The Ecology of Reef Fishes

A special issue of Fishes (ISSN 2410-3888).

Deadline for manuscript submissions: 30 September 2025 | Viewed by 201

Special Issue Editors


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Guest Editor
Marine Ecology and Conservation Lab, Centre for Environmental Sciences, Universidade Federal do Sul da Bahia, Porto Seguro 45810-000, BA, Brazil
Interests: coral reef fish; marine ecology; population dynamics; conservation biology; coral reef functional ecology; coral reef ecosystem dynamics

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Guest Editor
Marine Ecology and Conservation Lab, Centre for Environmental Sciences, Universidade Federal do Sul da Bahia, Porto Seguro 45810-000, BA, Brazil
Interests: fish early life stage; coral reef fish; reef fish ecology; conservation genetics; marine protected areas; community dynamics;

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Guest Editor
Pesquisa em Ictiologia e Ecologia de Recifes. Department of Zoology, Universidade Federal de Pernambuco, Cidade Universitária, Recife, 50670-901, PE, Brazil.
Interests: herbivory; bioacustics; populational ecology of endangered reef fishes; community functional ecology

Special Issue Information

Dear Colleagues,

 Coral reefs are among the most threatened ecosystems in the world, representing less than 1% of its surface area but concentrating approximately 25% of known marine biodiversity. In this context, the fish that inhabit coral reefs account for roughly 1 in 4 marine fish species. These species play a relevant ecological role in the functioning of reef systems; for example, reef fish are the primary top predators in reef food webs, they contribute to nutrient cycling and they are important bioengineers. Furthermore, fish are the primary macro-herbivores in reef environments, controlling the growth and development of algae, which are competitively superior to corals, and maintaining the reef development process. In general, there are eight key ecosystem processes that maintain the structure and functioning of coral reefs, with fish playing key roles in six of these eight processes. Conversely, despite the great importance of reef fish, a significant portion of these species are threatened by anthropogenic impacts such as fishing, habitat loss, and climate change, making these species vulnerable. Therefore, we invite researchers to submit papers that address topics related to the importance and relevance of reef fish as key components of the structure and functioning of coral reefs. We hope that this issue will contribute to compiling information on new aspects of reef fish ecology and culminate in better understanding and conservation of these species.

Prof. Dr. Carlos Werner Hackradt
Prof. Dr. Fabiana Cézar Félix-Hackradt
Prof. Dr. João Lucas Leão Feitosa
Guest Editors

Manuscript Submission Information

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Keywords

  • coral reef fish ecology
  • anthropogenic impacts
  • functional ecology
  • population dynamics
  • community structure
  • movement ecology
  • genetic diversity
  • reef fish conservation

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Published Papers (1 paper)

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Research

12 pages, 1687 KB  
Article
Reproductive Ecology of the Java Rabbitfish, Siganus javus, in the Southern South China Sea
by Takaomi Arai, Iy Vonne Tan, Fui Fui Ching and Norhayati Ahmad
Fishes 2025, 10(9), 441; https://doi.org/10.3390/fishes10090441 - 3 Sep 2025
Abstract
Fish reproductive biology influences their life history and can impact their vulnerability to fisheries; therefore, for sustainable management and development, a proper understanding is crucial. Reproductive biology, including maturation, spawning season, fecundity, and sex ratio, was examined throughout the year in the Java [...] Read more.
Fish reproductive biology influences their life history and can impact their vulnerability to fisheries; therefore, for sustainable management and development, a proper understanding is crucial. Reproductive biology, including maturation, spawning season, fecundity, and sex ratio, was examined throughout the year in the Java Rabbitfish, Siganus javus, in the southern South China Sea. This study is the first to examine reproductive traits by collecting a total of 339 S. javus specimens monthly from September 2017 to August 2018 through detailed gonad histology. The spawning season of female S. javus was mainly restricted to July, August, October, and December, whereas male fish were found to spawn throughout the year. Inter-species variations in the spawning season were observed within the genus, which is influenced by interspecific spawning strategies and regional environmental factors. The sex ratio close to 1:1 suggests that the fish population is in equilibrium in the region. The fecundity of S. javus ranged from 1.8 × 105 to 12 × 105, which was similar to that of other species in Siganus, suggesting less inter- and intra-species variation in fecundity within the family. The middle maturation stage was absent throughout the year, probably due to the different habitat uses during their life history. Reproductive biology might influence other biological aspects, such as migration and behaviour in the fish. Full article
(This article belongs to the Special Issue The Ecology of Reef Fishes)
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