Add to ORKGA declinining trend in the size of the spawning stock of North Sea mackerel is described by data obtained from egg surveys. During the period 1973-1980 the spawning stock size was reduced by 60-70%. A similar stock development has been demonstrated by VPA of catch data and on tagging results. An egg production curve for 1980 based on three egg surveys in the North Sea combined with daily sampling from a fixed position within the spawning area is given. Attempts are made to estimate the size of the spawning stock from the egg production curve and data published on fecundity
Egg surveys are used worldwide for the estimation of spawning stock biomass (SSB) of small pelagic f...
The present study contributes to a better understanding of the daily spawning dynamics of southern N...
Every three years an international North Sea survey is carried out by two European institutes, Insti...
A declinining trend in the size of the spawning stock of North Sea mackerel is described by data obt...
During the period 22 May to 17 July the spawning area of North Sea mackerel was investigated by res...
During the period 5 April to 28 July 1988 the spawning areas of North Sea mackerel and horse macker...
The distribution of mackerel eggs in the North Sea have been studied several years to estimate the ...
During the period 12 March to 20 July 1990 the spawning area of the North Sea mackerel was investig...
The intensity and duration of the spawning of mackerel (Scomber scombrus L.) was studied by daily pl...
The latest years, it is evident that most of the mackerel present in the North Sea belongs to the W...
This paper presents a preliminary analysis of the fecundity-length relationship of the North Sea ma...
We present a unique view of mackerel (Scomber scombrus) in the North Sea based on a new time series ...
<p>Continental shelf marked in grey (bottom depth <250 m). Spawning areas indicated by dots. Each do...
We present a unique view of mackerel (Scomber scombrus) in the North Sea based on a new time series ...
<p>Continental shelf marked in grey (bottom depth <250 m). North Sea and western mackerel spawning a...
Egg surveys are used worldwide for the estimation of spawning stock biomass (SSB) of small pelagic f...
The present study contributes to a better understanding of the daily spawning dynamics of southern N...
Every three years an international North Sea survey is carried out by two European institutes, Insti...
A declinining trend in the size of the spawning stock of North Sea mackerel is described by data obt...
During the period 22 May to 17 July the spawning area of North Sea mackerel was investigated by res...
During the period 5 April to 28 July 1988 the spawning areas of North Sea mackerel and horse macker...
The distribution of mackerel eggs in the North Sea have been studied several years to estimate the ...
During the period 12 March to 20 July 1990 the spawning area of the North Sea mackerel was investig...
The intensity and duration of the spawning of mackerel (Scomber scombrus L.) was studied by daily pl...
The latest years, it is evident that most of the mackerel present in the North Sea belongs to the W...
This paper presents a preliminary analysis of the fecundity-length relationship of the North Sea ma...
We present a unique view of mackerel (Scomber scombrus) in the North Sea based on a new time series ...
<p>Continental shelf marked in grey (bottom depth <250 m). Spawning areas indicated by dots. Each do...
We present a unique view of mackerel (Scomber scombrus) in the North Sea based on a new time series ...
<p>Continental shelf marked in grey (bottom depth <250 m). North Sea and western mackerel spawning a...
Egg surveys are used worldwide for the estimation of spawning stock biomass (SSB) of small pelagic f...
The present study contributes to a better understanding of the daily spawning dynamics of southern N...
Every three years an international North Sea survey is carried out by two European institutes, Insti...