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Reproduksi merupakan proses perkembangbiakan yang diawali dari peleburan gamet haploid dari individu jantan dan betina untuk menghasilkan keturunan. lkan sebagai hewan yang hidup di perairan juga memiliki dua macam jenis kelamin, namun ada beberapa spesies memiliki dua jenis kelamin dalam satu tubuhnya (hermaprodit) dan ada pula yang mengalami pergantian jenis kelamin di masa hidupnya (protandri dan protogini). Perkembangan dan diferensiasi jenis kelamin ikan selain dipengaruhi oleh hormonal juga faktor lingkungan. Bidang kajian yang dibahas pada buku ini juga lebih detail, komprehensif dan aktual meliputi: Perkembangan embrional gonad; Struktur ovarium dan testis; Oogenesis; Spermatogenesis...
Lingkungan air memiliki karakteristik yang berbeda dengan lingkungan darat, seperti konsentrasi oksigen yang rendah, salinitas yang bervariasi, dan tekanan hidrostatik yang tinggi. Untuk dapat bertahan hidup di lingkungan air, hewan air telah mengembangkan berbagai adaptasi fisiologis. Buku ini ditujukan untuk mendukung mata kuliah Fisiologi Hewan Air. Buku ini membahas topik-topik tentang Respirasi, Osmoregulasi dan Termoregulasi, Otot dan Keseimbangan, Fisiologi Pencernaan, Sirkulasi Darah, Reproduksi, Syaraf, Hormon, dan Kesejahteraan Hewan Air. Buku ini ditulis dengan bahasa yang mudah dipahami dan dilengkapi dengan ilustrasi untuk mempermudah pemahaman. Penulis berharap buku ini dapat menjadi sumber informasi yang bermanfaat bagi mahasiswa, peneliti, dan praktisi yang tertarik mempelajari fisiologi hewan air.
This two-volume set LNCS 11578 and 11579 constitutes the refereed proceedings of the 11th International Conference on Social Computing and Social Media, SCSM 2019, held in July 2019 as part of HCI International 2019 in Orlando, FL, USA. HCII 2019 received a total of 5029 submissions, of which 1275 papers and 209 posters were accepted for publication after a careful reviewing process. The 81 papers presented in these two volumes are organized in topical sections named: Social Media Design and Development, Human Behaviour in Social Media, Social Network Analysis, Community Engagement and Social Participation, Computer Mediated Communication, Healthcare Communities, Social Media in Education, Digital Marketing and Consumer Experience.
The study of evolution at the molecular level has given the subject of evolutionary biology a new significance. Phylogenetic 'trees' of gene sequences are a powerful tool for recovering evolutionary relationships among species, and can be used to answer a broad range of evolutionary and ecological questions. They are also beginning to permeate the medical sciences. In this book, the authors approach the study of molecular evolution with the phylogenetic tree as a central metaphor. This will equip students and professionals with the ability to see both the evolutionary relevance of molecular data, and the significance evolutionary theory has for molecular studies. The book is accessible yet s...
Selected peer-reviewed papers from the Annual International Conference on Renewable Energy (ICORE 2019) Selected, peer-reviewed papers from the annual International Conference on Renewable Energy (ICORE 2019), August 9-10, 2019, Malang, East Java, Indonesia
This book provides insights on innovative strategies to build resilient food systems in the wake of challenges posed by climate change. Providing food security to the growing population especially in developing countries without exacerbating the environment is a major challenge. Climate change is expected to reduce agricultural productivity, leading to a decline in overall food availability and significantly increasing the number of malnourished children in developing countries. Interventions for enhancing the adaptive capacity of farmers especially of small holders needs immediate impetus. The policy formulation and development programs must reorient in the wake of the new expectations and ...
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This volume aims at analysing the main tools, frameworks and issues concerning sustainability disclosure. Particular emphasis is given to the Integrated Reporting, with the aim to identify its antecedents, use within companies, as well as its implementation issues, strengths and weaknesses.
This open access book applies for the first time emerging concepts of socioeconomics to analyse an economic sector, namely agriculture. It considers the rational choices of all actors in the system (just as agricultural economists do) and their cultural preferences and constraints (just as rural sociologists do). Socioeconomic concepts are subsequently used to structure agricultural issues with regard to the three governance mechanisms (hierarchy, markets, and cooperation), and different agricultural systems are presented and compared. The book will be of interest to social scientists with various backgrounds, and seeks to break down the barriers of single-disciplinary thinking.