Article Per Year (5 Year)
p-Index From 2021 - 2026
0
P-Index
This Author published in this journals
All Journal BERITA BIOLOGI Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal
Rianta Pratiwi
Pusat Penelitian Oseanografi-LIPI
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
KEANEKARAGAMAN KOMUNITAS KRUSTASEA DI KEPULAUAN MATASIRI KALIMANTAN SELATAN Rianta Pratiwi; Nirmalasari Idha Wijaya
BERITA BIOLOGI Vol 12, No 1 (2013)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v12i1.525

Abstract

Studies on the community diversity of crustaceans have been conducted in the waters of Matasiri Islands, South Kalimantan, from 19th November to 1st December 2010. This research was conducted to determine the density, diversity and the presence of crustacean fauna in the waters of South Kalimantan, especially in the Matasiri Islands. Samples were collected using trawl gear operated by KR (Research Ship) BarunaJaya VIII in four Stations and three Stations of free collecting along the islands. Free sampling was conducted along the beach and the reef edge by breaking live and dead rocks, and digging sand and mud in the mangrove or using hand net around the beach of Matasiri Islands. Collection is also done using the gillnet gear which is installed in shallow water during high tides about 4 hours.The samples were collected during low tide. The results obtained were 1882 individuals covering 86 species and 19 families. The diversity index ranges between 0.97 (the lowest at Station 3 of free collecting) and 3.74 (the highest in Station 3 of trawl). While the similarity index ranged from 0.36 (the lowest in Station 1 of trawl) to 0.97 (the highest in Station 3 of free collecting). Penaeidae prawn has the highest density in each observed station. Portunidae crab has the second highest density. South Kalimantan waters especially Matasiri Islands is still in good condition for crustacean life.
Kepiting Brachyura Pulau Tikus, Kepulauan Seribu Rianta Pratiwi
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 36, No 2 (2019)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2019.36.2.839

Abstract

Penelitian ini bertujuan untuk mengetahui keanekaragaman kepiting dengan metode transek kuadrat. Penelitian dilaksanakan dari bulan Maret hingga Juni 2014 di Pulau Tikus, gugusan Pulau Pari, Kepulauan Seribu. Metode penelitian dengan transek kuadrat yaitu mewakili bagian barat (T1 & T2), utara (T3 & T4), timur (T5 & T6) dan selatan (T7 & T8) Pulau Tikus. Hasil penelitian terdapat 34 spesies brachyura dengan total 11 famili kepiting, yaitu Portunidae, Majidae, Galenidae, Dromiidae, Calappidae, Ocypodidae, Grapsidae, Porcellanidae, Macrophthalmidae, Xanthidae dan Pilumnidae. Nilai indeks keanekaragaman kepiting tertinggi ditemui di bagian timur (H’=2,609), sedangkan nilai indeks dominansi tertinggi berada di bagian selatan (C=0,117). Nilai indeks kemerataan Pielou tertinggi berada di bagian utara (J=0,923). Variasi tipe substrat pada ekosistem merupakan faktor yang mempengaruhi keanekaragaman kepiting. Keseluruhan perairan Pulau Tikus masih memiliki keanekaragaman kepiting yang tinggi dan didominansi oleh kepiting dari famili Xanthidae.
Keanekaragaman dan Potensi Lobster (Malacostraca: Palinuridae) di Pantai Pameungpeuk, Garut Selatan, Jawa Barat Rianta Pratiwi
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 35, No 1 (2018)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2018.35.1.524

Abstract

Coral shrimp (Panulirus spp.) or known as lobster is a potential fishery commodity and economic value. The demand for domestic and export market continues to increase both as local consumption and export. Indonesia is the largest lobster fishery producer in almost all Indonesian waters, from the west coast of Sumatra to the east coast Jayapura, one of which is Pameungpeuk beach, South Garut, West Java. As a result of increasing demand, fishermen try to catch as many lobsters and the impact of lobster prices also in creases and whereas fishermen continuously take it from nature. This study was conducted to determine the diversity and potential of lobster species especially living in high wavy waters along the southern coast of Garut (Pamengpeuk), West Java.The results of observation are only three types of crayfish, namely: a. Panulirus homarus (green lobster sand); b. Panulirus longipes (lobster flower/ red lobster) and Panulirus versicolor (green lobster/bamboo); is most commonly found in the area of south Garut, Pameungpeuk beach with high and strong waves. The percentage of female P longipes species (42.88%) was higher compared to male P. homarus (40%) and ovigerous female of P. versicolor (37.14%). While the sexual ratio between P. homarus (1:2.0:2.0); P. longipes (1:1.2:1.0) and P. versicolor: 1:1.2:1.2  which statistically showed significantly different p <0.05.
Co-Authors Nirmalasari Idha Wijaya