Special Issue "Research on the Aquatic Species Biodiversity and Morphology"

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Biodiversity and Functionality of Aquatic Ecosystems".

Deadline for manuscript submissions: 18 August 2023 | Viewed by 775

Special Issue Editors

Prof. Dr. Maria Balsamo
E-Mail Website
Guest Editor
Department of Biomolecular Sciences (DiSB), University of Urbino, Via Cà Le Suore, 61029 Urbino, Italy
Interests: gastrotrich; taxonomy; systematics; meiofauna biodiversity; lower metazoan phylogeny; reproductive biology; placozoa
Dr. Federica Semprucci
E-Mail Website
Guest Editor
Department of Biomolecular Sciences (DiSB), University of Urbino, Via Cà Le Suore, 61029 Urbino, Italy
Interests: meiofauna; nematoda; taxonomy; benthic biodiversity; pollution; ecological quality assessment
Special Issues, Collections and Topics in MDPI journals
Dr. Loretta Guidi
E-Mail Website
Guest Editor
Department of Biomolecular Sciences (DiSB), University of Urbino, Via Cà Le Suore, 61029 Urbino, Italy
Interests: meiofauna; gastrotrich; taxonomy; phylogeny; morphology; biodiversity

Special Issue Information

Dear Colleagues,

About 70% of the Earth’s surface is covered with water. Aquatic ecosystems include rivers and streams, ponds and lakes, estuaries, oceans, and their associated fauna, which have evolved and adapted to these habitats over millions of years. Therefore, aquatic ecosystems are essential reservoirs of biological diversity but also are among the most threatened systems in the world. This Special Issue deals with zoobenthic biodiversity both in marine and freshwater ecosystems and its importance in the biological processes, ecosystem functioning, and conservation programs. In detail, topics include:

  • Biodiversity assessment with traditional as well as innovative techniques;
  • Faunistic surveys;
  • Global patterns of species dispersion and distribution;
  • Endemic and/or invasive species;
  • Loss and changes of biodiversity and structure of animal communities related to natural and anthropogenic disturbance;
  • Conservation and management of biodiversity;
  • Role of morphology in integrative taxonomy;
  • Morphological and functional adaptations of species to the habitat;
  • Morphological characters in the study of species’ reproductive cycles;
  • Role of morphological features in phylogenetic studies.

Prof. Dr. Maria Balsamo
Dr. Federica Semprucci
Dr. Loretta Guidi
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Water is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2200 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • free-living animals
  • adaptations
  • microscopy
  • macrozoobenthos
  • meiobenthos
  • systematics
  • taxonomy
  • molecular analysis

Published Papers (1 paper)

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Research

Article
New Data on Reproductive System and Spermatozoa Confirm Macrodasys as a Model in Comparative Reproductive Analysis in Macrodasyida (Gastrotricha)
Water 2022, 14(19), 3085; https://doi.org/10.3390/w14193085 - 01 Oct 2022
Viewed by 564
Abstract
Gastrotricha Macrodasyida, aquatic worms, are primarily hermaphrodites with internal cross-fertilization and indirect sperm transfer. Insightful information on this matter dates to 1978 and derives from an illuminating work focused on two Macrodasys species. The role as a “model” of this taxon clashes, however, [...] Read more.
Gastrotricha Macrodasyida, aquatic worms, are primarily hermaphrodites with internal cross-fertilization and indirect sperm transfer. Insightful information on this matter dates to 1978 and derives from an illuminating work focused on two Macrodasys species. The role as a “model” of this taxon clashes, however, with the relative paucity of data concerning the ultrastructure of the accessory organs involved in the sperm transfer. Therefore, we have undertaken a new study on three additional species of Macrodasys focusing on the frontal and caudal organs and also on the spermatozoa. Our observations confirmed the structural plan of the reproductive system reported for the genus, but found some differences concerning the accessory reproductive organs. Most importantly, we found spermatozoa inside the caudal organ of several single specimens, suggestive of a more plausible hypothesis about sperm transfer modality in Macrodasys. In the spermatozoa, the position of the mitochondrion outside rather than inside the nucleus has been confirmed as a major difference between the spermatozoa of Macrodasys species and those of the other Macrodasyida. We suggest that the peculiar structure of the mature spermatozoon of Macrodasys could derive from an incomplete process of spermatogenesis and hence it would be useful to infer phylogenetic alliances. Full article
(This article belongs to the Special Issue Research on the Aquatic Species Biodiversity and Morphology)
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