Distribution of squid and fish in the pelagic zone of the Cosmonaut Sea and Prydz Bay region during the BROKE-West campaign - data

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Comment citer

Les chercheurs doivent citer cette ressource comme suit:

Van de Putte A, Jackson G, Pakhomov E, Flores H, Gan Y, Volckaert F (2023). Distribution of squid and fish in the pelagic zone of the Cosmonaut Sea and Prydz Bay region during the BROKE-West campaign - data. Version 1.10. Test Organization #1. Samplingevent dataset. https://ipt.gbif.org/resource?r=brokewest-fish&v=1.10

Droits

Les chercheurs doivent respecter la déclaration de droits suivante:

L’éditeur et détenteur des droits de cette ressource est Test Organization #1. Ce travail est sous licence Creative Commons Attribution (CC-BY) 4.0.

Enregistrement GBIF

Cette ressource a été enregistrée sur le portail GBIF, et possède l'UUID GBIF suivante : c60ec6f0-1089-4c1e-b25c-deb0a5a5c38b.  Test Organization #1 publie cette ressource, et est enregistré dans le GBIF comme éditeur de données avec l'approbation du GBIF Secretariat.

Mots-clé

Samplingevent; CEPHALOPODS; SQUIDS; FISH; PELAGIC; SOUTHERN OCEAN

Contacts

Anton Van de Putte

• Créateur ●
• Personne De Contact

Royal Belgian Institute of Natural Sciences

BE

http://orcid.org/0000-0003-1336-5554

George Jackson

• Créateur

University of Tasmania

AU

Evgeny Pakhomov

• Créateur

University of British Columbia

CA

Hauke Flores

• Créateur

Wageningen IMARES

NL

Yi-Ming Gan

• Fournisseur Des Métadonnées ●
• Créateur ●
• Personne De Contact

Royal Belgian Institute of Natural Sciences

BE

http://orcid.org/0000-0001-7087-2646

Filip Volckaert

• Créateur

University of Leuven

BE

Couverture géographique

Southern Ocean

Couverture taxonomique

Pas de description disponible

Couverture temporelle

Données sur le projet

Anton Van de Putte is supported by Belgian Science Policy (PELAGANT project and the PADI project no. SD/BA/851), Hauke Flores is supported by the Netherlands AntArctic Programme (NAAP, Proj. nr. 851.20.011) and the Netherlands Ministry of Agriculture, Nature and Food Quality (LNV).

Les personnes impliquées dans le projet:

Anton Van de Putte

• Auteur

http://orcid.org/0000-0003-1336-5554

Méthodes d'échantillonnage

Fish and squid were sorted from the total catch of the RMT 8 and identified to species level wherever possible. Fish standard length was measured onboard to the lowest mm below and fish were preserved on absolute ethanol, formalin or initially frozen at -80°C and stored at -20°C. Squid were preserved in absolute ethanol onboard; measuring of the mantel length (ML) to the lowest mm below and identification was done in the laboratory.

Description des étapes de la méthode:

1. Formalin preserved samples and a small subsample of stomachs taken from a few larger frozen fish designated for energy measurements were analysed in the lab. Stomach content was analysed according to the method described in Pakhomov et al. (1996). Results from stomach content analyses were expressed as a percentage of each food item of the total number of food items counted (N, %). 2.3. Water and energy content Dry mass and energy content was determined from frozen specimens. To prevent errors due to the loss of body fluids during dissection, water and energy content was determined for whole individuals only. Only for the few larger specimens caught, stomach content was analysed before 5 desiccation. Frozen fish were thawed, blotted dry and total wet weight (WW) was determined to the nearest 0.1 mg. Fish were freeze dried until complete desiccation (constant mass). After drying, they were re-weighed to determine the total dry weight (DW). Water content was calculated as the difference between WW and DW, expressed as %WW. Individual DW and WW energy content, expressed as kJ g-1, was determined by an isoperibol bomb calorimeter calibrated 10 with benzoic acid. After homogenizing, either the whole fish or a subsample (0.1–0.6 g) was used for calorimetry, depending on the size of the fish. 2.4. Additional Data The RMT net used for sampling was equipped with a CTD, providing detailed data on conductivity, temperature (C°), salinity (PSU), pressure (dBar) and fluorescence (Gorton 2006). Additional oceanographic information such as mixed layer depth (MLD) and position of fronts was provided by Williams et al. (this issue). Solar azimuth, elevation and day length were calculated as a measurement of light conditions, according to a procedure used by NOAA (Earth System Research Laboratory 2007).

Citations bibliographiques

1. Van de Putte, A.P.; Jackson, G.D.; Pakhomov, E.; Flores, H.; Volckaert, F.A.M. (2010). Distribution of squid and fish in the pelagic zone of the Cosmonaut Sea and Prydz Bay region during the BROKE-West campaign. Deep-Sea Res., Part 2, Top. Stud. Oceanogr. 57(9-10): 956-967. dx.doi.org/10.1016/j.dsr2.2008.02.015 https://doi.org/10.1016/j.dsr2.2008.02.015
2. Kawaguchi S., Nicol S., Virtue P., Davenport S., Casper R., Swadling K., Hosie G.W., 2010. Krill demography and large scale distribution in the Western Indian Ocean sector of the Southern Ocean (CCAMLR Division 58.4.2) in Austral summer of 2006. Deep-Sea Research II 57 (9–10), 934–947. https://doi.org/10.1016/j.dsr2.2008.06.014
3. Pakhomov, E.A., Perissinotto, R., McQuaid, C.D., 1996. Prey composition and daily rations of myctophid fishes in the Southern Ocean. Mar. Ecol. Prog. Ser. 134, 1–14. https://www.jstor.org/stable/24856112

Métadonnées additionnelles