When Fishemen Take Charge: The Development of a Management Plan for the Red Shrimp Fishery in Mediterranean Sea (NE Spain)

2020 ◽  
pp. 159-178
Author(s):  
Maiken Bjørkan ◽  
Joan B. Company ◽  
Giulia Gorelli ◽  
Francesc Sardà ◽  
Conrad Massaguer
Keyword(s):  
Mediterranean Sea ◽  
Management Plan ◽  
Shrimp Fishery ◽  
Ne Spain

Effects of mechanized dredging targeting Chamelea gallina, striped venus clams, on the associated discards in the northern Alboran Sea (Western Mediterranean Sea)

2018 ◽  
Vol 99 (3) ◽  
pp. 575-585
Author(s):  
Javier Urra ◽  
Teresa García ◽  
Estefanía León ◽  
Helena Gallardo-Roldán ◽  
Matías Lozano ◽  
...  
Keyword(s):  
Mediterranean Sea ◽  
Management Plan ◽  
Western Mediterranean ◽  
Alboran Sea ◽  
Severe Damage ◽  
Damage Level ◽  
Biological Communities ◽  
Western Mediterranean Sea ◽  
Chamelea Gallina ◽  
Alborán Sea

Mechanized dredging impact on discards was assessed along the northern Alboran Sea (W Mediterranean Sea). Data from 101 dredging operations were analysed for contrasting spatial and seasonal variability of damage, with the use of a three-level damage scale. 4.5% of discarded individuals displayed intermediate damage, whereas 11.3% displayed severe damage. Echinoderms displayed the highest level of damage (~75% of total collected individuals) and Echinocardium cf. mediterraneum was the most susceptible discarded species (85% with severe damage), followed by bivalves (7.3%) and crustaceans (3.3%). The target Chamelea gallina showed a low proportion of damaged individuals, probably due to their thick protective shell, which promotes the survival of discarded undersized target individuals. Spatial differences in damage level on discards were linked to some gear characteristics, to the higher amount of gravels and to longer tow durations, whereas damage was generally higher in cold months and partly related to higher quantities of hard shelled molluscs, in both cases increasing the abrasion and damage to retained organisms. Data suggest that dredges with a lower number of narrower iron teeth and towed for a shorter time could decrease the damage rate in discards of this fishery. A spatial management plan based on the type of grounds would be useful in order to improve efficiency of these fisheries and minimize their impact to soft bottoms with different commercial catches and biological communities.

scholarly journals Hydrodynamic controls on connectivity of the high commercial value shrimp Parapenaeus longirostris (Lucas, 1846) in the Mediterranean Sea

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Giovanni Quattrocchi ◽  
Matteo Sinerchia ◽  
Francesco Colloca ◽  
Fabio Fiorentino ◽  
Germana Garofalo ◽  
...  
Keyword(s):  
Mediterranean Sea ◽  
Current Knowledge ◽  
Stock Assessment ◽  
Spatial Scales ◽  
Management Plan ◽  
Nursery Areas ◽  
The North ◽  
North Side ◽  
Parapenaeus Longirostris ◽  
The Mediterranean

AbstractIn the Strait of Sicily (SoS), a wide passage of the Mediterranean Sea, Parapenaeus longirostris, (Lucas, 1846; DPS hereafter) is the main target species of trawl fisheries, with an estimated annual market value of about 80 million euro. The exploitation of this resource is shared between Italian, Tunisian and Maltese bottom trawlers and its management raises social, economic and environmental interests. Recent stock assessment revealed high fishing mortalities and low size at first capture, thus promoting the adoption of a strategic plan for a sustainable management. However, the current knowledge of the geographical boundaries of the stock, supporting  the implementation of such management plan is still poor. In this respect, under different hydrodynamic regimes, particle-tracking modelling was used to explore connectivity between both, known and unexplored, spawning and nursery areas of DPS in the SoS. Ensembles scenarios derived by model outcomes displayed decadal changes in connectivity between spawning and nursery areas in the north side of the SoS, hence confirming the presence of a single stock in this area. Expanding the area of investigation, the model results showed weak connectivity between spawning ground in the north side of SoS and nurseries on the African shelf-break. This method could support the spatial management of the stock, such as the protection of the nursery and spawning areas, by providing estimates of how connectivity is influenced by hydrodynamic regimes at different temporal and spatial scales.

The shrimp fishery of the South Atlantic United States: A regional management plan

1977 ◽  
Vol 3 (2) ◽  
pp. 87-119
Author(s):  
Peter J. Eldridge ◽  
Steven A. Goldstein
Keyword(s):  
United States ◽  
Management Plan ◽  
South Atlantic ◽  
The South ◽  
Shrimp Fishery ◽  
Regional Management

scholarly journals Ecological and socio-economic assessment of Kenyan coastal fisheries: the case of Malindi-Ungwana Bay artisanal fisheries versus semi-industrial bottom trawling

Afrika Focus ◽  
2013 ◽  
Vol 26 (2) ◽  
pp. 151-164
Author(s):  
Cosmas Nzaka Munga ◽  
Edward Kimani ◽  
Ann Vanreusel
Keyword(s):  
Fishery Management ◽  
Scientific Information ◽  
Economic Assessment ◽  
Management Plan ◽  
Current Status ◽  
Background Information ◽  
Catch Per Unit Effort ◽  
Bottom Trawling ◽  
Shrimp Fishery ◽  
Fisheries Resources

This study explores and describes the status of the fisheries resources in the Malindi-Ungwana Bay, Kenya. In addition to shrimp bottom trawling, the bay also supports a variety of artisanal fishing techniques with associated resource-use conflict experienced for quite some time until a ban on bottom trawling was imposed. This study therefore, focuses on a before and after the trawling ban effect on shrimp populations and finfish bycatch distribution and abundance, and the characterisation of artisanal finfish catches in terms of catch composition, catch-per-unit-effort, and mean trophic level by vessel-gear categories. Apart from providing the current status of exploitation level of the fisheries resources, the scientific information generated from this study is also useful for the revision of the shrimp fishery management plan that was formulated with inadequate scientific and background information during the six year bottom trawling ban in the bay.

Evidence of a predation event on a tagged Mediterranean spearfish (Tetrapturus belone; Pisces, Istiophoridae), inferred from pop-up satellite tagging data

2020 ◽  
Vol 33 ◽  
pp. 23
Author(s):  
Danilo Malara ◽  
Pietro Battaglia ◽  
Pierpaolo Consoli ◽  
Erika Arcadi ◽  
Simonepietro Canese ◽  
...  
Keyword(s):  
Mediterranean Sea ◽  
Research Group ◽  
Marine Mammals ◽  
Biodiversity Hotspot ◽  
Pelagic Species ◽  
Archival Tag ◽  
Abiotic Parameters ◽  
Predation Event ◽  
Satellite Tagging ◽  
First Time

The Strait of Messina is located at the centre of the Mediterranean Sea and is considered a biodiversity hotspot and an obligatory seasonal passage for different pelagic species such as sharks, marine mammals, and billfishes. For the first time, in the Strait of Messina, our research group tagged a Mediterranean spearfish (Tetrapturus belone) using a pop-up satellite archival tag (PSAT). The observation of abiotic parameters (depth, light, and temperature) recorded by the PSAT confirmed that the tagged specimen was predated after about nine hours. The tag was then regurgitated 14 days after the tag deployment date. The analysis of collected data seems to indicate that the predator may be an ectothermic shark, most likely the bluntnose sixgill shark (Hexanchus griseus).

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