Deutsches Ozeanographisches
Datenzentrum
Inventur der Cornide de Saavedra-Reise Ecocadiz 0606 (DOD-Ref-No.20061075)
Inventory of Cornide de Saavedra Cruise Ecocadiz 0606 (DOD-Ref-No.20061075)
Plattform Platform |
Reise-Nr. Cruise-No. |
Zeitraum Period |
Projekt Project |
Arbeitsgebiet Working area |
---|---|---|---|---|
Cornide de Saavedra | Ecocadiz 0606 | 18.06.2006 - 01.07.2006 | NE Atlantic (Limit 40?W) Gulf of Cadiz |
Fahrtleiter Chief Scientist | Institut Institute | Auslaufhafen Port of departure | Einlaufhafen Port of return | Stationskarte Station map | Schiffsroute Trackchart |
---|---|---|---|---|---|
Ramos Fernando | Instituto Espanol de Oceanografia, Cadiz | Cadiz | Cadiz |
Ziel der Reise / Objectives of Cruise:
Acoustic survey, conducted with an annual periodicity, to assess and map the pelagic (neritic) resources and the oceanographic and biological conditions of the Gulf of Cadiz continental shelf (both Spanish and Portuguese waters, ICES Subdivision IXa South). The survey season coincides with the anchovy (Engraulis encrasicolus) peak spawning in order to estimate the anchovy SSB by echo-integration. The acoustic sampling for assessment by echo-integration is performed during daylight hours. Biological characterization of the pelagic community is sampled by opportunistic pelagic trawls (for identification of echo-traces), which are also performed during the day. Ancillary biological information (fish eggs) sampled with CUFES (Continuous Underway Fish Egg Sampler) and coupled to the acoustic sampling. Occurrence of sea birds, turtles, and mammals is also recorded along the acoustic transects. Oceanographic characterization of the surveyed area from both discrete (CTD profiles in night stations) and continuous sampling (Thermosalinometer-fluorimeter) coupled to the CUFES sampling. Additional night pelagic trawls were also performed in order to collate some extra biological material and to carry out specific experiments (e.g., in situ determination of the anchovy target strength, TS; nictimeral behavior').
Messungen / Measurements
Institut Institute |
Wissenschaftler Scientist |
Anzahl Number |
Einheit Unit |
Typ der Messungen Type of measurements |
Kommentar Comments |
Daten im DOD Data in DOD |
---|---|---|---|---|---|---|
IEOF | Serna Quintero Jose Miguel | 23 | stations | B02 Phytoplankton pigments (e.g. chlorophyll, fluorescence) |
- | no |
IEOCD | Jimenez M? Paz | 1 | no unit | B02 Phytoplankton pigments (e.g. chlorophyll, fluorescence) |
- | no |
IEOCD | Jimenez M? Paz | 134 | hauls | B13 Eggs/larvae |
Fish eggs continuously sampled with CUFES (Continuous Underway Fish Egg Sampler) along the acoustic transects. The ?station? is the eggs sample collected after integrating the water volume sampled each 3 nm. In some transects the stations occurred in waters deeper than 200 m because of the presence of anchovy eggs in such waters. | no |
IEOCD | Ramos Fernando | 893 | no unit | B14 Pelagic fish |
- | no |
IEOCD | Millan Milagros | 39 | hauls | B14 Pelagic fish |
37 valid hauls according to gear performance and catches. Hauls conducted with a pelagic trawl during daylight hours, but 3 hauls during the night (for an in situ determination of anchovy TS and collection of extra biological material). Fishing performed just after detection of echo-traces of interest, with the fishing tracks either over the acoustic transect or crossing it, following a determinate isobath. Mean duration of effective fishing about 45 minutes. Data collection per haul of: speci | no |
IEOCD | Jimenez M? Paz | 134 | hauls | B14 Pelagic fish |
- | no |
FCMC | Mateos Maria | 1 | no unit | B25 Birds |
Census, by an observer onboard, of potential ?apical predators? of the pelagic ecosystem during acoustic sampling and fishing stations. | no |
FCMC | Mateos Maria | 1 | no unit | B26 Mammals and reptiles |
Census, by an observer onboard, of potential ?apical predators? of the pelagic ecosystem during acoustic sampling and fishing stations. | no |
IEOCD | Ramos Fernando | 893 | no unit | B28 Acoustic reflection on marine organisms |
NASCs estimated from 21 transects, normal to the shore line and inter-spaced 8 nm. Depth range of the acoustic sampling between 20 and 200 m depth and performed during daytime with echo-sounder SIMRAD EK 500 working at 35 kHz. | no |
IEOB | Miquel Juan | 39 | hauls | B64 Gear research |
Gear performance and geometry (vertical opening, ground rope-bottom distance, floating rope-surface distance, distance between doors, etc.), monitored with a net-sonde SIMRAD Mesotech FS20/25. | no |
IEOCD | Millan Milagros | 39 | hauls | B65 Exploratory fishing |
37 valid hauls according to gear performance and catches. Hauls conducted with a pelagic trawl during daylight hours, but 3 hauls during the night (for an in situ determination of anchovy TS and collection of extra biological material). Fishing performed just after detection of echo-traces of interest, with the fishing tracks either over the acoustic transect or crossing it, following a determinate isobath. Mean duration of effective fishing about 45 minutes. Data collection per haul of: speci | no |
IEOCD | Millan Milagros | 39 | hauls | B90 Other biological / fishery measurements |
37 valid hauls according to gear performance and catches. Hauls conducted with a pelagic trawl during daylight hours, but 3 hauls during the night (for an in situ determination of anchovy TS and collection of extra biological material). Fishing performed just after detection of echo-traces of interest, with the fishing tracks either over the acoustic transect or crossing it, following a determinate isobath. Mean duration of effective fishing about 45 minutes. Data collection per haul of: speci | no |
IEOCD | Juarez Ana | 39 | stations | H10 CTD-Stations |
Temperature, Salinity and Depth throughout the fishing hauls recorded by a CTD recorder coupled to the gear (SBE 37-SM MicroCAT) | no |
IEOF | Serna Quintero Jose Miguel | 23 | stations | H10 CTD-Stations |
23 Discrete profiles of Temperature, Salinity, Fluorescence, Oxygen, PH, PAR light data in the water column with a CTD probe (SBE 25 SEALOGGER) distributed in a systematic grid coupled to the grid of acoustic transects. 3 Stations (coastal, mid-shelf, oceanic waters)Stations performed in waters with a depth range between 30 and 932 m, but only sampled the first 300 m in the water column in depths deeper than 300m. | no |
IEOCD | Jimenez M? Paz | 1 | no unit | H11 Sub-surface measurements underway (T, S) |
Subsurface Temperature, Salinity and Fluorescence recorded with thermosalinometer-fluorimeter (SBE 21 SEACAT). Although variables were recorded all the cruise, the data stored for further processing corresponded to the acoustic transects & CUFES stations. In fact, GPS-Acoustics-CUFES-Thermosalinometer data recording was synchronised. | no |
IEOF | Serna Quintero Jose Miguel | 23 | stations | H17 Optics (e.g. underwater light levels) |
23 Discrete profiles of Temperature, Salinity, Fluorescence, Oxygen, PH, PAR light data in the water column with a CTD probe (SBE 25 SEALOGGER) distributed in a systematic grid coupled to the grid of acoustic transects. 3 Stations (coastal, mid-shelf, oceanic waters)Stations performed in waters with a depth range between 30 and 932 m, but only sampled the first 300 m in the water column in depths deeper than 300m. | no |
IEOF | Serna Quintero Jose Miguel | 23 | stations | H21 Oxygen |
23 Discrete profiles of Temperature, Salinity, Fluorescence, Oxygen, PH, PAR light data in the water column with a CTD probe (SBE 25 SEALOGGER) distributed in a systematic grid coupled to the grid of acoustic transects. 3 Stations (coastal, mid-shelf, oceanic waters)Stations performed in waters with a depth range between 30 and 932 m, but only sampled the first 300 m in the water column in depths deeper than 300m. | no |
IEOF | Serna Quintero Jose Miguel | 23 | stations | H28 PH |
23 Discrete profiles of Temperature, Salinity, Fluorescence, Oxygen, PH, PAR light data in the water column with a CTD probe (SBE 25 SEALOGGER) distributed in a systematic grid coupled to the grid of acoustic transects. 3 Stations (coastal, mid-shelf, oceanic waters)Stations performed in waters with a depth range between 30 and 932 m, but only sampled the first 300 m in the water column in depths deeper than 300m. | no |
IEOF | Serna Quintero Jose Miguel | 23 | stations | M05 Occasional standard measurements |
23 Discrete profiles of Temperature, Salinity, Fluorescence, Oxygen, PH, PAR light data in the water column with a CTD probe (SBE 25 SEALOGGER) distributed in a systematic grid coupled to the grid of acoustic transects. 3 Stations (coastal, mid-shelf, oceanic waters)Stations performed in waters with a depth range between 30 and 932 m, but only sampled the first 300 m in the water column in depths deeper than 300m. | no |
FCMC | Mateos Maria | 1 | no unit | M05 Occasional standard measurements |
Census, by an observer onboard, of potential ?apical predators? of the pelagic ecosystem during acoustic sampling and fishing stations. | no |
IEOCD | Millan Milagros | 39 | hauls | M05 Occasional standard measurements |
37 valid hauls according to gear performance and catches. Hauls conducted with a pelagic trawl during daylight hours, but 3 hauls during the night (for an in situ determination of anchovy TS and collection of extra biological material). Fishing performed just after detection of echo-traces of interest, with the fishing tracks either over the acoustic transect or crossing it, following a determinate isobath. Mean duration of effective fishing about 45 minutes. Data collection per haul of: speci | no |