Estimation by acoustical methods stock biomass of anchovy (Engraulis encrasicolus) and sardine (Sardina pilchardus) Spanish Mediterranean.
Estimation by acoustical methods stock biomass of anchovy (Engraulis encrasicolus) and sardine (Sardina pilchardus) Spanish Mediterranean.
Seasonal and mesoscale variability of biological and chemical parameters related to the hydrodynamics of the Ibiza Channel
This cruise continues with the line started in previous years cruises with the general operational target of the registration of oceanographic parameters and obtaining water samples and various types of suitable and sufficient plankton for the achievement of the following specific objectives: 1- Obtaining data on larval densities and CTD profiles to estimate Larval abundance indices for species of the genus Thunnus in the Balearic Sea. 2- Determine the influence of hydrographic scenario on the structure, distribution and condition of large and medium pelagic larval populations in the Balearic Sea, with special attention to Atlantic bluefin tuna. 3- Identification of the hydrographic processes that determine the productivity of the pelagic ecosystem of the Balearic Sea. 4- Characterization of the genetic structure of the larval populations of bluefin tuna and related species in the Balearic Sea, used for the 'close-kin' studies recently initiated by ICCAT. 5- Evaluate the possibility of using acoustic methods in the characterization of bluefin tuna populations and the distribution of larval habitats.
The general objective of the RADMED-TRES project is the multidisciplinary monitoring of the platform and deep waters of the Spanish Mediterranean, the peninsular coast and the Balearic Islands.
The objective of the INTEMARES-CANAL0419 cruise is to evaluate the impact of fishing on vulnerable benthic habitats of the LIC Canal de Menorca's circa-littoral bottoms. More specifically, trawl fishing in the maërl (habitat 1110) and artisanal fisheries, mainly trammel trawl for the capture of lobster, on coralligenous (Habitat 1170). To do this, it is proposed to compare the ecological parameters of these communities in bottom subject to different levels of fishing exploitation.
Direct visual observation survey in order to improve the knowledge of marine bottoms in the Menorca Channel and Emile Baudot seamount. For that, the specific objectives are: 1. Improvement of the scientific knowledge for the physical, environmental and biological characterization of areas known to present high diversity of juveniles of European spiny lobster in the Menorca channel and 2. Start the biological characterization of benthic habitats in circalitoral and batyal bottoms in the Emile Baudot seamount.
The general objective of the INTEMARES-A22B-1019 campaign is to complete the geophysical mapping of the underwater mountains of the Canal de Mallorca and continue the biological characterization of its benthic and necto-benthic communities. For this, the following partial objectives are proposed: 2.1. Geomorphological and sedimentary characterization of the funds surrounding the mountains Ses Olives, Ausias March and Emile Baudot submarines, based on bathymetric data and reflectivity, obtained with EM710 multi-beam echo sounder, echo sounder profiles parametric TOPAS PS018 and surface sediment samples collected with dredgers Box-Corer and Shipek and rocks with drag dredge. Priority 1 2.2. Biological characterization of the benthic and necto-benthic communities, from of samples collected with epi-benthic skate, drag dredge and trawl experimental GOC-73 and images obtained with the TASIFE sled, in funds sedimentary and rocky previously mapped. Priority 1 2.3. Make seismic profiles with TOPAS PS018 parametric echo sounder, to obtain sedimentary structure information
CR Tunibal
CR Tunibal