A Growing Population in a Shrinking World

I remember reading years ago that a landowner wanted to stock a pond, which had no fish, with carp, that magnificent specimen of European fish which grows slowly and very large, and can easily grow to be large enough to feed a big family for several days. In a normal eco system carp in Europe will slowly grow to more than 30 pounds in weight. The fish is suited to ponds because it can survive low temperatures and low oxygen water.

When the landowner decided to stock his pond he did not consult experts but simply put a whole host of carp roe into the pond and protected the pond from birds and other predators. The result was that he had a huge quantity of carp, but carp that refused to grow. They were all tiny. The carp had decided that there was insufficient food for them to grow normally so they grew hardly at all. The carp became midget carp.

It seems that in the world today many species are now becoming smaller, in a response to the environmental conditions that apply. The response is thought to be a reaction to climate change and follows fundamental ways of behaving that are well known reactions in ecology. The changing climate creates a change in animal metabolism.

The effect of this trend on humanity remains to be seen. The trend will lead to loss of biodiversity, which will not benefit us, and may, in species in our direct food chain shrink, may lead to a loss of protein available to a growing number of people in a world where organisms are slowly but surely shrinking.


One Response

  1. Darwin might have a few things to say here I think, the many species of roe the fish farmer added to the pond may well have been a result of the survival of the smartest and fittest fishes, this scenario is nothing like the human immediate enviornment whatsoever, modern man’s destiny lies mostly in his own hands not natures, letts come back to this one later.

    In the dinosaurs era the gravity was thought to be much weaker and the days much shorter due to a smaller planet, which certain latundinal corals growth rings indicate 19 and 21 hour days and to get where we are today the earth has grown larger very slowly’ its is this expansion that drives one plate against and under other and gravity stalling the overall progress, as our natural magnetic field wanes we grow a little further and faster.

    The Mayans worked out a year at 360 days in their era, so we enlarged along with a population once we also became smarter.

    Like many fossile remains show, life extended much further north than is possible today, if those wilderness areas grow warmer and habitable the land and nature which has locked away the neutrients in fallow for so long will be viable once again and the planet will seem smaller place again.

    There is still going to be plenty of land spare and people have always moved, if the Norse could be self suffifient in Greenland and store enough food for the frozen solid winters then we will again.

    What we really should be concerned with is what happens when we are without borders and food is non longer available due to the seasons becoming too cold to grow enough to sore the ripened harvests, this is a far more dire scenaio for northerners.

    We did however survived the mini ice age last time we will again be it colder.

    The answer to the fish pond conundrum is a simple case of ovestocking an area and the species not being able to move about, what remains in that pond is what can remain.
    Stocking a virgin pond is like trying to plant an echo system you simply cannot do it like nature does, this man is totally ignoring and the damages we incur we will definately suffer greatly for in the future.

    In a healthy colony less can definately be more and nature and wildlife adapts accordingly, nature has been doing this for millions of years and always overcomes it and so should we but there is control and money to be made.

    Nature doesn’t do money and still survives, best time on earth for man = The Bronze Age, using solar power for everything, so where did we go wrong.

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