From an environmental point of view, the oceanographic conditions in which the
biological parameters of the Blackspot Seabream population were obtained
(Table 19.3) are conditioned by an oceanic current scheme that links the Atlantic
Ocean with the Mediterranean Sea. The Strait of Gibraltar is characterized by an
interchange of water masses with different temperature and salinity properties
between the Mediterranean Sea and the Atlantic Ocean with an inward flow from
the Atlantic Ocean which moves at a faster velocity in relation to the outward flow
from the Mediterranean Sea in the bottom (Parrilla et al. 1986; García-Lafuente and
Vargas 2000, Vargas-Yáñez et al., this book).
Fig. 19.3 Average sea temperature anomalies (a) and salinity anomalies (b) between 1983 and
2016 for a depth range between 0 and 500 m in the Strait of Gibraltar. For each variable, the average
anomalies above and below one, two, and three times the standard deviation (σ) recorded for
different depth are shown. Raw data has been obtained from Simple Ocean Data Assimilation
(SODA) v 3.3.1 reanalysis data set (http://www.atmos.umd.edu/~ocean)
19 The Blackspot Seabream Fishery in the Strait of Gibraltar: Lessons and. . .
637
biological parameters of the Blackspot Seabream population were obtained
(Table 19.3) are conditioned by an oceanic current scheme that links the Atlantic
Ocean with the Mediterranean Sea. The Strait of Gibraltar is characterized by an
interchange of water masses with different temperature and salinity properties
between the Mediterranean Sea and the Atlantic Ocean with an inward flow from
the Atlantic Ocean which moves at a faster velocity in relation to the outward flow
from the Mediterranean Sea in the bottom (Parrilla et al. 1986; García-Lafuente and
Vargas 2000, Vargas-Yáñez et al., this book).
Fig. 19.3 Average sea temperature anomalies (a) and salinity anomalies (b) between 1983 and
2016 for a depth range between 0 and 500 m in the Strait of Gibraltar. For each variable, the average
anomalies above and below one, two, and three times the standard deviation (σ) recorded for
different depth are shown. Raw data has been obtained from Simple Ocean Data Assimilation
(SODA) v 3.3.1 reanalysis data set (http://www.atmos.umd.edu/~ocean)
19 The Blackspot Seabream Fishery in the Strait of Gibraltar: Lessons and. . .
637