scholarly journals SPECIES COMPOSITION, DISTRIBUTION, AND POTENTIAL YIELD OF DEEP SEA SHRIMP RESOURCES IN THE WESTERN SUMATERA OF THE INDIAN OCEAN EEZ OF INDONESIAN WATERS

2017 ◽  
Vol 12 (2) ◽  
pp. 159
Author(s):  
Ali Suman ◽  
Wudianto Wudianto ◽  
Gatut Bintoro
Keyword(s):  
Indian Ocean ◽  
Species Composition ◽  
Deep Sea ◽  
Composition Distribution ◽  
Potential Yield ◽  
Area Method ◽  
The Indian Ocean ◽  
Catch Composition ◽  
Swept Area

study on the catch composition, distribution and potential yield of deep sea shrimp in the westem off sumarera waters was conducled on June to July 2005 using RV Baruna Jaya lV with trawl net. This study was basicarry caffied out by emproying swept area method

scholarly journals POTENTIAL YIELD OF DEEP SEA SHRIMP RESOURCES IN THE SOUTHERN JAVA OF THE INDIAN OCEAN EEZ WATERS

2017 ◽  
Vol 14 (1) ◽  
pp. 7
Author(s):  
Ali Suman ◽  
Muhammad Rijal ◽  
Gatut Bintoro
Keyword(s):  
Indian Ocean ◽  
Deep Sea ◽  
Research Vessel ◽  
The South ◽  
Potential Yield ◽  
Area Method ◽  
The Indian Ocean ◽  
Swept Area

Study on the potential yield of deep sea shrimp in the south off Java waters (lndian Ocean) was carried out based on data collected from the survey conducted between May and June 2005 using Baruna Jaya IV research vessel. This study was basically conducted by applying swept area method.

scholarly journals CATCH COMPOSITION, BIOMASS, AND DISTRIBUTION OF CEPHALOPHODS IN THE INDIAN OCEAN OF SOUTHERN JAVA AND WESTERN SUMATERA

2017 ◽  
Vol 12 (2) ◽  
pp. 101
Author(s):  
Awwaluddin Awwaluddin ◽  
Ali Suman ◽  
Fayakun Satria ◽  
Suprapto Suprapto
Keyword(s):  
Indian Ocean ◽  
Species Composition ◽  
Deep Sea ◽  
Catch Rate ◽  
The Indian Ocean ◽  
Species Composition And Distribution ◽  
Catch Composition

An exploratory trawling to obtain data on the catch rate, species composition, and distribution of the deep sea cephalophods in the Indian Ocean of southern Java and eastern Sumatera using the RV Baruna Jaya lV was carried out during May 2 to July 7 year 2005.

scholarly journals KOMPOSISI JENIS, PENYEBARAN, DAN KEPADATAN STOK IKAN DEMERSAL LAUT DALAM DI PERAIRAN SAMUDERA HINDIA SELATAN JAWA DAN BARAT SUMATERA

2017 ◽  
Vol 13 (1) ◽  
pp. 43
Author(s):  
Ali Suman ◽  
Budi Iskandar Prisantoso ◽  
Fayakun Satria ◽  
Enjah Rahmat
Keyword(s):  
Species Composition ◽  
Deep Sea ◽  
Random Sampling ◽  
Demersal Fish ◽  
Total Catch ◽  
Composition Distribution ◽  
Trichiurus Lepturus ◽  
The Indian Ocean ◽  
Swept Area ◽  
Study Species

Penelitian bertujuan untuk mengkaji komposisi jenis, penyebaran, dan kepadatan stok ikan demersal laut di perairan ZEEI selatan Jawa dan barat Sumatera. Data yang dianalisis merupakan hasil survei yang dilakukan bulan September sampai dengan Oktober 2004 dengan menggunakan K.M. Baruna Jaya IV. Estimasi kepadatan stok dilakukan dengan menggunakan metode sapuan dengan pengambilan contoh acak bertingkat. Hasil penelitian menunjukkan bahwa komposisi jenis ikan demersal laut dalam di perairan selatan Jawa terdiri atas 169 spesies ikan, 31 spesies krustasea, dan 20 spesies Chepalopoda. Komposisi hasil tangkapan ikan didominasi oleh ikan ashiro (Lamprogrammus niger) sekitar 45% dan ikan layur (Trichiurus lepturus) sekitar 22%. Di perairan barat Sumatera ditemukan komposisi jenis hasil tangkapan meliputi 281 spesies ikan, 42 spesies krustasea, dan beberapa spesies Chepalopoda serta jenis yang dominan adalah ikan ashiro (Lamprogrammus niger) sekitar 20% dan Hoplosthethus sp. sekitar 17%. Jenis ikan demersal laut dalam yang memiliki penyebaran paling luas adalah Chlorophtalmus nigromarginatus di perairan selatan Jawa dan Diretmoides pauciradiatus di perairan barat Sumatera. Kelimpahan stok ikan demersal laut dalam tertinggi ditemui pada kedalaman 700 sampai dengan 1.100 m dan terendah didapatkan pada kedalaman 200 sampai dengan 400 m. Kepadatan stok ikan demersal laut dalam berkisar antara 0,8 sampai dengan 39,9 ton km-2 di perairan selatan Jawa dan berkisar 0,2 sampai dengan 7,4 ton km-2 di perairan barat Sumatera. The objective of this research is to study species composition, distribution, and stock density of deep sea demersal fish in the southern Java and western Sumatera of the Indian Ocean EEZ waters. The study was done based on the data collected from the survey conducted between September and October 2004 using Baruna Jaya IV research vessel. The study was basically conducted by applying swept area method with stratified random sampling. The results show that the species composition of deep sea demersal in southern off Java waters consisted of 169 in fishes, 31 in crustaceans, and 20 in chephalopods. The catch of deep sea demersal fish was dominated by ashiro (Lamprogrammus niger) about 45%and hair tail (Trichiurus lepturus) about 22%. Species composition of deep sea demersal fish in west off Sumatera waters consisted of 281 species of fishes, 42 species in crustaceans and some types of chepalopods. The dominant species was Lamprogrammus niger (ashiro) with about 20% of the total catch and Hoplosthethus sp. with about 17% of the total catch. The widest species distribution of is resource was Chlorophtalmus nigromarginatus in southern off Java waters and Diretmoides pauciradiatus in western off Sumatera waters. The highest abundances of deep sea resources were caught at the depth of 700 to 1,100 m and the lowest at the depth of 200 to 400 m. Stock density in southern off Java waters was 0.8 to 39.9 ton km-2 and about 0.2 to 7.4 ton km-2 in western off Sumatera waters.

scholarly journals KOMPOSISI JENIS, DISTRIBUSI, DAN KEPADATAN STOK IKAN EKOR TIKUS (MACROURIDAE) DI PERAIRAN LAUT DALAM ZONA EKONOMI EKSKLUSIF INDONESIA SAMUDERA HINDIA

2017 ◽  
Vol 14 (4) ◽  
pp. 403
Author(s):  
Suprapto Suprapto
Keyword(s):  
Indian Ocean ◽  
Species Composition ◽  
Species Distribution ◽  
Random Sampling ◽  
Stratified Random Sampling ◽  
Composition Distribution ◽  
Fish Resources ◽  
The Indian Ocean ◽  
Swept Area ◽  
Study Species

Penelitian ini bertujuan untuk mengkaji, komposisi jenis, penyebaran, dan kepadatan stok ikan ekor tikus (Macrouridae) di perairan laut dalam zona ekonomi eksklusif Indonesia Samudera Hindia meliputi selatan Jawa dan barat Sumatera. Data yang dianalisis merupakan sebagian hasil survei yang dilakukan bulan Juni sampai dengan Agustus 2005 dengan menggunakan K. R. Baruna Jaya (1.219 GT). Estimasi kepadatan stok dilakukan dengan menggunakan metode sapuan dengan pengambilan contoh acak bertingkat. Hasil penelitian menunjukkan bahwa, ikan ekor tikus (Macrouridae) yang tertangkap terdiri atas 35 spesies, mewakili 11 genera. Komposisi hasil tangkapan didominansi oleh spesies Caelorinchus divergens dan Caelorinchus smithi, (19,2 sampai dengan 77,2%). Penyebaran laju tangkap secara horisontal, paling tinggi ditemukan di perairan selatan Jawa, sebaliknya semakin ke arah perairan barat Sumatera, cenderung rendah. Sedangkan secara vertikal, laju tangkap cenderung meningkat seiring dengan bertambah kedalaman. Laju tangkap paling tinggi pada umumnya berada pada kedalaman mulai dari 500 sampai dengan 1.200 m. Jumlah spesies yang tertangkap pada kedalaman lebih dangkal (200 sampai dengan 300 m) relatif sedikit, selanjutnya semakin bertambah kedalaman, jumlah spesies tersebut cenderung meningkat. Spesies yang memperlihatkan penyebaran paling luas terdiri atas Coryphaenoides sp.1 dan Macrouridae sp.1. Kelimpahan stok ikan ekor tikus (Macrouridae) tertinggi ditemukan pada kisaran kedalaman 800 sampai dengan 900 m dan terendah pada kedalaman 200 sampai dengan 300 m. Kepadatan stok di perairan sebelah selatan Jawa, berkisar antara 4 sampai dengan 1.221 kg km-2, rata-rata sekitar 336,53 kg km-2. Sedangkan di perairan barat Sumatera berkisar antara 0,85 sampai dengan 478,4 kg km-2, rata-rata sekitar 167,30 kg km-2. The objective of this research is to study species composition, distribution, and stock density of rattail fish (Macrouridae) in the waters of southern Java and western Sumatera of the Indian Ocean Indonesian ekslusive economic zone. The study was done based on the data collected from the survey conducted between June and August 2005 using R. V. Baruna Jaya IV (1,219 GT). The study was basically conducted by applying swept area method with stratified random sampling. The results show that the species composition of rattail fish in the of the waters Indian Ocean consisted of 35 spesies and 11 genera. The catch of Macrouridae was dominated by Caelorinchus divergens and Caelorinchus smithi about 19.2 to 77.2%. The widest species distribution of this resources was Coryphaenoides sp.1 and Macrouridae sp.1. The highest abundance of rattail fish resources was caught at the depth of 800 to 900 m and the lowest at the depth of 200 to 300 m. Stock density in southern off Java waters ranging from 4 to 1.221 kg km-2 and about 0,85 to 478,4 kg km-2 in western off Sumatera waters.

The crucial boundaries in the development of the late cretaceous biota of plankton foraminifers in the southern part of the Indian ocean

2019 ◽  
Vol 59 (6) ◽  
pp. 1074-1085
Author(s):  
E. A. Sokolova
Keyword(s):  
Indian Ocean ◽  
Species Composition ◽  
Late Cretaceous ◽  
Upper Cretaceous ◽  
Planktonic Foraminifera ◽  
The Indian Ocean ◽  
Systematic Composition ◽  
Climatic Series

The article analyzes own data on the species composition of shells of planktonic foraminifera from the Upper Cretaceous sediments of the Indian Oceans, as well as from the sections of the offshore seas of Australia. The species of planktonic foraminifera are grouped and arranged in a climatic series. An analysis of the change in the systematic composition of foraminifers made it possible to distinguish periods of extreme and intermediate climatic states in the Late Cretaceous.

scholarly journals KEPADATAN STOK IKAN DEMERSAL DAN UDANG DI SAMUDERA HINDIA BARAT SUMATERA PADA MUSIM PERALIHAN II

2017 ◽  
Vol 22 (3) ◽  
pp. 139
Author(s):  
Nurulludin Nurulludin ◽  
Thomas Hidayat ◽  
Asep Mamun
Keyword(s):  
Indian Ocean ◽  
Demersal Fish ◽  
Catch Rate ◽  
Fish Stock ◽  
Fish Resources ◽  
The Indian Ocean ◽  
Density And Biomass ◽  
Swept Area ◽  
Average Catch ◽  
Stock Abundance

Kepadatan stok ikan merupakan indikasi dari potensi perikanan di suatu wilayah yang sangat penting diketahui. Tujuan tulisan ini membahas tentang laju tangkap, kepadatan stok dan perkiraan biomassa ikan demersal serta udang. Penelitian sumber daya ikan demersal dan udang di Samudera Hindia Barat Sumatera dilakukan dengan menggunakan Kapal Riset Baruna Jaya IV (1.200 GT) pada bulan Oktober dan November 2015 (Musim peralihan II). Penghitungan kepadatan stok menggunakan metode sweept area dengan panjang tali ris atas dari jaring trawl 36 m, kecepatan kapal saat menarik jaring berkisar 2,5 – 3 knot, lama penarikan jaring maksimal 1 jam. Perairan Samudera Hindia Barat Sumatera terdiri dari 151 spesies yang tergolong dalam 59 famili. Famili ikan demersal yang dominan tertangkap (5 besar), yaitu Leiognathidae sebesar 23,6 %, Trichiuridae 9,8%, Haemulidae 8,0%,  Engraulididae 6,6%, dan Polynemidae 6,05%. Famili udang yaitu Penaeidae (79,08%), Scyllaridae 19,49%, dan Solenoceridae 1,43%. Rata-rata laju tangkap ikan demersal 205,80 kg/jam, dengan kepadatan stok 6,66 ton/km2 dan udang 2,30 kg/jam dengan kepadatan stok 0,053 ton/km2. Biomassa ikan demersal diperkirakan sebesar 470.122 ton dan udang 3.706 ton.  Fish stock density  is an index of stock abundance indicating the fish resources potential in a region.  This paper discusses the catch rate, stock density and biomass estimates of the demersal fish and shrimp resources. Research on the demersal fish and shrimp resources in the Indian Ocean-Western Sumatera conducted using the Research Vessel Baruna Jaya IV (1200 GT) carried out during  October and November 2015 (2nd intermonsoon season). Stock density was estimated through the swept area method. The trawl used has 36 m headrope, trawling speed of 2.5 - 3 knots, and maximum towing time was 1 hour. It was found that the fish resources in the waters of the Indian Ocean-Western Sumatera consisted of 151 species belonging to 59 families. The top five dominant fish families caught were Leiognathidae of 23.6%, Trichiuridae 9.8%, Haemulidae 8.0%, Engraulididae 6.6%, and Polynemidae 6.05%, while the shrimp families were Penaeidae of 79.08%, Scyllaridae 19.49%, and Solenoceridae 1.43%. The average catch rate of demersal fish was 205.80 kg/hour, with a stock density of 6.66 tons/km2 and shrimp of 2.30 kg/hour with a stock density of 5.3 kgs/km2. The estimated biomass of demersal fish was  470,122 tons and shrimp was 3,706 tons.  

scholarly journals Pararhodobacter marinus sp. nov., isolated from deep-sea water of the Indian Ocean

2019 ◽  
Vol 69 (4) ◽  
pp. 932-936 ◽  
Author(s):  
Qiliang Lai ◽  
Xiupian Liu ◽  
Jun Yuan ◽  
Shuchen Xie ◽  
Zongze Shao
Keyword(s):  
Indian Ocean ◽  
Deep Sea ◽  
Type Species ◽  
Sea Water ◽  
Rrna Gene ◽  
Chromosomal Dna ◽  
Content Type ◽  
Deep Sea Water ◽  
Link Type ◽  
The Indian Ocean

A taxonomic study was carried out on strain CIC4N-9T, which was isolated from deep-sea water of the Indian Ocean. The bacterium was Gram-stain-negative, catalase- and oxidase-positive, rod-shaped and non-motile. Growth was observed at salinities of 0–9% and at temperatures of 4–41 °C. The isolate was able to degrade gelatin but not aesculin. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain CIC4N-9T belonged to the genus Pararhodobacter , with the highest sequence similarity to the only recognized species, Pararhodobacter aggregans D1-19T (96.9 %). The average nucleotide identity and estimated DNA–DNA hybridization values between strain CIC4N-9T and P. aggregans D1-19T were 80.4 and 23.0 %, respectively. The principal fatty acids were summed feature 8 (C18 : 1 ω7c and/or C18 : 1 ω6c), C16 : 0, C18 : 1ω7c 11-methyl, C18 : 0 and C17 : 0. The G+C content of the chromosomal DNA was 66.8 mol%. The sole respiratory quinone was determined to be Q-10. Phosphatidylcholine, phosphatidylglycerol, phosphatidylethanolamine, diphosphatidylglycerol, two unknown phospholipids, four unknown aminolipids and one unknown polar lipid were present. The combined genotypic and phenotypic data show that strain CIC4N-9T represents a novel species within the genus Pararhodobacter , for which the name Pararhodobacter marinus sp. nov. is proposed. The type strain is CIC4N-9T (=MCCC 1A01225T=KCTC 52336T).

scholarly journals Comparison of handline tuna catches in Indian Ocean and Banda Sea waters

2021 ◽  
Vol 322 ◽  
pp. 03004
Author(s):  
Ignatius Tri Hargiyatno ◽  
Regi Fiji Anggawangsa ◽  
Moh. Natsir ◽  
I. Gede Bayu Sedana ◽  
Agustinus Anung Widodo ◽  
...  
Keyword(s):  
Indian Ocean ◽  
Average Length ◽  
Fishing Ground ◽  
Katsuwonus Pelamis ◽  
Thunnus Obesus ◽  
Significant Difference ◽  
Landing Sites ◽  
The Indian Ocean ◽  
Catch Composition ◽  
First Maturity

There are two essential landing sites for handline tuna in Indonesia: Palabuhanratu (in the Indian Ocean) and Kendari (in the Banda Sea). This paper analyzes handline catches from the Indian Ocean and Banda Sea waters as the main fishing ground. The catch composition of the handline tuna landed in Kendari is more varied than Palabuhanratu. Several species commonly caught are yellowfin tuna (Thunnus albacares), skipjack tuna (Katsuwonus pelamis), bigeye tuna (Thunnus obesus) as a target species, and some billfish species as bycatch. Mean CPUE for handline tuna landed in Palabuhanratu is lower than Kendari. A significant difference is based on the monthly mean CPUE variation between Palabuhanratu and Kendari landing sites (p < 0.001). Handline catches in Palabuhanratu had a more comprehensive range of length sizes than Kendari, using a two-sample K-S test showed significant differences (p < 0.001). The fish size landed in Kendari is relatively smaller than Palabuhanratu. The average length of fish caught by handline is smaller than the length at first maturity (Lm) value in both landing sites. The use of large size hook for hand lines is recommended for catching tunas in this area.

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