scholarly journals GEOGRAPHICAL DISTRIBUTION AND STATUS OF SCADS POPULATION IN THE WATERS OF THE SOUTHERN PART OF THE SUNDA SHELF

2017 ◽  
Vol 11 (1) ◽  
pp. 1
Author(s):  
Suherman Banon Atmaja ◽  
Duto Nugroho
Keyword(s):  
South China Sea ◽  
Geographical Distribution ◽  
South China ◽  
The South China Sea ◽  
Purse Seine ◽  
The South ◽  
Offshore Water ◽  
Sunda Shelf ◽  
China Sea

The scads population have long been exploited in ldonesia Exploitation to the offshore water started when purse seine was introdused in 1970. The exploitation extends eastwards to the Macassar Strait and nonhwards to the southern part of the south china sea.

scholarly journals Supplemental Material: Crustal and upper mantle structure beneath the South China Sea and Indonesia

2020 ◽  
Author(s):  
V. Corchete
Keyword(s):  
South China Sea ◽  
Geographical Distribution ◽  
South China ◽  
Upper Mantle ◽  
The South China Sea ◽  
Mantle Structure ◽  
Inversion Process ◽  
The South ◽  
China Sea ◽  
Upper Mantle Structure

Figure S1: Geographical distribution of the 1-sigma errors arisen in computation of the S-velocities shown in Figure 3. The interval between isolines is 0.01 km/s; Figure S2. Resolution maps of the inversion process performed to calculate the S-velocities shown in Figure 3, plotted from 0 (not resolved) to 1 (perfect resolution). The interval between isolines is 0.1.

Weltneria acanthostoma sp. nov., a burrowing barnacle (Cirripedia: Acrothoracica) from the deep-waters of the South China Sea

Zootaxa ◽  
2017 ◽  
Vol 4290 (3) ◽  
pp. 591 ◽  
Author(s):  
GREGORY A. KOLBASOV ◽  
BENNY K.K. CHAN ◽  
YU-RONG CHENG
Keyword(s):  
South China Sea ◽  
Geographical Distribution ◽  
South China ◽  
Deep Water ◽  
The South China Sea ◽  
Blue Ridge ◽  
The South ◽  
Single Female ◽  
China Sea ◽  
Deep Waters

A new deep water acrothoracican species, Weltneria acanthostoma sp. nov., has been discovered from the area of the Blue Ridge Seamount, South China Sea, at a depth of 534 m. A single female was found in a burrow in the scleractinian Madrepora oculata. This specimen is assigned to the genus Weltneria due to the possession of six pairs of cirri and two-joined caudal appendages. Weltneria acanthostoma differs from its congeners in the morphology of the slightly sinusoid opercular bars having hooked posterior processes and four or five curved, conspicuous, simple teeth, and by the absence of a calcareous formation of the attachment disk. The genus Weltneria exhibits a Tethyan relictual pattern in its geographical distribution. The diagnosis of Weltneria is based on symplesiomorphies and the genus may be a non-monophyletic taxon. 

Species composition and geographical distribution of fishes in Tungsha Island and Taiping Island in the South China Sea

2012 ◽  
Vol 19 (6) ◽  
pp. 737-763
Author(s):  
Shao Kwang-Tsao ◽  
Chen Jeng-Ping ◽  
Chen Ching-Yi ◽  
Huang Cheing-Hua ◽  
Kuo Jen-Wei
Keyword(s):  
South China Sea ◽  
Species Composition ◽  
Geographical Distribution ◽  
South China ◽  
The South China Sea ◽  
The South ◽  
China Sea

scholarly journals DISTRIBUSI - KELIMPAHAN DAN HASIL TANGKAPAN CUMI-CUMI DI PERAIRAN PAPARAN SUNDA BAGIAN SELATAN: berbasis pada perikanan Jaring Cumi yang mendarat di Muara Angke dan Kejawanan

2019 ◽  
Vol 25 (4) ◽  
pp. 225
Author(s):  
Suwarso Suwarso ◽  
Achmad Zamroni ◽  
Moh Fauzi
Keyword(s):  
South China Sea ◽  
South China ◽  
The South China Sea ◽  
Target Species ◽  
The South ◽  
Sunda Shelf ◽  
Abundance Index ◽  
China Sea ◽  
Java Sea ◽  
Karimata Strait

Perikanan cumi-cumi telah berkembang di Laut Jawa dan Laut Cina Selatan, didukung oleh alat tangkap bouke ami dan cast net dengan armada penangkap skala menengah. Perikanan berkembang sebagai bentuk diversikasi usaha penangkapan beralih target species akibat terjadinya pergeseran trophic level yang berkaitan dengan perubahan ekosistem serta indikasi pergantian populasi dari sumberdaya ‘multi-species’. Kajian distribusi, kelimpahan dan hasil tangkapan Cumi-cumi (Loliginidae) di perairan Paparan Sunda bagian selatan didasarkan pada data monitoring oleh enumerator tahun 2018 terhadap alat penangkap cumi-cumi (bouke ami dan cast net), didukung oleh data pendaratan per kapal di TPI Muara Angke (Jakarta) periode 2012-2018 dan TPI Kejawanan (Cirebon) periode 2008-2018. Observasi lapangan ditujukan untuk mendeskripsikan karakteristik armada, alat tangkap dan aspek operasional penangkapan. Hasil menunjukkan daerah penangkapan cumi-cumi di Paparan Sunda bagian selatan tersebar luas di Laut Jawa dan Laut Cina Selatan, tapi lebih terkonsentrasi di perairan selatan Selat Karimata yang ditunjukkan oleh tingginya intensitas penangkapan (54% dari total trip penangkapan). Namun demikian, secara umum kelimpahan cumi-cumi (ditunjukkan oleh indek kelimpahan CPUE dalam Kg/hari) hampir seragam sekitar 113-133 kg/hari, sedang indek kelimpahan (CPUE) dalam Kg/trip terlihat berbeda. Perbedaan nyata juga terlihat dari total hasil tangkapan cumi-cumi dari Selat Karimata yang mencapai 55% dari total pendaratan cumi-cumi dari paparan tersebut. Secara umum sebagai target species cumi-cumi berkontribusi sebanyak 93% dari total hasil tangkapan pada alat penangkap cumi. Trend kenaikan hasil tangkapan cumi-cumi berlangsung hingga saat ini baik di Muara Angke maupun Kejawanan. Dalam komposisi jenis prosentase cumi-cumi juga menunjukkan semakin tinggi pada hasil tangkapan pukat (cantrang). Hal-hal terkait pengelolaan perikanan cumi sebagai diversifikasi usaha penangkapan dan pengalihan target species juga dibahas.Squids fishery had well developed in the Java Sea and the South China Sea, was supported by the bouke ami and cast net that were using the medium scale boats. The fisheries developed as the fishing diversification over the species target as an impact of the tropic level changes correspond to the ecosystem changes and substitution of fish population from ‘multi-species’ fish resources. Study of distribution, abundance and catch of squid (Loliginidae) in the southern of Sunda Shelf waters was carried out based on daily monitoring data by enumerators (enumeration data) in 2018 of squid fishing gears (bouke ami, cast net and squid fishing) supported by 201 squid landing data at TPI Muara Angke (Jakarta) for the 2012-2018 period and TPI Kejawanan (Cirebon) for the 2008-2018 period. Field observations are intended to describe the characteristics of the fleet, fishing gear and operational aspects of capture. The results showed that the squid fishing area in the southern part of Sunda Shelf was widespread in the Java Sea and the South China Sea, but concentrated in the southern of Karimata Strait as indicated by the high intensity of catch (54% of the total fishing trips). However, in general the abundance of squid (indicated by the CPUE abundance index in kg / day) is almost the same, which is around 113-133 kg / day, while the abundance index (CPUE) in kg / trip looks different. Significant differences were also seen from the total catch of squid from the Karimata Strait which reached 55% of the total squid landings from the Shelf. The catch of squid that occurred until now shows an upward trend, this is as recorded in Muara Angke and Kejawanan. In catch composition, the percentage of squid also showed higher catches on trawlers (cantrang). Matters related to the management of squid fisheries as a diversification of fishing effort and diversion of target species are also discussed.

Methylmercury in fish from the South China Sea: Geographical distribution and biomagnification

2013 ◽  
Vol 77 (1-2) ◽  
pp. 437-444 ◽  
Author(s):  
Aijia Zhu ◽  
Wei Zhang ◽  
Zhanzhou Xu ◽  
Liangmin Huang ◽  
Wen-Xiong Wang
Keyword(s):  
South China Sea ◽  
Geographical Distribution ◽  
South China ◽  
The South China Sea ◽  
The South ◽  
China Sea

scholarly journals Geophysics Appearance of The South China Sea

2021 ◽  
Vol 11 (2) ◽  
pp. 223
Author(s):  
Eddy Mirnanda
Keyword(s):  
South China Sea ◽  
South China ◽  
Bouguer Anomaly ◽  
The South China Sea ◽  
Crustal Rock ◽  
The South ◽  
Sunda Shelf ◽  
China Sea ◽  
Manila Trench ◽  
Free Air

<p class="AbstractText">South China Sea (SCS) is underlain by sediments of an average density 2.10 g/cm<sup>3</sup> of 2 km thickness at its central part up to 10 km in the margins. The basement rock is the upper and lower crust of densities 2.67 and 2.85 g/cm<sup>3</sup> respectively of varying thicknesses. The thinnest crustal rock is at the centre of SCS that is called the South China Sea Basin (SCSB). The Mohorovicic discontinuity is about 15 km depth below the SCSB. Heatflow values in this basin vary from 2 to 3.5 HFU.</p><p class="AbstractText">Lineations of total magnetic anomaly are generally in a west-east direction covering the whole study area. However, an elongated northeast-southwest lineation of dipole anomaly separates the west-east anomaly patterns in the north from those in the south. This feature is also observed in the gravity map. These elongated patterns of the total magnetic features are in coincident with the occurrences of seamounts inferred being remnant of extinct seafloor spreading. Because of this spreading a crustal extension had taken place that separated Kalimantan from the mainland of China to restore its present position. A paleomagnetic study result confirms this hypothesis.</p><p class="AbstractText">The Palawan trench is marked by north-east trending magnetic and gravity anomaly that is inferred being traces of a remnant subduction zone. This anomaly forms a boundary between the Zengmu also called the Sarawak basin and the SCSB. Here, heat flow value is 1 to 2 HFU. This value in coincident with gravity gradient of 2.5 mGal/km also represents an active subduction of the Manila trench north of the Palawan Island. The Manila trench is supposed to be the energizing source of volcanism and earthquake in the Phillippines. Free-air and Bouguer anomaly of the order of 50 to 60 mGal and magnetic of about 100 nT represent the Zengmu basin in the Sunda Shelf. This basin is underlain by sediments of 2.10 g/cm<sup>3</sup> of 8 km thickness and also crustal rock which is much thicker than the one underneath the SCSB. Strong topographic relief at the surfaces of sedimentary layer and the crustal rock is very my much associated with normal faulting that may cause fluctuation of the free-air values.</p><p class="AbstractText">The continental margins of Sarawak and the Sunda Shelf are areas of hydrocarbon deposits now still in production, whereas the offshores Vietnam and Hainan are promising target for hydrocarbon exploration.</p>

scholarly journals Supplemental Material: Crustal and upper mantle structure beneath the South China Sea and Indonesia

2020 ◽  
Author(s):  
V. Corchete
Keyword(s):  
South China Sea ◽  
Geographical Distribution ◽  
South China ◽  
Upper Mantle ◽  
The South China Sea ◽  
Mantle Structure ◽  
Inversion Process ◽  
The South ◽  
China Sea ◽  
Upper Mantle Structure

Figure S1: Geographical distribution of the 1-sigma errors arisen in computation of the S-velocities shown in Figure 3. The interval between isolines is 0.01 km/s; Figure S2. Resolution maps of the inversion process performed to calculate the S-velocities shown in Figure 3, plotted from 0 (not resolved) to 1 (perfect resolution). The interval between isolines is 0.1.

scholarly journals DEMERSAL FISH RESOURCES RESULT OF MV. SEAFDEC 2 SURVEY IN THE SOUTH CHINA SEA OF INDONESIA

2017 ◽  
Vol 14 (2) ◽  
pp. 67
Author(s):  
Wudianto Wudianto ◽  
Bambang Sumiono
Keyword(s):  
South China Sea ◽  
Shallow Water ◽  
South China ◽  
Deep Water ◽  
Demersal Fish ◽  
The South China Sea ◽  
The South ◽  
Sunda Shelf ◽  
China Sea ◽  
Fish Resources

The South China Sea is belonging to western part of Sunda shelf which consisted of shallow water in the southern part and deep water in the northern part area. The area of Indonesian water in the South China Sea is estimated 595,000 km2 including exclusive economic zone waters.

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