Symbiotic Invertebrates in Coral Reef Communities

A special issue of Diversity (ISSN 1424-2818). This special issue belongs to the section "Marine Diversity".

Deadline for manuscript submissions: closed (20 June 2023) | Viewed by 5052

Special Issue Editors


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Guest Editor
1. Faculty of Biology, Shenzhen MSU-BIT University, Shenzhen 518172, China
2. Department of Invertebrate Zoology, Biological Faculty, Lomonosov Moscow State University, Moscow, Russia
3. Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, Russia
Interests: crustaceans; corals; invertebrates; symbiosis; parasitism; commensalism; marine biology; biodiveristy

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Guest Editor
Laboratory of Ecology and Morphology of Marine Invertebrates, A.N. Severtzov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, Russia
Interests: coral reefs; crustaceans; polychaetes; symbiosis; parasitism; commensalism; marine biology

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Guest Editor
School of Environmental and Life Sciences, The University of Newcastle, 10 Chittaway Road, Ourimbah, NSW 2258, Australia
Interests: estuarine ecology; environmental impacts; invertebrate zoology; invasive species

Special Issue Information

Dear Colleagues,

Inhabitants of communities associated with the environment-forming scleractinians and octocorals are astonishingly unique.  Yet, despite significant research efforts over the last century to study the world’s oceans, species composition and relationships among the inhabitants of these communities remain poorly understood. Most of the interspecific relationships of animals living in shallow and deep-sea coral communities are based on various and often puzzling symbiotic interactions (broadly considered commensal, mutualistic and parasitic) between two or more animal species living on corals themselves or other inhabitants (sponges, sea anemones, polychaetes, crustaceans, echinoderms, ascidians, fish).  The disproportionate number of studies of different taxa of associated symbiotic invertebrates should also be noted.  Some of these taxa (such as microscopic copepod crustaceans living on corals and other invertebrates) have received less attention, despite their species richness, due simply to their tiny size, and the difficulty of sampling and studying them.  Research on the biodiversity and ecology of the inhabitants of coral communities that form symbiotic and hypersymbiotic complexes has become increasingly relevant over the last several decades.  This research is critical to better understanding the changes and sustainability of the Anthropocene’s natural and artificial coral communities.

This Special Issue of Diversity will publish research papers on the diversity, morphology, distribution, development, phylogeny and ecology of symbiotic invertebrates living on corals, other invertebrates and the fish of coral communities.  We aim to highlight the different kinds of studies on coral communities. We invite researchers to submit not only original papers and reports detailing interesting findings, but also reviews on various related topics. Our hope is that these contributions will help improve the current understanding of the diversity, biology and role of symbiotic invertebrates in coral communities.

Dr. Viatcheslav Ivanenko
Dr. Temir A. Britayev
Dr. Maria Schreider
Guest Editors

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Keywords

  • biodiversity
  • symbiosis
  • invertebrates
  • corals
  • cryptofauna
  • ecology
  • conservation
  • monitoring

Published Papers (2 papers)

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Research

12 pages, 2325 KiB  
Article
Density and Bleaching of Corals and Their Relationship to the Coral Symbiotic Community
by Temir A. Britayev, Roman A. Petrochenko, Yulia A. Burmistrova, Thanh Hai Nguyen and Fedor V. Lishchenko
Diversity 2023, 15(3), 456; https://doi.org/10.3390/d15030456 - 19 Mar 2023
Cited by 5 | Viewed by 1965
Abstract
Corals provide an important habitat for diverse fauna. The habitat is especially rich in branching species. Each colony harbors several species and dozens of individuals, forming an integrated symbiotic community. Factors affecting the diversity and abundance of coral symbionts are poorly understood. The [...] Read more.
Corals provide an important habitat for diverse fauna. The habitat is especially rich in branching species. Each colony harbors several species and dozens of individuals, forming an integrated symbiotic community. Factors affecting the diversity and abundance of coral symbionts are poorly understood. The present study tested experimentally the relationship between the population density of coral Pocillopora verrucosa and the diversity and abundance of symbionts in planted coral fragments exposed for three months. Colony size and bleaching were also considered as two additional factors. We demonstrated that, even at the early stage of colony formation, the diversity of obligate symbionts on planted corals in Nha Trang Bay was higher than the diversity of any other studied local faunas of the world’s ocean. Species richness and the abundance of symbionts were positively related to colony size and density, while no impact of bleaching was found. Species richness and the abundance of obligate symbionts increased with host population density, while in facultative symbionts, these indices decreased. We hypothesized that the negative effect of host population density on species richness and the abundance of facultative symbionts is caused by the competitive pressure of obligates, which increases with their abundance. The reasons for the different responses of obligate and facultative symbionts to host density were considered. Full article
(This article belongs to the Special Issue Symbiotic Invertebrates in Coral Reef Communities)
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16 pages, 3024 KiB  
Article
Resource Partitioning by Corallivorous Snails on Bonaire (Southern Caribbean)
by Lukas Verboom and Bert W. Hoeksema
Diversity 2023, 15(1), 34; https://doi.org/10.3390/d15010034 - 28 Dec 2022
Cited by 1 | Viewed by 2310
Abstract
A biodiversity survey on three corallivorous snails (Mollusca: Gastropoda) was performed at 28 sites around the island of Bonaire to assess their distribution patterns and associated host corals. The snails and their hosts were identified and counted in three depth zones: 5–10, 10–20, [...] Read more.
A biodiversity survey on three corallivorous snails (Mollusca: Gastropoda) was performed at 28 sites around the island of Bonaire to assess their distribution patterns and associated host corals. The snails and their hosts were identified and counted in three depth zones: 5–10, 10–20, and 20–30 m. The snails were Coralliophila galea and C. salebrosa (Muricidae: Coralliophilinae), and Cyphoma gibbosum (Ovulidae: Simniinae). All three species were widespread around the island without apparent interspecific geographical variation. Coralliophila galea was found exclusively on scleractinian corals, Coralliophila salebrosa almost exclusively on octocorals, and Cyphoma gibbosum only on octocorals. Coralliophila salebrosa showed more dietary overlap with Cyphoma gibbosum than with Coralliophila galea. Coralliophila galea was the most commonly encountered species with the largest number of host species. Owing to its hosts distribution, this species also showed a greater maximum depth and a wider bathymetrical range than the other two snails. The other two snails were shallower and their depth ranges did not differ significantly. Host-coral size did not seem to have influence on the number of snails per host. Coral damage caused by the snails was visible but appeared to be low, causing no mortality in Bonaire, which suggests that the relation with their hosts is more parasitic than predatory. Because these three corallivores have occasionally been reported to occur as outbreaks in other Caribbean localities and may act as vectors in the dispersal of coral diseases, it is recommended that future studies should focus on their population dynamics. Full article
(This article belongs to the Special Issue Symbiotic Invertebrates in Coral Reef Communities)
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