cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Aan J. Wahyudi
Contact Email
aanj001@lipi.go.id
Phone
-
Journal Mail Official
mri@mail.lipi.go.id
Editorial Address
-
Location
Kota adm. jakarta selatan,
Dki jakarta
INDONESIA
Marine Research in Indonesia
Published by Lembaga Ilmu Pengetahuan Indonesia
ISSN : 02162873     EISSN : 24432008     DOI : -
Core Subject : Science,
Earth & Planetary Sciences
MARINE RESEARCH IN INDONESIA (MRI) has been published since 1956 by Indonesia's oldest marine research institute, the Research Center for Oceanography of LIPI (Indonesian Institute of Sciences). MRI focuses on physical, chemical, biological, geological oceanographic as well as coastal management studies in the Indonesian seas and the adjacent Indo-Pacific region.
Arjuna Subject : -
Articles 5 Documents
 1 
Search results for , issue " Vol 43 No 1 (2018)" : 5 Documents clear
FISSIPAROUS SEA CUCUMBER (Holothuria atra) POPULATION IN NORTH LOMBOK, INDONESIA Indriana, Lisa Fajar; Firdaus, Muhammad; Supono, -; Soffa, Fawzan Bhakti
Marine Research in Indonesia Vol 43 No 1 (2018)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1439.406 KB) | DOI: 10.14203/mri.v43i1.242

Abstract

Sea cucumbers belonged to the species of Holothuria atra are one of the holothurians that could reproduce asexually through fission particularly when their ambient environments are not optimum to reproduce sexually. The reproductive pattern of H. atra has been shown to correlate with to the condition of H. atra population as well as their habitats and environments. This study aims to investigate the asexual reproduction and fission rate of H. atra in Tanjung, North Lombok, Indonesia. We conducted surveys in February, May, July, August, September and December 2016 by applying the free collection method. A total of 1,383 individual H. atra were collected consisting of 931 intact or normal individuals, 174 anterior individuals, 261 posterior individuals and 17 uncategorized individuals. Fissioned H. atra were found in every sampling conducted in the six different months with fission rates range from 5.53 to 30.40%. This research shows that the population of H. atra in Tanjung, North Lombok, are susceptible to asexual reproduction (fission). Fission rate value of > 5% is associated with an adaptation mechanism of H. atra to maintain their population in the wild. Further investigation on the environmental conditions stimulating H. atra fission is needed to understand the reproduction and population dynamic of this species in Tanjung waters.
REPRODUCTION AND LARVAL REARING OF SANDFISH (Holothuria scabra) Sembiring, Sari Budi Moria; Wibawa, Gigih Setia; Giri, I Nyoman Adiasmara; Hutapea, Jhon Harianto; Haryanti, -
Marine Research in Indonesia Vol 43 No 1 (2018)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (405.996 KB) | DOI: 10.14203/mri.v43i1.267

Abstract

The natural stock of sea cucumber Holothuria scabra (known as sandfish) has been declining in both population and size, making it difficult to collect broodstock and juvenile sandfishes for aquaculture. This research aims to evaluate the reproduction of domesticated broodstock (F-1) and performance of the juveniles (F-2). Broodstock were reared in two rectangular concrete tanks with a dimension of 190 x 290 x 70 cm3. There were 12 individuals (7 males and 5 females) of broodstock (F-1) with total length and mean body weight of 12.0 ± 1.21 cm and 122.6 ± 32.37 g, respectively. Six broodstock were put in each tank and fed with compressed benthos at 4% biomass daily in the afternoon. During our experiment, domesticated sandfish broodstock successfully spawned twice. The first spawning (occurred in January 2017) had one female spawned that released 1,350,000 eggs with a hatching rate of 57.4%. Another broodstock spawned in April 2017 and produced 3,280,000 eggs with a hatching rate of 78.66%. The growth performance of 170 days-old juveniles (F-2) shows a total length of 5.66 ± 0.90 cm and a mean body weight of 10.08 ± 2.07 g. The survival rates are 5.19% and 8.68% for juveniles spawned in January and April, respectively. We conclude by showing that sandfish could be domesticated to produce seeds for further aquaculture development.
THE FIRST RECORD OF Holothuria (Semperothuria) Roseomaculata KERR, 2013 (Echinodermata: Holothuroidea) IN INDONESIA Setyastuti, Ana
Marine Research in Indonesia Vol 43 No 1 (2018)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (927.732 KB) | DOI: 10.14203/mri.v43i1.284

Abstract

This paper documents the first record of Holothuria (Semperothuria) roseomaculata Kerr, 2013 (Echinodermata: Holothuroidea) from Indonesia. A freshly salted specimen was collected from fishers in Sumbawa, West Nusa Tenggara, Indonesia. This species was previously recorded from Yap and Chuuk States in the Federated States of Micronesia, Papua New Guinea, Palau, Okinawa-Japan, Sabah, Borneo-Malaysia, Solomon Islands, Vanuatu and New Caledonia. Reference material has been deposited in the Reference Collection of the Research Center for Oceanography, Indonesian Institute of Sciences in Jakarta, Indonesia. 
PARTICLE SIZE CHARACTERISTICS OF RIVERBED SEDIMENTS TRANSPORTED BY TIDAL BORE ‘BONO’ IN KAMPAR ESTUARY, RIAU-INDONESIA Gemilang, Wisnu Arya; Wisha, Ulung Jantama; Rahmawan, Guntur Adhi
Marine Research in Indonesia Vol 43 No 1 (2018)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1416.394 KB) | DOI: 10.14203/mri.v43i1.293

Abstract

The presence of tidal bore in the Kampar River (locally known as ‘bono’) may influence sedimentation in the Kampar River and its estuary. Understanding sedimentation mechanisms (e.g., erosion, deposition) is important to communities along the Kampar River, which can be studied by analyzing characteristics of grain size distribution. Here, we study riverbed sediment samples collected from 17 stations using an Ekman grab sampler, accompanied by bathymetry and acoustic Doppler current profiler (ADCP) measurements. Grain size data show that the sediments are coarser upstream and gradually finer downstream. Silty sands are predominant in the upstream section of the river, sands in its river body and sandy silts in the downstream. The results indicate the influence of undular bores on grain size characteristics. We also found that the propagation of bono and Kampar River’s funnelshaped morphology cause intense scouring events of riverbed sediments. Sortation values that range between 0.332.14 suggest unstable currents that result in randomly deposited sediments. The sediment mass transfer per area is positively towards downstream at the low tidal condition. However, after the passage of the bores, the sediment mass transfer area becomes negatively towards upstream.
POLLUTION OF COASTAL AREAS OF JAKARTA BAY: WATER QUALITY AND BIOLOGICAL RESPONSES Kunzmann, Andreas; Arifin, Zainal; Baum, Gunilla
Marine Research in Indonesia Vol 43 No 1 (2018)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1509.044 KB) | DOI: 10.14203/mri.v43i1.299

Abstract

Coastal development, growing urbanization and industrialization are the most important stressors of coral reefs worldwide. Jakarta is one of the largest megacities worldwide. The coral reefs of the Thousand Islands north of Jakarta have degraded dramatically over the last 30-40 years. While large-scale gradients (i.e., regional drivers) have been extensively studied and shown shifts and declines in coral cover and composition, local drivers and their impact on spatial community composition have been neglected. The aim of our study is to investigate the spatial impact of anthropogenic stressors on local and regional scales on coral reefs north of Jakarta. Our results demonstrate that reefs in the north of the Thousand Islands are separated from the reefs in Jakarta Bay (JB), where a direct impact of Jakarta can be seen. Local anthropogenic effects rather than regional gradients have shaped a spatial patchwork of differentially degraded reefs along the nearshore islands. The main anthropogenic stressor is pollution and sedimentation rate, NO2, PO4 and chlorophyll-a explain over 80% of the variation. Surfactants and diesel-borne compounds from sewage and bilge water discharges are common pollutants. Responses to combinations of selected pollutant with elevated temperature (+3°C) were determined in the metabolic performance of the coral reef fish Siganus guttatus. During combined exposure, metabolic depression was observed. Effects of pollutants were not amplified by elevated temperature. In a study about two dominant soft coral genera, Sarcophyton spp. and Nephthea spp., on dissolved inorganic nutrients (DIN), turbidity (NTU), and sedimentation combined with measurements of photosynthetic yield and respiratory electron system (ETS) activity water quality seems to control the relative abundance and physiology of dominant soft corals in JB. In order to reverse or prevent phase shifts from hard to soft corals, there is a need to manage the water quality better. It is concluded that the intense anthropogenic pressure from local as well as regional sources is responsible for the spatial structure and health of reefs. Therefore, improved spatial management with a focus on both local and regional stressors is needed for effective marine conservation.

Page 1 of 1 | Total Record : 5

 1 

Filter by Year

2018 2018


Reset
Filter By Issues
All Issue Vol 44 No 2 (2019) Vol 44 No 2 (2019) Vol 44 No 1 (2019) Vol 44 No 1 (2019) Vol 43, No 2 (2018) Vol 43 No 2 (2018) Vol 43, No 1 (2018) Vol 43 No 1 (2018) Vol 42, No 2 (2017) Vol 42 No 2 (2017) Vol 42 No 1 (2017) Vol 42, No 1 (2017) Vol 41, No 2 (2016) Vol 41 No 2 (2016) Vol 41, No 1 (2016) Vol 41 No 1 (2016) Vol 40 No 2 (2015) Vol 40, No 2 (2015) Vol 40 No 1 (2015) Vol 40, No 1 (2015) Vol 39, No 2 (2014) Vol 39 No 2 (2014) Vol 39 No 1 (2014) Vol 39, No 1 (2014) Vol 38 No 2 (2013) Vol 38, No 2 (2013) Vol 38 No 1 (2013) Vol 38, No 1 (2013) Vol 37, No 2 (2012) Vol 37 No 2 (2012) Vol 37 No 1 (2012) Vol 37, No 1 (2012) Vol 36, No 2 (2011) Vol 36 No 2 (2011) Vol 36, No 1 (2011) Vol 36 No 1 (2011) Vol 35 No 2 (2010) Vol 35, No 2 (2010) Vol 35, No 1 (2010) Vol 35 No 1 (2010) Vol 34 No 2 (2009) Vol 34, No 2 (2009) Vol 34 No 1 (2009) Vol 34, No 1 (2009) Vol 33 No 2 (2008) Vol 33, No 2 (2008) Vol 33, No 1 (2008) Vol 33 No 1 (2008) Vol 32 No 2 (2007) Vol 32, No 2 (2007) Vol 32, No 1 (2007) Vol 32 No 1 (2007) Vol 31 (2006) Vol 31 (2006) Vol 30 (2006) Vol 30 (2006) Vol 29 (1995) Vol 29 (1995) Vol 28 (1992) Vol 28 (1992) Vol 27 (1989) Vol 27 (1989) Vol 26 (1987) Vol 26 (1987) Vol 25 (1985) Vol 25 (1985) Vol 24 (1984) Vol 24 (1984) Vol 23 (1984) Vol 23 (1984) Vol 22 (1981) Vol 22 (1981) Vol 21 (1978) Vol 21 (1978) Vol 20 (1977) Vol 20 (1977) Vol 19 (1977) Vol 19 (1977) Vol 18 (1977) Vol 18 (1977) Vol 17 (1977) Vol 17 (1977) Vol 16 (1976) Vol 16 (1976) Vol 15 (1975) Vol 15 (1975) Vol 14 (1975) Vol 14 (1975) Vol 13 (1973) Vol 13 (1973) Vol 12 (1972) Vol 12 (1972) Vol 11 (1971) Vol 11 (1971) Vol 10 (1970) Vol 10 (1970) Vol 9 (1969) Vol 9 (1969) Vol 8 (1967) Vol 8 (1967) Vol 6 (1963) Vol 6 (1963) Vol 5 (1963) Vol 5 (1963) Vol 4 (1959) Vol 3 (1957) Vol 3 (1957) Vol 2 (1956) Vol 2 (1956) Vol 1 (1956) Vol 1 (1956) More Issue