Records of zooplankton from 101 alpine lakes in the Western Alps

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如何引用

研究者應依照以下指示引用此資源。:

Tiberti R (2025). Records of zooplankton from 101 alpine lakes in the Western Alps. Version 1.0. Consiglio Nazionale delle Ricerche - Istituto di Ricerca sulle Acque. Occurrence dataset. https://cloud.gbif.org/eca/resource?r=zooplankton_western_alps&v=1.0

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 Consiglio Nazionale delle Ricerche - Istituto di Ricerca sulle Acque。 This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License.

GBIF 註冊

此資源已向GBIF註冊，並指定以下之GBIF UUID: 0cdbc263-7514-477e-ae3d-c586aed1601c。  Consiglio Nazionale delle Ricerche - Istituto di Ricerca sulle Acque 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

聯絡資訊

地理涵蓋範圍

Western Alps, in Europe, at the borders between France and Italy.

時間涵蓋範圍

計畫資料

The survey is part of the research projects PITEM Biodiv’ALP – PS 5217 “Geobiodiv” (2020-2022), LIFE BIOAQUAE (LIFE11 BIO/IT/000020; 2013-2017), LIFE RESQUE ALPYR (LIFE20 NAT/ES/000369; 2022), Biodiversa FISHME (BiodivRestor-280; 2022), FP7 ACQWA Project (Grant Agreement No. 212250; 2008-2010).

參與計畫的人員:

取樣方法

Repeated samples of zooplankton were collected from 101 lakes over a period of 19 years (2006-2024; 1-52 samples per lake; 17-47 samples per year). The sampling frequency and duration varied among lakes; some lakes were sampled throughout the entire 19-year period, while others were sampled for shorter periods (ranging from 2 to 18 years), or in some cases, just for one year. Sampling was primarily conducted in late summer (August-October), to capture the late stage of seasonal succession when most zooplankton species reach their biomass peak. Many lakes were sampled multiple times during the ice-free season (2-8 times per year), including early summer, to account for the strong seasonal dynamics of zooplankton communities. Samples were collected using vertical net hauls (from the bottom to the surface) at the deepest point of each lake, with a conical plankton net (30 or 40 cm diameter, 50 μm mesh). After collection, samples were promptly fixed in the field using either 70% ethanol or Lugol’s iodine solution. Zooplankton samples were then concentrated to a known volume, and 3-5 subsamples of volumes ranging from 0.05 to 1 mL were extracted after homogenization using a wide-bore pipette for counting. Abundance estimates were back-transformed to represent the number of individuals per cubic meter of water. At the conclusion of these operations, the entire sample was examined to identify taxa present at very low-density levels, which may have passed unnoticed due to subsampling. If any were found, their density was fixed to a default value of 0.1 individuals per cubic meter of water.

方法步驟描述:

1. Animals were sorted and isolated in the laboratory under a dissecting microscope. All isolated individuals were identified using a compound microscope to species level when possible, if not to genus or higher taxonomic level.

額外的詮釋資料