Chapter 19
The Blackspot Seabream Fishery
in the Strait of Gibraltar: Lessons
and Future Perspectives of Shared Marine
Resource
Juan Gil-Herrera, Juan Carlos Gutiérrez-Estrada, Said Benchoucha,
José Luis Pérez-Gil, Víctor Sanz-Fernández, Sana el Arraf,
Candelaria Burgos, Mohammed Malouli Idrissi, and Carlos Farias
19.1 Introduction
Fish stocks commercially exploited are components of ocean ecosystems that are
extremely complex to manage and plan. As a consequence of that, the abundance of
the resources at a future time is related to a multitude of intrinsic and extracompensatory and variable in time factors, frequently unknown and generally
associated with a very high level of uncertainty, which greatly hinders the projections of abundance towards the near future. Among the intrinsic factors that
influence the variation in abundance of a target species are their biological characteristics such as growth capacity, type of reproduction, natural mortality, and
resilience to exploitation, among others (Clark and Marr 1955; Dragesund et al.
1980; Zhang et al. 2004). All these intrinsic factors are strongly influenced by a wide
variety of external factors with different nature such as anthropogenic (type and level
of exploitation), natural (environmental variability) (Kennedy 1990; Bigelow et al.
1999; Lehodey et al. 2006; Jghab et al. 2019), and geopolitical, which strongly
condition the stability and sustainability of fish communities.
J. Gil-Herrera · C. Burgos · C. Farias
Instituto Español de Oceanografía, Centro Oceanográfico de Cádiz, Cádiz, Spain
J. C. Gutiérrez-Estrada (*) · V. Sanz-Fernández
Dpto. Ciencias Agroforestales, Universidad de Huelva, Huelva, Spain
e-mail: juanc@uhu.es
S. Benchoucha · S. el Arraf · M. Malouli Idrissi
Institut National de Recherche Halieutique, Casablanca, Morocco
J. L. Pérez-Gil
Instituto Español de Oceanografía, Centro Oceanográfico de Málaga, Fuengirola (Málaga),
Spain
© Springer Nature Switzerland AG 2021
J. C. Báez et al. (eds.), Alboran Sea - Ecosystems and Marine Resources,
https://doi.org/10.1007/978-3-030-65516-7_19
629
The Blackspot Seabream Fishery
in the Strait of Gibraltar: Lessons
and Future Perspectives of Shared Marine
Resource
Juan Gil-Herrera, Juan Carlos Gutiérrez-Estrada, Said Benchoucha,
José Luis Pérez-Gil, Víctor Sanz-Fernández, Sana el Arraf,
Candelaria Burgos, Mohammed Malouli Idrissi, and Carlos Farias
19.1 Introduction
Fish stocks commercially exploited are components of ocean ecosystems that are
extremely complex to manage and plan. As a consequence of that, the abundance of
the resources at a future time is related to a multitude of intrinsic and extracompensatory and variable in time factors, frequently unknown and generally
associated with a very high level of uncertainty, which greatly hinders the projections of abundance towards the near future. Among the intrinsic factors that
influence the variation in abundance of a target species are their biological characteristics such as growth capacity, type of reproduction, natural mortality, and
resilience to exploitation, among others (Clark and Marr 1955; Dragesund et al.
1980; Zhang et al. 2004). All these intrinsic factors are strongly influenced by a wide
variety of external factors with different nature such as anthropogenic (type and level
of exploitation), natural (environmental variability) (Kennedy 1990; Bigelow et al.
1999; Lehodey et al. 2006; Jghab et al. 2019), and geopolitical, which strongly
condition the stability and sustainability of fish communities.
J. Gil-Herrera · C. Burgos · C. Farias
Instituto Español de Oceanografía, Centro Oceanográfico de Cádiz, Cádiz, Spain
J. C. Gutiérrez-Estrada (*) · V. Sanz-Fernández
Dpto. Ciencias Agroforestales, Universidad de Huelva, Huelva, Spain
e-mail: juanc@uhu.es
S. Benchoucha · S. el Arraf · M. Malouli Idrissi
Institut National de Recherche Halieutique, Casablanca, Morocco
J. L. Pérez-Gil
Instituto Español de Oceanografía, Centro Oceanográfico de Málaga, Fuengirola (Málaga),
Spain
© Springer Nature Switzerland AG 2021
J. C. Báez et al. (eds.), Alboran Sea - Ecosystems and Marine Resources,
https://doi.org/10.1007/978-3-030-65516-7_19
629