SPC NECTALIS Zooplankton/Micronekton specimens, New Caledonia 2014

資料紀錄

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下載最新版本的 Darwin Core Archive (DwC-A) 資源，或資源詮釋資料的 EML 或 RTF 文字檔。

版本

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如何引用

研究者應依照以下指示引用此資源。:

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

權利

研究者應尊重以下權利聲明。:

此資料的發布者及權利單位為 The Pacific Community (SPC)。 This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC) 4.0 License.

GBIF 註冊

此資源已向GBIF註冊，並指定以下之GBIF UUID: 7c0cd863-8b81-4937-84f9-2f596fd3fa79。  The Pacific Community (SPC) 發佈此資源，並經由Participant Node Managers Committee同意向GBIF註冊成為資料發佈者。

關鍵字

Occurrence; Specimen

外部資料

此資源尚有其他格式可用

聯絡資訊

地理涵蓋範圍

South and west of New Caledonia EEZ

分類群涵蓋範圍

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.

時間涵蓋範圍

計畫資料

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.

參與計畫的人員:

取樣方法

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

方法步驟描述:

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

收藏資料

引用文獻

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

額外的詮釋資料