Garuda - Garba Rujukan Digital

Exploring the trophic interactions in the coral reef ecosystem at the coastal area of Ternate Island using Ecopath model Rumagia, Faizal; Ahmad, Aditiyawan; Kadir, Irwan Abdul
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan 2025: Special Issue ICFM
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.0.0.46903

The Ecopath mass-balanced model was employed to elucidate the trophic structure and interaction, energy flow, and ecosystem properties of the coral reef ecosystem in the coastal area of Ternate Island. The model comprised 30 functional ecological groups, of which 29 were living groups and one was a group of detritus. The trophic structure of the model exhibited a range of values, from 1.0 for primary producers and detritus to 3.81 for the top predator. The resulting trophic aggregation comprises six effective trophic groups, with the largest energy flow originating from zooplankton and benthic organisms in trophic level II. The transfer efficiency is predominantly derived from detritus organisms, in comparison to that derived from phytoplankton as the primary producer. The ratio of total primary production per total respiration indicated that the coral reef ecosystem was at a developmental stage. The coral reef ecosystem exhibited a low ecological efficiency for the fishery gross efficiency. Mixed trophic impact analysis indicated that predators exerted a negative impact on their prey, whereas planktonic organisms exerted a positive impact on the majority of fish functional groups. The comparison of the model with other studies provided information that could inform the development of appropriate fisheries management guidelines for this area based on ecosystem properties.Keywords:Coral reef ecosystemEcopathEcosystem propertiesTernate IslandTrophic interaction

Exploring the trophic interactions in the coral reef ecosystem at the coastal area of Ternate Island using Ecopath model Rumagia, Faizal; Ahmad, Aditiyawan; Kadir, Irwan Abdul
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan 2025: Special Issue ICFM
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.0.0.46903

The Ecopath mass-balanced model was employed to elucidate the trophic structure and interaction, energy flow, and ecosystem properties of the coral reef ecosystem in the coastal area of Ternate Island. The model comprised 30 functional ecological groups, of which 29 were living groups and one was a group of detritus. The trophic structure of the model exhibited a range of values, from 1.0 for primary producers and detritus to 3.81 for the top predator. The resulting trophic aggregation comprises six effective trophic groups, with the largest energy flow originating from zooplankton and benthic organisms in trophic level II. The transfer efficiency is predominantly derived from detritus organisms, in comparison to that derived from phytoplankton as the primary producer. The ratio of total primary production per total respiration indicated that the coral reef ecosystem was at a developmental stage. The coral reef ecosystem exhibited a low ecological efficiency for the fishery gross efficiency. Mixed trophic impact analysis indicated that predators exerted a negative impact on their prey, whereas planktonic organisms exerted a positive impact on the majority of fish functional groups. The comparison of the model with other studies provided information that could inform the development of appropriate fisheries management guidelines for this area based on ecosystem properties.Keywords:Coral reef ecosystemEcopathEcosystem propertiesTernate IslandTrophic interaction

Fishing Capacity Efficiency of Mini Purse Seine in Ternate City Salim, Fajria Dewi; Damsiki, Nuraini A; Ahmad, Aditiyawan; Abubakar, Yuyun; Fadel, Ariyati A
Jurnal Biologi Tropis Vol. 24 No. 4 (2024): Oktober - Desember
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i4.7462

The level of fishing efficiency and capacity of a fishery provides a useful instrument for policymakers to design management and control the response of the fishing industry to management. For this reason, fishing efficiency and capacity measures must be applied appropriately depending on a particular fishery's management and specific characteristics (Espino et al., 2006). This study aims to determine the efficiency of fishing capacity in mini purse seine in Ternate City. This research uses a descriptive quantitative method, DEA (Data Envelopment Analysis), to measure the technical efficiency of production (fishing capacity)—efficiency analysis using Microsoft Excel supported by frontier add-ins. The mini purse seine units that became Decision Making Units (DMU) were 20 DMUs consisting of 11 DMUs in Rua village, and 9 DMUs in Moti sub-district, Ternate City. Load capacity, fishing trip, fuel volume, number of crew members, and engine capacity are input factors in this study, while average production volume is the output factor. The results showed that 13 mini purse seine business units (13 DMUs) in Ternate City were inefficient (<1) and 7 mini purse seine business units were efficient. Most of the mini purse seine fishing capacity in Ternate City showed an inefficient condition (<1). The inefficient condition is caused by the excessive use of inputs (fishing capacity). Potential improvements can be made by reducing the use of inputs to obtain maximum output. Trip catch, fuel volume, and number of crew are production inputs that can be improved for optimum output in mini purse seine fishing in Ternate City. This research contributes to understanding best practices in using mini purse seines while supporting efforts to achieve economic sustainability in the capture fisheries sector in Ternate City.

Pemberdayaan Masyarakat Melalui Pelatihan Ecoprint Daun Mangrove (Sonneratia alba) Dengan Teknik Pounding Di Pulau Maitara Kota Tidore Kepulauan Abubakar, Salim; Aris, Muhammad; Subur, Riyadi; Iksan, Kusdi Hi; Wahidin, Nurhalis; Irham; Ahmad, Aditiyawan; Najamuddin; Achmad, M. Janib; Muksin, Darmiyati; Susanto, Adi Noman
Jurnal Pengabdian Magister Pendidikan IPA Vol 7 No 3 (2024): Juli - September
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v7i3.9184

Mangrove plants can be used as natural dyes to replace synthetic dyes. One part of the mangrove plant that has the potential to be used is the leaves. Sonneratia sp is a type of mangrove that can be used as a raw material in making ecoprints, where the results of this type of ecoprint leave a light green trail with an even shape. All parts of the mangrove plant can be used as a coloring material for ecoprint products with the pounding method. The objectives of the PKM activity are: partners can learn about the benefits of Sonneratia alba mangrove leaves as raw materials for ecoprints, empowering the community in increasing innovative creativity through making ecoprints, applying Sonneratia alba mangrove leaf ecoprint making technology with the pounding method and getting quality ecoprint product motifs. The activity method carried out in the ecoprint making training is carried out through several stages, namely field surveys/observations, counseling and training. The results of the PKM provide knowledge about the benefits of Sonneratia alba mangrove leaves as raw materials for making ecoprint products and increasing creativity in making ecoprints with the pounding technique. This ecoprint training activity is not only for education or knowledge, but can also help improve the economy, this training activity gets positive value and support from the Maitara Island community, especially for the managers of the Ngusulenge mangrove tourism object, Maitara Tengah Village. This activity is a trigger to be more enthusiastic about working to utilize natural resources, especially mangrove forests. Ecoprint products are expected to be one of the typical souvenirs of Maitara Island and the ecoprint products produced are bags, tablecloths, handkerchiefs and headscarves.

Title

Found 14 Documents
Search

Abstract

Abstract

Abstract

Abstract

Title Search

Found 14 Documents Search

Abstract

Abstract

Abstract

Abstract

Title

Found 14 Documents
Search