What Is An Ocean Book in PDF, ePub and Kindle version is available to download in english. Read online anytime anywhere directly from your device. Click on the download button below to get a free pdf file of What Is An Ocean book. This book definitely worth reading, it is an incredibly well-written.
This introductory book on oceans shows children where the five oceans are on a simple map and on photos of planet Earth. Children are asked to find the icy oceans at the top and bottom of Earth and the warm oceans around the middle of Earth, where coral reefs are found. Amazing photos of a huge moray eel, sea turtle, shark, octopus, and whales will delight young readers, as will photos of children playing in ocean waves.
In a Perfect Ocean by Daniel Pauly,Jay Maclean Pdf
Recent decades have been marked by the decline or collapse of one fishery after another around the world, from swordfish in the North Atlantic to orange roughy in the South Pacific. While the effects of a collapse on local economies and fishing-dependent communities have generated much discussion, little attention has been paid to its impacts on the overall health of the ocean's ecosystems. In a Perfect Ocean: The State of Fisheries and Ecosystems in the North Atlantic Ocean presents the first empirical assessment of the status of ecosystems in the North Atlantic ocean. Drawing on a wide range of studies including original research conducted for this volume, the authors analyze 14 large marine ecosystems to provide an indisputable picture of an ocean whose ecology has been dramatically altered, resulting in a phenomenon described by the authors as "fishing down the food web." The book: provides a snapshot of the past health of the North Atlantic and compares it to its present status presents a rigorous scientific assessment based on the key criteria of fisheries catches, biomass, and trophic level considers the factors that have led to the current situation describes the policy options available for halting the decline offers recommendations for restoring the North Atlantic An original and powerful series of maps and charts illustrate where the effects of overfishing are the most pronounced and highlight the interactions among various factors contributing to the overall decline of the North Atlantic's ecosystems. This is the first in a series of assessments by the world's leading marine scientists, entitled "The State of the World's Oceans." In a Perfect Ocean: The State of Fisheries and Ecosystems in the North Atlantic Ocean is a landmark study, the first of its kind to make a comprehensive, ecosystem-based assessment of the North Atlantic Ocean, and will be essential reading for policymakers at the state, national, and international level concerned with fisheries management, as well for scientists, researchers, and activists concerned with marine issues or fishing and the fisheries industry.
Author : Will Kyselka Publisher : University of Hawaii Press Page : 257 pages File Size : 47,9 Mb Release : 2021-05-25 Category : History ISBN : 9780824842543
An Ocean in Mind poses a number of provocative questions about the ways in which the human mind acquires, utilizes, and transmits different forms of knowledge. Author Will Kyselka has woven an exploration of this theme around the story of the Hōkūleʻa, a re-creation of a traditional Polynesian sailing vessel that completed a successful roundtrip journey between Hawaii and Tahiti in 1980. From this story emerges portraits of two men who played integral roles in that voyage. Nainoa Thompson, a young man of Hawaiian descent, kept the Hōkūleʻa on its 6,000-mile course using only the stars and the sea as his guides. He was inspired by Carolinian navigator Mau Piailug, a gentle, softspoken man with keen instincts and an unlimited understanding of the oceans and heavens derived from his Oceanic cultural past. Thompson also worked with Kyselka to generate a body of information concerning movement of the stars using the Bishop Museum Planetarium as a resource. How Thompson was eventually able to forge these vastly different approaches to knowledge into a cogent wayfinding system uniquely his own, and his rediscovery of an almost forgotten cultural heritage in the process, makes for a thrilling adventure story.
The Geography of the Ocean by Anne-Flore Laloë Pdf
Despite the fact that the vast majority of the earth’s surface is made up of oceans, there has been surprisingly little work by geographers which critically examines the ocean-space and our knowledge and perceptions of it. This book employs a broad conceptual and methodological framework to analyse specific events that have contributed to the production of geographical knowledge about the ocean. These include, but are not limited to, Christopher Columbus’ first transatlantic journey, the mapping of nonexistent islands, the establishment of transoceanic trade routes, the discovery of largescale water movements, the HMS Challenger expedition, the search for the elusive Terra Australis Incognita, the formulation of the theory of continental drift and the mapping of the seabed. Using a combination of original, empirical (archival, material and cartographic), and theoretical sources, this book uniquely brings together fascinating narratives throughout history to produce a representation and mapping of geographical oceanic knowledge. It questions how we know what we know about the oceans and how this knowledge is represented and mapped. The book then uses this representation and mapping as a way to coherently trace the evolution of oceanic spatial awareness. In recent years, particularly in historical geography, discovering and knowing the ocean-space has been a completely separate enterprise from discovering and colonising the lands beyond it. There has been such focus on studying colonised lands, yet the oceans between them have been neglected. This book gives the geographical ocean a voice to be acknowledged as a space where history, geography and indeed historical geography took place.
Water Worlds: Human Geographies of the Ocean by Kimberley Peters,Jon Anderson Pdf
Our world is a water world. Seventy percent of our planet consists of ocean. However, geography has traditionally overlooked this vital component of the earth's composition. The word 'geography' directly translates as 'earth writing' and in line with this definition the discipline has preoccupied itself with the study of terrestrial spaces of society and nature. This book challenges human geography's preoccupation with the terrestrial, investigating the terra incognita of the seas and oceans. Linking to new theoretical debates shaping the geographic discipline (such as affect, assemblage, emotion, hybridity and the more-than-human), this volume unlocks new knowledge concerning the human geographies of ocean space. The book casts adrift stable, bounded and fixed conceptions of space and advances geographical understanding based on the world as 'becoming', changing, mobile and processional. This ontology supports the notion that the oceans are not simply fluid in a literal way, but also in a conceptual sense, suggesting that the seas have their own fluid natures - their own capacities and agencies - which are co-fabricated with social and cultural life. This book features twelve chapters, authored by key academics contributing to this growing field of research. The book is divided into three sections, including an Introduction by the editors and a foreword by Prof. Philip E. Steinberg, the leading scholar in the field of maritime geographies. The first section of the book considers the ways in which different watery spaces from the Atlantic Ocean to the Mediterranean Sea have been conceptualized, theorized and ’known’ through metaphors, voyages of discovery and scientific endeavour. The second section examines how oceans are experienced; through various activities including driving on water, kayaking in water and diving under water. The final section explores the relations between human life and the nature of the sea as a material, mobile and more-than-human spa
The 4.4-billion-year history of the oceans and their role in Earth's climate system It has often been said that we know more about the moon than we do about our own oceans. In fact, we know a great deal more about the oceans than many people realize. Scientists know that our actions today are shaping the oceans and climate of tomorrow—and that if we continue to act recklessly, the consequences will be dire. Eelco Rohling traces the 4.4-billion-year history of Earth's oceans while also shedding light on the critical role they play in our planet's climate system. This timely and accessible book explores the close interrelationships of the oceans, climate, solid Earth processes, and life, using the context of Earth and ocean history to provide perspective on humankind's impacts on the health and habitability of our planet.
Author : J. A. Zalasiewicz,Mark Williams Publisher : Oxford University Press, USA Page : 315 pages File Size : 50,7 Mb Release : 2014 Category : Science ISBN : 9780199672882
Ocean Worlds by J. A. Zalasiewicz,Mark Williams Pdf
Traces the history and evolution of oceans on Earth as well as their importance and the changes wrought by humans that threaten all aspects of their existence, and looks beyond Earth to oceans on other planets.
"Books like this one help lead the way to a better climate future for all inhabitants of Mother Earth. We are all in this together!" — Jeff Bridges, Academy Award winner and environmentalist A little more than 70 percent of Planet Earth is ocean. So wouldn’t a better name for our global home be Planet Ocean? You may be surprised at just how closely YOU are connected to the ocean. Regardless of where you live, every breath you take and every drop of water you drink links you to the ocean. And because of this connection, the ocean’s health affects all of us. Dive in with author Patricia Newman and photographer Annie Crawley—visit the Coral Triangle near Indonesia, the Salish Sea in the Pacific Northwest, and the Arctic Ocean at the top of the world. Find out about problems including climate change, ocean acidification, and plastic pollution, and meet inspiring local people who are leading the way to reverse the ways in which humans have harmed the ocean. Planet Ocean shows us how to stop thinking of ourselves as existing separate from the ocean and how to start taking better care of this precious resource.
Tabitha is worried about a special visitor coming to her school. “She wanted to impress the Head Witch but sometimes, her spells went wrong.” When Tabitha comes up with a brainy idea, will she dazzle or disappoint? Find out in this fun story about magic and friendship. Download the full eBook and explore supporting teaching materials at www.twinkl.com/originals Join Twinkl Book Club to receive printed story books every half-term at www.twinkl.co.uk/book-club (UK only).
We Are the Ocean is a collection of essays, fiction, and poetry by Epeli Hau‘ofa, whose writing over the past three decades has consistently challenged prevailing notions about Oceania and prescriptions for its development. He highlights major problems confronted by the region and suggests alternative perspectives and ways in which its people might reorganize to relate effectively to the changing world. Hau‘ofa’s essays criss-cross Oceania, creating a navigator’s star chart of discussion and debate. Spurning the arcana of the intellectual establishments where he was schooled, Hau‘ofa has crafted a distinctive—often lyrical, at times angry—voice that speaks directly to the people of the region and the general reader. He conveys his thoughts from diverse standpoints: university-based analyst, essayist, satirist and humorist, and practical catalyst for creativity. According to Hau‘ofa, only through creative originality in all fields of endeavor can the people of Oceania hope to strengthen their capacity to engage the forces of globalization. “Our Sea of Islands,” “The Ocean in Us,” “Pasts to Remember,” and “Our Place Within,” all of which are included in this collection, outline some of Hau‘ofa’s ideas for the emergence of a stronger and freer Oceania. Throughout he expresses his concern with the environment and suggests that the most important role that the “people of the sea” can assume is as custodians of the Pacific, the vast area of the world’s largest body of water.
All life — whether on land or in the sea — depends on the oceans for two things: • Oxygen. Most of Earth’s oxygen is produced by phytoplankton in the sea. These humble, one-celled organisms, rather than the spectacular rain forests, are the true lungs of the planet. • Climate control. Our climate is regulated by the ocean’s currents, winds, and water-cycle activity. Sea Sick is the first book to examine the current state of the world’s oceans — the great unexamined ecological crisis of the planet — and the fact that we are altering everything about them; temperature, salinity, acidity, ice cover, volume, circulation, and, of course, the life within them. Alanna Mitchell joins the crews of leading scientists in nine of the global ocean’s hotspots to see firsthand what is really happening around the world. Whether it’s the impact of coral reef bleaching, the puzzle of the oxygen-less dead zones such as the one in the Gulf of Mexico, or the shocking implications of the changing Ph balance of the sea, Mitchell explains the science behind the story to create an engaging, accessible yet authoritative account.
Oceans: A Very Short Introduction by Dorrik Stow Pdf
The importance of the oceans to life on Earth cannot be overstated. Liquid water covers more than 70% of our planet's surface and, in past geological time, has spread over 85%. Life on Earth began in the oceans over 3.5 billion years ago and remained there for the great majority of that time. Today the seas still provide 99% of habitable living space, the largest repository of biomass, and holds the greatest number of undiscovered species on the planet. Our oceans are vital for the regulation of climate, and with global warming and decreasing land area, they have become increasingly important as the source of food, energy in the form of oil and gas, and for their mineral wealth. Oceans also form a key part of the biogeochemical cycles of carbon, nitrogen, and other elements critical to life. Nutrients in upwelling areas are spread by ocean currents, and the plankton of the seas supports a wealth of wildlife. In this Very Short Introduction Dorrik Stow analyses these most important components of our blue planet and considers their relationship with, and exploitation by, humans. He shows how the oceans are an essential resource to our overpopulated world, and discusses why exploration and greater scientific understanding of the oceans, their chemistry, and their mineral wealth are now a high priority. Stow also explores what we know of how oceans originate, and evolve and change; the shape of the seafloor and nature of its cover; the physical processes that stir the waters and mix such a rich chemical broth; and the inseparable link between oceans and climate. As polar ice melts and sea-levels rise, countless millions who have made their homes on low-lying lands close to the sea are threatened. As scientific exploration of the seas gathers pace, the new knowledge gained of the ocean-Earth systems and their interaction with the human environment is vital to our understanding of how we can preserve these ultimately fragile environments. ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.
The oceans may well be Earth's final frontier. These dark and sometimes mysterious waters cover 71 percent of the surface area of the globe and have yet to be fully explored, Under the waves, a watery world of frail splendor, foreboding creatures, and sights beyond imagination awaits. The Ocean Book will teach you about: Giant squid and other "monsters" of the seas Centuries of ocean exploration Hydrothermal vents The ingredients that make up the ocean Harnessing the ocean's energy Icebergs Coral reefs Ships, submarines, and other ocean vessels The major ocean currents El Nino, whirlpools, and hurricanes Harvesting the oceans' resources Whales, dolphins, fish, and other sea creatures Learning about the oceans and their hidden contents can be exciting and rewarding. The abundance and diversity of life, the wealth of resources, and the simple mysteries there have intrigued explorers and scientist for centuries. A better understanding of our oceans ensures careful conservation of their grandeur and beauty for future generations, and leads to a deeper respect for the delicate balance of life on planet Earth.
In The Empty Ocean, acclaimed author and artist Richard Ellis tells the story of our continued plunder of life in the sea and weighs the chances for its recovery. Through fascinating portraits of a wide array of creatures, he introduces us to the many forms of sea life that humans have fished, hunted, and collected over the centuries, from charismatic whales and dolphins to the lowly menhaden, from sea turtles to cod, tuna, and coral. Rich in history, anecdote, and surprising fact, Richard Ellis’s descriptions bring to life the natural history of the various species, the threats they face, and the losses they have suffered. Killing has occurred on a truly stunning scale, with extinction all too often the result, leaving a once-teeming ocean greatly depleted. But the author also finds instances of hope and resilience, of species that have begun to make remarkable comebacks when given the opportunity. Written with passion and grace, and illustrated with Richard Ellis’s own drawings, The Empty Ocean brings to a wide audience a compelling view of the damage we have caused to life in the sea and what we can do about it. "
