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All Journal Maspari Journal JOURNAL OF COASTAL DEVELOPMENT Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology International Journal of Science and Engineering (IJSE) Bioma : Berkala Ilmiah Biologi Jurnal Ilmu Lingkungan Management of Aquatic Resources Journal (Maquares) OSEATEK Maspari Journal Squalen Bulletin of Marine and Fisheries Postharvest and Biotechnology COJ (Coastal and Ocean Journal)
Boedi Hendrarto
Program Studi Manajemen Sumberdaya Perairan Jurusan Perikanan Fakultas Perikanan Dan Ilmu Kelautan Universitas Diponegoro Jl. Prof. Soedharto, SH Semarang
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Education Engineering Environmental Science Immunology & microbiology Mathematics Social Sciences Other

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Journal : JOURNAL OF COASTAL DEVELOPMENT

 1 
BIODIVERSITY OF BENTHIC DIATOM AND PRIMARY PRODUCTIVITY OF BENTHIC MICRO-FLORA IN MANGROVE FORESTS ON CENTRAL JAVA Ign Boedi Hendrarto; Mustofa Nitisuparjo
JOURNAL OF COASTAL DEVELOPMENT Vol 14, No 2 (2011): Volume 14, Number. 2, Year 2011
Publisher : JOURNAL OF COASTAL DEVELOPMENT

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Abstract

A study to determine biodiversity related to ecological function of secondary mangrove forests at central Java had been carried out in three different locations viz. Rembang, Demak and Pemalang coasts.  Location of sampling was selected systematically in three levels of inundation within both lower and higher densities of mangrove. Sediment samples were collected randomly with four replications.  A lens tissue trapping method was applied to collect living benthic diatoms.  Primary productivity was measured in-situ in the locations as production of carbon per unit area per unit time. It was determined by dissolved oxygen content measured by the bell jar method.  Data were then analyzed using a biodiversity index (Shannon-Wiener index), ANOVA, regression and cluster multivariate analysis for b biodiversity. Totally, 86 benthic diatom species had been found and the benthic diatom community assemblage was dominated by Amphora coffeaeformis, Diploneis crabro, Diploneis smithi, Navicula elliptica, Pleurosigma sp., Stauropsis majuscula and Surirella gemma.  Benthic diatom abundance was 8.6750 x 104 to 18.9626 x 104 cell/m2, where the highest was found in Demak and the lowest was in Pemalang.  Abundance of the diatom does not always have significant relation (P > 0.05) to both inundation levels and mangrove density; however, this was more depended on location.  The assemblage of benthic diatom community was more similar in Rembang and Pemalang compared to that in Demak, however the a biodiversity index tended to be higher in the lower mangrove density.  The benthic micro-flora primary productivity was 120 to 342 mg C/m2/hour and had no significant relation (P > 0.05) to abundance of benthic diatom.  It was revealed that the optimum density of mangrove to have the highest benthic micro-flora primary productivity was between 8000 to 10000 trees/ha.      
THE GROWTH ANALYSIS OF Stichopus vastus (Echinodermata: Stichopodidae) IN KARIMUNJAWA WATERS Bambang Sulardiono; Slamet Budi Prayitno; Ign Boedi Hendrarto
JOURNAL OF COASTAL DEVELOPMENT Vol 15, No 3 (2012): Volume 15, Number 3, Year 2012
Publisher : JOURNAL OF COASTAL DEVELOPMENT

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Abstract

Stichopus vastus is one of sea cucumber resources utilize which has commercial economic value, locally known  as “gametes”. Because this species is continuously exploited, while the nature of life has not been known, one of them especially its growth.  Aspect of growth is an important parameter which is used as a basis for evaluating these resources, hence this resource is well managed and can be utilized in a sustainable manner. The study aims to: (1) estimates the growth characteristics mortality rate, recruitment and potential use of sea cucumber of  S.  vastus in Karimunjawa. The study is expected to give beneficial to the species of sea cucumber resource management strategy at  Karimunjawa waters, Jepara. The analysis of the growth parameters of S. vastus obtained values ​​of growth coeficient (K) of 0.55 year-1 and length infinity L ∞ value of 315.80 mm. Therefore the obtained values ​​of K tend to be close to zero value, it indicates the nature of growth tends to slow and with a relatively long life.  Life span of  S. vastus is 5.41 years, which can achieve body lengths of 283.06 to 296.91 mm, and the monthly growth rate ranged from 9.0 to 12.37 mm. The results of the analysis of mortality showed that S. vastus has value of total mortality (Z) of 0.98,  natural mortality (M) of 0.298, and catch mortality (F) of 0.682, with the rate of exploitation (E) of 0.6963. This suggests that the rate of exploitation is above the threshold standard set by the Government of 0.5 (BRKP, 2004). The analysis of the S. vastus the recruitment showed that the higest percentage recruit occurred in May-June is 17.16 - 18.33%. This is presumably due to a population increase of the spawning process in those months, although the value of the addition is not very significant.   It is suggested the need for regulations regarding: (a) the catchment season which is based on the tendency of the reproductive patterns of S. vastus, in Karimujawa, (b) restrictions on the size of the catch, (c) catch quotas, (d) the methods that are environmentally friendly catch, (e) permits the ship / boat used to catch sea cucumbers business. To support the success of regulation, it is necessary to strengthen community institutions through the management of sea cucumber resource-based society, with the Co-management approach.
Co-Authors - Ruswahyuni - Supriharyono Achmad Fama agung Suryanto Agus Hadiyarto Agus Hartoko Agus Wahyudi Alfian Zulfikar, Alfian Aly Handartoputra Amalia Nur Istigfarin, Amalia Nur Angela Merici Dwi Widiyanti Anhar Solichin Anugrah Dwi Fahreza Ari Wibowo Arini Indah Lestari, Arini Indah Asrika Yupina Sembiring Ayu Putri Kusumaningrum, Ayu Putri Bambang Sulardiono Bambang Sulardiono Christian B.C. Churun Ain D Diarto Dewi, Hilda Kumala Dyah Pertiwi Jaya Wardhani, Dyah Pertiwi Jaya Egar Dwi Prayudha Ekowati Chasanah Fadhilah Maharani Fajrin, Fadhilah Maharani Fandi Maulana Farah Nabila Noersativa Fentika Rahma Mentari Frida Purwanti Haeruddin Haeruddin Halimatus Sa’diyah Hapsari, Rania Widia Hedi Indra Januar Hida Rizki Aini, Hida Rizki Iin Rahmawati Ika Chrisyariati Inchan Faolo Silaen Irwan Ramadhan Ritonga Jafron W. Hidayat Jafron Wasiq Hidayat Kismartini Kismartini Lusiana Rahmawati Lutfiana Sari Indah Marina Alin Rahajeng Max Rudolf Muskananfola Max Rudolf Muskanonfola Melina Setya Ayuningsih Mochammad Yenny Muhammad Saiful Adip Muhammad Yusuf Muhar Azhari Mulyaningsih, Dwi Munafi’ah, Ayu Mustofa Niti Supardjo Mustofa Nitisupadjo Mustofa Nitisupardjo Mustofa Nitisuparjo Nabila Ghassani Adani Niniek Widyorini Novi Andriani, Novi Nugraha, Muhammad Rizky Nurul Fhitriany Putri Nurul Khaqiqoh Ocky Karna Radjasa Okta Viana Sari Prijadi Soedarsono Pujiono Wahyu Purnomo Purnomo, Pudjiono Wahyu Putri March F Hia Rifky Annisa Fatmawati, Rifky Annisa Rimty Mayuftia Rina Mariana Rizki Pramuditya Kurniatama, Rizki Pramuditya Roswita Larosa S. Supriharyono Sandra Devita Kusumaningsari, Sandra Devita Sinaga, Riris Rezeki Siti Rudiyanti slamet budi prayitno Sri Suryoko Sri Wahyuni Subiyanto Subiyanto Supriharyono ,, Supriharyono Supriharyono Supriharyono Suradi Wijaya Saputra Suryanti - Sutrisno Anggoro Suyono ,, Suyono Suyono Suyono Tarigan, Novia Putri Tri Kusuma Oktaviana Untung Ismoyo