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Reproduction of tank goby(Glossogobius giuris) in Ujung Pangkah Waters, East Java Sulistiono, .
Jurnal Akuakultur Indonesia Vol. 11 No. 1 (2012): Jurnal Akuakultur Indonesia
Publisher : Indonesian Society of Scientific Aquaculture (ISSA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1337.073 KB) | DOI: 10.19027/jai.11.64-75

Abstract

Tank goby (Glossogobius giuris) is a commonly fish found in coastal area. This study was aimed to investigate reproduction of the fish. Samples were collected from July to December 2005 from fish caught by fishermen using gill net and trap net in Ujung Pangkah Waters. Analysis was done to estimate sex ratio, gonad maturity, gonado somatic index, fecundity, and oocyte diameter. During the observation, the tank goby fish was 198 individual consisted of 112 male and 86 female fish varied 63‒230 mm in total body length. Sex ratio was around 1:1.1. First maturity gonad of male was 111‒134mm and female was 87‒110 mm total body length, respectively. According to gonad maturity stage and gonado somatic index, the fish was estimated to spawn from July to December. During July and August, the gonad maturity stage and gonado somatic index were higher indicating a lot of spawning fish during those months. Fecundity was 10,640‒150,639eggs and oocyte diameter was 49‒372 µm. Based on the oocyte distribution, the fish was estimated apartial spawner. Keywords: Ujung Pangkah Waters, reproduction,tank goby,Glossogobius giuris
Aspek biologi reproduksi ikan pari blentik Neotrygon kuhlii di perairan Selat Sunda Abubakar, Salma; Boer, Mennofatria; Sulistiono, ,
Jurnal Akuakultur Indonesia Vol. 15 No. 2 (2016): Jurnal Akuakultur Indonesia
Publisher : Indonesian Society of Scientific Aquaculture (ISSA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3317.403 KB) | DOI: 10.19027/jai.15.2.189-197

Abstract

ABSTRACT Bluespotted stingray fish Neotrygon kuhlii is the important fish economically captured from Sunda Strait. Intensive fishing could decrease bluespotted stingray stock. This study was aimed to know the length-weight, and reproduction characteristic. The reproduction characteristic covered the size of first gonad maturity, the level and also index of gonad maturity of bluespotted stingray fish in Labuan Fishing Dock, Banten. The result showed the equilibrium of length-weight of female fish was about W=0.0007L2,1496. Meanwhile, the male fish was about W=0.0000L2.251. Male fish was better than female fish according their relatively condition factor. Decreasing of the factor condition was caused by feeding habit to grow the reproduction cells. The size of first gonad maturity for the female and male respectively were about 550–799 dan 550–760 mm. The highest level maturity even female or male was on IV achieved in June and Juli 2013. Increasing the index (IKG) was followed by the level of gonad maturity. Kata kunci: bluespotted stingray, reproductive characteristic, condition factor, Sunda Strait  ABSTRAK Ikan pari blentik Neotrygon kuhlii merupakan salah satu sumberdaya ikan ekonomis penting dan sebagai hasil penangkapan di Selat Sunda. Penangkapan yang intensif dapat mengakibatkan penurunan stok ikan pari blentik. Penelitian ini bertujuan untuk mengetahui panjang bobot, dan  karakteristik reproduksi. Karaktersitik reproduksi itu sendiri meliputi ukaran pertama kali matang gonad, tingkat kematangan gonad dan indeks kematangan gonad ikan pari blentik di perairan Selat Sunda yang didaratkan di Pelabuhan Perikanan Pantai (PPP) Labuan, Banten. Berdasarkan hubungan panjang bobot ikan pari betina diperoleh persamaan hubungan panjang dan bobot untuk ikan pari blentik betina W=0,0007L2,1496. Sementara itu pada ikan jantan, persamaan hubungan panjang bobot W=0,0000L2,251. Ikan pari blentik jantan mempunyai faktor kondisi yang relatif lebih besar daripada ikan pari betina. Penurunan nilai faktor kondisi disebabkan bagian terbesar dari makanan yang dikonsumsi digunakan untuk perkembangan sel-sel reproduksinya. Kisaran ukuran pertama kali matang gonad ikan pari blentik betina 550–799, sedangkan untuk ikan pari jantan adalah dengan kisaran panjang total tubuh 550–760 mm. Tingkat kematangan gonad tertinggi ikan betina dan jantan (TKG IV) ditemukan pada bulan Juni dan Juli 2013. Indeks kematangan gonad (IKG) ikan pari semakin meningkat seiring dengan meningkatnya TKG. Keywords: ikan pari blentik, karakteristik reproduksi, faktor kondisi, Selat Sunda
Literasi Digital Investor Ritel di Era Disrupsi: Navigasi Keuangan Pribadi dan Pasar Modal Menuju Society 5.0 yang Berkelanjutan Endro Isnugroho; Sulistiono Sulistiono; Nida Urrahma Hidayati
Prosiding Seminar Nasional Ilmu Manajemen Kewirausahaan dan Bisnis Vol. 2 No. 2 (2025): Desember : Prosiding Seminar Nasional Ilmu Manajemen Kewirausahaan dan Bisnis
Publisher : Asosiasi Riset Ilmu Manajemen Kewirausahaan dan Bisnis Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/prosemnasimkb.v2i2.201

Abstract

The era of digital disruption has brought significant changes to people's behavior, including investment activities. Retail investors have increasingly easy access to the capital market through digital applications such as Neo HOTs, Bibit, and Stockbit. However, this convenience is not always accompanied by adequate digital financial literacy. This study aims to explore retail investors' experiences using digital investment applications and understand their perceptions of sustainable investing in the Society 5.0 era. The research method used a descriptive qualitative approach with in-depth interviews with a number of active retail investors. The findings indicate that the majority of retail investors are attracted to investing due to ease of access and promotions, but many still make impulsive decisions based on social media trends (fear of missing out/FOMO). A small number of investors are beginning to understand the importance of sustainable investing (ESG), although it has not yet become a primary consideration in investment decisions. This study emphasizes the importance of more targeted digital financial literacy so that people can use technology wisely, maintain personal financial sustainability, and contribute to sustainable development.
Analisis Paparan Digital Fatigue Pada Generasi Z Untuk Mendukung Produktivitas Sehat di Era Digital Sulistiono Sulistiono; Erna Wigati; Susilo Budi Winarno; Tuti Panghastuti
Prosiding Seminar Nasional Ilmu Manajemen Kewirausahaan dan Bisnis Vol. 2 No. 2 (2025): Desember : Prosiding Seminar Nasional Ilmu Manajemen Kewirausahaan dan Bisnis
Publisher : Asosiasi Riset Ilmu Manajemen Kewirausahaan dan Bisnis Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/prosemnasimkb.v2i2.206

Abstract

The excessive and uncontrolled intensity of Gen-Z in using digital media through various communication and information platforms can impact mental/physical health, resulting in unhealthy productivity in various spheres of activity. This study aims to analyze the causes, impacts, and solutions of digital media exposure on the aspect of digital fatigue which is expected to provide a new approach for Gen-Z to develop professional attitudes and mindsets in using digital media. The research method in this study uses a qualitative descriptive method. The sampling technique in this study uses purposive sampling and snowball sampling techniques. The purposive sampling technique is determined by the age range of Gen-Z from STIE Pariwisata API Yogyakarta students born between the mid-1990s and early 2010s. The snowball sampling technique used is all 129 students. Data analysis is carried out descriptively based on the percentage of respondents' assessments from the available questions. The results of this study are, the higher the percentage of counterproductive causes, impacts, and solutions to the digital fatigue aspects chosen by respondents, the more unhealthy productivity will result, conversely, the lower the percentage of counterproductive causes, impacts, and solutions to the digital fatigue aspects chosen by respondents, the more healthy productivity will result. The contribution of this study is, to support the success of activities carried out through the use of digital media in accessing information and communication channels, Gen-Z must be able to make proportional choices, namely choices that are oriented towards mental/physical health so that they can place Gen-Z in a healthy productivity environment.
Keragaman ikan di Danau Cala, Kabupaten Musi Banyuasin Sumatera Selatan Abu Ammar, Jifi; Mukhlis Kamal, Mohammad; ., Sulistiono
Depik Vol 3, No 3 (2014): Desember 2014
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.3.3.2147

Abstract

The aim of his studi was to evaluate the fish fauna in Danau Cala in dry season, transition season, and the tide season. The survey was conducted 3 times on July 2013, October 2013 and January 2014 as representative of dry, transition and tide seasons. The fish sampling was conducted by gillnets and fish traps. A total of 35 fish species were recorded during the study; 23 species in dry season, it was slot777 dominated by tembakang fish (Helostoma temminckii) from family Helosmatidae, Sepat siam fish(Trichogaster pectoralis) from Belontiidae family, and snakehead fish (Channa striata) of Channidae family. A total of 16 species were recorded on transitional seasons where baung fish (Hemibagrus nemurus) of the family Bagridae, and seluang fish (Rasbora sp) of the family Cyprinidae were predominant. In addition, 15 fish species were recorded on tide season which was dominated by baung fish (Hemibagrus nemurus) and tendon fish (Mystus sabanus) of family Bagridae
Co-Authors . Arisyono . Muslihuddin . Sudarmanto ., Carissa A. Furkon Abubakar, Salma Achmad Fahrudin Agus Muji Santoso Agustinus M Samosir Ahmad Zahid Akhmad Firmansyah Aldi Chandra Khoncara Ali Mashar Ali Suman Anang Najamuddin Andi Chadijah Aris Darmansah Azis Purwantoro Bahroin Tampubolon C.P. Simanjuntak Chadijah, Andi Charles Parningotan Haratua Simanjuntak Citra Sari D.S. Sjafei Diah Etika Maharatih Setiarina Dian Herawati Djadja S . Sjafei Djamar Tumpal F. Lumbanbatu Dwi Ari Budi Retnani Dwi Bayu Rendra Eddy Supriyono Endah Purnamawati Erna Wigati Ertika Noviani Etty Riani F.Y. Tantu Fadly Y Tantu Faleh Setia Budi Fredinan Yulianda G.S. Haryani Gadis Sri Haryani Happy Widyarini Hawis H Madduppa Isdradjad Setyobudiandi Isdrajad Setyobudiandi Ismail Ismail Isnugroho, Endro Issirep Sumardi Jack Mamangke Jifi Abu Ammar Joko Purnomo Kurniawati H Ekosafitri Lilik Rodiana M F Rahardjo M Nursid M. Brodjo M. M. Kamal M. Robiyanto M.M. Kamal Ma’arif, Roisul Maria Ulfa Megandhi Gusti Wardhana Mennofatria Boer Mita Ory Pakarti Mohammad Mukhlis Kamal Muhammad Atma Aditya Muhammad Fadjar Rahardjo Muhammad Ichsan Ismail Muhammad Raihan Pambudi Muhammad Salman MUJIZAT KAWAROE Murniarti Brodjo Murniarti Brojo Muslihuddin . Muslihuddin . Nadya Adharani Nica Cah yani Nida Urrahma Hidayati Niken T.M. Pratiwi Nur Rohim Nurlisa Alias Butet Nurul Widayati Perangin-angin, Robet R F . Kaswadji R F Kaswadji R. Affandi Rahmat Kurnia Resna Handayani RIDWAN AFFANDI Risa Tiuria Rizqan Khairan Munandar Roisul Ma’arif Romanus Edy Prabowo Rugaya H. Serosero S. Refiani S.H. Nasution Salma Abubakar Santoso . Selia Hermawati Sigid Hariyadi Siti Sofiah Sonja Kleinertz Subiyanto . Susilo Budi Winarno Suzana Refiani Suzana Refiani Taufik Fakih Hakiki Thomas Nugroho Tuti Panghastuti Ujang Sehabudin, Ujang Wahyuni, Sri Widjojo, Adi Yani Sugiyani Yeni Irawati Yudha Prastyo Yunizar Ernawati Zulkarnaen Zulkarnaen Zulkarnain