on the biodiversity of coral reefs around the waters of Pulau Dodol, Pulau Serimbun, and Pulau Undan. AkuaTAR researchers are using scuba diving methods, and at the same time, they did conservation on coral reefs that have been identified in the waters of the Straits of Melaka. The objective of this study is to record the types of community forms such as living corals and identify the species of coral reefs found in three islands in the state of Melaka in Pulau Undan, Pulau Dodol, and Pulau Serimbun. The study also implemented method observation by conducting field studies on the islands involved by doing scuba diving. Results and discussion of the search, these three islands are located in very clean, uninhabited waters. They have a wide range of coral biodiversity using soft coral reefs and hard coral reefs. The study also found that the three islands in the state have the largest coral reefs in the waters of the Straits of Melaka. Keywords: Biodiversity; Conservation; Coral; Three island; Melaka

Chlorinated and brominated persistent compounds in hard coral, soft coral, and parrotfish from remote Mascarene islands

Chemosphere ◽  
2021 ◽  
Vol 267 ◽  
pp. 129316
Author(s):  
Veronica van der Schyff ◽  
Marinus du Preez ◽  
Karin Blom ◽  
Nee Sun Choong Kwet Yive ◽  
Jana Klánová ◽  
...  
Keyword(s):  
Soft Coral ◽  
Hard Coral ◽  
Mascarene Islands

scholarly journals Macrobenthic Composition of Sea Water Associated with Seagrass in East and West Portions of the Igang Bay, Nueva Valencia, Guimaras

2012 ◽  
Vol 7 (1) ◽  
Author(s):  
Mary Jean L. De La Cruz ◽  
June Raymund Peter Flores ◽  
Melchor M. Magramo ◽  
Christy Madas ◽  
Marlon Terunez
Keyword(s):  
Water Depth ◽  
Hermit Crab ◽  
Soft Coral ◽  
Sea Water ◽  
Hard Coral ◽  
Seagrass Community ◽  
East And West

The macrobenthic invertebrates are associated with seagrass communities in East and West at the Igang Bay, Nueva Valencia, Guimaras. Seven groups were found in West Igang which includes the hard coral, gastropod, bivalve, soft coral, starfish, limpet, hermit crab and cowrie while eight groups composed of bivalve, gastropod, snail, cowrie, hard coral, hermit crab and sponge were found in the seagrass community of East Igang. Results show that gastropod was the dominating group in both sites. The hard coral group was the most frequent to occur in West Igang while the gastropod in East Igang was frequently observed. Common groups in both sites were hard coral, gastropod, bivalve, and cowrie. West Igang had higher diversity of macrobenthos (H’ = 0.608) than the East Igang with (H’ = 0.513). Both sites have sandy, silty-muddy type of substrates although some portions of West Igang were rocky. Salinity ranged from 28 to 30 parts per thousand and temperature from 20.67 to 32.67 degrees Celsius. Water depth recorded ranged from 0.43 to 0.60 meters. The higher variability of substrates in West Igang probably promoted the higher diversity of macrobenthic groups in the area suitable for different attachments and mobility along with denser growth of seagrass in the said site. Keywords - Seagrass, Igang Bay, Macrobenthic invertebrates, hard corals, gastropod, bivalve

scholarly journals KERAGAMAN SUBSTRAT BAGI NUDIBRANCH DI SELAT LEMBEH

2019 ◽  
Vol 7 (2) ◽  
pp. 79
Author(s):  
Yehezkiel S.P.H. Marpaung ◽  
Medy Ompi ◽  
Indri Manembu ◽  
Kakaskasen A. Roeroe ◽  
N. Gustaf F. Mamangkey ◽  
...  
Keyword(s):  
Food Sources ◽  
Hard Coral ◽  
Dead Coral ◽  
Lembeh Strait

Research on the diversity of nudibranch substrates was carried out in Lembeh Strait at 3 locations, at Nudifall, Makawide, and Nudiritrit.  The purpose of the researchs 1) to discover the nudibranch species at Nudifall, Makawide, Nudiritrit in the Lembeh Strait. 2) to knowing the substrate occupied by nudibranchs in the Lembeh Strait. 3) to knowing the overlapping substrate that was occupied by the nudibranch. Subtrates can to be used by nudibranches to get food sources, shelter from predators, and as a place to live. Nudibranch species found in the Lembeh Strait were 19 species in this study. Dead Coral with Algae (DCA), sponges, algae, hard coral, and tunicates were the types of substrate where nudibranches live in the Lembeh Strait The most dominant or overlapping substrate between types of nudibranchs was Dead Coral with Algae. Keywords : Nudibranch, Substrate, Lembeh Substrate diversity of nudibranch at Lembeh Strait            Penelitian mengenai keragaman substrat nudibranch dilakukan di Selat Lembeh pada 3 lokasi yaitu Nudifall, Makawide, dan Nudiritrit.  Tujuannya yaitu 1) mengetahui jen nudibranch di Nudifall, Makawide, Nudiritrit di Selat Lembeh. 2) mengetahui substrat yang ditempati nudibranch di Selat Lembeh. 3) mengetahui substrat yang tumpang tindih (overlap) yang ditempati oleh nudibranch. Subtrat dapat dimanfaatkan oleh nudibranch untuk mendapatkan sumber makanan, tempat berlindung dari predator, dan sebagai tempat tinggal.  Jenis nudibranch yang ditemukan di Selat Lembeh ada 19 spesies dalam penelitian ini.  Dead Coral with Algae (DCA), spons, alga, hard coral, dan tunikata merupakan substrat-substrat tempat hidup nudibranch di Selat Lembeh. Substrat yang paling dominan atau tumpang tindih antar jenis dari nudibranch adalah DCA. Kata kunci : Nudibranch, Substrat, Lembeh.

scholarly journals Laju Pertumbuhan dan Pertumbuhan Mutlak Karang Lunak Cladiella sp. pada Substrat yang Berbeda

2020 ◽  
Vol 23 (1) ◽  
pp. 29
Author(s):  
Diah Putri Fitriani ◽  
Muhammad Zainuri ◽  
Wahyu Andy Nugraha
Keyword(s):  
Growth Rate ◽  
Survival Rate ◽  
Soft Coral ◽  
Soft Corals ◽  
Dead Coral ◽  
Absolute Growth Rate ◽  
Significant Difference ◽  
Absolute Growth ◽  
Hard Substrates ◽  
Selection Of

Soft corals have a soft textured skeletal like tiny spikes made of calcium carbonate present in their tissues. In general, soft corals are attached to hard substrates in the bottom of the waters. This study aims to determine the survival rate, relative and absolute growth rate, and comparison of soft coral growth rates on different substrates. The survival rate obtained was 100%, or 20 soft coral fragments lived until the end of the study. The growth rate and absolute growth of soft coral is relatively varied due to environmental and water quality, with the highest growth rate and absolute growth found in rubble substrate. week and 2,875 cm / week. There was no significant difference in growth rate of soft coral Cladiella sp. on the different substrate. In transplantation or soft coral cultivation activities, the selection of substrates becomes very important, and it is recommended to use rubble or dead coral substrates. Karang lunak mempunyai tekstur  kerangka yang lunak berupa duri-duri kecil dari kalsium karbonat yang ada dalam jaringan tubuhnya. Pada umumnya karang lunak melekat pada substrat yang keras di dasar perairan. Penelitian ini bertujuan untuk mengetahui tingkat kelangsungan hidup, laju pertumbuhan relatif dan mutlak, dan perbandingan laju pertumbuhan karang lunak pada substrat yang berbeda. Tingkat kelangsungan hidup yang didapatkan yaitu 100 % atau 20 fragmen karang lunak dapat hidup sampai akhir penelitian. Laju pertumbuhan karang lunak relatif bervariasi karena pengaruh lingkungan dan kualitas air. Laju pertumbuhan dan pertumbuhan mutlak karang lunak Cladiella sp. relatif bervariasi karena pengaruh perbedaan substrat yang berbeda, dengan laju pertumbuhan dan pertumbuhan mutlak tertinggi ditemukan pada substrat rubble. Tidak ada perbedaan yang nyata pada laju pertumbuhan karang lunak Cladiella sp. pada substrat yang berbeda. Pada kegiatan transplantasi ataupun budidaya karang lunak, pemilihan substrat menjadi sangat penting, dan disarankan untuk menggunakan substrat rubble atau karang mati.

HUBUNGAN KONDISI TERUMBU KARANG DENGAN KELIMPAHAN IKAN KARANG TARGET DI PERAIRAN PULAU TINABO BESAR, TAMAN NASIONAL TAKA BONERATE, SULAWESI SELATAN

2017 ◽  
Vol 3 (2) ◽  
Author(s):  
Muhammad Albar Ghiffar ◽  
Andi Irham ◽  
Syawaludin A. Harahap ◽  
Nia Kurniawaty ◽  
Sri Astuty
Keyword(s):  
Coral Reef ◽  
Life Form ◽  
Total Abundance ◽  
Dead Coral ◽  
Visual Census ◽  
Underwater Visual Census ◽  
Depth Data ◽  
Coral Abundance ◽  
Mortality Index ◽  
Target Fish

This research aims to understand the condition of coral reef (life coral), the abundance of reef target fishes, and the corellation between those two variables. This research has been conducted in Tinabo Besar Island with 6 sampling stations in 5-6 meter depth. Data collected are substrate cover precentage (life form), and the number of reef target fish appeared from 7 specified families (Serranidae, Lutjanidae, Haemulidae, Lethrinidae, Scaridae, Siganidae, and Acanthuridae) using Underwater Photo Transect (UPT) and Underwater Visual Census (UVC). Substrate cover analyzed using CPCe software with life coral, dead coral, algae, abiotic, and other biota cover output. Mortality Index (MI) obtained from the ratio of life coral and dead coral. The result shows that percentage of life coral coverlie between 11.87% to 38.80%, with dominance of Coral Masive (CM). It’s mean that the coral reef condition is in poor to moderate category. Coral death ratio is low with MI between 0.15 to 0.30. Reef target fish total abundance is 493 individual/2100m2 from 31 species, with dominance from Lutjanidae family (173 individual). The result shows positive and strong enough correlation between coral reef coverage and reef target fish abundance (r=0.65) with Determinantion Coefficient at 42.55%. Linear regression is y=-12.929+3.7562x, where in every addition of coral reef cover percentage, resulted in addition of 4 fishes.Keyword: life coral, abundance, reef target fish, correlation, Tinabo Besar Island

Distribution, diversity and abundance of coral communities in the coastal waters of Pakistan

2013 ◽  
Vol 94 (1) ◽  
pp. 75-84 ◽  
Author(s):  
Amjad Ali ◽  
Rupert Ormond ◽  
Wera Leujak ◽  
Pirzada Jamal A. Siddiqui
Keyword(s):  
Coastal Waters ◽  
Coral Species ◽  
Soft Coral ◽  
Single Species ◽  
Abundant Species ◽  
Pocillopora Damicornis ◽  
Soft Corals ◽  
Hard Coral ◽  
Black Coral ◽  
Coral Communities

We assessed the distribution, diversity and abundance of corals in Pakistani waters. A total of 29 hard coral species (eight families and 14 genera), one black coral species and eight soft coral species (three families and seven genera) were recorded from 18 dive sites at nine locations along the coastline. Distribution of hard corals was extremely poor at Mubarak Village and Sandspit, and corals were not found at Goth Abdul Rehman, Gadani (Kuchiani) and Buleji. Moderately rich coral communities were recorded at Churna Island and at more exposed sites around Astola Island. By contrast highly diverse hard coral communities, with up to 80% cover, were found only at the northern sheltered side of Astola Island where Favites complanata, Favites pentagona, Coscinaraea monile and Porites nodifera were the most abundant species. Favites complanata was recorded from most dive sites at Astola Island. Porites nodifera and Pocillopora damicornis, and to a lesser extent Porites harrisoni, Leptastrea pruinosa and Psammocora obtusangulata formed large single species stands. No ‘true’ coral reef was found at any dive site; however, the formation of proto-reefs was evident around Astola Island. Soft corals were dominant at most exposed sites, particularly at Ormara (Roadrigues Shoals) and Jiwani. By comparing diversity with other locations in the region, corals distribution and growth appear to be fairly poor in Pakistan.

Sign in / Sign up

Export Citation Format

Share Document