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All Journal Torani Journal of Fisheries and Marine Science ECSOFiM (Economic and Social of Fisheries and Marine Journal) Jurnal Tropical Aquatic Sciences
Ramang, Muhammad Syahrir
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Economics, Econometrics & Finance Energy Environmental Science Physics Social Sciences

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 1 
Analysis of Heavy Metals in Shellfish, Sediment, and Waters in Seagrass beds Ecosystem in Selangan Village, Bontang City Akhir, Fatmy Yaumil; Suyatna, Iwan; Pagoray, Henny; Sukarti, Komasanah; Ramang, Muhammad Syahrir; Fitriyana, Fitriyana
Torani Journal of Fisheries and Marine Science Vol. 7 No. 1 (2023): VOLUME 7 NOMOR 1, DECEMBER 2023
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35911/torani.v7i1.27624

Abstract

Selangan Hamlet is a water area in Bontang City where community activities are very active. Bontang City is an area that has a high utilization of coastal areas such as tourism, cultivation, trade, sea transportation services, and industrial areas. The impact of the industrial area on these waters is the contamination of these waters with heavy metals which will have an impact on aquatic organisms and the surrounding community who ultiize these waters. The purpose of this study was to identify the content of heavy metals lead (Pb), copper (Cu), magnesium (Mg), iron (Fe), and mercury (Hg). This research was conducted in January-June 2023 in Bontang waters, Selangan Hamlet. Sampling involyes analyzing water quality and testing heavy metals such as Cu, Pb, Fe, Mg, and Hg. The samples to be analyzed are water, sediment, seagrass and blood clams. The results of the analysis obtained in these waters, at the four stations, namely the south, east, west and north stations. At all stations in the heavy metal test Cu, Pb, Fe, Mg and Hg heavy metal content is only found in blood clams (Anadara granosa). In water, sediment and seagrass, the values obtained are still in normal conditions.
Economic Benefits and Governance of Guiding Barrier Fishing Gear in White-Spotted Spinefoot Fish Fishing Activities (Siganus canaliculatus, Park 1797) In Bontang City Waters Kamilan, Kamilan; Ramang, Muhammad Syahrir; Susilo, Heru; Fitriyana, Fitriyana; Nurfadilah, Nurfadilah; Auliansyah, Auliansyah
ECSOFiM (Economic and Social of Fisheries and Marine Journal) Vol 11, No 1 (2023): ECSOFiM October 2023
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.ecsofim.2023.011.01.07

Abstract

Guiding barrier fishing gear has been used in recent years in the mangrove, seagrass, and coral ecosystem areas of Bontang City. In previous studies, the main target, white-spotted spinefoot fish, has depreciated and degraded as a result of overfishing. This study calculates the economic benefits and attempts to analyze the management policy of guiding barrier fishing gear to overcome the depreciation and degradation problems. To calculate the economic benefits, the fisheries production approach was used, while the policy analysis used the interpretive structural model technique. During the peak season of white-spotted spinefoot fish, the average fisherman earns up to IDR400,750 per day, with a minimum of IDR103,000 and a maximum of IDR1,904,000. The optimal fishing period is nine months, after which fishermen will stop fishing in Ramadan, August, and September. There are six guiding barrier fishing gear management policies, namely: 1) open and close systems at the installation site; 2) increase the mesh size used; 3) reduce the number; 4) moratorium on new installations; 5) limit the number of owners for each fisherman; and 6) regulate the distance between guiding barrier fishing gear. Of the six policy alternatives, the top priority is to increase the mesh size used.
Population Dynamics of Jinga Shrimp (Metapenaeus affinis) in Samboja Kuala Waters Kutai Kartanegara Regency Jahrah, Fatimah; Ramang, Muhammad Syahrir; Susilo, Heru; Susanto, Adi; Irawan, Aditya; Erwiantono , Erwiantono
Torani Journal of Fisheries and Marine Science VOLUME 6 NOMOR 2, JUNE 2023
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35911/torani.v6i2.25187

Abstract

Pink shrimp (Metapenaeus affinis) or Jinga shrimp is one of the species caught in the waters off Samboja Kuala. This catch is a valuable commodity in the market. The possibility of exploiting shrimp resources will be jeopardized in an effort to conserve, utilize, and catch high intensity shrimp. This study was conducted from September to December 2022 with the aim of determining population dynamics parameters using the frequency method from carapace length data. A mini trawl was used to collect shrimp in the waters of Samboja Kuala, Kutai Kartanegara Regency. Male and female jinga shrimp have a ratio of 1:2,43. Furthermore, for male and female shrimp, the growth rate coefficient (K) was 0,580 and 14,00, respectively, and the approximated natural length (L) was 145.82 and 160.81. Pink shrimp (Metapenaeus affinis) have natural mortality (M) of 1,113/year, mortality due to capture (F) of 0,516, and total mortality (Z) of 1,630, with exploitation value (E) of 0,316, indicating that they are still at the appropriate level. Herefore, female shrimp peaked in August at 14,6% and males peaked in July 31,81%. The Y/R capability was 0,049/year, and Emax calculated the Y/R relationship with the exploitation rate, which was 0,42.
DINAMIKA POPULASI UDANG CENDANA (Metapenaeus brevicornis) YANG TERTANGKAP PADA SIANG HARI DI PERAIRAN SAMBOJA KUALA KABUPATEN KUTAI KARTANEGARA Laroibafih, Muhammad Jazuli; Abdunnur; Ramang, Muhammad Syahrir
Jurnal Tropical Aquatic Sciences Vol. 4 No. 2 (2025): Jurnal Tropical Aquatic Sciences
Publisher : Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, Mulawarman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/fedpq104

Abstract

Samboja Kuala is one of the Kelurahan in Samboja District which is an area where most of the population works as fishermen.  There are two types of fishery activities in the Samboja Kuala area, namely capture fisheries (fishermen) and aquaculture fisheries.  Samboja kuala is a fishery production contributor area for Samboja District, with the dominant catch being shrimp.  Yellow shrimp (Metapenaeus brevicornis) is one of the catches of fishermen shrimp in Samboja Kuala Waters. This study aims to determine several parameters of population dynamics using the carapace length data frequency method. The research was conducted in Samboja Kuala waters, Kutai Kartanegara Regency, in November-December 2022.  Based on the results of the study, the sex ratio between males and females was 0,05:16,8.  The length range in male and female sex is 58,44 mm – 118,5 mm and 37,5 mm – 125,8 mm.  And the natural mortality (M) of males and females was 0.958 per year and 1.277  per year, the capture mortality (F) of males and females was -46.94 per year and 0,55 per yearthe capture mortality (F) of males and females was – 0.94 per year and 1.55 per year, the total mortality of males and females was 0.958 per year and 1.277 per year, and the exploitation rates of males and females were 0.33 and 0.50.  New additions of males occurred in November by 20,97%.   and new additions of females occurred in September by 18,67%.
Co-Authors Abdunnur Adi Susanto Aditya Irawan Akhir, Fatmy Yaumil Auliansyah, Auliansyah Erwiantono , Erwiantono Fitriyana Fitriyana, Fitriyana Henny Pagoray, Henny Heru Susilo Heru Susilo Iwan Suyatna Jahrah, Fatimah Kamilan, Kamilan Laroibafih, Muhammad Jazuli Nurfadilah Nurfadilah Sukarti, Komasanah