This book describes the basic elements in the theory of animal breeding and inheritance of quantitative economic traits and the way in which this technology can be implemented in selective breeding programs for aquaculture species. The role and the implementation of molecular genetics in modern selective breeding programs is also addressed. The booka (TM)s main objective is to stimulate development of efficient selective breeding programs in aquaculture, the worlda (TM)s fastest growing industry for animal protein production.

Considerable genetic gain from selection has been demonstrated for several aquatic species in traits like growth rate and survival. AKVAFORSK and allied institutions have demonstrated the value of selection in Atlantic salmon, rainbow trout, Nile tilapia, rohu carp and the shrimp Penaeus vannamei. Presently, however, less than 10 % of total world aquaculture production is based on genetically improved animals. The urgent challenge to the industry is to implement and start selective breeding programs in order to make the aquaculture industry more competitive and sustainable, through improving the utilization of feed, land and water resources.

The text has been written by scientists at AKVAFORSK, Akvaforsk Genetics Center and co-workers in order to summarise present knowledge in the field, and to encourage implementation of selective breeding programs for economically important fish and shellfish species around the world.

From the author of the international Bestseller Breath Covering a diving championship in Greece on a hot and sticky assignment for Outside magazine, James Nestor discovered free diving. He had stumbled on one of the most extreme sports in existence: a quest to extend the frontiers of human experience, in which divers descend without breathing equipment, for hundreds of feet below the water, for minutes after they should have died from lack of oxygen. Sometimes they emerge unconscious, or bleeding from the nose and ears, and sometimes they don't come up at all. The free divers were Nestor's way into an exhilarating and dangerous world of deep-sea pioneers, underwater athletes, scientists, spear fishermen, billionaires and ordinary men and women who are poised on the brink of some amazing discoveries about the ocean. Soon he was visiting the scientists who live 60ft underwater (and are permanently high on nitrous dioxide), swimming with the notorious man-eating sharks of Reunion and descending thousands of feet in a homemade submarine. And on the way down, he learnt about the amazing amphibious reflexes activated in the human body under deep-water conditions, why dolphins were injected with LSD in an attempt to teach them to talk, and why sharks like AC/DC. The sea covers seventy per cent of Earth's surface, and still contains answers to questions about the world we are only beginning to ask: Deep blends science and adventure to uncover its amazing secrets.

Much can be learned about the condition of the planet’s environment by looking at sea turtles. They have existed for over 100 million years, and they travel throughout the world’s oceans. Suddenly, however, they are struggling to survive - largely because of things people are doing to the planet’s oceans and beaches. But what does this mean for the human species? It is possible that a world in which sea turtles cannot survive may soon become a world in which humans struggle to survive. If, however, we learn from our mistakes and begin changing our behaviour, there is still time to save sea turtles from extinction. In the process, we will be saving one of the earth’s most mysterious and time-honoured creatures. We might just be saving ourselves too. South Africa has played an active role in this, protecting its own seaturtle populations and researching turtle populations in neighbouring countries. An early pioneer in conservation techniques, South Africa has assisted many countries and researchers, and the sea turtles of south-east Africa are now extensively protected, with positive signs of recovery. Between the Tides tells this remarkable story, as seen through the eyes of the author, whose interest in sea-turtle research has taken him all over the world and involved him in exciting expeditions, scientific controversy, political unrest, the companionship of wonderful people, both scientific and conservationist, and survival by sheer luck. His lasting reward has been his association with beautiful beaches and the wonderful family of sea turtles.

In this book, originally published in 1929, Lammens is primarily concerned with the problem of Mohammad's personality and prophetic career - one of the central issues of Islamic history. He argues that Mohammad's career must be considered within the context of the urban and mercantile society of seventeenth century Mecca and rejects the idea that Islam was principally the creation of a nomadic environment.

The inspiration for "Lessons From The Ocean" came as a result of many walks on the beach at sunset. It was during these "quiet times" with God that much was revealed to Donalyn about the similarities that exist between the ocean and beach, and what happens in everyday life. After a dear friend encouraged her to write these down, Donalyn realized that this could be something that would uplift, encourage and inspire others. Her wish is that you would enjoy reading it and contemplating it as much as she did actually accruing this over several years. Donalyn Knight is the Founder and President of The Spirited Athlete, Inc. She taught for 38 years at Seminole High School in Sanford, Fl and has over 16 years of extensive athletic coaching experience. While at Seminole High School, she has been awarded over 12 Coach of the Year Awards, Teacher of the Year for Seminole High School and Seminole County and was inducted into the SHS Coaches' Hall of Fame there, being presented with The Doc Terwilleger Award. This past year the school named the Outstanding Female Athlete Award after Donalyn. She has worked with Olympic and Professional athletes and served as Fellowship of Christian Athletes Liaison to the WNBA Orlando Miracle. She also worked for USAirways in the evenings for 20 years. Her love of flying, working with people and helping them with their travel needs was something she really enjoyed. Now retired from teaching and the airline, Donalyn is growing The Spirited Athlete which is in it's 8th year. The company has a motivational and inspirational product line as well as presenting college-bound athlete seminars, coaches' seminars, etc. It is obvious by her endeavors that she has a real zest for life and that is directly related to her relationship with her Lord and Saviour, Jesus Christ. "To serve Him above all through whatever it is that I'm doing is the highest privilege of all To God Be the Glory "

Winner of the Andrew Carnegie Medal for Excellence in Nonfiction, Finalist for the Kirkus Prize for Nonfiction, and the PEN/E.O. Wilson Literary Science Writing Award, Shortlisted for the Stella Prize, Highly Commended in the Wainwright Prize for writing on global conservation, and a Sunday Independent Book of the Year. How do whales experience environmental change? Has our connection to these animals been transformed by technology? What future awaits us, and them? Fathoms blends natural history, philosophy, and science to explore these questions. Giggs introduces us to whales so rare they have never been named and tells us of whale 'pop' songs that sweep across hemispheres. She takes us into the deeps to discover that one whale's death can spark a great flourishing of creatures. We travel to Japan to board whaling ships, examine the uncanny charisma of these magnificent mammals, and confront the plastic pollution now pervading their underwater environment.

This is an inspiring tour of the world's oceans and 80 of its most notable inhabitants. Beautifully illustrated, the book includes fascinating stories of the fish, shellfish and other sea life that have somehow impacted human life - whether in our medicine, culture or folklore - in often surprising and unexpected ways.

From the bestselling author of Breath, a “fascinating, informative, exhilarating” voyage from the ocean’s surface to its darkest trenches (Wall Street Journal).

Fascinated by the sport of freediving—in which competitors descend great depths on a single breath—James Nestor embeds with a gang of oceangoing extreme athletes and renegade researchers. He finds whales that communicate with other whales hundreds of miles away, sharks that swim in unerringly straight lines through pitch-black waters, and other strange phenomena. Most illuminating of all, he learns that these abilities are reflected in our own remarkable, and often hidden, potential—including echolocation, directional sense, and the profound bodily changes humans undergo when underwater.

Along the way, Nestor unlocks his own freediving skills as he communes with the pioneers who are expanding our definition of what is possible in the natural world, and in ourselves.

Told through a series of walks beside the sea, this is a story of the most beautiful 742 miles of coastline in England, Wales and Northern Ireland: their rocks, plants and animals, their views, walks and history, and the people who have made their lives within sight of the waves. As he travels along coastal paths, visits beaches and explores coves, Barkham reflects on the long campaign to protect our shoreline from tidal erosion and human damage and weaves together fascinating tales about every aspect of the coast - from ancient conquests and smuggler's routes, to exotic migratory birds and bucket-and-spade holidays - to tell a more profound story about our island nation and the way we are shaped by our shores.

In October 1991, three weather systems collided off the coast of Nova Scotia to create a storm of singular fury, boasting waves over one hundred feet high. Among its victims was the Gloucester, Massachusetts-based swordfishing boat the Andrea Gail, which vanished with all six crew members aboard. "Drifting down on swimmers is standard rescue procedure, but the seas are so violent that Buschor keeps getting flung out of reach. There are times when he's thirty feet higher than the men trying to rescue him. . . . [I]f the boat's not going to Buschor, Buschor's going to have to go to it. SWIM! they scream over the rail. SWIM! Buschor rips off his gloves and hood and starts swimming for his life." It was the storm of the century, boasting waves over one hundred feet high a tempest created by so rare a combination of factors that meteorologists deemed it "the perfect storm." When it struck in October 1991, there was virtually no warning. "She's comin' on, boys, and she's comin' on strong," radioed Captain Billy Tyne of the Andrea Gail off the coast of Nova Scotia, and soon afterward the boat and its crew of six disappeared without a trace. In a book taut with the fury of the elements, Sebastian Junger takes us deep into the heart of the storm, depicting with vivid detail the courage, terror, and awe that surface in such a gale. Junger illuminates a world of swordfishermen consumed by the dangerous but lucrative trade of offshore fishing, "a young man's game, a single man's game," and gives us a glimpse of their lives in the tough fishing port of Gloucester, Massachusetts; he recreates the last moments of the Andrea Gail crew and recounts the daring high-seas rescues that made heroes of some and victims of others; and he weaves together the history of the fishing industry, the science of storms, and the candid accounts of the people whose lives the storm touched, to produce a rich and informed narrative. The Perfect Storm is a real-life thriller that will leave readers with the taste of salt air on their tongues and a sense of terror of the deep.

Welcome back to Heritage Cove, the little village by the sea brimming with character, community and friendship. The perfect place to fall in love... Running Heritage View Stables is everything Hazel ever dreamed of. She loves working with the horses and managing the business with her brother. But after a terrible incident, she's not sure whether she'll ever be able to put things back the way they were. Gus is ready to start over. He's moved him and his ten-year-old daughter Abigail to Heritage Cove, where he's opening his own vet practice. Everything is falling into place, especially as he watches Abigail start to come out of her shell for the first time since the accident. Neither Hazel nor Gus is looking for love, but could they each be what the other needs? And is happiness even a possibility when their pasts won't let them go? Join new friends and old, as summer comes to Heritage Cove. Praise for Helen Rolfe's heartwarming stories: 'I really loved this book. I fully intended to save it for the long bank holiday weekend, to be enjoyed leisurely over a few days, but I ended up devouring it all in just two sittings...' Jo Bartlett 'One to curl up with after a long hard day, and know you are just going to be treated to a cosy atmosphere, realistic characters that you will come to care for' Rachel's Random Reads 'Such a perfect gift of a book!' Reader Review 'Helen Rolfe is an absolute specialist at building cosy communities and making me want to live there. I want the characters as my friends!' Sue Moorcroft 'Heritage Cove has this wonderful community spirit that I so want to be part of...the balance between the emotional moments, tough relatable topics against the light-hearted fun was done ever so well' Love Books Actually 'What a beautiful story filled with happiness, comedy and lovely characters' Reader Review 'I was gripped by the story from start to finish and the end of the book left me feeling all warm and fuzzy inside' Ginger Book Geek

Enthralling tales of the sea, rivers and lakes from around the globe.

Folklore of the seas and rivers has a resonance in cultures all over the world. Watery hopes, fears and dreams are shared by all peoples where rivers flow and waves crash. This fascinating book covers English sailor superstitions and shape-shifting pink dolphins of the Amazon, Scylla and Charybdis, the many guises of Mami Wata, the tale of the Yoruba River spirit, the water horses of the Scottish lochs, the infamous mystery of the Bermuda Triangle, and much more.

Accompanied by stunning woodcut illustrations, popular authors Dee Dee Chainey and Willow Winsham explore the deep history and enduring significance of water folklore the world over, from mermaids, selkies and sirens to ghostly ships and the fountains of youth.

With this book, Folklore Thursday aims to encourage a sense of belonging across all cultures by showing how much we all have in common.

Seashores - An Ecological Guide provides an easy-to-use, authoritative reference to commonly occurring organisms. By looking at the habitats of the coastline, it focuses on key species you are likely to find. The book explains how these organisms have adapted and how they are able to cope with the environmental stresses of the seashore. With over 400 colour photographs, the guide looks first at the physical and biological features that determine our coast before surveying the variety of communities that exist on our shores. These include: rocky shores; sand and mud; estuaries; salt-marsh; sand dunes; shingle and plankton.

From time immemorial people have been drawn to the beach to collect practical resources as well as mysterious objects that have fuelled myth and folklore - it is our inherent hunter-gatherer instinct. Whether you are a seasoned beachcomber, a casual visitor or an enthusiastic naturalist this book will satisfy your curiosity about the treasures found cast up on the beach strandline, be it a pretty seashell, a spent eggcase, a seaweed frond or an exotic ocean voyager. Every find has a story to tell and we aim to answer the questions that arise from each beachcombing discovery - what is it and where has it come from? Clear photographs and descriptions are accompanied by information about the natural history of the animals and plants you encounter. Even man-made debris can offer a fascinating introduction to the workings of the ocean and illustrate how items discarded in Africa or America can wash ashore on a British beach.The beach strandline is often overlooked as a wildlife habitat but is home to a unique community of flora and fauna, many found nowhere else. It is understudied and under threat, facing a variety of man-made problems. In this book you will find a comprehensive account of the animals and plants that make up this rich and ever-changing oasis of life in the otherwise harsh environment of the beach. The more we understand the delicate nature of the strandline the more we can do to nurture and protect it.But beware - beachcombing can be an addictive pleasure! Make sure you pack this book every time you visit the beach - there is always something new to discover, whether on a nocturnal strandline safari, making seaweed whistles or hunting minibeasts with pots and pooters. Emmerse yourself in the beachcombing experience; the wind in your face, the smell of salt spray, the roar of the ocean; it's an assault on the senses, the perfect tonic - and this book is your essential guide.

Make identifying freshwater fish easy and enjoyable. This field guide by Dave Bosanko features detailed information about 87 types of Georgia fish, and the book's waterproof pages make it perfect for the dock or boat. Identify your catches with the intricately detailed fish illustrations, and verify them using the -Similar Species- comparison features. Then read fascinating facts on spawning behavior, feeding habits and more. Plus, match up your best catches against the state and North American records. With inside information for locating fishing hotspots, this book is essential for every tackle box, beach bag, RV and cabin.

In a powerful work of environmental history, Martin Doyle tells the epic story of America and its rivers, from the U.S. Constitution's roots in interstate river navigation, to the failure of the levees in Hurricane Katrina and the water wars in the west. Through his own travels and his encounters with experts all over the country-a Mississippi River tugboat captain, an Erie Canal lock operator, a project manager buying water rights for farms along the Colorado River-Doyle reveals the central role rivers have played in American history and how vital they are to its future.