Deep-Sea Animal Biodiversity and Ecology

A special issue of Animals (ISSN 2076-2615). This special issue belongs to the section "Aquatic Animals".

Deadline for manuscript submissions: closed (13 August 2023) | Viewed by 1239

Special Issue Editor


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Guest Editor
Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal
Interests: deep-sea; chemosynthetic habitats; biodiversity; microbial symbiosis; food webs

Special Issue Information

Dear Colleagues, 

Deep-sea ecosystems are of immense importance for biogeochemical processes and cycles at a global scale with a direct impact on biodiversity. Even though technological progress has eased access to the deep ocean, it still remains largely unexplored. During the last few decades, there has been a dramatic increase in the scientific exploration of different deep ocean ecosystems, but our knowledge of the faunal communities within these systems is still limited for many locations. Increasing anthropogenic pressures on deep-sea ecosystems, from resource exploration and exploitation to pollution and climate change, will lead to a loss of biodiversity in deep-sea ecosystems, thus affecting their structure and function. Improved knowledge is needed to effectively support the emerging ocean economy and manage these emerging pressures.

This Special Issue invites novel contributions in the form of critical reviews and research papers addressing deep-sea biodiversity and ecology, with a focus on topics including but not limited to:

  • Biodiversity and functioning of deep-sea ecosystems;
  • Biogeography and evolution of deep-sea organisms;
  • Taxonomics (metagenomics, proteomics);
  • Food web and ecosystem structure;
  • Metazoan adaptations, life-history traits and connectivity;
  • Technological advances (imaging and visualization techniques, underwater imagery and automated species classification);
  • Species distribution modelling.

Dr. Clara F. Rodrigues
Guest Editor

Manuscript Submission Information

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Keywords

  • deep-sea ecosystems
  • taxonomy
  • community structure
  • trophic ecology

Published Papers (1 paper)

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Research

24 pages, 3100 KiB  
Article
The Impact of Sea Ice Loss on Benthic Communities of the Makarov Strait (Northeastern Barents Sea)
by Lyudmila V. Pavlova, Alexander G. Dvoretsky, Alexander A. Frolov, Olga L. Zimina, Olga Yu. Evseeva, Dinara R. Dikaeva, Zinaida Yu. Rumyantseva and Ninel N. Panteleeva
Animals 2023, 13(14), 2320; https://doi.org/10.3390/ani13142320 - 15 Jul 2023
Cited by 3 | Viewed by 926
Abstract
The continental shelf of the northeastern Barents Sea is presently experiencing a weak influx of Atlantic water from the west. In recent times, warming in Arctic regions has led to an increase in extended ice-free periods in this area, instead of significantly elevating [...] Read more.
The continental shelf of the northeastern Barents Sea is presently experiencing a weak influx of Atlantic water from the west. In recent times, warming in Arctic regions has led to an increase in extended ice-free periods in this area, instead of significantly elevating water temperatures. The implications of this phenomenon on the structure and functioning of benthic communities were investigated during the autumn of 2019 within the Makarov Strait, located in the southwestern part of the St. Anna Trough. The macrozoobenthic communities exhibited a clear connection with the duration of ice-free periods. This variable influenced a vertical carbon flux, which subsequently served as the primary predictor for faunal abundance and diversity, as demonstrated by redundancy and correlation analyses. Two faunal groups were identified, corresponding to short and long open-water periods. Both groups had similar alpha diversity (65 ± 6 and 61 ± 9 species per station) and biomasses (39 ± 13 and 47 ± 13 g m−2) but displayed differing abundances (1140 ± 100 vs. 4070 ± 790 ind. m−2) and other diversity indices. We observed a decline in the proportion of polychaetes, accompanied by an increase in the proportion and diversity of bivalves, as well as a rise in the abundance of infaunal species, sub-surface deposit feeders, and mobile suspension feeders, in response to the increasing vertical carbon flux. The potential increase in anthropogenic pressures related to oil development in the northeastern Barents Sea highlights the importance of our study for conservation and monitoring efforts in the region. Full article
(This article belongs to the Special Issue Deep-Sea Animal Biodiversity and Ecology)
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