scholarly journals Long-term effects of the 1998 coral bleaching event on reef fish assemblages

2006 ◽  
Vol 315 ◽  
pp. 237-247 ◽  
Author(s):  
KC Garpe ◽  
SAS Yahya ◽  
U Lindahl ◽  
MC Öhman
Keyword(s):  
Reef Fish ◽  
Coral Bleaching ◽  
Fish Assemblages ◽  
Bleaching Event ◽  
Long Term Effects

Change in the rocky reef fish fauna of the iconic Poor Knights Islands Marine Reserve in north-eastern New Zealand over 4 decades

2018 ◽  
Vol 69 (10) ◽  
pp. 1496
Author(s):  
David R. Schiel ◽  
Tony Ayling ◽  
Michael J. Kingsford ◽  
Christopher N. Battershill ◽  
J. Howard Choat ◽  
...  
Keyword(s):  
Reef Fish ◽  
Fish Species ◽  
Marine Reserve ◽  
Fish Fauna ◽  
Rocky Reef ◽  
Long Term Effects ◽  
Before And After ◽  
Negative Effect ◽  
Reef Fish Species

Marine reserves exhibit increases in targeted fish species, but long-term effects on biodiversity are poorly understood. Factors other than reserve status may affect decadal changes, including environmental change. We examined the fish fauna at the iconic Poor Knights Islands over 4 decades (1974–2016) before and after implementation of a no-take marine reserve in 1998. We document a substantial increase in commercially and recreationally targeted Chrysophrys auratus, which was virtually absent before 1994 but by 2016 had reached up to 11 fish per 500m2 (220 per hectare). There were also large changes to the fish community, including the decline of subtropical and coastal wrasses, some species with no change and others that increased significantly. Many declines occurred >20 years before the arrival of abundant C. auratus, suggesting the changes do not represent a trophic cascade. Furthermore, this normally benthic-feeding fish has adopted a mid-water foraging behaviour targeting planktivorous fish. The increase in C. auratus appears to be linked both to reserve status and catch regulations in the wider region. Overall, the data point to long-term environmental fluctuations from the late 1970s having a negative effect on the abundance of more than half the reef fish species at these islands.

scholarly journals Mass coral bleaching causes biotic homogenization of reef fish assemblages

2018 ◽  
Vol 24 (7) ◽  
pp. 3117-3129 ◽  
Author(s):  
Laura E. Richardson ◽  
Nicholas A. J. Graham ◽  
Morgan S. Pratchett ◽  
Jacob G. Eurich ◽  
Andrew S. Hoey
Keyword(s):  
Reef Fish ◽  
Coral Bleaching ◽  
Fish Assemblages ◽  
Biotic Homogenization

scholarly journals Exceptionally high but still growing predatory reef fish biomass after 23 years of protection in a Marine Protected Area

PLoS ONE ◽  
2021 ◽  
Vol 16 (2) ◽  
pp. e0246335
Author(s):  
Irene Rojo ◽  
José Daniel Anadón ◽  
José Antonio García-Charton
Keyword(s):  
Reef Fish ◽  
Carrying Capacity ◽  
Fish Assemblages ◽  
Marine Protected Area ◽  
Regional Scale ◽  
Trophic Levels ◽  
Trophic Groups ◽  
Total Recovery ◽  
Entire Study

Marine Protected Areas (MPAs) help replenish fish assemblages, though different trophic levels may show diverse recovery patterns. Long-term protection is required to achieve total recovery but poaching events may prevent the achievement of full carrying capacity. Here, we have analysed the effect of long-term protection on the entire reef fish community and the different trophic levels in the Cabo de Palos-Islas Hormigas MPA (SE Spain; SW Mediterranean Sea) in order to assess their recovery patterns after 23 years of protection. We compared the values for carrying capacity obtained with the maximum values achieved at regional scale, and we assessed the effect of a reduction in the surveillance over a few years, during which poaching events increased, on the recovery patterns. We found that, overall, biomass of fishes increased with time while density diminished. In particular, piscivorous and macro-invertivore fish increased while the other trophic groups remained constant or declined, suggesting top-down processes. For the entire study period, those trophic groups were approaching carrying capacity; however, when accounting only for the period in which enforcement was high and constant, they grew exponentially, indicating that full carrying capacity may have not been achieved yet. When compared to other Mediterranean MPAs, the Cabo de Palos-Islas Hormigas MPA showed values for biomass that were disproportionately higher, suggesting that local factors, such as habitat structure and associated oceanographic processes, may be responsible for the dynamics found. Our results help to understand the potential trajectories of fish assemblages over a consolidated MPA and highlight empirically how the reduction of surveillance in a period may change the recovery patterns.

Effects of Coral Bleaching and Coral Loss on the Structure and Function of Reef Fish Assemblages

2018 ◽  
pp. 265-293 ◽  
Author(s):  
M. S. Pratchett ◽  
C. A. Thompson ◽  
A. S. Hoey ◽  
P. F. Cowman ◽  
S. K. Wilson
Keyword(s):  
Reef Fish ◽  
Coral Bleaching ◽  
Fish Assemblages ◽  
Structure And Function ◽  
And Function

scholarly journals Changes in Biodiversity and Functioning of Reef Fish Assemblages following Coral Bleaching and Coral Loss

Diversity ◽  
2011 ◽  
Vol 3 (3) ◽  
pp. 424-452 ◽  
Author(s):  
Morgan S. Pratchett ◽  
Andrew S. Hoey ◽  
Shaun K. Wilson ◽  
Vanessa Messmer ◽  
Nicholas A.J. Graham
Keyword(s):  
Reef Fish ◽  
Coral Bleaching ◽  
Fish Assemblages

scholarly journals Long-Term Effects of the Cleaner Fish Labroides dimidiatus on Coral Reef Fish Communities

PLoS ONE ◽  
2011 ◽  
Vol 6 (6) ◽  
pp. e21201 ◽  
Author(s):  
Peter A. Waldie ◽  
Simon P. Blomberg ◽  
Karen L. Cheney ◽  
Anne W. Goldizen ◽  
Alexandra S. Grutter
Keyword(s):  
Coral Reef ◽  
Reef Fish ◽  
Coral Reef Fish ◽  
Fish Communities ◽  
Long Term Effects ◽  
Cleaner Fish ◽  
Labroides Dimidiatus

Coral bleaching and habitat effects on colonisation of reef fish assemblages: An experimental study

2011 ◽  
Vol 94 (1) ◽  
pp. 16-23 ◽  
Author(s):  
Saleh A.S. Yahya ◽  
Martin Gullström ◽  
Marcus C. Öhman ◽  
Narriman S. Jiddawi ◽  
Mathias H. Andersson ◽  
...  
Keyword(s):  
Experimental Study ◽  
Reef Fish ◽  
Coral Bleaching ◽  
Fish Assemblages

Development and Stability of Fish Assemblages after Lime Treatment

1991 ◽  
Vol 48 (4) ◽  
pp. 546-554 ◽  
Author(s):  
Magnus Appelberg ◽  
Erik Degerman
Keyword(s):  
Species Interactions ◽  
Fish Assemblages ◽  
Negative Relationship ◽  
Habitat Diversity ◽  
Long Term Effects ◽  
Lime Treatment ◽  
Physical And Chemical Variables ◽  
Physical And Chemical ◽  
Species Proportions

Long-term effects of limestone treatment on fish populations in acidified lakes in Sweden have been examined since 1983 to assess the development and stability of fish assemblages after lime treatment. In total, 77 lakes were sampled twice using standardized methods between 1983 and 1988. The lakes were limed 1–16 yr before the second sampling. Physical and chemical variables and the fish data were reduced using PCA ordination and the resulting relationships were analyzed using linear regression and ANOVA. Relationships between the fish assemblage characteristics and the environmental factors were highly dependent on the species composition of the assemblages. The number and diversity of fish species were correlated with both the extent of acidification and habitat diversity of the lakes. The importance of species interactions after lime treatment was suggested by a negative relationship between changes in the scores of community along the first component of the fish PCA and changes along two of the other species components between the two samplings. Despite a weak tendency towards reduced variability in species proportions as time passed since the first liming, the development of community stability, expressed as lack of change in species proportions, was insignificant.

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