M. Nazaret Carrasco Henarejos

The common octopus, Octopus vulgaris, is a very important demersal fishery resource targeted, among other fleets, by freezer bottom-trawlers in the Mauritanian Economic Exclusive Zone (MEEZ). From August 2010 to September 2011, a total of 1696 octopuses caught in the MEEZ where analysed. Many organisms trapped into the octopuses' mantle were found...

Figure 1 of the paper 'Taxonomic Diversity Hidden Inside the Mantle of Octopus vulgaris: Valuable Source of Information', with high resolution

Sardinella aurita has become an important source of fish protein-intake in NW African countries, where one stock is considered from Morocco to south Senegal, performing seasonal reproductive migrations along the coast. Although data are limited for the fisheries involved and for life-history knowledge of the species in the area, a precautionary app...

Despite the increase of literature on seabird plastic ingestion in recent years, few studies have assessed how plastic loads vary according to different sampling methods. Most studies use necropsies of seabirds with a natural cause of death, e.g. beached or predated, to determine plastic loads and monitor marine debris. Sampling naturally dead seab...

Most of the stocks exploited by artisanal fisheries remain unassessed and they represent an actual challenge for managers. Recently, small pelagic resources from the Canary Islands have been included among the focus stocks to be assessed in the CECAF framework. In the Canary Islands, small pelagic fish are exploited almost entirely by the artisana...

From January 2010 to September 2011, a total of 4044 Octopus vulgaris (2554 males and 1490 females) caught in Mauritanian waters were analyzed, and some biological aspects were addressed based on data from commercial catches. Dorsal Mantle Length (DML) – Body Weight (BW) relationship was obtained (BW=0.36·DML3.05; R2=0.86). Males outnumbered female...

eighteen Spanish freezing trawlers targeted to cephalopods (which operated in Mauritanian waters showed at map) kept weekly samples of selected octopuses. Every specimen was labeled individually with the catch date, and conserved frozen. A total of 4044 defrosted octopuses (2554 males and 1490 females) were analyzed. Photo by A.L. Godar Moreira Eve...

Age estimation of the cephalopod Octopus vulgaris by using beaks has improved in recent years, but maximum age and longevity in the wild have not been confirmed due to the low availability of senescent wild octopuses. In this study, a beak analysis of lateral wall surfaces (LWS) from 20 spent specimens confirmed the 1-year lifecycle of the species...

Beaks have been used for ageing cephalopods, mainly in octopods where statoliths are not suitable for ageing. Recently it has been validated the daily deposition of beak increments in Octopus vulgaris (Cuvier, 1797) both, in the internal lateral wall surfaces (LWS) (Canali et al., 2011; Perales-Raya et al., under review) and also in the rostrum sag...

The 30% of the catches off Mauritanian waters carried obtained by the European industrial pelagic freezer trawl fleet are landed in a Spanish port (Las Palmas de Gran Canaria, Canary Islands). The activity of this fleet is targeted to catch small pelagic species such as sardine (Sardina pilchardus (Walbaum, 1792)), round and flat sardinella (Sardin...

El 30% de la captura realizada en aguas de Mauritania por la Flota Industrial Europea de arrastre pelágico se descarga en puerto español (Las Palmas de Gran Canaria, Islas Canarias). La actividad de estos barcos está orientada a los peces pequeños pelágicos, principalmente a sardina (Sardina pilchardus (Walbaum, 1792)), alacha (Sardinella aurita Va...

European fishery off Mauritania (one of the most productive and most intensively exploited regions in the world) targeted to small pelagic fish accounts for 30% of the total catches in the area. The Instituto Español de Oceanografía (IEO), through its Centro Oceanográfico de Canarias, follows up the activity of these vessels that land at Spanish po...

La pesquería de peces pequeños pelágicos en aguas de Mauritania por parte de la Flota Industrial Europea de arrastre pelágico está dirigida a la captura de sardina (Sardina pilchardus (Walbaum, 1792)), alacha (Sardinella aurita Valenciennes, 1847), machuelo (Sardinella maderensis (Lowe, 1838)), caballa (Scomber colias Gmelin, 1789) y jureles (Trach...

Since 1963 the Spanish cephalopod-targeted trawl fishery has been developed in the Saharan Bank. This fishery is carried out by freezer trawlers using bottom trawl gear. This fleet operates under Community licences in Guinea Bissau and Mauritanian waters, and lands at the port of Las Palmas de Gran Canaria (Canary Islands). Since the mid-70’s resea...