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Introduction

Portions of this book were finished in 2015. Had this chapter been written five years earlier, the general tone regarding fisheries would have been decidedly pessimistic: fisheries worldwide were being rapidly depleted, in spite of conservation efforts discussed below.

However, thus far into the 21st century the world has benefitted from very rapid growth of fish farming in the U.S., Nordic Nations, China, Thailand, Malaysia and Chile. Modern fish farming includes saltwater varieties popular in the diets of people in both developed and emerging nations. If the fish farming industry continues to mature and spread to more countries, future editions of this book may contain a very short chapter on fisheries. Then, what we now view as natural capital will be essentially manufactured capital. It is still too early to celebrate this achievement. Farmed fish may prove to be susceptible to diseases not common to fish in the wild. Fish farming also involves some environmental risks. And some farmed fish do not satisfy human palates as well as the same fish caught in the wild. For example, this was apparently the case for much of farmed salmon from the U.S. and the Nordic countries early on: the farmed fish carried a distinctly different taste. However, the industry seems to believe that this problem will disappear as time passes.

For the time being, at least, the rapid rise of fish farming has materially helped in reduced depletion and stress on natural fisheries. In any case, the world’s natural fisheries remain as an important source of natural capital for emerging and developed nations and will be treated as such. (Details on the farmed fish industry are provided later on in this Chapter).

Significance of fisheries

Fisheries involve issues of resource sustainability that have been largely overlooked for far too long. Abuse of this source of natural capital has worldwide implications, especially as fish pertain to the diet and employment opportunities of poor people in poor nations.

World trade in seafood of all kinds totaled $136 billion in 2013 excluding farm-grown fish. "Unchartered Waters”, Financial Times, Nov. 21, 2014. Worldwide, in 2006 200 million people were employed in fisheries. In poor countries almost 95% are employed in small scale fishing. Worldwide, 2.9 billion people depended on fish for more than 14% of their protein. 20% of the world’s people, mostly in the poorest nations rely on fish as their primary source of protein.

As has been the case for water resources, awareness of fishery resources issues only began to become widespread after 1950. Why? In 1950 only 50% of the world’s fisheries were fully exploited. By 1980, this figure rose to 60%, and by 2008, 80% of fish stocks had been fully exploited. The population of certain highly prized fish species has fallen precipitously. For example the number of Pacific Bluefin tuna in 2012 was but one fourth that of 1995, and one seventh that of the mid-sixties. By 2010 the situation for bluefins had become serious.

Questions & Answers

where we get a research paper on Nano chemistry....?
Maira Reply
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
Google
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
revolt
da
Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
Jyoti Reply
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
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Source:  OpenStax, Economic development for the 21st century. OpenStax CNX. Jun 05, 2015 Download for free at http://legacy.cnx.org/content/col11747/1.12
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