Monitoring long-term spatial and temporal trends of the infaunal community characteristics along the shallow waters of the Mediterranean coast of Israel

Hadas Lubinevsky, Barak Herut, Moshe Tom

Research output: Contribution to journalArticlepeer-review

Abstract

Sandy sediment and its infauna were annually sampled along the shallow waters of the Israeli coast during the 2005–2016 period, as a part of the Israeli National Environmental Program framework, aiming to detect anthropogenic interference in that province by monitoring changes in the species composition, abundance, and diversity of the infaunal communities and in accompanied abiotic parameters: the levels of total organic carbon and a series of heavy metals and the site-specific grain size distribution. The > 250-μm fraction of the fauna was segregated from the sampled sediment and was identified to species or higher taxonomic level. Three spatial biotopes were determined based on their unique faunal composition, Haifa Bay, Haifa harbor, and the southern coast. Species homogeneity among samples of each biotope was evaluated. Temporal and spatial changes of the species composition, abundance, and diversity were calculated for each biotope, mostly revealing random annual fluctuations. Only two minor temporal trends were observed: two spatially identical and temporally different faunal communities in the southern coast biotope, distinguishing the 2005–2007 and 2008–2016 periods, and a slight increase in the number of species across time in the two Haifa Bay provinces. Total organic carbon was highly correlated to the faunal composition with the highest organic carbon levels in the Haifa harbor biotope. The biotopes’ mutually occurring abundant species were sufficient to determine biotope borders and the contribution of intermittently sampled rare species, including the zoogeographically Indo-Pacific originated ones was feeble, important only to identify species migration and faunistics. Practically, three sampling sites along the Israeli shallow soft substrate, corresponding to the defined spatial biotopes, are sufficient to monitor the effect of environmental changes. Seasonal sampling twice a year is recommended as well as more accurate species identification using molecular taxonomy.

Original languageEnglish
Article number724
JournalEnvironmental Monitoring and Assessment
Volume191
Issue number12
DOIs
StatePublished - 1 Dec 2019
Externally publishedYes

Bibliographical note

Funding Information:
The study was supported by the Israeli Ministries of Environmental Protection and Energy through the national monitoring program in Israel’s Mediterranean Waters. The sampling effort was led during the years 2005–2012 by Dr. Bella Galil who is highly appreciated. The commitment and assistance of the crew of R/V Shikmona and of the research assistants who participated in the sampling cruises and performed the laboratory tasks are deeply thanked, especially Ms. Eva Misrahi. The taxonomists who performed or supported the identification are thanked. They are Dr. Sabrina Lo Brutto, University of Palermo, Italy (Amphipoda); Dr. Graham Bird, Marine Biologist, Kāpiti, New Zealand (Tanaidacea); Dr. Jordi Corbera, Institut Cartografic de Catalunya, Spain (Cumacea); Dr. Bella Galil, Israel Oceanographic and Limnological Research (Decapoda); Dr. Cesare Bogi, Italy (Mollusca), Dr. Rony Huys, Natural History Museum, London, UK (Hexanauplia).

Publisher Copyright:
© 2019, Springer Nature Switzerland AG.

Keywords

  • Abundance
  • Biotopes
  • Marine fauna
  • Sandy bottom
  • Species composition
  • Species diversity

ASJC Scopus subject areas

  • Environmental Science (all)
  • Pollution
  • Management, Monitoring, Policy and Law

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