Mangrove habitat use by juvenile reef fish: meta-analysis reveals that tidal regime matters more than biogeographic region

Igulu, Mathias M., Nagelkerken, Ivan, Dorenbosch, Martijn, Grol, Monique G. G., Harborne, Alastair R., Kimirei, Ismael A., Mumby, Peter J., Olds, Andrew D. and Mgaya, Yunus D. (2014) Mangrove habitat use by juvenile reef fish: meta-analysis reveals that tidal regime matters more than biogeographic region. PloS One, 9 12: 1-20. doi:10.1371/journal.pone.0114715

Author Igulu, Mathias M.
Nagelkerken, Ivan
Dorenbosch, Martijn
Grol, Monique G. G.
Harborne, Alastair R.
Kimirei, Ismael A.
Mumby, Peter J.
Olds, Andrew D.
Mgaya, Yunus D.
Title Mangrove habitat use by juvenile reef fish: meta-analysis reveals that tidal regime matters more than biogeographic region
Journal name PloS One   Check publisher's open access policy
ISSN 1932-6203
Publication date 2014-12-31
Year available 2014
Sub-type Article (original research)
DOI 10.1371/journal.pone.0114715
Open Access Status DOI
Volume 9
Issue 12
Start page 1
End page 20
Total pages 20
Place of publication San Francisco CA, United States
Publisher Public Library of Science
Language eng
Subject 2700 Medicine
1300 Biochemistry, Genetics and Molecular Biology
1100 Agricultural and Biological Sciences
Abstract Identification of critical life-stage habitats is key to successful conservation efforts. Juveniles of some species show great flexibility in habitat use while other species rely heavily on a restricted number of juvenile habitats for protection and food. Considering the rapid degradation of coastal marine habitats worldwide, it is important to evaluate which species are more susceptible to loss of juvenile nursery habitats and how this differs across large biogeographic regions. Here we used a meta-analysis approach to investigate habitat use by juvenile reef fish species in tropical coastal ecosystems across the globe. Densities of juvenile fish species were compared among mangrove, seagrass and coral reef habitats. In the Caribbean, the majority of species showed significantly higher juvenile densities in mangroves as compared to seagrass beds and coral reefs, while for the Indo-Pacific region seagrass beds harbored the highest overall densities. Further analysis indicated that differences in tidal amplitude, irrespective of biogeographic region, appeared to be the major driver for this phenomenon. In addition, juvenile reef fish use of mangroves increased with increasing water salinity. In the Caribbean, species of specific families (e.g. Lutjanidae, Haemulidae) showed a higher reliance on mangroves or seagrass beds as juvenile habitats than other species, whereas in the Indo-Pacific family-specific trends of juvenile habitat utilization were less apparent. The findings of this study highlight the importance of incorporating region-specific tidal inundation regimes into marine spatial conservation planning and ecosystem based management. Furthermore, the significant role of water salinity and tidal access as drivers of mangrove fish habitat use implies that changes in seawater level and rainfall due to climate change may have important effects on how juvenile reef fish use nearshore seascapes in the future.
Keyword Shallow water biotopes
Seagrass beds
Community structure
Gazi Bay
Replanted mangroves
Feeding habitats
Tropical estuary
Nursery abitats
Ishigaki Island
Q-Index Code C1
Q-Index Status Confirmed Code
Grant ID FT120100183
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2015 Collection
School of Biological Sciences Publications
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