SPC NECTALIS Zooplankton/Micronekton specimens, New Caledonia 2014

Latest version published on 16 January 2019
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Publication date:
16 January 2019
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CC-BY-NC 4.0

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The overall objective of the NECTALIS 3 cruise is studying intermediate trophic levels in pelagic ecosystem: characterizing the environment, acoustics, sampling and modelling of zooplankton and micronekton in New Caledonia. The Nectalis 3 cruise contributes to explore the southern area of the exclusive economic zone (EEZ) of New Caledonia in the south-west Pacific to collect data and samples on the pelagic ecosystem where tuna swim, particularly albacore tuna.

Data Records

The data in this occurrence resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 12,450 records.

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How to cite

Researchers should cite this work as follows:

Allain, V., Menkes, C., 2014. Nectalis 3 cruise, RV Alis. https://doi.org/10.17600/14004900


Researchers should respect the following rights statement:

This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC 4.0) License.

GBIF Registration

This resource has not been registered with GBIF


Occurrence; Observation

External data

The resource data is also available in other formats


Francois Roupsard
  • Metadata Provider
  • Originator
Research Assistant
The Pacific Community (SPC)
98800 Noumea
Sylvain Caillot
  • Metadata Provider
IT/DB Manager
The Pacific Community (SPC)
98800 Noumea
Sylvain Caillot
  • Metadata Provider
DB/IT Manager
The Pacific Community (SPC)
98800 Noumea
Valerie Allain
  • Point Of Contact
Senior Fisheries Scientist
The Pacific Community (SPC)
98800 Noumea
Christophe Menkes
  • Point Of Contact
French Institute for Research and Development (IRD)
Ainsof So'o
  • Programmer
Systems Analyst and Developer
Elodie Vourey
  • Curator
Laborary Assistant
The Pacific Community (SPC)
98800 Noumea

Geographic Coverage

South and west of New Caledonia EEZ

Bounding Coordinates South West [-24.046, 160], North East [-20.056, 168.354]

Taxonomic Coverage

Zooplankton is composed mainly of crustaceans measuring between 0.2mm and 2cm. Micronekton, which forms the food of tuna, is constituted of larger organisms: fish, shrimps or squids measuring between 2 and 20cm.

Kingdom Animalia

Temporal Coverage

Start Date / End Date 2014-11-22 / 2014-12-09

Project Data

The NECTALIS3 project studies the mid-trophic levels of the pelagic ecosystem of New-Caledonia: zooplankton and micronekton. Those components are the link between physical/chemical factors which influence their distribution and abundance, and fish exploited resources, particularly tuna, which are their predators. To complement a larger project based on observations, technology and modelling, we propose a multidisciplinary cruise to collect sea water physical and chemical data as well as data on zooplankton and micronekton. To characterise physico-chemical conditions and primary production, we measure temperature, salinity, oxygen, fluorescence, light, currents, nutrients, photosynthetic pigments, phytoplankton abundance, primary production, phytoplanktonic communities. Secondary production (zooplankton, micronekton) is measured with acoustic (TAPS, S-ADCP, L-ADCP, EK60) and net sampling of zooplankton and micronekton. This cruise is complemented by physical, chemical and biogeochemical modelling, by tuna diet study and by modelling of the pelagic ecosystem including several sub-models. Specialists in dynamic, acoustic, biogeochemistry, oceanography, biology and fisheries coming from different research institutions collect, analyse and model observations on the mid-trophic levels. We have two goals: 1) sustainable fish resources management with the improvement of our understanding of spatio-temporal distribution and behaviors of the tuna preys to eventually better understand tuna-environment relationships 2) conservation and protection of offshore waters by providing new information on pelagic biodiversity to contribute to the identification of ecologically and biologically significant areas in the Caledonian EEZ.

Title NECTALIS 3 scientific cruise, micronekton collection
Identifier BID-PA2016-0002-REG
Funding The Nectalis 3 cruise received the financial support of IRD, SPC and AAMP (French Marine Protected Areas), now Agence Française de la Biodiversité (AFB). Data prepared and published under project "Capacity building and data mobilization for conservation and decision making in the South Pacific" - BID-PA2016-0002-REG

The personnel involved in the project:

Valerie Allain
  • Point Of Contact

Sampling Methods

Based on acoustic signal of EK60 we used a mesopelagic midwater trawl (Micronekton pelagic trawl 24mx24m) to target acoustic layers and collect micronekton organisms.

Study Extent South and West of the New Caledonia EEZ on a daily basis during the NECTALIS cruise
Quality Control Species identification made by taxonomists

Method step description:

  1. Three methods were used to estimate zooplankton (organisms 2 µm – 20 mm) biomass: a Tracor Acoustic Profiling System (TAPS), net sampling and Ship-Borne Acoustic Doppler Current Profilers (S-ADCP).
  2. Three methods were used to estimate micronekton (organisms 2 - 20 cm) biomass and species composition: using an EK60 echosounder, net sampling and the S-ADCP

Collection Data

Collection Name Nectalis3 collection
Collection Identifier NEC3
Specimen preservation methods Formalin,  Deep frozen,  Alcohol

Bibliographic Citations

  1. Menkes, C., Allain, V., Rodier, M., Gallois, F., Lebourges-Dhaussy, A., Hunt, B.P.V., Smeti, H., Pagano, M., Josse, E., Daroux, A., Lehodey, P., Senina, I., Kestenare, E., Lorrain, A., Nicol, S.J., 2015. Seasonal oceanography from physics to micronekton in the south-west Pacific. Deep Sea Research Part II: Topical Studies in Oceanography. 113:125-144. DOI 10.1016/j.dsr2.2014.10.026 10.1016/j.dsr2.2014.10.026

Additional Metadata

marine, harvested by iOBIS

Alternative Identifiers 7c0cd863-8b81-4937-84f9-2f596fd3fa79