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All Journal Jurnal Psikologi Management of Aquatic Resources Journal (Maquares)
Adelia Khrisna Putri
Program Studi Manajemen Sumberdaya Perairan, Jurusan Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro
Decision Sciences, Operations Research & Management Social Sciences

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TINGKAT KERJA OSMOTIK DAN PERKEMBANGAN BIOMASSA BENIH BAWAL BINTANG (Trachinotus blochii) YANG DIKULTIVASI PADA MEDIA DENGAN SALINITAS BERBEDA Putri, Adelia Khrisna; Anggoro, Sutrisno; Djuwito, -
Management of Aquatic Resources Journal (MAQUARES) Volume 4, Nomor 1, Tahun 2015
Publisher : Departemen Sumberdaya Akuatik,Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (632.794 KB)

Abstract

Ikan bawal bintang (Trachinotus blochii) atau yang dikenal dengan Pompano, mulai mendapat tempat di hati masyarakat, serta merupakan salah satu potensi unggulan dari perikanan. Ikan ini dapat dibudidayakan di Indonesia dan mempunyai daya adaptasi tinggi dan mudah dibudidayakan. Sebagai upaya optimalisasi budidaya bawal bintang (Trachinotus blochii), dibutuhkan kondisi yang optimum sesuai kebutuhan hidup bawal bintang. Dalam media, salinitas merupakan salah satu faktor fisiologis yang berpengaruh terhadap tingkat kerja osmotik, efisiensi pemanfaatan pakan dan pertumbuhan. Tujuan penelitian adalah mengkaji respon tingkat kerja osmotik, efisiensi pemanfaatan pakan dan pertumbuhan biomassa benih bawal bintang. Benih bawal bintang diperoleh di Balai Budidaya Laut Batam. Pakan yang diberikan adalah pellet sebanyak 10% bobot biomassa/hari. Metode rancangan acak lengkap diterapkan dalam penelitian ini dengan perlakuan media salinitas 15‰, 23‰, dan 31‰. Hasil penelitian menunjukkan bahwa salinitas media yang berbeda berpengaruh terhadap tingkat kerja osmotik, efisiensi pemanfaatan pakan, dan pertumbuhan biomassa. Tingkat salinitas media memberikan pengaruh nyata (P<0,05) terhadap tingkat kerja osmotik, efisiensi pemanfaatan pakan, dan pertumbuhan benih bawal bintang (Trachinotus blochii). Media salinitas 23‰ merupakan media terbaik bagi tingkat kerja osmotik, efisiensi pemanfaatan pakan dan pertumbuhan benih bawal bintang. Kualitas air selama penelitian masih dalam kisaran yang layak bagi benih bawal bintang. Silver Pompano (Trachinotus blochii) known as Pompano and is one of the excellent potential of the fishery. These fish can be cultivated in Indonesia and has a high adaptability and easily cultivated. The optimum condition of the media in accordance with the necessities of life (eco physiology) Silver pompano for domestication is not been understood, therefore the present work was aimed to examine the influence of different media salinity on the level of osmotic performance, growth, survival rate and feed efficiency. Three salinity medium were applied, 15‰, 23‰, and 31‰. The result showed that salinity affected very significantly (P<0,05) on the level of osmotic work (TKO), growth, feed utilization efficiency but no effect (P>0,05) on survival rate of Silver Pompano (Trachinotus blochii). The isoosmotic media (23‰) is the best for osmotic performance, growth, survival rate, and feed utilization efficiency silver pompano (Trachinotus blochii). Water quality during the research is still in a decent range for Silver pompano seeds. 
The interrelationship between students’ choice of coping strategy, types of problems, and demographic factors: An exploratory study Azizy, Afrizal Hasbi; Putri, Adelia Khrisna
Jurnal Psikologi Vol 23, No 2 (2024): Oktober 2024
Publisher : Faculty of Psychology, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jp.23.2.129-142

Abstract

Background: The choice of coping strategies by individuals is influenced by a range of internal and external factors. However, there is limited research on how different types of problems affect these preferences. Purpose: We aim to fill this gap by examining the interplay between coping strategies, problem types, and demographic factors. Method: Using a mixed-method approach, we analyzed secondary data from a survey of Indonesian university students. We analyzed 349 valid responses through three analytical methods. Content analysis was used to identify students' coping methods and the types of problems they faced. We then employed contingency tables and logistic regression to explore the associations among these variables.Findings: We found that high-income students are less likely to experience academic and social problems and more likely to use professional mental health services, that academic problems are linked to active and spiritual coping strategies, that female students are more likely to experience stress regulation problems, and that older students are less likely to employ emotion-regulation strategies. Implication: How students cope with their problems are influenced by the problem they experience and their demographic background. Future research should focus on specific problems and coping strategies to gain deep domain-specific insights. 
Co-Authors - Djuwito Azizy, Afrizal Hasbi Sutrisno Anggoro