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Journal : Jurnal Ilmu Pertanian Indonesia

Distribusi Spasial Rajungan (Portunus pelagicus) pada Musim Timur di Perairan Pulau Lancang, Kepulauan Seribu Syamsul Bahri Agus; Nimmi Zulbainarni; Adriani Sunuddin; Tarlan Subarno; Aditya Hikmat Nugraha; Insaniah Rahimah; Andi Alamsyah; Rosdyani Rachmi; . Jihad
Jurnal Ilmu Pertanian Indonesia Vol. 21 No. 3 (2016): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1924.486 KB) | DOI: 10.18343/jipi.21.3.209

Abstract

A study was carried out to assess the present status of blue swimmer crab (Portunus pelagicus) in Lancang Island, incorporating identification of fishing ground, also measurement of environmental condition and crab biometry. Monthly catch assessment was performed on JuneSeptember 2015 at three landing bases using structured questionnaire and morphometric sampling of minimum randomly selected 30 crabs. Bathymetric survey was conducted to produce depth-contoured maps combined with certain oceanographic parameters (sea surface temperature, salinity, water clarity, total suspended solids, dissolved oxygen, and nitrate-NO3) measured at 15 sampling sites. A grid map was produced to identify key areas of crab fishing grounds, recruitment habitat, and spawning habitats. During southeast monsoon, main fishing ground was distributed in the western and southern part of Lancang Island (grid C3, C4, and D5). In general, crab yields were dominated by female (66.9%) and 43.8% of them were bearing eggs. Four size classes were determined from frequency distribution of carapace width (Class 1 = 7.0-10.6 cm; Class 2 = 10.7-14.2 cm; Class 3 = 14.3-17.8 cm; and Class 4 = 17.9-21.5 cm), with Class 2 as the most prominent catch. Referring to ontogenetic migration trait of the species, presumed recruitment habitat for blue swimmer crab in Lancang Island is located at A6, where abundant juveniles were harvested in the area with strong oceanic influence and depth range of 24-30 m. Spatial coherence on the distribution of bearing egg female with several environmental parameters (sea surface temperature, salinity, and dissolved oxygen) indicates strong estuarine influence is required for crab spawning habitat at C3 and
Keanekaragaman dan Potensi Pemanfaatan Makroalga di Pesisir Pulau Tunda Endang Sunarwati Srimariana; Mujizat Kawaroe; Dea Fauzia Lestari; Aditya Hikmat Nugraha
Jurnal Ilmu Pertanian Indonesia Vol. 25 No. 1 (2020): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (585.801 KB) | DOI: 10.18343/jipi.25.1.138

Abstract

Macroalgae is one of the marine biological resources that has a potential to be utilized further by humans. This research aims to study macroalgae diversity and utilization potency by humans in the coastal area of Tunda Island. The study was conducted at 4 stations using the belt transect method. Results of this study indicated that there were 15 species of macroalgae found that came from 3 macroalgae classes, they were chlorophyceae, phaeophyceae, and rhodophycea. Macroalgae species that are often found are Padina minor, Halimeda macroloba, and Gracilaria salicornia. The highest macroalgae diversity was found at station 3 with a value of 2.44. Based on the type of macroalgae found in the field there are several macroalgae species that can be utilized, and the lack of information causes the low macroalgae utilization by the local community. Keywords: Biodiversity, Gracilaria salicornia, Halimeda macroloba, macroalgae, Padina minor
Co-Authors . Jihad Abdul Rahman Putra Abdul Rahman Ritonga Adriani Sunuddin Afis Irawan Agung Dhamar Syakti Agus Ramli Ahmad Zahid Andi Alamsyah Andi Bakia Askara Andri Irawan Anna Kristine Sigarlaki Bimo Panji Prayogo Calvyn Fredrik Aldus Sondak Dea Fauzia Lestari Dedy Kurniawan Deni Saputra Devia Hartono Puteri Devia Hartono Puteri Dietriech Geoffrey Bengen Dony Apdillah Endang Sunarwati Srimariana Esty Kurniawati Fadhliyah Idris Febrianto, Try Hasan Eldin Adimu Hasidu, La Ode Abdul Fajar Hazrul Hazrul Herlanto Sihar Napitupulu Hidayati, Jelita Rahma I Wayan Eka Dharmawan ika Anggraeni Ilham Antariksa Tasabaramo Indra Jaya Insaniah Rahimah Iqoh Faiqoh Ita Karlina Ita Karlina Ita Karlina Ita Karlina Ita Karlina Jemi Jemi Jumsurizal Jumsurizal Juraij Juraij Khairul Hafsar Khairunnisa Khairunnisa Kristina, Kariska Lestari, Febrianti Lia Badriyah Maharani Mario Putra Suhana Mario Putra Suhana Mario Putra Suhana Mujizat Kawaroe MUJIZAT KAWAROE Mujizat Kawaroe Muslimin Muslimin Muslimin Muslimin Muta Ali Khalifa Nimmi Zulbainarni Nurhasima Nurul Dhewani Mirah Sjafrie Nurul Hati Pratiwi Sarinawaty Putra, Risandi D Putri Cahyani Putri Ramadhani Putri Restu Hertyastuti Rika Angraeni Riska Rosdyani Rachmi Said Almahdi Saputra, Ruli Sarinawaty, Pratiwi Susi Rahmawati Susi Rahmawati Susiana Susiana Susiana Susiana Susiana Syamsul Bahri Agus, Syamsul Bahri T. Ersti Yulikasari Tarlan Subarno Tengku Ersti Yulika Sari Tri Apriadi Udhi E Hernawan Udhi E Hernawan Uli Rohana Malau Wahyu Adi Wahyudin Wahyudin Yehiel Hendry Dasmasela Yeti Darmayati Yuni Sinta Pratiwi Zahra, Aminatul