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

Données d'échantillonnage
Dernière version Publié par Test Organization #1 le sept. 6, 2023 Test Organization #1
Date de publication:
6 septembre 2023
Publié par:
Test Organization #1
Licence:
CC-BY 4.0

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Description

Fish data collected by a RMT net. Samples were collected during the BROKE-west cruise of RV ‘‘Aurora Australis’’ (05/06 V3) in 20 the CCAMLR statistical subarea 58.4.2, between January 2 and March 17, 2006. The sampling grid consisted of eleven longitudinal transects between 30° and 80° E and 58°S south to the Antarctic coastline. Fish were caught using Rectangular Midwater Trawl nets (RMT 8 + 1), consisting of a RMT 1 mounted above a RMT 8 with a mouth area of 1 and 8 m² and a cod end mesh size of 0.33 and 0.85 mm, respectively. Two types of methods were used: target trawls and routine trawls. Target trawls were not pre-planned and were aimed at acoustically detected aggregations. The net was lowered to the depth of the aggregation, and opened and closed remotely. Routine hauls consisted of a standard double oblique tow from the surface down to 200 5 m and back again to the surface. Towing speed was approximately 2.5 knots (4.5 km h-1). Further details on the sampling procedure are outlined in Kawaguchi et al.

Enregistrements de données

Les données de cette ressource données d'échantillonnage ont été publiées sous forme d'une Archive Darwin Core (Darwin Core Archive ou DwC-A), le format standard pour partager des données de biodiversité en tant qu'ensemble d'un ou plusieurs tableurs de données. Le tableur de données du cœur de standard (core) contient 126 enregistrements.

3 tableurs de données d'extension existent également. Un enregistrement d'extension fournit des informations supplémentaires sur un enregistrement du cœur de standard (core). Le nombre d'enregistrements dans chaque tableur de données d'extension est illustré ci-dessous.

Event (noyau)
126
ExtendedMeasurementOrFact 
2632
Occurrence 
389

Cet IPT archive les données et sert donc de dépôt de données. Les données et métadonnées de la ressource sont disponibles pour téléchargement dans la section téléchargements. Le tableau des versions liste les autres versions de chaque ressource rendues disponibles de façon publique et permet de tracer les modifications apportées à la ressource au fil du temps.

Versions

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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
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
Royal Belgian Institute of Natural Sciences
BE
Filip Volckaert
  • Créateur
University of Leuven
BE
Yi-Ming Gan
  • Fournisseur Des Métadonnées
Royal Belgian Institute of Natural Sciences
BE

Couverture géographique

Southern Ocean

Enveloppe géographique Sud Ouest [-69,21, 29,9], Nord Est [-61,66, 80,03]

Couverture taxonomique

Pas de description disponible

Kingdom Animalia
Phylum Chordata, Mollusca
Class Actinopteri, Cephalopoda
Order Aulopiformes, Gadiformes, Myctophiformes, Oegopsida, Perciformes, Teuthida

Couverture temporelle

Date de début / Date de fin 2006-01-02 / 2006-03-12

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).

Titre PELAGANT
Identifiant SD/BA/851
Financement Belgian Science Policy (BELSPO)

Les personnes impliquées dans le projet:

Anton Van de Putte

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.

Etendue de l'étude Samples were collected during the BROKE-west cruise of RV ‘‘Aurora Australis’’ (05/06 V3) in 20 the CCAMLR statistical subarea 58.4.2, between January 2 and March 17, 2006 (Fig. 1). The sampling grid consisted of eleven longitudinal transects between 30° and 80° E and 58°S south to the Antarctic coastline. Fish were caught using Rectangular Midwater Trawl nets (RMT 8 + 1), consisting of a RMT 1 mounted above a RMT 8 with a mouth area of 1 and 8 m² and a cod end mesh size of 0.33 and 0.85 mm, respectively. Two types of methods were used: target trawls and routine trawls. Target trawls were not pre-planned and were aimed at acoustically detected aggregations. The net was lowered to the depth of the aggregation, and opened and closed remotely. Routine hauls consisted of a standard double oblique tow from the surface down to 200 5 m and back again to the surface. Towing speed was approximately 2.5 knots (4.5 km h-1). Further details on the sampling procedure are outlined in Kawaguchi et al.

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

Identifiants alternatifs c60ec6f0-1089-4c1e-b25c-deb0a5a5c38b
https://ipt.gbif.org/resource?r=brokewest-fish