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All Journal AL KAUNIYAH ZOO INDONESIA Marine Research in Indonesia
Ernawati Widyastuti, Ernawati
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Materials Science & Nanotechnology Other

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 1 
Pola sebaran dan zonasi krustasea di hutan bakau perairan Teluk Lampung Pratiwi, Rianta; Widyastuti, Ernawati
ZOO INDONESIA Vol 22, No 1 (2013): Juli 2013
Publisher : Masyarakat Zoologi Indonesia

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Abstract

Pengamatan tentang pola sebaran dan zonasi krustasea di hutan bakau perairan Teluk Lampung telah dilakukan pada bulan Maret dan April 2007. Terlihat adanya pemilihan habitat dari krustasea, sehingga terjadi zonasi-zonasi walaupun tidak terlihat jelas mulai dari bagian pantai (air) ke bagian daratan (mangrove). Pola sebaran krustasea pada umumnya mengelompok, sebagian acak dan acak cenderung mengelompok.
Keanekaragaman Kepiting pada Ekosistem Mangrove di Perairan Lingga Utara dan Sekitarnya, Kepulauan Riau Widyastuti, Ernawati
ZOO INDONESIA Vol 25, No 1 (2016): Juli 2016
Publisher : Masyarakat Zoologi Indonesia

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Abstract

Penelitian keanekaragaman kepiting pada ekosistem mangrove di Perairan Lingga dan sekitarnya telah di-lakukan pada bulan Oktober 2014. Kepiting dikoleksi dari sepuluh stasiun menggunakan metode acak, dari transek kuadran 1x1 m2 pada luasan 10 x 10 m2 pada tiap stasiun. Hasil penelitian diperoleh sebanyak 19 jenis kepiting dari 11 marga dan 6 suku. Sesarmidae merupakan suku yang paling melimpah dengan 11 jenis dan 109 individu. Hasil analisa kuantitatif diperoleh nilai indeks keanekaragaman tertinggi ditemukan di Pulau Bakau Kecil (St.8, H= 1.954, d= 2.485) dan nilai indeks kemerataan jenis tertinggi ditemukan di Pulau Gajah (St.4, J= 0.971).
NEW RECORD OF PARASESARMA RAOULI RAHAYU AND NG, 2009 (CRUSTASEA: BRACHYURA: SESARMIDAE) FROM THE RIAU ARCHIPELAGO, INDONESIA Widyastuti, Ernawati; Rahayu, Dwi Listyo
Marine Research in Indonesia Vol 41, No 1 (2016)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (795.148 KB) | DOI: 10.14203/mri.v41i1.93

Abstract

 A specimen of Parasesarma raouli (Crustacea: Brachyura: Sesarmidae) was collected from the mangrove area of Pulau Berang, Lingga, Riau Archipelago, Indonesia in Oktober 2014. This species previously was known only from Johor strait, Peninsular Malaysia. Its color in life is recorded for the first time. 
ON THE NEW RECORD OF Lithoselatium kusu Schubart, Liu and Ng, 2009 FROM INDONESIA (CRUSTACEA: BRACHYURA: SESARMIDAE) Widyastuti, Ernawati; Rahayu, Dwi Listyo
Marine Research in Indonesia Vol 42, No 2 (2017)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1057.548 KB) | DOI: 10.14203/mri.v42i2.209

Abstract

Lithoselatium kusu Schubart, Liu and Ng, 2009 previously known from Singapore and surrounding areas, in this paper reported for the first time from Indonesia. The specimens for this study were collected from under rocks and coral rubble around mangrove areas in Lingga, Indonesia. The morphological characteristics and differences of the three known species of this genus are presented.
MANGROVE BRACHYURAN CRABS IN WORI, NORTH SULAWESI, INDONESIA Pratiwi, Rianta; Widyastuti, Ernawati
Marine Research in Indonesia Vol 43, No 2 (2018)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (723.73 KB) | DOI: 10.14203/mri.v43i2.300

Abstract

The study for faunal diversity from mangrove sites in Wori were very less work carried out, especially on brachyuran crab taxa. Healthy mangrove forests provide  a critical for many species of Crabs in intertidal and estuarine areas are keys to healthy marine ecology. Mangroves are the most suitable feeding, breeding and nursery grounds for crabs and other crustaceans. In this study, the habitat distribution and diversity of crabs in Wori mangrove environment was recorded from  October 2015 and August 2016. In view of the significance of the mangrove habitat, in present study we selected three station with different habitat specifications as in  Wori Seaward (WSW), Wori Middle zone (WMZ) and Wori Landward (WLW). Total 15 species and 307 individuals of brachyuran crabs were recorded belonging to 10 genera and 6 families. Crabs belonging to family Sesarmidae was most dominant with 7 species. The other major outcome of study was maximum diversity was found at Wori Landward (WLW) site with 13 species, followed by Middle Zone (WMZ) site with 11 species and Wori Seaward (WSW) site with 10 species. Keywords: Brachyuran crabs, mangroves, mud flats, estuary, Wori, Bitung, North Sulawesi Indonesia
ON THE NEW RECORD OF Lithoselatium kusu Schubart, Liu and Ng, 2009 FROM INDONESIA (CRUSTACEA: BRACHYURA: SESARMIDAE) Widyastuti, Ernawati; Rahayu, Dwi Listyo
Marine Research in Indonesia Vol 42 No 2 (2017)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1057.548 KB) | DOI: 10.14203/mri.v42i2.209

Abstract

Lithoselatium kusu Schubart, Liu and Ng, 2009 previously known from Singapore and surrounding areas, in this paper reported for the first time from Indonesia. The specimens for this study were collected from under rocks and coral rubble around mangrove areas in Lingga, Indonesia. The morphological characteristics and differences of the three known species of this genus are presented.
MANGROVE BRACHYURAN CRABS IN WORI, NORTH SULAWESI, INDONESIA Pratiwi, Rianta; Widyastuti, Ernawati
Marine Research in Indonesia Vol 43 No 2 (2018)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (723.73 KB) | DOI: 10.14203/mri.v43i2.300

Abstract

The study for faunal diversity from mangrove sites in Wori were very less work carried out, especially on brachyuran crab taxa. Healthy mangrove forests provide  a critical for many species of Crabs in intertidal and estuarine areas are keys to healthy marine ecology. Mangroves are the most suitable feeding, breeding and nursery grounds for crabs and other crustaceans. In this study, the habitat distribution and diversity of crabs in Wori mangrove environment was recorded from  October 2015 and August 2016. In view of the significance of the mangrove habitat, in present study we selected three station with different habitat specifications as in  Wori Seaward (WSW), Wori Middle zone (WMZ) and Wori Landward (WLW). Total 15 species and 307 individuals of brachyuran crabs were recorded belonging to 10 genera and 6 families. Crabs belonging to family Sesarmidae was most dominant with 7 species. The other major outcome of study was maximum diversity was found at Wori Landward (WLW) site with 13 species, followed by Middle Zone (WMZ) site with 11 species and Wori Seaward (WSW) site with 10 species.  
NEW RECORD OF PARASESARMA RAOULI RAHAYU AND NG, 2009 (CRUSTASEA: BRACHYURA: SESARMIDAE) FROM THE RIAU ARCHIPELAGO, INDONESIA Widyastuti, Ernawati; Rahayu, Dwi Listyo
Marine Research in Indonesia Vol 41 No 1 (2016)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (795.148 KB) | DOI: 10.14203/mri.v41i1.93

Abstract

 A specimen of Parasesarma raouli (Crustacea: Brachyura: Sesarmidae) was collected from the mangrove area of Pulau Berang, Lingga, Riau Archipelago, Indonesia in Oktober 2014. This species previously was known only from Johor strait, Peninsular Malaysia. Its color in life is recorded for the first time. 
Struktur Komunitas dan Keanekaragaman Makrobentos di Perairan Teluk Jakarta Wulandari, Diah Anggraini; Widyastuti, Ernawati; Wirawati, Ismiliana; Subandi, Riyana
Al-Kauniyah: Jurnal Biologi Vol 14, No 1 (2021): AL-KAUNIYAH JURNAL BIOLOGI
Publisher : Department of Biology, Faculty of Science and Technology, Syarif Hidayatullah State Islami

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/kauniyah.v14i1.16277

Abstract

AbstrakTeluk Jakarta di perairan Laut Jawa terletak di sebelah utara Provinsi DKI Jakarta memiliki potensi sangat besar baik sumber daya perairannya maupun sebagai pusat aktivitas dan jasa-jasa lingkungan. Potensi pusat aktivitas meliputi sektor industri, perhubungan, perdagangan, perikanan, pariwisata, dan kependudukan. Namun kondisi perairan Teluk Jakarta semakin lama semakin kritis. Kondisi ini berpengaruh terhadap biota makrobentos seperti Mollusca, Crustacea, Echinodermata, dan Polychaeta. Penelitian ini bertujuan untuk mengetahui struktur komunitas makrobentos dan status pencemaran perairan Teluk Jakarta berdasarkan indikator biologis. Metode pengambilan sampel menggunakan Grab Smith McIntyre sebanyak tiga kali ulangan pada 9 lokasi yang berbeda. Sampel dianalisis untuk memperoleh keanekaragaman dan struktur komunitas makrobentos, indeks keanekaragaman (H’), indeks kemerataan jenis (J’), serta kualitas perairan Teluk Jakarta. Hasil menunjukkan perairan Teluk Jakarta didominasi oleh Polychaeta dengan persentase 53% (422 individu), Mollusca 33%, Crustacea 13%, dan Echinodermata 1% dengan total individu makrobentos, yaitu 793 individu. Kelimpahan makrobentos paling tinggi, yaitu Mollusca jenis Ennucula sp. (186 individu), Crustacea jenis Apseudes sp. (41 individu), dan Echinodermata jenis Aphiuridae (3 individu). Keanekaragaman jenis di perairan Teluk Jakarta termasuk kategori sedang dengan H indeks 1–2, kondisi perairan tercemar sedang, dan indeks kemerataan jenis (J’) makrobentos tinggi dengan nilai indeks >0,75 yang menunjukkan tidak adanya dominansi spesies. Abstract Jakarta Bay is located in the north of DKI Jakarta Province which has enormous potential in its water resources and as a center for environmental services. The center services include the industrial sector, transportation, trade, fisheries, tourism, and population. However, Jakarta Bay waters have suffered critical damage. This condition affects on macrobenthos such as Molluscs, Crustaceans, Echinoderms, Polychaete so the aims of this study is to determine the diversity pollution status of Jakarta Bay based on biological indicators. The sampling method use Grab Smith McIntyre with three replications in 9 different locations. Samples were analyzed to determine the diversity and structure community of macrobenthos, diversity index (H'), index of Evenness (J’) and the water quality of Jakarta Bay based on biological indicators. The results show that Jakarta Bay waters are dominated by Polychaete with a percentage of 53% (422 individuals), mollusks 33%, Crustaceans 13%, and Echinoderms 1% with a total of 793 individuals. Crustaceans consist of 23 species which are dominated by Apseudes sp. Mollusks consist of 265 individuals dominated by Ennucula sp and Echinoderms dominated by Amphiuridae. The level of species diversity in the waters of Jakarta Bay is included in the moderate category with H index 1–2, with moderate polluted waters, and the evenness index (J’) is in the high category with an index value >0,75. It indicate the absence of species dominance.
Co-Authors Rahayu, Dwi Listyo Rahayu, Dwi Listyo Rianta Pratiwi Subandi, Riyana Wirawati, Ismiliana Wulandari, Diah Anggraini