Estimating Maximum Fishing Depth of Long-line Gear with Chemical Sounding Tubes PDF Download
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Author: Joseph John Graham
Publisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 24
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Book Description
Author: Joseph John Graham
Publisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 24
Get Book Here
Book Description
Author: Joseph J. Graham
Publisher: Forgotten Books
ISBN: 9781333899561
Category : Technology & Engineering
Languages : en
Pages : 26
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Book Description
Excerpt from Estimating Maximum Fishing Depth of Longline Gear With Chemical Sounding Tubes Figure 7.-the theoretical relation of the distance between buoys to the depths of vari ous hooks on a basket of albacore longline. Droppers have been omitted. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: L. Carter
Publisher: UNEP/Earthprint
ISBN: 9780956338723
Category : Political Science
Languages : en
Pages : 68
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Book Description
There are many things and services in our everyday life that we take for granted, and telecommunications is one of them. We surf the internet, send emails to friends and colleagues abroad, talk to family members in foreign countries over the phone, book airline seats and make banking transactions without actually realizing and appreciating the sophisticated technology that enables us to do so. This report covers the history and nature of cables, their special status in international law, their interaction with the environment and other ocean users and, finally, the challenges of the future. It is an evidence-based synopsis that aims to improve the quality and availability of information to enhance understanding and cooperation between all stakeholders. UNEP-WCMC in collaboration with the International Cable Protection Committee and UNEP has prepared this new report to provide an objective, factual description of the sub-marine cable industry and the interaction of submarine telecommunications (which route 95% of all international communications traffic) with the marine environment. This important report seeks to focus and guide deliberations and decision making on the wise conservation and protection of the oceans in concert with their sustainable management and use.
Author: James R. Spotila
Publisher: JHU Press
ISBN: 142141709X
Category : Science
Languages : en
Pages : 246
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Book Description
The most comprehensive book ever written on leatherback sea turtles. Weighing as much as 2,000 pounds and reaching lengths of over seven feet, leatherback turtles are the world’s largest reptile. These unusual sea turtles have a thick, pliable shell that helps them to withstand great depths—they can swim more than one thousand meters below the surface in search of food. And what food source sustains these goliaths? Their diet consists almost exclusively of jellyfish, a meal they crisscross the oceans to find. Leatherbacks have been declining in recent decades, and some predict they will be gone by the end of this century. Why? Because of two primary factors: human redevelopment of nesting beaches and commercial fishing. There are only twenty-nine index beaches in the world where these turtles nest, and there is immense pressure to develop most of them into homes or resorts. At the same time, longline and gill net fisheries continue to overwhelm waters frequented by leatherbacks. In The Leatherback Turtle, James R. Spotila and Pilar Santidrián Tomillo bring together the world’s leading experts to produce a volume that reveals the biology of the leatherback while putting a spotlight on the conservation problems and solutions related to the species. The book leaves us with options: embark on the conservation strategy laid out within its pages and save one of nature’s most splendid creations, or watch yet another magnificent species disappear.
Author: Caterina Batello
Publisher: Food & Agriculture Org.
ISBN: 9789251050644
Category : Business & Economics
Languages : en
Pages : 328
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Book Description
This art book contains over 350 color photographs by Marzio Marzot, documenting information on traditional food production systems, scientific details and notes from a journey through one of the world' s outstanding region: the Lake Chad Basin in Africa. It provides an insight into the life and customs of the local farmers, fishermen and pastoralists who foster, maintain and utilize biodiversity in their traditional agricultural systems, thereby deploying the knowledge and techniques that they have accumulated over many centuries. FAO promotes the sharing of experiences and awareness related to the role of rural people in conserving and sustainably using agricultural biodiversity. Building on the local knowledge and social organization of farmers is indispensable. The images in this book are a tribute to the knowledge and work of farmers and their care for the land.
Author: Gunter R. Seckel
Publisher:
ISBN:
Category : Oceanography
Languages : en
Pages : 260
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Book Description
Author: Tønnes Bekker-Nielsen
Publisher:
ISBN:
Category : Classical antiquities
Languages : en
Pages : 456
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Book Description
The fishing technology of the Classical world has so far received little systematic attention, neither from historians nor from archaeologists. In this volume, the reader will find a series of studies offering a wide range of approaches to the topic of ancient fishing technology, based on detailed studies of the available literary, archaeological, pictorial and icthyological evidence as well as on diachronic comparisons with fishing techniques of the Early Medieval and Modern periods. The articles included in the present volume are based on the authors' presentations at an international, interdisciplinary workshop in Cadiz, covering the history of fishing from Pre-history to the present day, with a special emphasis on the Roman period.
Author: Benjamin Cattermoul
Publisher: Food & Agriculture Organization of the UN (FAO)
ISBN:
Category : Nature
Languages : en
Pages : 180
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Book Description
"The Fisheries and Aquaculture Emergency Response Guidance (the Guidance) aims to help to save the lives and livelihoods of people in the fisheries and aquaculture sector who have been affected by disasters and humanitarian emergencies. It aims to do this by improving the quality of the design, implementation and assessment of interventions in fisheries and aquaculture in the wake of disasters. It draws on best practice and experience in responding to disasters that have affected fisheries and aquaculture and in supporting people working in the sector to rebuild their livelihoods."--Publisher's description.
Author: Jeremy B.C. Jackson
Publisher: Island Press
ISBN: 161091029X
Category : Nature
Languages : en
Pages : 309
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Book Description
Shifting Baselines explores the real-world implications of a groundbreaking idea: we must understand the oceans of the past to protect the oceans of the future. In 1995, acclaimed marine biologist Daniel Pauly coined the term "shifting baselines" to describe a phenomenon of lowered expectations, in which each generation regards a progressively poorer natural world as normal. This seminal volume expands on Pauly's work, showing how skewed visions of the past have led to disastrous marine policies and why historical perspective is critical to revitalize fisheries and ecosystems. Edited by marine ecologists Jeremy Jackson and Enric Sala, and historian Karen Alexander, the book brings together knowledge from disparate disciplines to paint a more realistic picture of past fisheries. The authors use case studies on the cod fishery and the connection between sardine and anchovy populations, among others, to explain various methods for studying historic trends and the intricate relationships between species. Subsequent chapters offer recommendations about both specific research methods and effective management. This practical information is framed by inspiring essays by Carl Safina and Randy Olson on a personal experience of shifting baselines and the importance of human stories in describing this phenomenon to a broad public. While each contributor brings a different expertise to bear, all agree on the importance of historical perspective for effective fisheries management. Readers, from students to professionals, will benefit enormously from this informed hindsight.
Author: Carl B. Schreck
Publisher: Academic Press
ISBN: 0128027371
Category : Science
Languages : en
Pages : 604
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Book Description
Biology of Stress in Fish: Fish Physiology provides a general understanding on the topic of stress biology, including most of the recent advances in the field. The book starts with a general discussion of stress, providing answers to issues such as its definition, the nature of the physiological stress response, and the factors that affect the stress response. It also considers the biotic and abiotic factors that cause variation in the stress response, how the stress response is generated and controlled, its effect on physiological and organismic function and performance, and applied assessment of stress, animal welfare, and stress as related to model species. - Provides the definitive reference on stress in fish as written by world-renowned experts in the field - Includes the most recent advances and up-to-date thinking about the causes of stress in fish, their implications, and how to minimize the negative effects - Considers the biotic and abiotic factors that cause variation in the stress response
