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All Journal Jurnal Pengelolaan Perikanan Tropis (Journal Of Tropical Fisheries Management) Indonesian Aquaculture Journal Jurnal Penelitian Perikanan Indonesia Jurnal Pijar MIPA
Rizky Regina Kawirian
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Decision Sciences, Operations Research & Management Earth & Planetary Sciences Environmental Science Mathematics Physics

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 1 
Productivity of Bentic Organisms (Order Diptera) in Cigambreng River, Tapos Village, Subdistrict Tenjoloya, Bogor Regency, West Java: Produktivitas Sekunder Organisme Bentik (Ordo Diptera) di Sungai Cigambreng, Desa Tapos, Kecamatan Tenjolaya, Kabupaten Bogor, Jawa Barat Kawirian, Rizky Regina; Nurcahyanto, Arif; Abdillah, Didit; Panggabean, Grin Tommy; Afif, Muhammad Irfan; Pulungan, Ahyar; Rahman, Chichilia Qaila Azzahra; Ishak, Mursalin; Krisanti, Majariana
Tropical Fisheries Management Journal Vol 4 No 1 (2020): Jurnal Pengelolaan Perikanan Tropis
Publisher : Departement of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jppt.v4i1.30904

Abstract

Insekta memiliki biodiversitas dengan penyebaran yang luas diseluruh dunia. Sampling dilakukan sekali dalam seminggu selama bulan Oktober 2019. Ditemukan total 717 spesimen Ordo Diptera yang melingkupi dua famili di Sungai Cigambreng. Tiap famili yang diperoleh melingkupi satu jenis yakni Antocha sp. (Famili Tipulidae.) dan Krenopelopia sp. (Chironomidae). Kehadiran jenis chironomid mengindikasikan adanya beban masukan berlebihan (Polutan) ke dalam perairan sungai Cigambreng. Secara umum, kelimpahan tertinggi diperoleh pada pengamatan ke empat yakni 284 ind/m2, sedangkan kelimpahan terendah diperoleh pada pengamatan ke dua yakni 60 ind/m2. Produktivitas sekunder melingkupi P/B Rasio sebesar 3.034/bulan dengan kecepatan produksi 14.2458 (g/m2/bln) dan biomassa (4.6954 g/m2).
Secondary Productivity of Crambidae Family in Cigambreng River, Tapos Village, Bogor: Produktivitas Sekunder Famili Crambidae di Sungai Cigambreng, Desa Tapos, Bogor Nurcahyanto, Arif; Pulungan, Ahyar; Abdillah, Didit; Afif, Muhammad Irfan; Panggabean, Grin Tommy; Kawirian, Rizky Regina; Rahman, Chichilia Qaila Azzahra; Krisanti, Majariana
Tropical Fisheries Management Journal Vol 4 No 1 (2020): Jurnal Pengelolaan Perikanan Tropis
Publisher : Departement of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jppt.v4i1.30905

Abstract

Secondary productivity is the formation of biomass of heterotrophic organisms in units of time including biomass that is lost in a certain time unit. The Crambidae family is an insect that has aquatic larvae and will become an air insect after the larval phase. This species has the potential to become a pest for agriculture. The study was conducted in October 2019 for one month. The Crambidae family species found consists of two species, Petrophila sp. and Elophila sp. The abundance of Crambidae during the study ranged from 100 ind/m2 to 422 ind/m2. Secondary productivity was analyzed by the size frequency method. The secondary productivity of the Crambidae family in Cigambreng river waters for one month was 47.7915 g/m2/month, the biomass formed was 14.9669 g/m2 and the P/B ratio was 3.1931.
Abundance and diversity of phytoplankton at sekotong bay waters Western Lombok Lalu Japa; Noar Muda Satyawan; Rizky Regina Kawirian
Jurnal Pijar Mipa Vol. 16 No. 5 (2021): November 2021
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (535.945 KB) | DOI: 10.29303/jpm.v16i5.1702

Abstract

Phytoplankton is one of the important components in aquatic ecosystems. This organism plays an important role as a primary producer to support the life of the tropics above it. The purposes of this study were to reveal the abundance and diversity of phytoplankton species in the waters of Sekotong Bay, West Lombok. Sampling were conducted in July 2018 at 8 stations using plankton net and then observed at the Laboratory. The results of the abundance calculations show a varied pattern at each observation station. The highest abundance was found at station 8 (9,060 ind/L) followed by station 6 (8,300 ind/L), station 7 (6,490 ind/L), station 4 (4,440 ind/L), station 3 (3,980 ind/L) , station 5 (2,820 ind/L), station 2 (2,460 ind/L) and station 1 (2,440 ind/L). The Shannon - Wiener Species diversity Index also shows diverse patterns at each station. Station 7 has the highest diversity index value (H′ = 3.55), followed by station 6 (H′ = 3.46), station 8 (H′ = 3.18), station 1 (H′ = 2.72) , station 2 (H′ = 2.69), station 5 (H′ = 2.67), station 4 (H′ = 2.33) and station 3 (H′ = 2.26). Species dominance index at all stations at low category with the highest dominance found at station 3 (D = 0.19), followed by station 4 (D = 0.18), station 2 (D = 0.09), station 5 (D = 0, 09), station 1 (D = 0.08), station 8 (D = 0.06), station 6 (D = 0.05) and station 7 (D = 0.04). Species Evennes index (E) values ranged from 0.71 to 0.88, indicating that the number of individual species was relatively the same and the ecosystem was in relatively good condition. The analysis showed that the spatial pattern of abundance and diversity of phytoplankton species in Sekotong Bay was related to the distance from the estuary.
Productivity of Bentic Organisms (Order Diptera) in Cigambreng River, Tapos Village, Subdistrict Tenjoloya, Bogor Regency, West Java: Produktivitas Sekunder Organisme Bentik (Ordo Diptera) di Sungai Cigambreng, Desa Tapos, Kecamatan Tenjolaya, Kabupaten Bogor, Jawa Barat Rizky Regina Kawirian; Arif Nurcahyanto; Didit Abdillah; Grin Tommy Panggabean; Muhammad Irfan Afif; Ahyar Pulungan; Chichilia Qaila Azzahra Rahman; Mursalin Ishak; Majariana Krisanti
Tropical Fisheries Management Journal Vol 4 No 1 (2020): Jurnal Pengelolaan Perikanan Tropis
Publisher : Departement of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jppt.v4i1.30904

Abstract

Insekta memiliki biodiversitas dengan penyebaran yang luas diseluruh dunia. Sampling dilakukan sekali dalam seminggu selama bulan Oktober 2019. Ditemukan total 717 spesimen Ordo Diptera yang melingkupi dua famili di Sungai Cigambreng. Tiap famili yang diperoleh melingkupi satu jenis yakni Antocha sp. (Famili Tipulidae.) dan Krenopelopia sp. (Chironomidae). Kehadiran jenis chironomid mengindikasikan adanya beban masukan berlebihan (Polutan) ke dalam perairan sungai Cigambreng. Secara umum, kelimpahan tertinggi diperoleh pada pengamatan ke empat yakni 284 ind/m2, sedangkan kelimpahan terendah diperoleh pada pengamatan ke dua yakni 60 ind/m2. Produktivitas sekunder melingkupi P/B Rasio sebesar 3.034/bulan dengan kecepatan produksi 14.2458 (g/m2/bln) dan biomassa (4.6954 g/m2).
Secondary Productivity of Crambidae Family in Cigambreng River, Tapos Village, Bogor: Produktivitas Sekunder Famili Crambidae di Sungai Cigambreng, Desa Tapos, Bogor Arif Nurcahyanto; Ahyar Pulungan; Didit Abdillah; Muhammad Irfan Afif; Grin Tommy Panggabean; Rizky Regina Kawirian; Chichilia Qaila Azzahra Rahman; Majariana Krisanti
Tropical Fisheries Management Journal Vol 4 No 1 (2020): Jurnal Pengelolaan Perikanan Tropis
Publisher : Departement of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jppt.v4i1.30905

Abstract

Secondary productivity is the formation of biomass of heterotrophic organisms in units of time including biomass that is lost in a certain time unit. The Crambidae family is an insect that has aquatic larvae and will become an air insect after the larval phase. This species has the potential to become a pest for agriculture. The study was conducted in October 2019 for one month. The Crambidae family species found consists of two species, Petrophila sp. and Elophila sp. The abundance of Crambidae during the study ranged from 100 ind/m2 to 422 ind/m2. Secondary productivity was analyzed by the size frequency method. The secondary productivity of the Crambidae family in Cigambreng river waters for one month was 47.7915 g/m2/month, the biomass formed was 14.9669 g/m2 and the P/B ratio was 3.1931.
FOOD PREFERENCES OF EARLY JUVENILE SCALLOPED SPINY LOBSTER IN EKAS BAY, LOMBOK, INDONESIA Kawirian, Rizky Regina; Affandi, Ridwan; Mashar, Ali; Effendi, Irzal
Indonesian Aquaculture Journal Vol 18, No 1 (2023): (June, 2023)
Publisher : Center for Fisheries Research, Agency for Marine and Fisheries Research and Human Resource

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/iaj.18.1.2023.61-69

Abstract

Ekas Bay is the largest bay on the island of Lombok which is the location for catching and cultivating spiny lobsters. This research was conducted from May to July 2021 on the Scalloped spiny lobster (Panulirus homarus). This study aims to identify the types of natural foods consumed and determine the preferred types of food, as well as the early juvenile feeding time of Scalloped spiny lobster located in Ekas Bay, East Lombok Regency, West Nusa Tenggara Province (NTB). Puerulus samples were collected in the last week of May 2021, enlarged puerulus was performed in submerged cages measuring 15 cm × 15 cm × 15 cm, mesh size <3 mm, with a density of 4 puerulus/m2. The cages are placed at a location 70 m to the sea from the shoreline, at a depth of 0.5, 1.0, and 1.5 m. After reaching the juvenile phase, lobsters are collected during the new and full moon phases (06.00 am, 06.00 pm and 12.00 am, respectively) in June to July 2021. A total of 60 individual juvenile lobsters (algal phase) were analyzed for their stomach contents. The average percentage of the total Index of Relative Important (IRI) obtained for the identified taxa were bivalves (22.32%), copepods (23.64%), demosponges (24.98%), while digestibdle material was 29.06%. The electivity index data (Ei) shows that lobsters prefer bivalves over other taxa. Lobster samples taken in the morning had a stomach fullness rate of 50%, indicating active feeding at night.
KOMUNITAS ZOOPLANKTON DI PERAIRAN BUDIDAYA BENIH LOBSTER PASIR (Panulirus homarus Linnaeus, 1758) DI TELUK EKAS, KABUPATEN LOMBOK TIMUR, INDONESIA Kawirian, Rizky Regina; Affandi, Ridwan; Mashar, Ali; Effendi, Irzal
Jurnal Penelitian Perikanan Indonesia Vol 29, No 1 (2023): (Maret) 2023
Publisher : Politeknik Kelautan dan Perikanan Karawang, BRSDM KP.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jppi.29.1.2023.%p

Abstract

Lobster pasir (Panulirus homarus Linnaeus, 1758) merupakan jenis spiny lobster yang paling banyak dibudidayakan di Indonesia. Zooplankton menjadi mangsa penting dari spiny lobster dan diduga menentukan keberhasilan budidaya spiny lobster terutama pada fase puerulus dan juvenil awal. Tujuan penelitian ini adalah untuk mendata jenis, indeks keanekaragaman (H’), dan kelimpahan spesies zooplankton di Teluk Ekas pada fase bulan yang berbeda di kedalaman penempatan wadah pemeliharaan puerulus lobster. Sampel zooplankton diperoleh ketika fase bulan gelap dan terang pada bulan Juni-Juli 2021 dari tiga kedalaman penempatan puerulus (0,5 m, 1 m, 1,5 m). Karakteristik morfologi digunakan dalam identifikasi jenis zooplankton menggunakan beberapa buku identifikasi dan konfirmasi nama spesies di website World Register of Marine Species (https://www.marinespecies.org/). Total sebanyak 14 jenis zooplankton diperoleh yang terbagi ke dalam enam kelas yakni appendicularia (1), bivalvia (1), copepoda (3), malacostraca (2), oligotrichea (6), polychaeta (1). Copepoda  merupakan kelompok yang ditemukan paling melimpah dan berpotensi sebagai pakan alamiah dalam budidaya benih spiny lobster. Fase bulan gelap memiliki taksa yang lebih tinggi, dengan keanekaragaman dan kelimpahan zooplankton lebih tinggi di bulan terang pada tiap kedalaman laut pengambilan sampel.
KOMUNITAS FITOPLANKTON PADA BUDIDAYA BENIH LOBSTER PASIR DI TELUK EKAS LOMBOK TIMUR, INDONESIA Kawirian, Rizky Regina; Affandi, Ridwan; Mashar, Ali; Effendi, Irzal
Jurnal Penelitian Perikanan Indonesia Vol 29, No 1 (2023): (Maret) 2023
Publisher : Politeknik Kelautan dan Perikanan Karawang, BRSDM KP.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jppi.29.1.2023.%p

Abstract

Keberadaan fitoplankton diduga berdampak besar terhadap keberhasilan budidaya lobster terutama di fase pertumbuhan benih bening (puerulus) menjadi juvenil. Lobster pasir (Panulirus homarus) merupakan salah satu spesies spiny lobster yang paling banyak dibudidayakan di Indonesia khususnya di Teluk Ekas, Lombok.  Tujuan penelitian ini adalah untuk mendata jenis, kelimpahan, indeks keanekaragaman (H’), dan  spesies fitoplankton yang potensial sebagai harmful algal blooms (HABs), pada kedalaman penempatan wadah pemeliharaan puerulus lobster di Teluk Ekas pada fase bulan yang berbeda. Sampel fitoplankton diperoleh dari tiga kedalaman penempatan puerulus (0,5 m, 1 m, 1,5 m), ketika fase bulan gelap dan terang pada bulan Juni-Juli 2021. Hasil penelitian menunjukkan tercatat total 53 jenis fitoplankton yang terbagi ke dalam lima kelas yakni Bacillariophyceae (13), Coscinodiscophyceae (10),  Cyanophyceae (1), Dinophyceae (9), dan Mediophyceae (20). Tujuh genus fitoplankton tergolong dalam harmful species (Chaetoceros sp., Dinophysis sp., Nitzschia sp., Skeletonema sp. Trichodesmium sp., Tripos sp. dan Protoperidinium sp.). Fase bulan gelap memiliki kelimpahan fitoplankton yang lebih tinggi dibandingkan bulan terang pada tiap kedalaman laut pengambilan sampel. Fitoplankton paling berlimpah pada lapisan permukaan air laut dan menurun seiring penambahan kedalaman dengan H’ yang bervariasi dan fluktuatif. Analisis kesamaan memperlihatkan bahwa kedalaman 1 m memiliki persen kesamaan yang tinggi dengan kedalaman 1,5 m.
Co-Authors Abdillah, Didit Afif, Muhammad Irfan Ali Mashar Arif Nurcahyanto Arif Nurcahyanto Chichilia Qaila Azzahra Rahman Chichilia Qaila Azzahra Rahman Didit Abdillah Didit Abdillah Fachry Abda El Rahman Grin Tommy Panggabean Irzal Effendi Ishak, Mursalin Lalu Japa Majariana Krisanti Mursalin Ishak Noar Muda Satyawan Nurcahyanto, Arif Rahman, Chichilia Qaila Azzahra RIDWAN AFFANDI