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1
How to Make Fish Stock
How to Make Fish Stock
::2012/07/08::
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2
How To Make Fish Stock The Easy Way
How To Make Fish Stock The Easy Way
::2013/03/04::
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3
FishStock - Part 1
FishStock - Part 1
::2010/04/05::
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4
Making Fish Stock
Making Fish Stock
::2010/10/13::
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5
Use Your Head ( your fish head ) ! Recipes, Dishes, Salad, and Soup Stock - What to Make
Use Your Head ( your fish head ) ! Recipes, Dishes, Salad, and Soup Stock - What to Make
::2012/10/16::
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6
Stocking the lake with 1800 pounds of rainbow trout
Stocking the lake with 1800 pounds of rainbow trout
::2009/06/06::
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7
Fish Stock Recipe
Fish Stock Recipe
::2013/06/26::
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8
Easy Fish Stock Recipe | Hugh Fearnley-Whittingstall
Easy Fish Stock Recipe | Hugh Fearnley-Whittingstall
::2012/11/27::
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9
Making Fish Stock
Making Fish Stock
::2009/02/12::
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10
น้ำสต๊อกปลา Fish Stock
น้ำสต๊อกปลา Fish Stock
::2014/06/09::
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11
How to make fish stock | Recipe video
How to make fish stock | Recipe video
::2014/03/28::
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12
How to make Fish Stock
How to make Fish Stock
::2013/09/13::
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13
Dashi Stock Recipe - Original Japanese Fish Stock
Dashi Stock Recipe - Original Japanese Fish Stock
::2013/10/13::
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14
Fish Recipes : Recipe for Making Fish Stock Part 1
Fish Recipes : Recipe for Making Fish Stock Part 1
::2007/09/11::
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15
Knorr Fish Stock Pot with Marco Pierre White | Knorr TV Advert
Knorr Fish Stock Pot with Marco Pierre White | Knorr TV Advert
::2013/06/19::
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16
The ABCs of Stock Assessments
The ABCs of Stock Assessments
::2013/06/14::
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17
How To Make Fish Sauce Recipes - Making Fish Stock #1
How To Make Fish Sauce Recipes - Making Fish Stock #1
::2011/06/30::
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18
Fish Stock Recipe
Fish Stock Recipe
::2011/01/28::
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19
How to make fish stock
How to make fish stock
::2013/06/23::
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20
Stocking Your Brand New Pond
Stocking Your Brand New Pond
::2010/08/24::
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21
Fish Stock - Part 2
Fish Stock - Part 2
::2010/04/05::
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22
How to make fish stock
How to make fish stock
::2012/09/23::
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23
Fish Stock recipe
Fish Stock recipe
::2010/04/05::
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24
Qld. Arrowroot - Canna & Yacon Soup using Red Emperor Fish Stock.
Qld. Arrowroot - Canna & Yacon Soup using Red Emperor Fish Stock.
::2014/07/12::
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25
Quamichan Fish Stock -- Helping Hand
Quamichan Fish Stock -- Helping Hand
::2010/11/18::
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26
Fish stock at Pier Aquatics - April 2013
Fish stock at Pier Aquatics - April 2013
::2013/05/27::
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27
2048: Prediction for Global Fish Stock Collapse
2048: Prediction for Global Fish Stock Collapse
::2010/02/23::
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28
Big Rock Pond Fish Stock
Big Rock Pond Fish Stock
::2008/01/07::
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29
Fish Stock
Fish Stock
::2014/05/23::
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30
HOW TO: Make Fish Stock
HOW TO: Make Fish Stock
::2014/02/20::
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31
Making a 30-minute fish stock with Chris Hastings and All-Clad
Making a 30-minute fish stock with Chris Hastings and All-Clad
::2013/06/07::
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32
Fish Recipes : Recipe for Making Fish Stock Part 2
Fish Recipes : Recipe for Making Fish Stock Part 2
::2007/09/11::
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33
Fishstock 2010, Mad Dog McRea
Fishstock 2010, Mad Dog McRea
::2010/09/15::
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34
How to cook with Stock Fish
How to cook with Stock Fish
::2013/02/07::
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35
Making the perfect fish stock - getting the most out of your fish.
Making the perfect fish stock - getting the most out of your fish.
::2012/02/17::
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36
Devonbird Live At Fishstock "Jig Medley"
Devonbird Live At Fishstock "Jig Medley"
::2012/09/30::
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37
Fish Recipes : Recipe for Making Fish Stock Part 4
Fish Recipes : Recipe for Making Fish Stock Part 4
::2007/09/11::
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38
Fish Recipes : Recipe for Making Fish Stock Part 6
Fish Recipes : Recipe for Making Fish Stock Part 6
::2007/09/11::
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39
How To Make Great Fish Sauce Recipes - Making Fish Stock #2
How To Make Great Fish Sauce Recipes - Making Fish Stock #2
::2011/06/30::
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40
The Roobs -Teenage Dirtbag. Brixham Fishstock 2011
The Roobs -Teenage Dirtbag. Brixham Fishstock 2011
::2011/12/27::
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41
how to cook prepare fish stock
how to cook prepare fish stock
::2009/07/27::
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42
Final Fishstock Concert, Part Two of 3
Final Fishstock Concert, Part Two of 3
::2011/09/11::
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43
Uganda fish stock dwindles
Uganda fish stock dwindles
::2012/03/20::
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44
Eric Lewis & Friends at Fishstock: Freeborn Man, Columbus Stockade
Eric Lewis & Friends at Fishstock: Freeborn Man, Columbus Stockade
::2011/09/06::
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45
Fish Recipes : Recipe for Making Fish Stock Part 5
Fish Recipes : Recipe for Making Fish Stock Part 5
::2007/09/11::
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46
FISHSTOCK 2014 AWARDS
FISHSTOCK 2014 AWARDS
::2014/05/26::
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47
Live Fish Stock Tilapia Blue
Live Fish Stock Tilapia Blue
::2012/11/19::
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48
Fish Recipes : Recipe for Making Fish Stock Part 7
Fish Recipes : Recipe for Making Fish Stock Part 7
::2007/11/09::
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49
น้ำสต๊อกปลา Fish Fumet (Fish Stock)
น้ำสต๊อกปลา Fish Fumet (Fish Stock)
::2011/07/10::
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Fish Recipes : Recipe for Making Fish Stock Part 3
Fish Recipes : Recipe for Making Fish Stock Part 3
::2007/09/11::
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From Wikipedia, the free encyclopedia
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Not to be confused with stockfish. For other uses, see Fish stock (disambiguation)

Fish stocks are subpopulations of a particular species of fish, for which intrinsic parameters (growth, recruitment, mortality and fishing mortality) are traditionally regarded as the significant factors determining the stock's population dynamics, while extrinsic factors (immigration and emigration) are traditionally ignored.

The stock concept[edit]

All species have geographic limits to their distribution, which are determined by their tolerance to environmental conditions, and their ability to compete successfully with other species. In marine environments this may be less evident than on land because there are fewer topographical boundaries, however, discontinuities still exist, produced for example by mesoscale and sub-mesoscale circulations that minimize long-distance dispersal of fish larvae .

For fish, it is rare for an individual to reproduce randomly with all other individuals of that species within its biological range. There is a tendency to form a structured series of discrete populations which have a degree of reproductive isolation from each other in space, in time, or in both. This isolation is reflected in the development between sub-populations of genetic differences, morphological variations and exposure to different chemical regimes and parasitic species. Sub-populations also respond to fishing in such a way that fishing on one population appears to have no effect on the population dynamics of a neighbouring population.

The currently accepted definition of a stock in fisheries science, is that of Begg et al. (1999), “…[a “stock”] describes characteristics of semi-discrete groups of fish with some definable attributes which are of interest to fishery managers.”.

Stock identification is a field of fisheries science which aims to identify these subpopulations, based on a number of techniques.

Straddling stock[edit]

The high seas, or international waters, are highlighted in blue

The United Nations defines straddling stocks as "stocks of fish such as pollock, which migrate between, or occur in both, the economic exclusion zone (EEZ) of one or more states and the high seas".[1] Sovereign responsibility must be worked out in collaboration with neighbouring coastal states and fishing entities. Usually this is done through the medium of an intergovernmental regional organisation set up for the purpose of coordinating the management of that stock.

Straddling stocks are usually pelagic, rather than demersal. Demersal species move less than pelagic species, since they tend to relate to bottom topography. Pelagic species are more mobile, their movements influenced by ocean temperatures and the availability of zooplankton as food. Example pelagic fish are capelin, herring, whiting, mackerel and redfish, There are, however, a few demersal species that are straddling, such as the Greenland halibut migrates in feeding/spawning migrations to Greenland in the west and to the Faeroes in the east.[2]

Straddling stock can be compared with transboundary stock. Straddling stock range both within an EEZ as well as in the high seas. Transboundary stock range in the EEZs of at least two countries. A stock can be both transboundary and straddling.[3]

Stock assessment[edit]

In fisheries science and ecology, stock assessment is an important tool in fisheries management.

In particular, to ensure continued, healthy, fish stocks, measurements of the Spawning Stock Biomass (the stock population capable of reproducing) allows sensible conservation strategies to be developed and maintained through the application of sustainable fishing quotas.[4]

Stock fluctuations[edit]

The stocks for individual marine species can "boom and bust" in linked and compensatory ways. For example, in billfish longline fisheries, the Atlantic catch of blue marlin declined in the 1960s. This was accompanied by an increase in sailfish catch. The sailfish catch then declined from the end of the 1970s to the end of the 1980s, compensated by an increase in swordfish catch. As a result, the overall billfish catch remained fairly stable. At Georges Bank, a decline in cod during the 1960s was accompanied by a rise in flatfish, and more recently, with the collapse of the predatory Atlantic cod, lobster catches in Maine have boomed.[5]

Notes[edit]

See also[edit]

References[edit]

External links[edit]

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