Discus Fish

  discus fish: Discus World C. J. Ingham, MR C J Ingham MR, 2015-10-27 The tropical discus - fascinating, beautiful and high-maintenance. ­Looking after your ­discus is challenging and rewarding, and takes time, money and love. Now in a revised and fully updated second edition, DISCUS WORLD is the ­complete manual for the tropical discus ­keeper. Written in clear, easy-to-understand language, DISCUS WORLD is the ­indispensable reference guide to caring for these ­fascinating fish. ­Whether you are just beginning, a breeder, or a seasoned discus ­keeper, a wealth of discus information is between these covers. In this book: * Buying discus* Tips for keeping discus* Breeding discus* Feeding discus* Sexing discus* Bringing out the best in wild and cultivated varieties* Creating the perfect aquarium set-up* Keeping your discus healthy and doing the right thing when it all goes wrong* Moving house with discus* Acclimatising discus* Keeping your discus healthy when you're on holiday* Setting up a discus business* Real readers' questions... ­answered!
  discus fish: Keeping Discus Fish Quick Guide Book Alastair R Agutter, 2018-01-24 DETAILS OF THIS GREAT BOOK: Welcome to the “Keeping Discus Fish Quick Guide” for all new and existing tropical fish hobbyists. For the health care advice for aquarium bred Discus Tropical Fish, the King of the Aquarium. As soon as any aquarist sees the stunning majestic beauty and colours of Discus (symphysodon), very often their heart is captured with a desire to keep these highly intelligent and graceful cichlid species. So in our fast changing modern world of technology, and where folk are seeking instant answers at the touch of a button, and also at the request of many fabulous hobbyist readers asking me to write such a quick guide, I listened and now its here, and in spectacular full colour! Please enjoy the book, in the hope it encourages more folk to take up our traditional time honoured noble pastime of Discus Tropical Fish Keeping. INSIDE THIS BOOK: Dedication, Introduction, Author’s Marine Biography, Discus Fish Origins, Discus Fish Aquarium Sizes, Buying Discus Fish Advice, Discus Water Conditions, Discus Fish Filtration, Discus Fish Water Temperatures, Discus Fish Feeding Routines, Discus Fish Diseases, Discus Breeding and Spawning, Discus Reference Books, Author’s Diary Notes
  discus fish: Discus Fish Eberhard Schulze, 1988
  discus fish: The Discus Book Second Edition Alastair R Agutter, 2014-05-01 BOOK DESCRIPTION: This Second Edition of The Discus Book has been written and produced with updates and additional information since the first edition, written in 1989, to accommodate some of the questionable technology changes, regarding this species since the first edition of the Discus Book, when the Author successfully bred Wild Discus (symphysodon) in captivity, the recording of such work and events transcribed to the said printed book. Alastair Agutter still remains one of a select few in the world today to accomplish such a feat, breeding wild symphysodon, and as a result of such endeavours by he, and other dedicated Aquarist colleagues, they managed to break a cycle and taboo that had lasted for more than 120 years, since the founding of the pastime we know as tropical fish keeping, after The Great Exhibition of 1851 and this being, to breed The King of the Aquarium in captivity. This second edition of the book is concise and accurate, based on proven methods and techniques, to deliver the above results. The Discus, King of the Aquarium is a highly evolved species of the Cichlidae (tooth carp) Family and will challenge any Aquarist, even tank bred species. This book will not produce any quick fixes, or silver bullets to keeping symphysodon, whom are a very highly evolved sensitive species. But will provide the secrets to successfully keeping the species, if the valuable information found in this book is followed to the letter. Natural Law teaches us to evolve and refine when studying quantum mechanics and natural branching, in other words stealth, efficiency and risk aversion. Such outcomes and results only ever come from following the covenant of Natural Law when one seeks simplistic perfection in all that we do! CHAPTERS INSIDE THIS BOOK: INTRODUCTION CHAPTER ONE A Little Background Discus and their Natural Environmentand Origin of the Species CHAPTER TWO The Wild Discus Species CHAPTER THREE The Importance of the Correct Aquarium CHAPTER FOUR A Guide to Fish Food and Suitability for Discus CHAPTER FIVE Discus Prepared Super Foods and Recipes CHAPTER SIX Growing and Hatching Your Own Brine Shrimp CHAPTER SEVEN The Requirements for Discus Fish Filtration CHAPTER EIGHT The Genetics and Different Strains of Discus Fish CHAPTER NINE The Lighting and Electrical Needs CHAPTER TEN Collecting and Purchasing the Correct Fish CHAPTER ELEVEN The Correct Water Conditions and Techniques CHAPTER TWELVE The Spawning of Symphysodon CHAPTER THIRTEEN Rearing and Raising Healthy Discus toAdulthood CHAPTER FOURTEEN The Diseases and the Problems of the Species CHAPTER FIFTEEN Aquarists Essential Reference Tables CHAPTER SIXTEEN Author's Concluding Points
  discus fish: The Discus Book Alastair R Agutter, 2013-12-30 Full Description of Book The Discus Book - For The Dedicated Aquarist - First Published in 1989 and Republished for all Tropical Fish Aquarists. A Best Selling Book for Fish Care and Aquariums. Suitable as an invaluable reference for all Tropical Fish Keepers and Hobbyists, wanting to know the tricks on having healthy thriving tropical fish free of disease. Alastair Agutter began keeping and breeding tropical fish as an aquarist at the age of 9 years and been a dedicated successful British Tropical Fish Breeder and Hobbyist for over 50 years. He is still only one of a select few world-wide who have successfully bred the Discus Fish in captivity and written as a published author on the subject. IMPORTANT: Please Note there are no spelling or typing errors in this publication, it is English Language British spelt. The original photographs have now also been converted from old 35 mm to Digital. Thank You! The Discus Book (For the Dedicated Aquarist) first Published in 1989 has been reproduced due to continued demand based on the merits of the content as a record and historic value for all Discus Fish Lovers Around the World. With Pictures and Contributions from Dr. Eduard Schmidt-Focke, Dr Liv Singh Khasla, Paul Clayton, Jack Wattley, Nick Hulme and others. The book has some valuable changes and is an essential reference to breeding these beautiful species and keeping them successfully. Chapters in this Book The Discus and Its Natural Environment, The Wild Species, The Importance of the Correct Aquarium, Menu's of Live and Prepared Foods for the Discus Diet, The Requirements for Discus Filtration, The Genetics of Discus the Different Strains, Lighting and Electrical Needs, Collecting and Purchasing the Right Fish, The Correct Water and Techniques, The Successful Spawning and Breeding of Discus, Diseases and Problems, The Concluding Points. For the Successful Breeding of All Cichlids: The book can also be an invaluable reference and source for any Tropical Fish Hobbyist, especially Cichlid keepers, as the book covers breeding signs and behaviour patterns, the perfect water conditions and the importance of routines and keeping fish free from disease. Authors Editorial and Review This book has been a favourite with Tropical Fish Keepers and a Best Seller now for over 28 years. The Discus Fish, King of the Aquarium is the hardest species to breed and keep in captivity. By following the routines and methods in this book, ensures any hobbyist can keep successfully any type of tropical fish, be it a community aquarium full of tropical fishes, or seeking to specially breed cichlids and other species of interest successfully. The fish food menu's inside this book I think are very unique, where folk can make up large amounts of specially prepared food that can be frozen down and used when required, creating vast savings on fish food and providing the very best for your fish, with a high protein diet and with all the essential vitamins and nutrients, for healthy thriving fish. - Alastair R Agutter.
  discus fish: Discus Fish Thomas A. Giovanetti, 1991 Barron's Complete Pet Owner's Manuals for aquarium owners are profusely illustrated with full-color photos and instructive, high-quality line art. These books are written in clear, direct language that will appeal to amateur hobbyists, but they also contain information that even experienced breeders will find enlightening. Individual titles in this still-growing list focus on many different kinds of fish, as well as on aquarium plants and general aquarium maintenance.
  discus fish: Discus Breeding for Beginners Jack Wattley, 2000 The author provides a blueprint for success that can be followed even by hobbyists with no prior experience in keeping discus.
  discus fish: Discus Fish Training Guide for Beginner Frank Alexander Alexander, 2020-08-15 Discus fish are one of the most delightful freshwater fish in the diversion, known for their astounding hues and enormous, roundabout shape. In any case, they're infamous for being amazingly hard to keep, with Internet gatherings regularly suggesting severe practices like 100% water changes each day. In actuality, just a little level of individuals can adhere to those guidelines, and the remainder of the world uses all the more low upkeep techniques. We've spent numerous years keeping plate by and by at home, thinking about them in our fish store, and helping clients be fruitful with them. In view of our encounters, this consideration control offers down to earth counsel and valuable tips for fledglings beginning their first plate tank.
  discus fish: Discus Care Fish Care Manuals, 2016-08-25 Discus Care: The Complete Guide to Caring for and Keeping Discus as Pet Fish The Discus (scientifically known as Symphysodon) is a genus from the Cichlidae family. The Discus is a freshwater fish that is native to the Amazon river basin. The Discus thrives in the Neotropical rivers and floodplain lakes of the Amazon. However the Discus can now be found in every continent of the world due to their popularity in the home aquarium trade. All Symphysodon species have a latterly compressed body in a similar fashion to the latterly compressed bodies of the Cichlids. However, unlike the Cichlid, the Discus has no extended finnage which gives their bodies the rounded shape that inspires their name. It is a very common misconception that Discus are hard to keep as pets but Discus have proven over time that they are incredibly robust, hardy and relatively easy fish to keep. Here at Fish Care Manuals we are passionate about fish care. As a brand we have a strong idea of what makes up a good fish care book. We have consulted with multiple experts in the field of fish caring to allow us to create a book filled with cumulative opinions and best practices. The experts we consult range from veterinarians to every day fish keepers who have had years of experience caring for the specific fish each book is on. Our aim, and mission, is to produce the best possible fish care books that are a great value for money. Tags: DISCUS, DISCUS care, DISCUS fish, DISCUS fish care, DISCUS pet, DISCUS pet care, DISCUS pet fish, DISCUS aquarium, aquarium, fresh water, fresh, water, salt water, salt, tropical fish, tropical fish care, tropical pet fish, exotic, tropical, exotic fish, exotic fish care, exotic pet fish, aquarium maintenance, aquarium how to, best aquarium, fish food, DISCUS care guide, DISCUS care manual, how to look after DISCUS, best practice to care for DISCUS, fish care for beginners,
  discus fish: The Discus Mic Hargrove, Maddy Hargrove, David Brown, 2008-04-21 Written by tropical fish experts with over 30 years experience, The Discus includes all the information a new fish keeper needs to begin this exciting hobby: how to select a tank; proper water conditions; nutrition; and breeding your own beautiful fish. Like all the titles in the Owner's Guide series, The Discus is filled with info-packed sidebars and striking color photos. This book helps make keeping Discus a fun and rewarding experience for the hobbyist.
  discus fish: Discus Health Dieter Untergasser, 1991
  discus fish: Discus Fish Secrets Viktor Vagon, 2021-02-02 Discus Fish Secrets Care Guide for Discus Fish The mighty, holy grail of the cichlid condition is now domesticated and is able be treated by the average intermediate fish keeper (or a dedicated beginner). This cichlid is still considered one of the most beautiful cichlids, and for nice reason. Their shape, patterns, and colors are unique and extremely attractive in any fishbowl or aquarium. Go to the author page to see more books. (click on Follow to not miss book discounts and new books, I have many promotions every day !) All my guides are taken from the veterinary university where I work as teacher As always, my Ebook has photos And links, so you can order products online. Therefore, buying a printed version, Kindle version will be free for you! I wish you a strong fish family and a pleasant time with them.
  discus fish: Super Foods Tropical Fish and Discus Book Alastair R Agutter, 2017-01-01 Watch Your Fish Grow by the Day! Make your own Tropical Fish and Discus Cichlids Super Foods and See Your Healthy, Happy Thriving Fish Growing by the Day! For me writing this book has been an incredible journey, where I have learnt so much about food for my tropical fish and what's best for them. How the book came about, and the actual writing of this publication, was in truth down to world famous Naked Master Chef “Jamie Oliver” who was the inspiration for me, where he clearly shows after selling more than 20 million of his very many fabulous books written on Great Foods, that there is a real desire and passion for experiencing food that is a real pleasure and joy to eat, and I might also add, very healthy and good for us all, we humans that is! Then when continuing to decide on writing the book, I also thought of the line from the fabulous film “We Bought a Zoo” where the beautiful Scarlet Johannsson asked Matt Damon “why did he buy the zoo” and to which he replied “why not” and that's how this book come into being, I thought to myself “why not” write a book on tropical fish super foods and as they say, the rest is history. I really know you will get a really big kick out of this book as a Tropical Fish Hobbyist or Discus Lover. As it is no exaggeration when I say, once your fish begin to eat these “Super Foods” on a regular basis, you will literally see your fish growing by the day! In the book, you will find a great number of fabulous super food recipes to try for your tropical fish and discus. I know by using any of these recipes, you will eventually have healthy, happy, thriving tropical fish, and growing to a size you could have only imagined. The Super Foods recipes found in this book, only use fresh meats and vegetables. Perhaps the book is very timely, as we become more aware today of micro beads and other grave pollutant elements finding their way into the water table system and food chain that can harm our pets, wild life and ourselves. So by making these super foods, at least you know for your peace of mind, what ingredients are used, and another enormous benefit to you, being the massive savings on tropical fish food. Over the months your fish will grow and grow, until eventually, your tropical fish will come into breeding condition and want to spawn, if the water and other aquarium conditions are optimal and right. So please enjoy this book and the plethora of delights you can now feed to your Tropical Fish and Discus. CONTENTS INSIDE THIS BOOK: Contents INTRODUCTION - A Little Food Secret to Share INSPIRATION - Philosophy of Healthy Happy Fish FISH FOODS - A Little Background to Past Diets FOOD SCIENCE – Proteins and Trace Elements FOOD RECIPES – High Protein Super Food Recipes FEEDING NOTES – Additional Recipe Feeding Notes MAINTENANCE – Tips and Advice FISH HEALTH – Health Issues of Poorly Tropical Fish FOOD SCHEDULE – Author’s Food Tables TABLES – Essential Reference Tables for Aquarists ABOUT AUTHOR – Author’s Marine Background
  discus fish: International Wildlife Encyclopedia Maurice Burton, Robert Burton, 2002 This twenty-two volume set presents the appearance and behavior of thousands of species of animals along with species population and prospects for survival in a arranged alphabetically and easy-to-read format.
  discus fish: Discus Fish Training Justin Tyler, 2021-04-06 Discus fish are one of the most delightful freshwater fish in the diversion, known for their astounding hues and enormous, roundabout shape. In any case, they're infamous for being amazingly hard to keep, with adequate proper practices can yield desirable result.Discus fish training is a book that provides advice on what to look for in selecting and produce quality discus and how they are judged in competitions.
  discus fish: The Utmost Guide to Discus Fish Care Joatham Mwijage, 2016-06-24 The book that you are now reading is the result of many years of experience and research in field of discus fish care. The Utmost Guide to Discus Fish Care caters to both beginners and experts, and excludes no aquarist. The book is split into two parts. The first part of the book deals with preliminary considerations of buying and taking care of discus fish. For a precise description and history of this fish species, you may read the section Meet the Pompadour Fish. For specific information on the geographical roots and the different strains of the discus fish, turn to the section Getting to Know the Discus. To avoid any confusion over what kind of tropical fish the discus is, I've prepared a special section for first time aquarists who may want to take care of discus fish, but are afraid to do so because of the common misconception that discus fish are too hard to take care of; read the section Demystifying Discus Care for more information. The second part of the book provides in-depth information, tips, and essential guidelines for discus fish care. For more information on water temperature requirements, read the section Understanding Temperature Requirements. For first time aquarists who are unaware of ammonia and its impact on tank water, read the section The Nitrogen Conundrum. Additional information on the discus' diet and common diseases that affect this species can be found in the sections Discus Fish Nutritional Guidelines and Dealing With Diseases.
  discus fish: Discus Fish Secrets Stan Leo Sammut, 2017-01-16 Many people think that discus fish are only for advanced fish keepers. They couldn't be more wrong. Taking care of discus fish is easy if you only know how to do it properly. Discus fish are very sensitive when it comes to water condition and food quality. Here are some basic tips you need to follow in order to properly take care and breed discus fish in your aquarium.
  discus fish: The Proper Care of Discus Bernd Degen, 1993 This book provides readers with the basics of discus ownership, from selecting the right fish to providing the best aquarium management and health care.
  discus fish: Library of Congress Subject Headings Library of Congress, 2003
  discus fish: Proceedings of the International Moving Image Cultures Conference (IMOVICCON 2023) Rista Ihwanny, Salima Hakim, 2024-04-05 This is an open access book. The 3rd IMOVICCON aims to celebrate moving images by looking at their past, present, and future. It’s necessary to examine the past, the present, and the future of moving images since the past can be used as a reflection site. The present tells how far we’ve come, and it is even more interesting to see what the future holds for moving image culture. Ever since the invention of the Phenakistoscope until the development of the Metaverse, moving image culture continued to evolve and became a huge inspiration for various research and publications. Its transdisciplinary nature also makes moving images approachable by every methodology available, making it possible to be explored and researched by multiple scientific disciplines. This conference is an academic space for students, lecturers, researchers, practitioners, and moving image enthusiasts to exchange and share academic experiences and disseminate their recent research on all aspects of moving images. Submissions can address any aspect, but not limited to, of the past, the present, and the future of moving images.
  discus fish: Library of Congress Subject Headings Library of Congress. Cataloging Policy and Support Office, 2009
  discus fish: Financial Cryptography and Data Security Michael Brenner, Nicolas Christin, Benjamin Johnson, Kurt Rohloff, 2015-09-04 This book constitutes the refereed proceedings of three workshops held at the 19th International Conference on Financial Cryptography and Data Security, FC 2015, in San Juan, Puerto Rico, in January 2015. The 22 full papers presented were carefully reviewed and selected from 39 submissions. They feature the outcome of the Second Workshop on Bitcoin Research, BITCOIN 2015, the Third Workshop on Encrypted Computing and Applied Homomorphic Cryptography, WAHC 2015, and the First Workshop on Wearable Security and Privacy, Wearable 2015.
  discus fish: The Great Dictionary English - Russian Benjamin Maximilian Eisenhauer, This dictionary contains around 60,000 English terms with their Russian translations, making it one of the most comprehensive books of its kind. It offers a wide vocabulary from all areas as well as numerous idioms. The terms are translated from English to Russian. If you need translations from Russian to English, then the companion volume The Great Dictionary Russian - English is recommended.
  discus fish: The Great Dictionary English - Finnish Benjamin Maximilian Eisenhauer, This dictionary contains around 80,000 English terms with their Finnish translations, making it one of the most comprehensive books of its kind. It offers a wide vocabulary from all areas as well as numerous idioms. The terms are translated from English to Finnish. If you need translations from Finnish to English, then the companion volume The Great Dictionary Finnish - English is recommended.
  discus fish: Sins of the Mother Irene Kelly, Jennifer Kelly, Matt Kelly, 2015-08-13 Sins of the Mother is a powerful and inspiring story of a family whose love was tested but never broken, who finally found the strength to heal the past. Irene Kelly was brought up in poverty and abused by her mammy from an early age. But home life was still better than the time she spent in one of Dublin's industrial orphanages. In that harsh regime she was beaten and sexually assaulted. Set to work in the nursery, she saw the nuns treat the babies with horrifying cruelty. As an adult those experiences haunted Irene. When she fell in love with Matt, who was fighting his own demons, they moved to England for a new start. They wanted their daughter Jennifer to have a better life, but in trying to protect her by hiding their past they only succeeded in pushing her away. Until, one day, Irene had a phone call from Ireland that changed everything . . . 'An epic and stirring story which shows that it is possible to overcome the worst start in life.' Sunday Mirror
  discus fish: Discus Aquarium Log Fishcraze Books, 2019-06-16 This 6x9 120 page blank lined book is a must for all fish tank and aquarium hobbyists. easy tracking of scheduled maintenance, feeding details and fish health. Record All Aquarium And Fish Needs. A Great Gift Idea For Fish Keepers Of All Sorts!
  discus fish: Blood Cells: Advances in Research and Application: 2011 Edition , 2012-01-09 Blood Cells: Advances in Research and Application: 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Blood Cells. The editors have built Blood Cells: Advances in Research and Application: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Blood Cells in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Blood Cells: Advances in Research and Application: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
  discus fish: The ... Yearbook of Agriculture United States. Department of Agriculture, 1980
  discus fish: Discus for the Perfectionist Jack Wattley, 1991
  discus fish: Ornamental Fisheries and Aquarium Keeping Atul Kumar Jain, Abhinika Jain Rane, Archana Sinha, 2025-05-07 This valuable reference book provides an overview of the global aquarium industry, with insights from the Indian aquarium industry. It covers the different aspects of the aquarium industry including the culture of freshwater and marine ornamental fishes, invertebrates, farming of ornamental aquatic plants, manufacturing of aquarium accessories, export-import of ornamental fishes, capacity building, and human resource development, institutional support, and policy framework. It discusses historical review, global and national scenario, future scope, market potential, and policy support required to achieve these goals. The book is meant for professionals in the fisheries industry and academicians in fisheries science.
  discus fish: Animal Health , 1984
  discus fish: Tropical Fish Hobbyist , 1997
  discus fish: Marine Bioactive Peptides: Structure, Function, and Therapeutic Potential Tatiana V. Ovchinnikova , 2019-10-25 This Special Issue Book, “Marine Bioactive Peptides: Structure, Function, and Therapeutic Potential includes up-to-date information regarding bioactive peptides isolated from marine organisms. Marine peptides have been found in various phyla, and their numbers have grown in recent years. These peptides are diverse in structure and possess broad-spectrum activities that have great potential for medical applications. Various marine peptides are evolutionary ancient molecular factors of innate immunity that play a key role in host defense. A plethora of biological activities, including antibacterial, antifungal, antiviral, anticancer, anticoagulant, endotoxin-binding, immune-modulating, etc., make marine peptides an attractive molecular basis for drug design. This Special Issue Book presents new results in the isolation, structural elucidation, functional characterization, and therapeutic potential evaluation of peptides found in marine organisms. Chemical synthesis and biotechnological production of marine peptides and their mimetics is also a focus of this Special Issue Book.
  discus fish: Bibliography of Agriculture with Subject Index , 1993-11
  discus fish: Brazilian Bulletin , 1963
  discus fish: Doozer Jack Davenport, 2020-05-29 18+ for language and sexual situations... Marco “Doozer” Mancini has spent his entire life riding with an angel on one shoulder and a demon on the other, torn between his family's expectations and a loyalty to the club he swore to serve. Underestimate Stephanie “Trouble” Palmer and it might be the last thing you ever do. She's as tough as the streets that made her but an unexpected connection with a fellow biker may just bring out her softer side. Can the spark that ignited their passion burn bright enough to ward away the enemies closing in from all sides?
  discus fish: Transition Elements—Advances in Research and Application: 2012 Edition , 2012-12-26 Transition Elements—Advances in Research and Application: 2012 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Transition Elements. The editors have built Transition Elements—Advances in Research and Application: 2012 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Transition Elements in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Transition Elements—Advances in Research and Application: 2012 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
  discus fish: Sex Chromosomes and Sex-Linked Genes Susumu Ohno, 2013-06-29 Natural selection operates among individual organisms which differ in their genetic constitution. The degree of hereditary variability within a species is greatly enhanced by cross-fertilization. Indeed, the mechanism of sexual reproduction occurred very early in evolution, for it is seen today even in bacteria. In Escherichia coli, fertilization occurs by passage of the single chromosome from the male into the female bacterium (LEDERBERG, 1959). In multicellular organisms, the separation of germ from soma, and the production of haploid gametes became mandatory. The gametes were of two types. One, extremely mobile, was designed to seek out and penetrate the other, which loaded with nutrients, received the mobile gamete and intiated the development of a new individual. The foundation for true bisexuality was thus laid. In the primitive state of bisexuality, whether an individual is to be a sperm-producing male or an egg-producing female appears to be decided rather haphazardly. In the worm, Banelia viridis, the minute males are parasites in the female. Larvae that become attached to the proboscis of an adult female become males, while unattached larvae sink to the bottom and become females (BALTZER, 1935). The more sophisticated state of bisexuality was initiated by setting aside a particular pair of chromosomes for specialization and making either the male or the female a heterogametic sex. Sex chromosomes as we know them were thus born.
  discus fish: Deciphering Data Architectures James Serra, 2024-02-06 Data fabric, data lakehouse, and data mesh have recently appeared as viable alternatives to the modern data warehouse. These new architectures have solid benefits, but they're also surrounded by a lot of hyperbole and confusion. This practical book provides a guided tour of these architectures to help data professionals understand the pros and cons of each. James Serra, big data and data warehousing solution architect at Microsoft, examines common data architecture concepts, including how data warehouses have had to evolve to work with data lake features. You'll learn what data lakehouses can help you achieve, as well as how to distinguish data mesh hype from reality. Best of all, you'll be able to determine the most appropriate data architecture for your needs. With this book, you'll: Gain a working understanding of several data architectures Learn the strengths and weaknesses of each approach Distinguish data architecture theory from reality Pick the best architecture for your use case Understand the differences between data warehouses and data lakes Learn common data architecture concepts to help you build better solutions Explore the historical evolution and characteristics of data architectures Learn essentials of running an architecture design session, team organization, and project success factors Free from product discussions, this book will serve as a timeless resource for years to come.
Discus.com – The word's largest selection of discus fish for sale
Welcome to the world’s largest selection of hybrid and wild-caught discus fish for sale and #1 discus destination on the internet. Shop | Strains | Stock List | Shop by Color | Proven Pairs …

What is a Discus Fish? – Discus.com
Discus belong to a family of fish known as cichlids, which includes the Waroo, Triangle cichlid, and Chocolate cichlid. These fish, like discus, have flat, oval-shaped bodies. Their fins are …

Products – Discus.com
Our facilities collectively house over 30,000 gallons, 25,000 discus fish, and 90+ strains at any given time. We pride ourselves for our superb customer service and high quality discus. If …

The Natural Habitat of the Discus Fish
Discus fish thrive when they receive continuous flows of freshwater. They live in small groups among submerged tree roots, decayed wood, vegetation, and aquatic grasses, which they …

Discus Fish Keeping Tips, Guides & Care Sheet for Beginners
Beginners are more subject to the risks of the keeping discus fish as they have a lowest practical experience on this beautiful sensitive fish. Here is some basic tips on how to keep discus …

Breeding - Discus.com
We also carry timeless classics such as the Peter Thode Turquoise and Schmidt-Focke Striated Red Discus. Our facilities collectively house over 30,000 gallons, 25,000 discus fish, and 90+ …

Hybrid Discus Fish
Hybrid Discus Fish Room We are pleased to offer a wide variety of discus fish on sale. Authentic cultivated fish (also known as hybrids) make a powerful statement and are a sight to behold. …

Discus.com Full Stock List
We specialize in the finest discus and discus-related products. For example, we are the sole breeders of discus legend Marc Weiss’ original breeding stock in the world. We also carry …

Available Strains - Discus.com
We are pleased to offer the largest variety of discus strains for sale in the world. Click on a strain to learn more and purchase fish! Wild Strains. We proudly carry every wild discus variety ever …

The Origins of Discus Fish
Discus fish origins can be traced back to the early 1800s. It came about after a royal entourage who were naturalists sent by the Emperor of Austria, Franz I, to propose to Leopoldine, the …

Discus.com – The word's largest selection of discus fis…
Welcome to the world’s largest selection of hybrid and wild-caught discus fish for sale and #1 discus …

What is a Discus Fish? – Discus.com
Discus belong to a family of fish known as cichlids, which includes the Waroo, Triangle cichlid, and Chocolate …

Products – Discus.com
Our facilities collectively house over 30,000 gallons, 25,000 discus fish, and 90+ strains at any given time. We …

The Natural Habitat of the Discus Fish
Discus fish thrive when they receive continuous flows of freshwater. They live in small groups among …

Discus Fish Keeping Tips, Guides & Care Sheet for Begin…
Beginners are more subject to the risks of the keeping discus fish as they have a lowest practical experience on this …