Examples of using Spawning stock in English and their translations into Swedish
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This corresponds with a severe decline of the spawning stock since 1970.
The spawning stock of sprat was estimated at 1 303 000 tonnes in 2017.
The herring model was dependent on cod spawning stock biomass and year-growth.
The spawning stock biomass at maximum sustainable yield is more sensitive to reproductive volume than year-growth.
With the introduction of the precautionary approach ICES has proposed"reference points" for fishing mortality and spawning stock biomass.
Furthermore, the appropriate harvest rate should be 30% of the spawning stock biomass each year,
In the absence of advice on spawning stock biomass or abundance reference points, action should be taken when scientific advice
the latest estimate of the spawning stock was 433 000 tonnes in 2017.
the current spawning stock biomass is less than 15% of what it was before fishing began.
In conjunction with the estimation of mortality rates, estimates of the biomass of mature fish(spawning stock biomass) and juvenile fish are also produced.
A consequence of this is the low number of spawning stock biomass estimates and of exploitation patterns for all the most important stocks. .
Rec.[06.05] also resulted in improved yield-per-recruit levels in comparison to the early 2000s as well as to a greater recruitment to the spawning stock biomass due to higher survival of juvenile fish.
A catch of 25,000 t could halt the decline of the spawning stock in the medium term, but spawning stock biomass is not expected to return to its estimated historic levels.
Fishing mortality for the eastern Baltic cod stock is also below the maximum sustainable yield(MSY), and its spawning stock has almost quadrupled since the plan has been in place.
expressed in tonnes of spawning stock biomass or abundance in numbers,
repetition of the situation where the spawning stock biomass is below the levels referred to in paragraph 1.
In recent years there has been an increase in the hake spawning stock biomass mostly due to exceptional environmental
There are clear relations between spawning stock and recruitment, as large number of spawners provide a better chance of good recruitment
It stems from the advice provided by the STECF that harvesting a constant proportion of the spawning stock biomass would provide for sustainable stock management.
The targets of the plan are to reach a spawning stock biomass of 35000 tonnes by 2015, equivalent to the precautionary biomass,
reached for Southern hake: the stocks must achieve a spawning stock biomass of 35 000 tonnes of hake for two consecutive years or reach this target within 10 years.
maintain fishing mortalities and spawning stock biomasses within limits determined on the basis of scientific analyses,
For the stocks concerned these reference points are expressed as a spawning stock biomass, which is obtained from the latest benchmarking exercise conducted by ICES.
The ICES advice rule indicates that, when spawning stock biomass is below the minimum spawning stock biomass reference point(MSY Btrigger), F is to be reduced to a value which does not exceed an upper limit equal to the FMSY point value multiplied by the spawning stock biomass in the TAC year divided by MSY Btrigger.
reference points for fishing mortality and for spawning stock bio-mass proposed by the International Council for the Exploration of the Sea(ICES)
High fishing pressure over long time has lead to that the spawning stocks for many ground fish stocks are at critical levels
When predation from seals is added in mortality and high environmental factors occurs the spawning stock biomass would be 50% compared to the spawning stock biomass at high environmental effects without seal predation.
Fishing opportunities shall in any event be fixed in such a way as to ensure that there is less than a 5% probability of the spawning stock biomass falling below the limit spawning stock biomass reference point(Blim) set out in particular in Annex II, column B.