PELACUS 0407

Name: PELACUS 0407
Start: 2007-03-27
End: 2007-04-23
Location: Bay of Biscay

Type	Oceanographic cruise
Set	This cruise is part of the set PELACUS
Ship	Thalassa
Ship owner	Ifremer
Dates	27/03/2007 - 23/04/2007
Chief scientist(s)	BERNAL Miguel , SANTOS Begona
	INSTITUTO ESPANOL DE OCEANOGRAFIA (CADIZ) Unidad de Cadiz Campus Universitario de Puerto Real C/Republica Saharaui, s/n 11510 PUERTO REAL (CADIZ) +34 956 016290 ieo@cd.ieo.es
DOI	10.17600/7003026
Objective	Estimation of pelagic fish abundance in coastal waters of southern Europe using echo integration. Mapping of the area of distribution. CUFES continuous underway recording to estimate egg abundance. Calibration between continuous egg recording and conventional Pairovet sampling at stations. Estimation of size-fractioned plankton biomass (CHN method). Studying oceanographic and meteorological conditions and how they are related to distribution and abundance of adult pelagic fish and eggs. Hydrology: Characterizing the thermohaline properties of continental shelf waters. Measuring vertical profiles of temperature, salinity and fluorescence and acquiring surface data (thermosalinometry, fluorescence and meteorology). Plankton: Determining taxonomic diversity and biomass distribution patterns in different size classes of plankton (phytoplankton and zooplankton) in the study area. Mapping the abundance of predators.

Sea/Ocean

Bay of Biscay

(Galicia + Cantabrico)

Ports

Port of departure : Brest (France)

Port of return : Santander (Spain)

Scientific Authority

INSTITUTO ESPANOL DE OCEANOGRAFIA (CADIZ)

Unidad de Cadiz

Campus Universitario de Puerto Real

11510 PUERTO REAL (CADIZ)

+34 956 016290

ieo@cd.ieo.es

Participating bodie(s)

IEO, IFREMER

Discipline(s)

BIOLOGICAL OCEANOGRAPHY
FISHERIES
PHYSICAL OCEANOGRAPHY
CHEMICAL OCEANOGRAPHY

Code	Label	Quantity	PI
B01	Primary productivity Phytoplankton incubation samples	66 stations	BERNAL Miguel
B06	Dissolved organic matter (inc DOC)	70	BERNAL Miguel
B07	Pelagic bacteria/micro-organisms Samples with bottles ; to be analysed on lab (Avec J.Cabal)	360 samples	VARELA M.
B08	Phytoplankton Samples with vertical tows ; to be analysed on lab (Avec J.Cabal)	48 samples	VARELA M.
B09	Zooplankton Samples with vertical tows ; to be analysed on lab (Avec J.Cabal)	66 samples	VARELA M.
B13	Eggs & larvae Obtained by CUFES	456	BERNAL Miguel
B14	Pelagic fish Fishing hauls with pelagic trawl (Avec C.Burgos)	52 hauls	SANTOS Begona
B25	Birds Observers along transects	107 observations	SANTOS Begona
B71	Particulate organic matter (inc POC Samples with bottles ; to be analysed on lab (Avec J.Cabal)	59 samples	VARELA M.
B72	Biochemical meas. (eg,lipids,amino Samples with bottles ; to be analysed on lab (Avec J.Cabal)	360 samples	VARELA M.
G73	Single-beam echosounding 1000nm-Echosound.38 & 120 kHz, -60db. Sofware Echoview (Avec D.Onate)	-	MIQUEL Juan Carlos
H09	Water bottle stations	66 stations	BERNAL Miguel
H10	CTD stations	171 stations	BERNAL Miguel
H11	Subsurface meas. underway (T,S) Continuous using Thalassa facilities	-	BERNAL Miguel
H21	Oxygen Samples with bottles ; to be analysed on lab (Avec A.Bode)	66 stations	NOGUEIRA Enrique
H22	Phosphate Samples with bottles ; to be analysed on lab (Avec A.Bode)	66 stations	NOGUEIRA Enrique
H23	Total - P Samples with bottles ; to be analysed on lab (Avec A.Bode)	66 stations	NOGUEIRA Enrique
H24	Nitrate Samples with bottles ; to be analysed on lab (Avec A.Bode)	66 stations	NOGUEIRA Enrique
H25	Nitrite Samples with bottles ; to be analysed on lab (Avec A.Bode)	66 stations	NOGUEIRA Enrique
H26	Silicate Samples with bottles ; to be analysed on lab (Avec A.Bode)	66 stations	NOGUEIRA Enrique
H27	Alkalinity Samples with bottles ; to be analysed on lab (Avec A.Bode)	66 stations	NOGUEIRA Enrique
H28	pH Samples with bottles ; to be analysed on lab (Avec A.Bode)	66 stations	NOGUEIRA Enrique
H30	Trace elements Samples with bottles ; to be analysed on lab (Avec A.Bode)	66 stations	NOGUEIRA Enrique
H74	Carbon dioxide Samples with bottles ; to be analysed on lab (Avec A.Bode)	66 stations	NOGUEIRA Enrique
H76	Ammonia Samples with bottles ; to be analysed on lab (Avec A.Bode)	66 stations	NOGUEIRA Enrique
H90	Other chemical oceanographic meas. Samples with bottles ; to be analysed on lab (Avec A.Bode)	66 samples	NOGUEIRA Enrique

Summary of measurements

-Acoustics: Acoustic sampling was done in daytime over a sampling grid with legs 8 miles apart (2,280 nautical miles covered, 1,000 on legs).
-Trawls: A pelagic trawl and a GOV-type semi-pelagic trawl will be used (52 hauls).
-Hydrology and plankton: Stations will be located along acoustic transects during the night (171 vertical profiles of salinity, temperature and fluorescence, along 22 transects).
-Continuous recording of eggs: A pump was used to take water at 3 m depth. Using this pump, horizontal distribution of eggs (456 samples) was obtained by the CUFES (Continuous Underway Fish Egg Sampler).
-Mapping the abundance of predators: (107) Including 60 legs.

Location map

Positionning system

Geodetic system : WORLD GEODETIC SYSTEM 1984 = WGS84

Positioning system : GPS différentiel

Data managed by SISMER

Bibliography

Publications

Vandromme Pieter, Nogueira Enrique, Huret Martin , Lopez-Urrutia Angel, Gonzalez-Nuevo Gonzalez G., Sourisseau Marc , Petitgas Pierre (2014). Springtime zooplankton size structure over the continental shelf of the Bay of Biscay. Ocean Science, 10(5), 821-835. Publisher's official version : https://doi.org/10.5194/os-10-821-2014 , Open Access version : https://archimer.ifremer.fr/doc/00221/33246/

Santos M. Begoña, Gonzalez-Quiros R., Riveiro I., Iglesias M., Louzao M., Pierce G. J. (2013). Characterization of the pelagic fish community of the north-western and northern Spanish shelf waters. Journal Of Fish Biology, 83(4), 716-738. https://doi.org/10.1111/jfb.12107

Fernandez R., Macleod C. D., Pierce G. J., Covelo P., Lopez A., Torres-Palenzuela J., Valavanis V., Santos M. B. (2013). Inter-specific and seasonal comparison of the niches occupied by small cetaceans off north-west Iberia. Continental Shelf Research, 64, 88-98. https://doi.org/10.1016/j.csr.2013.05.008

Santos M. Begoña, Gonzalez-Quiros Rafael, Riveiro Isabel, Cabanas Jose M., Porteiro Carmela, Pierce Graham J. (2012). Cycles, trends, and residual variation in the Iberian sardine (Sardina pilchardus) recruitment series and their relationship with the environment. Ices Journal Of Marine Science, 69(5), 739-750. Publisher's official version : https://doi.org/10.1093/icesjms/fsr186 , Open Access version : https://archimer.ifremer.fr/doc/00240/35128/

References of Technical Reports

Rocklin Delphine, Pelletier Dominique , Levrel Harold (2011). Projet Système d'Information sur la Nature et les Paysages, Volet mer (SINP-mer). Test des indicateurs institutionnels de biodiversité marine et côtière et correspondance avec les critères et normes méthodologiques concernant le bon état écologique des eaux marines de la DCSMM. Projet SINP mer NA : A110204.