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All Journal AGRIKAN Jurnal Ilmiah Agribisnis dan Perikanan Proceeding Simposium Nasional Kelautan dan Perikanan TRITON : Jurnal Manajemen Sumberdaya Perairan Biopendix: Jurnal Biologi, Pendidikan dan Terapan PAPALELE : Jurnal Penelitian Sosial Ekonomi Perikanan dan Kelautan Agrikan: Jurnal Agribisnis Perikanan
Yona A. Lewerissa
Jurusan Manajemen Sumberdaya Perairan Fakultas Perikanan Dan Ilmu Kelautan Universitas Pattimura
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Environmental Science

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EFISIENSI KINERJA SASI TERIPANG PASIR (Holothuria scabra) DESA TUNGU KEPULAUAN ARU Yona A. Lewerissa; Frederik W. Ayal; Yohana N. Letsoin
PAPALELE (Jurnal Penelitian Sosial Ekonomi Perikanan dan Kelautan) Vol 7 No 1 (2023): PAPALELE: Jurnal Penelitian Sosial Ekonomi Perikanan dan Kelautan
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/papalele.2023.7.1.67

Abstract

The sandfish sea cucumber, Holothuria scabra, has economic value and is considered expensive, making it a target for utilization. The sandfish sea cucumber is found in the village of Tungu, but with the implementation of sasi (a traditional system of resource management), it is expected to ensure the sustainability of the sandfish sea cucumber resources. In reality, every time the sasi period is lifted, sandfish sea cucumbers are harvested without any size limitations and there are illegal captures by fishermen from outside the Aru Islands using complete diving equipment. Given these conditions, it is suspected that the sandfish sea cucumber population may decline. Therefore, this research was conducted in August-September 2018, with the aim of assessing the performance efficiency of the sasi system for sandfish sea cucumbers in Tungu Village. Data collection was done through observation and interviews with intentionally selected respondents and analyzed descriptively using several indicators. The research results showed that the catch of sandfish sea cucumbers amounted to 2,240 kg of dried weight, with varying selling prices according to size. The analysis of performance efficiency indicated that the sasi system for sandfish sea cucumbers in Tungu Village falls into the moderate category.
Density and Attendance Frequency of Seagrass In Coastal Waters of Porto Village, Saparua Island, Central Maluku Yona A. Lewerissa
JURNAL AGRIKAN (Agribisnis Perikanan) Vol 16 No 1 (2023): Agrikan: Jurnal Agribisnis Perikanan
Publisher : Fakultas Pertanian, Universitas Muhammadiyah Maluku Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52046/agrikan.v16i1.1551

Abstract

Seagrass acts as a food source in supporting the productivity of the living creatures that lives sorrounds, rearing areas, and sediment filtering systems. The Village of Porto is one of the coastal villages that has a fairly extensive seagrass ecosystem. Seagrass, locally known as "lalamong" is located quite far from residential areas, but information about the condition of the seagrass is still lacking. So, this study aims to inventory the species of seagrass found there, analyze the density and attendance frequency and assess environmental parameters for seagrass growth. The research was conducted from January to March 2019. Seagrass data was collected using the linear quadratic transect method at the five stations and each station consisted of three transects. The results showed that seagrass beds in the research area consists of eight species of seagrass, namely Enhalus acoroides, Thalassia hemprichi, Halophila ovalis, Cymodocea rotundata, Cymodocea serrulata, Halodule uninervis, Halodule pinifolia and Syringodium isoetifolium. C. serrulata is the species with the highest density number, but the highest attendance frequency is represented by E. acoroides. S. isoetifolium is the species with the lowest density and attendance frequency. Station three has the highest seagrass density but has a low on attendance frequency. Water quality parameters (temperature and salinity) are suitable for seagrass in the coastal waters of Porto village.
Ecology Aspect of Fiddler Crab Uca spp. In the Mangrove Ecosystem of Poka Village, Inner Ambon Bay Yona A. Lewerissa; Mahriyana Hulopi
Agrikan Jurnal Agribisnis Perikanan Vol 16 No 2 (2023): Agrikan: Jurnal Agribisnis Perikanan
Publisher : Fakultas Pertanian, Universitas Muhammadiyah Maluku Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The mangrove ecosystem of inner Ambon Bay has ecological, biological, and economic functions but has become degraded, especially in the PLTD Poka area. Almost most of the mangrove vegetation in this ecosystem is experiencing drought, which is indicated by oil spills, in addition to the presence of landfills on the bottom substrate of the ecosystem. Violin crabs are one of the biota associations that make mangroves their natural habitat. The condition of the degraded PLTD Poka mangroves can affect the condition of fiddler crabs. For this reason, the study aims to invent fiddler crab species, analyze the density and frequency of occurence, and determine the ecological index of fiddler crabs in the mangrove ecosystem of PLTD Poka Inner Ambon Bay. Data collection of fiddler crabs (Uca spp.) in the PLTD Poka mangrove ecosystem in June–August 2023 using the purposive sampling method at all five stations The results of the study found four species of fiddler crabs, namely Uca mjoebergi, Uca perplexa, Uca vocans, and Uca vomeris, at five stations in the Poka mangrove ecosystem, which belong to one class, one family, and one genus. Overall, the species with the highest density was Uca perplexa, while the species with the lowest density was U. vomeris, with the highest density at station 5 and the lowest density at station 2. The highest frequency of occurence is represented by Uca perplexa, while the lowest is in the species Uca mjoebergi.
Co-Authors Degen E. Kalay Frederik W. Ayal Kalay, Degen E Latumahina, M B Mahriyana Hulopi Prulley A. Uneputty Prulley A. Uneputty Prulley Annette Uneputty Sangaji, M Sara Haumahu Tejo Sugiantoro Yohana N. Letsoin