Seagrass meadow and macrofauna communities in Southern coast of Algerian Basin (El Mellah Lagoon), 2019

Sampling event
最新版本 published by Hellenic Center for Marine Research on 4月 1, 2025 Hellenic Center for Marine Research
發布日期:
2025年4月1日
授權條款:
CC-BY 4.0

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DwC-A資料集 下載 37 紀錄 在 English 中 (9 KB) - 更新頻率: 有可能更新，但不確知何時
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說明

This dataset is the main part of a study conducted monthly throughout 2019 at three stations selected due to their combined continental and marine influences. The study aimed to assess the health status of the El Mellah lagoon. The analysis of the spatio-temporal variation of angiosperms reveals significant changes in their distribution within the lagoon, which appear to be linked to fluctuations in the environmental conditions of El Mellah. It is observed that Zostera noltei (Hornemann, 1832) dominates the stations influenced by freshwater, while Ruppia maritima (Linnaeus, 1753) dominates the northern part of the lagoon, where the influence of marine waters is more pronounced. The invasive species Arcuatula senhousia, which was first observed in June 2019 in El Mellah, has been found attached to the leaves and rhizomes of Zostera noltei, and to a lesser extent, on the empty shells of the bivalve Cerastoderma glaucum. Since its introduction, it has dominated the bivalve community in El Mellah with a maximum density of 1321 ± 1167 ind.m-2. This phenomenon can lead to a decline in the biodiversity of the lagoon, particularly affecting the Zostera noltei seagrass and the threatened Cerastoderma glaucum species. It is necessary to conduct comprehensive studies to assess the impact of Arcuatula senhousia in the El Mellah lagoon to implement appropriate conservation and restoration measures to preserve the integrity of the ecosystem."

資料紀錄

此資源sampling event的資料已發佈為達爾文核心集檔案（DwC-A），其以一或多組資料表構成分享生物多樣性資料的標準格式。 核心資料表包含 37 筆紀錄。

亦存在 1 筆延伸集的資料表。延伸集中的紀錄補充核心集中紀錄的額外資訊。 每個延伸集資料表中資料筆數顯示如下。

Event (核心)
37
Occurrence 
264

此 IPT 存放資料以提供資料儲存庫服務。資料與資源的詮釋資料可由「下載」單元下載。「版本」表格列出此資源的其它公開版本，以便利追蹤其隨時間的變更。

版本

以下的表格只顯示可公開存取資源的已發布版本。

如何引用

研究者應依照以下指示引用此資源。:

HAMZA H, De Wit R, Mammeria A B (2025). Seagrass meadow and macrofauna communities in Southern coast of Algerian Basin (El Mellah Lagoon), 2019. Version 1.4. Hellenic Center for Marine Research. Samplingevent dataset. http://ipt.medobis.eu/resource?r=mammeria&v=1.4

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 Hellenic Center for Marine Research。 This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License.

GBIF 註冊

此資源尚未向GBIF註冊

關鍵字

Climate Change; Occurrence; Algerian coast; coastal lagoon; invasive species

聯絡資訊

Hadjer HAMZA
  • 出處
PhD student
Laboratory of Applied Neuroendocrinology, Department of Biology, Faculty of Sciences, Badji Mokhtar University, Annaba 23000, Algeria
DZ
Rutger De Wit
  • 出處
Dr
"MARBEC, University of Montpellier, CNRS, IRD, Ifremer, INRAE, Place Eugène Bataillon, F-34095 Montpellier Cedex 5, France "
FR
Aicha Beya Mammeria
  • 元數據提供者 ●
  • 連絡人
Professor
University Algiers 1, Algeria
DZ

地理涵蓋範圍

Station1 : 36.877220N; 8.330830E Station2 : 36.887220N; 8.314440E Station3 36.909440N; 8.314440E

界定座標範圍 緯度南界 經度西界 [36.847, 8.282], 緯度北界 經度東界 [36.955, 8.37]

分類群涵蓋範圍

無相關描述

Phylum Mollusca, Tracheophyta

時間涵蓋範圍

起始日期 / 結束日期 2019-02-20 / 2019-12-20

計畫資料

Since 1964, various coastal ecosystems in the Mediterranean Sea (i.e., coastal lagoons, river deltas and harbours) have been invaded by the Asian date mussel A. senhousia. The dataset is part of the study that represents a new record of this invasive species in El Mellah Lagoon, representing the first report from coastal systems on the southern coast of the Algerian Basin (Western Mediterranean).

計畫名稱 North-South Partnership
經費來源 This project was partly funded by the MARBEC research centre through its IRD-supported “North-South Partnership” funding programme.
研究區域描述 El Mellah Lagoon is the only shallow, brackish coastal lagoon in Algeria and is located in the El-Kala National Park (UNESCO biosphere reserve) in north-eastern Algeria (36.89290N; 8.32623E). This lagoon is only connected to the Mediterranean Sea through a single long (900 m) and narrow (10–20 m) inlet.
研究設計描述 Benthic samples were collected monthly in the shallow subtidal (0.3 m to 0.5 m depth) at three stations in El Mellah Lagoon from February to December 2019.

取樣方法

Samples were collected monthly in the shallow subtidal (0.3 m to 0.5 m depth) at three stations in El Mellah Lagoon from February to December 2019.

研究範圍 El Mellah Lagoon, Algeria
品質控管 The taxonomy mapped to WoRMS; while for locations the coordinateUncertaintyInMeters was added for the Station 1 and station 3 because the coordinates were on the land. This can be justified by the fact that the lagoon surface periodically changes.

方法步驟描述:

  1. none

引用文獻

  1. Hamza Hadjer, Beya Mammeria Aicha, Bain Abdelmadjid, de Wit Rutger, Klein Judith (2022). First record of the invasive Asian date mussel Arcuatula senhousia (Benson, 1842) in El Mellah Lagoon (Southern coast of Algerian Basin, Western Mediterranean). Bioinvasions Records. 11 (3). 686-699. https://archimer.ifremer.fr/doc/00788/90034/

額外的詮釋資料