scholarly journals HUBUNGAN SUBSTRAT DOMINAN DENGAN KELIMPAHAN GASTROPODA PADA HUTAN MANGROVE KULONPROGO, YOGYAKARTA (The Relation of dominant substrate to Gastropods Abundance in the Mangrove Forest of Kulonprogo, Yogyakarta)

Author(s):  
Rendra Rini Rismatul Chusna ◽  
Siti Rudiyanti ◽  
Suryanti Suryanti

 Substrat mangrove terdiri atas fraksi pasir (sand), lumpur (silt), dan liat (clay). Gastropoda adalah kelompok hewan dari filum moluska yang hidup di jenis substrat dari kasar ke halus. Kelimpahan gastropoda dipengaruhi oleh substrat dasar yang merupakan habitat dari gastropoda, serta kandungan nutrien yang berbeda pada tiap fraksi akan mempengaruhi kelimpahan Gastropoda yang berada di dalamnya. Oleh karena itu, perlu dilakukan penelitian mengenai hubungan substrat dengan kelimpahan Gastropoda, karena Gastropoda salah satu faktor penting untuk menjaga keseimbangan ekologi pesisir khususnya ekositem mangrove. Penelitian  dilakukan di Hutan Mangrove Kulonprogo Yogyakarta bertujuan untuk mengetahui tipe substrat, kelimpahan Gastropoda dan hubungan kedua variabel tersebut. Penelitian  dilakukan pada bulan April sampai dengan  Mei 2017. Metode yang digunakan adalah metode deskriptif yaitu metode penelitian yang memberikan gambaran secara sistematis, faktual, akurat mengenai faktor-faktor dan sifat-sifat dari suatu daerah atau populasi. Metode pengambilan sampel substrat dan Gastropoda menggunakan metode Purposive Sampling Method pada 3 stasiun berbeda yaitu stasiun I pada bagian dekat pemukiman penduduk, stasiun II pada bagian dekat tambak, dan stasiun III pada bagian muara sungai. Hasil penelitian menunjukkan jenis substrat pada tiap stasiun adalah lempung dan lempung berdebu yang didominasi oleh fraksi lumpur (silt) dan pasir (sand). Jenis Gastropoda yang didapatkan berasal dari genus Littoraria, Natica, Faunus, Cerithium, Neritina, Polinices, Conus, Telescopium, dan Nerita. Meningkatnya prosentase fraksi pasir (sand) dan liat (clay) akan diikuti oleh meningkatnya kelimpahan Gastropoda, sedangkan untuk fraksi lumpur (silt) akan sebaliknya yaitu meningkatnya fraksi lumpur akan diikuti oleh menurunnya kelimpahan Gastropoda. Kata kunci: Tipe Substrat, Gastropoda, Mangrove, Kulonprogo  Mangrove substrates formed by sands, silts, and clays. Gastropods is a group of animals of the phylum of mollusks lives on the type of substrate from rough to smooth. Gastropod abundance is affected by substrate which habitat of gastropods and nutrients influencing the distribution of gastropods. Therefore, it needs a deeper research about the correlation of substrate and the amount of gastropods , because gastropods are the importants factor of mangrove ecosystem. The research helds in Kulonprogo Mangrove Forest, Yogyakarta, and the goals are to know the type of substrate, the amount of gastropods, and the correlation among them. This research held on April – Mei 2017. This research use descriptivemethod wich research method that provide a systematic, factual, accurate description of the factors and quality an area or population. The method on sampling sediments and gastropods is purposive sampling in 3 station. Station 1 near the settlement, station 2 near ponds, station 3 on the estuary. The results of this research shows that the sediments on every station are clay and dusty clay, which is dominated by silt,and sand fraction. The gastropods that obtained are Littoraria, Natica, Faunus, Cerithium, Neritina, Polinices, Conus, Telescopium, and Nerita. The percentage increasing on sands and clays fraction would be more gastropods. Otherwise on silts fraction.   

2018 ◽  
Vol 5 (1) ◽  
pp. 34
Author(s):  
Hirzan Riyandi ◽  
Indra Junaidi Zakaria ◽  
Izmiarti Izmiarti

Currently, there are a lot of activities in Sirandah Island, such as tourism activities and deforestation to support the activities. Mangrove forest distruction makes a useable area might have negative effect to mangrove ecosystem itself or mollusc community. This research was conducted on mangrove roots area from February until October 2016. The aim of this research is to know the diversity of Gastropods on the roots of the mangrove. This research was conducted using survey method and purposive sampling method to collecting data. We recorded 8 genera of Gastropods belong to 8 families, named Cerithium, Conus, Ellobium, Littorina, Melongena, Nerita, Cymatium and Turbo. The highest abundance was found in the genus of  Littorina with 59.33 individuals/tree. Based on location, abundance ranged from 4.33-60.33 individuals/tree with the highest abundance on mangrove roots of Barringtonia asiatica. Diversity indices of Gastropods on mangrove roots in Sirandah Island ranged from 0.77 to 1.42 which is relative low range.


2019 ◽  
Vol 8 (1) ◽  
pp. 94-106
Author(s):  
Yonanda Alodea Christy ◽  
Wilis Ari Setyati ◽  
Rudhi Pribadi

Ekosistem hutan mangrove merupakan ekosistem yang berada di kawasan pesisir yang memiliki fungsi fisik, fungsi ekologi dan fungsi ekonomi. Dampak kerusakan ekosistem hutan mangrove dapat dipulihkan dengan adanya kegiatan rehabilitasi dan konservasi di kawasan hutan mangrove. Pemanfaatan nilai ekonomi dari ekosistem hutan mangrove memerlukan perhitungan valuasi ekonomi guna melihat aktivitas ekonomi yang ada pada ekosistem hutan mangrove. Tujuan penelitian ini yaitu untuk menghitung nilai total ekonomi di ekosistem hutan mangrove dan merekomendasikan strategi pengembangan dan pengelolaan kawasan ekosistem mangrove di Desa Kaliwlingi dan Desa Sawojajar, Kabupaten Brebes, Jawa Tengah. Metode penelitian yang digunakan adalah metode deskriptif dan eksploratif. Penentuan lokasi penelitian dilakukan dengan metode purposive sampling. Sampel penelitian yang diambil adalah masyarakat yang mempunyai mata pencaharian berkaitan dengan keberadaan ekosistem hutan mangrove secara langsung dan tidak langsung. Berdasarkan hasil penelitian menunjukan nilai total ekonomi ekosistem hutan mangrove di Desa Kaliwlingi adalah sebesar Rp 12.912.098.100 yang didapatkan dari total use value sebesar Rp 9.927.638.100 dan total non use value sebesar Rp 2.984.460.000. Nilai total ekonomi di Desa Sawojajar adalah sebesar Rp 5.519.784.145 dengan jumlah nilai use value sebesar Rp 3.670.377.145 dan nilai non use value sebesar Rp 1.849.407.000. Mangrove forest ecosystem are the ecosystem that is located in coastal environment that have a physical function, ecological function and economic function. The effect of damaged can be heal if there is a rehabilitation and conservation in mangrove ecosystem. The value of economic from mangrove ecosystem needs a calculation of valuation to look up the economic activity in mangrove forest ecocsystem. The aim of the research are calculate the economic total value of mangrove forest ecosystem and recommend a developing and managing strategy of mangrove ecosystem at Kaliwlingi Village and Sawojajar village. The method of the research is use descriptive and explorative method. The location of the research conducted by purposive sampling method. The sample of the study is the residents related to the existence of the mangrove ecosystem directly and indirectly. Based on the results of the research showed the total economic of mangrove forest ecosystem in Kaliwlingi Village is Rp 12.912.098.100 that comes from the total amount of use value Rp 9.927.638.100 and non use value Rp 2.984.460.000. The total economic value in Sawojajar village is Rp 5.519.784.145 that comes from the total amount of use value Rp 3.670.377.145 and non use value Rp 1.849.407.000.


2020 ◽  
Vol 5 (2) ◽  
pp. 66-71
Author(s):  
Moch. Chasan Basri ◽  
Hari Santoso ◽  
Saimul Laili

  Mangrove forests are the one of the coastal ecosystems; especially the northern coast and many are founded in the surrounding fish ecosystems. That organism is the one of the fauna which mangrove ecosystem constituent. The aim of this study was to determine the density and abundance of the population of Gelodok fish at mangrove areas in Penunggul Village, Nguling District. This study used a purposive sampling method from three stations and each station has three plots and three replications in each plot. The results showed that the density of frog fish in the mangrove forest area of ​​Nguling village at station 1 was 3 as well as at station 2 and 3 respectively 2 and 1. At station 1 there were three species, namely Baleopthalmus boddarti, Periopthalmus dipus, Periophthalmus Gracilis, station 2, there were two species; Baleopthalmus boddarti, Periophthalmus Gracilis, and station 3 there were three species namely Baleopthalmus boddarti, Periopthalmodon schlosseri, Periopthalmus dipus. The differences in the results of the study, environmental conditions and abiotic factors influence the density of fish in the mangrove area and at the station 1 the density is highe. Keywords: Gelodok fish, mangrove forest, population ABSTRAK Hutan mangrove merupakan salah satu ekosistem daerah pantai terutama pantai utara dan banyak di temui ikan Gelodok di sekitar ekositem ini. Organisme tersebut merupakan salah satu fauna penyusun ekositem mangrove. Tujuan penelitian ini untuk mengetahui kepadatan dan kemelimpahan populasi ikan Gelodok kawasan mangrove desa Penunggul Kecamatan Nguling. Penelitian ini menggunakan metode purposive sampling dari tiga stasiun dan setiap stasiun terdapat tiga plot dengan ulangan tiga kali dalam setiap plot. Hasil penelitian menunjukkan bahwa kepadatan ikan gelodok di kawasan hutan mangrove desa Nguling rata-rata pada stasiun 1 adalah 3, di satsiun 2; 2 dan 3; 1. Pada stasiun 1 terdapat tiga spesies yaitu Baleopthalmus boddarti, Periopthalmus dipus, Periophthalmus Gracilis , stasiun 2 terdapat dua spesies yaitu Baleopthalmus boddarti, Periophthalmus Gracilis dan stasiun 3 terdapat tiga spesies yaitu Baleopthalmus boddarti, Periopthalmodon schlosseri, Periopthalmus dipus. Perbedaan hasil penelitian, kondisi lingkungan dan faktor abiotik mempengaruhi kepadatan ikan Gelodok di kawasan mangrove, sehingga pada stasiun 1 diperoleh kepadatan  lebih tinggi. Kata kunci: ikan Gelodok, hutan mangrove, kepadatan populasi    


2021 ◽  
Vol 4 (2) ◽  
pp. 109-125
Author(s):  
Lilis Karlina

This study aims to empirically prove the effect of profitability, liquidity, leverage and intensity of fixed assets on tax aggressiveness (Empirical study on mining companies listed on the Indonesia Stock Exchange for the period 2012-2016). In this study there were a population of 46 mining companies listed on the Indonesia Stock Exchange for the period 2012-2016. The research method used in this study was quantitative. Through purposive sampling method, researchers obtained a sample of 12 companies listed on the Indonesia Stock Exchange for the period 2012-2016. The model in this study is panel regression using the Eviews 8 application. The data analysis technique in this study uses multiple linear analysis. The results of this study indicate that the profitability, liquidity and intensity of fixed assets have no significant effect on tax aggressiveness, while the leverage factor has a significant effect on tax aggressiveness. Profitability, liquidity, leverage and intensity of fixed assets together have a significant effect on tax aggressiveness. Abstrak Penelitian ini bertujuan untuk membuktikan secara empiris pengaruh profitabilitas, likuiditas, leverage dan intensitas aset tetap terhadap agresivitas pajak (Studi empiris pada perusahaan pertambangan yang terdaftar di Bursa Efek Indonesia periode 2012-2016). Populasi yang digunakan dalam penelitian ini sebanyak 46 perusahaan pertambangan yang terdaftar di Bursa Efek Indonesia periode 2012-2016. Metode penelitian yang digunakan yaitu kuantitatif, yakni melalui metode purposive sampling dengan sampel 12 perusahaan terdaftar di Bursa Efek Indonesia periode 2012-2016. Model dalam penelitian ini yaitu regresi panel dengan menggunakan aplikasi Eviews 8. Teknik analisis data yang digunakan dalam penelitian ini menggunakan analisis linear berganda. Hasilnya menunjukkan bahwa faktor profitabilitas, likuiditas dan intensitas asset tetap berpengaruh tidak signifikan terhadap agresivitas pajak. Sedangkan faktor leverage mempengaruhi secara signifikan terhadap agresivitas pajak. Dengan demikian, profitabilitas, likuiditas, leverage dan intensitas asset tetap secara bersama-sama berpengaruh signifikan terhadap agresivitas pajak. Kata Kunci: Profitabilitas, Likuiditas, Leverage, Intensitas, Agresivitas Pajak


2020 ◽  
Vol 8 (2) ◽  
Author(s):  
Sapto Prayoga ◽  
Burhanuddin Burhanuddin ◽  
Evy Wardenaar

Mangrove Forest has a role for the life of fauna as a source of feed and shelter for honeybees. Honeybees need feed to maintain their survival in nature, so that the availability of the feed generated by flowers in the form of nectar and pollen gives the ability of bees to breed with maximum. This research aims to obtain the type of mangrove plants and pollen, and its potential in Surya Perdana Mandiri Mangrove Forest area. The research method used is a survey method with the example tile determination Purposive Sampling. There are 10 sample compartments of 20 x 20 meters in 2 research lines. Based on the results of the research is known that there are 22 types of mangrove plants, based on observations, 13 of which are the source of honey bee feed, and based on the study of literatures there are 18 The potential feed bees at the highest tree level on the Api-api putih (Avicemia Marina) with an INP value of 82.17% and the smallest value Ceriop decandra 17.50% while at the highest INP stake level of Rhizopora stylosa 76.08% with flowering 83.44% while the smallest INP Ceriop decandra 22.63% with flowering 36.36%. In the area of Mangrove Forest Setapuk Large types of honey bee feed plant available throughout the year, although in quantity varies from month to monthKeywords: bee feed, mangrove, potential, Setapuk Besar


Jurnal CMES ◽  
2021 ◽  
Vol 14 (1) ◽  
pp. 47
Author(s):  
Khabib Akbar Maulana ◽  
Moh Masrukhi

<p>This research explains the categories and syntactic roles of Arabic in the book <em>Nashâ? Iħul-ʕIbâd</em> by Syekh Nawawi Al-Bantani based on the theory of roles and references grammar. This research is a descriptive qualitative with a purposive sampling method of presenting data that is separated from 112 data. The research method used in this study is the Agih method with basic techniques for direct elements using advanced techniques in the form of markup reading techniques on lingual element in Arabic grammar. The theory for determining the accusative adjunct markers of Arabic used is Valin's (1993) role and reference grammar theory using Kroeger's (2005) definition to look for core and peripheral elements in sentences. This research has found that the word categories of accusative adjunct can be the noun 'ism', the determiner 'muhaddad', the adjective 'naʕt', the adverb 'dharf', and the negation 'nafi', while the phrase category is the nominal phrase 'al-ʕibarah. al-ismiyyah ', the adverbial phrase 'al-ʕibarah adh-dharfiyyah ', and the adjective phrase' al-ʕibarah an-naʕʈiyyah '. In terms of the role of grammar syntax role and reference, adjunct can have any function as a clause modifier with evidential functions, as a core modifier with a function of manner, place, location, cause, and quantity, and also as a nucleus modifier with a affirmating function.</p>


2020 ◽  
Vol 8 (7) ◽  
pp. 381-404
Author(s):  
Olufemi Aladejebi

Crowdfunding has become a new phenomenon of raising capital for business. Crowdfunding is prevalent in developed nations, while it is just getting popular in developing countries. The research method used for the research was multiple case studies. The purposive sampling method was used to select the five participants for the research. The questionnaire contained fifteen questions. Eighteen themes were generated from the questions. As a result of Social distancing for protection under COVID 19, questions were sent to the respondents via the Google form. The thematic analysis result revealed that agricultural business is the most popular when it comes to crowdfunding. It is an opportunity for entrepreneurs to raise money from another source, easier to access funds through crowdfunding. The crowdfunding approaches used to raise funds by the five participants are loans, hybrid, reward-based, and royalty-based approaches. Crowdfunding is an effective funding alternative for entrepreneurs.


2021 ◽  
Vol 17 (1) ◽  
pp. 57-67
Author(s):  
Achmad J Ely ◽  
Lolita Tuhumena ◽  
Juanita Sopaheluwakan ◽  
Yvonne Pattinaja

Mangrove forest is a very productive and beneficial ecosystem. Mangrove forest resources in Amahai Village will be increasingly exploited along with the increasing population and economic pressure. The aim of this research is to identify the forms of use by the community in the mangrove area, and to recommend mangrove ecosystem management strategies in Amahai Village. This research was conducted in the mangrove forest area of ​​Amahai Village, Central Maluku Regency from September to November 2018. Sampling was carried out by purposive sampling technique of 36 respondents. The analytical method used is data analysis of descriptive qualitative to identify forms of utilization by the community. SWOT analysis is used to analyze the management strategies of mangrove ecosystem on Amahai Village by identifying internal strengths and weaknesses as well as opportunities external threats. The results obtained five forms of utilization carried out in the mangrove area of ​​Amahai Village, those are fishing, collecting sea cucumbers, gleaning shellfish (bameti), tourism (recreation), and research. There are eight management strategies produced, namely 1) implementing government policies to maintain the potential of mangrove ecosystem resources in order to meet community needs and regional income; 2) utilizing the potential of mangrove ecosystem resources for ecotourism activities and support science and technology; 3) revitalization of customary institutions as an effort to manage mangrove ecosystem areas; 4) organizing resource processing activities in the mangrove ecosystem to meet nutritional needs and increase community income; 5) development of mangrove areas with an environmental insight; 6) improving MCS (Monitoring, Controling and Surveillance); 7) improving coordination among stakeholders; and 8) increasing community knowledge and awareness about the function of mangrove ecosystems and the skills of the communities around the mangrove area.   ABSTRAK Hutan mangrove merupakan suatu ekosistem yang sangat produktif dan memberikan manfaat. Sumberdaya hutan mangrove di Negeri Amahai akan semakin tereksploitasi seiring dengan meningkatnya jumlah penduduk dan desakan ekonomi. Tujuan penelitian ini adalah untuk mengidentifikasi bentuk-bentuk pemanfaatan yang dilakukan oleh masyarakat di kawasan mangrove, serta merekomendasikan strategi pengelolaan ekosistem mangrove di Negeri Amahai. Penelitian ini dilaksanakan di kawasan hutan mangrove Negeri Amahai, Kabupaten Maluku Tengah pada bulan September hingga November 2018. Pengambilan sampel dilakukan dengan teknik purposive sampling terhadap responden sebanyak 36 orang. Metode analisis yang digunakan adalah analisis data deskriptif kualitatif untuk mengidentifikasi bentuk-bentuk pemanfaatan yang dilakukan masyarakat. Analisa SWOT digunakan untuk menganalisis strategi pengelolaan ekosistem mangrove Negeri Amahai dengan mengideintifikasi kekuatan dan kelemahan internal serta peluang dan ancaman eksternal. Hasil penelitian diperoleh lima bentuk pemanfaatan yang dilakukan pada kawasan mangrove Negeri Amahai yaitu penangkapan ikan, pengumpulan teripang, bameti, wisata (rekreasi), serta penelitian. Terdapat delapan strategi pengelolaan yang dihasilkan yaitu 1) mengimplementasikan kebijakan pemerintah untuk menjaga potensi sumberdaya ekosistem mangrove guna pemenuhan kebutuhan masyarakat dan pendapatan daerah; 2) memanfaatkan potensi sumberdaya ekosistem mangrove untuk kegiatan ekowisata serta mendukung ilmu pengetahuan dan terknologi; 3) revitalisasi kelembagaan adat sebagai upaya mengelola kawasan eksoistem mangrove; 4) menyelenggarakan kegiatan pengolahan sumberdaya pada ekosistem mangrove untuk memenuhi kebutuhan gizi dan meningkatkan pendapatan masyarakat; 5) pengembangan kawasan mangrove yang berwawasan lingkungan; 6) peningkatan monitoring, controling and surveilance; 7) meningkatkan koordinasi antar stakeholder; dan 8) meningkatkan pengetahuan dan kesadaran masyarakat tentang fungsi ekosistem mangrove serta keterampilan masyarakat sekitar daerah mangrove   Kata Kunci: Strategi pengelolaan, ekosistem mangrove, SWOT, keberlanjutan, Negeri Amahai


2020 ◽  
Vol 11 (2) ◽  
pp. 91-102
Author(s):  
Nurhayati Nurhayati ◽  
Nita Octarina

This study aims to determine what factors influence the use of management accounting in Batik SMEs in Pamekasan Regency and how it influences the use of management accounting applications related to control instruments. This research method uses a quantitative approach. The population in this study is the owner of batik SMEs in Pamekasan Regency. The sample was determined using a purposive sampling method with a total of 44 respondents. Data collection was done byinterview techniques and questionnaire distribution. Analysis of the data used in this study is SEM-PLS using the SMARTPLS 3.0 application. The results showed that education and financing did not affect the use of management accounting related to control instruments, whereas accounting training and business scale influenced the use of management accounting related to control instruments. The effect of the use of management accounting on batik SMEs in Pamekasan Regency has a positive effect on business development. After applying management accounting, SME owners can carry out planning and supervision in the operations of SMEs, in other words management accounting strongly supports business success.


2021 ◽  
Vol 5 (1) ◽  
pp. 51-62
Author(s):  
Sudarmawan Samidi

The purpose of this research is to examine the influence of service quality and price partially or simultaneously to customer satisfaction level on using services from PT. Lion Air flight operation at Soekarno Hatta Airport. Quantitative research method is used in this study through questionnaires to 160 respondents. Purposive sampling method was chosen to collect the data, then the data were then analysed using SPSS to achieve the study’s objective. The results showed that service quality and price have significant effect on customer satisfaction simultaneously and partially. This study give contribution for the practitioners in aviation industry to put service quality and price as one of their strategy to increase customer satisfaction, and this study also can be used by academicians and future researchers to enhance their knowledge in the field of marketing and strategic management.  


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