scholarly journals Syndromes or Flexibility: Behavior during a Life History Transition of a Coral Reef Fish

PLoS ONE ◽  
2013 ◽  
Vol 8 (12) ◽  
pp. e84262 ◽  
Author(s):  
James R. White ◽  
Mark I. McCormick ◽  
Mark G. Meekan
Keyword(s):  
Life History ◽  
Coral Reef ◽  
Reef Fish ◽  
Coral Reef Fish

Life-history transitions of the coral-reef fish Elacatinus lori

2015 ◽  
Vol 86 (2) ◽  
pp. 637-650 ◽  
Author(s):  
A. J. Rickborn ◽  
P. M. Buston
Keyword(s):  
Life History ◽  
Coral Reef ◽  
Reef Fish ◽  
Coral Reef Fish

scholarly journals Response and Effect Traits of Coral Reef Fish

2021 ◽  
Vol 8 ◽  
Author(s):  
Jeneen Hadj-Hammou ◽  
David Mouillot ◽  
Nicholas A. J. Graham
Keyword(s):  
Life History ◽  
Coral Reef ◽  
Reef Fish ◽  
Coral Reef Fish ◽  
Selection Process ◽  
Pearson Correlation ◽  
Ecosystem Processes ◽  
Species Traits ◽  
Diel Activity ◽  
Functional Richness

The response-and-effect framework is a trait-based approach that seeks to break down the mechanistic links between ecosystem disturbances, species' traits, and ecosystem processes. We apply this framework to a review of the literature on coral reef fish traits, in order to illustrate the research landscape and structure a path forward for the field. Traits were categorized into five broad groupings: behavioral, life history, morphological, diet, and physiological. Overall, there are fewer studies linking effect traits to ecosystem processes (number of papers on herbivory, n = 14; predation, n = 12; bioerosion, n = 2; nutrient cycling, n = 0) than there are linking response traits to disturbances (climate change, n = 26; fishing, n = 20; pollution, n = 4). Through a network analysis, we show that the size and diet of fish are two of the most common response and effect traits currently used in the literature, central to studies on both ecosystem disturbances and processes. Behavioral and life history traits are more commonly shown to respond to disturbances, while morphological traits tend to be used in capturing ecosystem processes. Pearson correlation coefficients quantifying the strength of the relationships between the most commonly studied process, herbivory, and key effect traits (size, gregariousness, and diel activity) are provided. We find that the most popular cluster of traits used in functional diversity metrics (e.g., functional richness, functional dispersion) is comprised of size, diet, space use/position in the water column, diel activity, gregariousness, and mobility, which encompass three of the broad trait categories. Our assessment of the literature highlights that more research is needed to support an evidence-based selection of traits to understand and predict ecosystem functioning. In synthesizing the literature, we identify research gaps and provide an avenue toward a more robust trait-selection process.

Variation in Brain Organization of Coral Reef Fish Larvae according to Life History Traits

2014 ◽  
Vol 83 (1) ◽  
pp. 17-30 ◽  
Author(s):  
David Lecchini ◽  
Gael Lecellier ◽  
Rynae Greta Lanyon ◽  
Sophie Holles ◽  
Bruno Poucet ◽  
...  
Keyword(s):  
Life History ◽  
Coral Reef ◽  
Reef Fish ◽  
Coral Reef Fish ◽  
Life History Traits ◽  
Fish Larvae ◽  
Brain Organization

scholarly journals Reproductive timing and investment decisions of a protogynous hermaphroditic coral reef fish species

2021 ◽  
Author(s):  
◽  
Pauline Mitterwallner
Keyword(s):  
Life History ◽  
Body Size ◽  
Coral Reef ◽  
Reef Fish ◽  
Fish Species ◽  
Coral Reef Fish ◽  
Life History Theory ◽  
Trade Offs ◽  
Reef Fish Species ◽  
Allocation Strategies

<p>Life-history theory suggests that an organism must balance its available energy between two competing physiological processes to maximize fitness: reproduction and somatic growth. Energetic trade-offs are a fundamental concept of life history theory and form the basis of intra- and inter-specific variation in life-history strategies. In fishes, reproduction-growth trade-offs are an essential component of life-history optimization. This is particularly true for species with protogynous sex- change (the most common reproductive mode among coral reef fish species), where reproductive success rapidly and disproportionally increases with body size/ corresponding social status. In such systems, lifetime fitness is inherently linked to patterns of growth and energy allocation strategies determined by an individual’s size-specific rank within the dominance hierarchy. However, energy allocation strategies in a protogynous species may not only be a function of body size. Coral reef fish species are exposed to extremely variable environmental conditions and this can favour the evolution of strategies that utilize good times and avoid disadvantageous times for reproduction. Consequently, size- specific parental investment decisions may vary greatly in time and space according to environmental cues. My thesis focuses on the protogynous reef fish, Thalassoma hardwicke (the sixbar wrasse), which is extremely abundant on shallow coral reefs throughout the Indo-Pacific region. Specifically, I evaluate patterns of spawning and reproductive investment as a function of body size, social status, lunar phase and other environmental parameters. I address the question of whether females/males of differing size make different fitness-related decisions when away from spawning sites, and I evaluate context-dependency in these decisions. Finally, I will attempt to reconstruct the developmental histories (e.g., larval growth rates) of individuals from otoliths to evaluate potential relationships between developmental histories and fitness attributes.</p>

scholarly journals Multivariate life-history indices of exploited coral reef fish populations used to measure the performance of no-take zones in a marine protected area

2005 ◽  
Vol 62 (3) ◽  
pp. 679-692 ◽  
Author(s):  
Gavin A Begg ◽  
Bruce D Mapstone ◽  
Ashley J Williams ◽  
Samantha Adams ◽  
Campbell R Davies ◽  
...  
Keyword(s):  
Life History ◽  
Coral Reef ◽  
Great Barrier Reef ◽  
Reef Fish ◽  
Coral Reef Fish ◽  
Marine Protected Area ◽  
Fish Populations ◽  
Barrier Reef ◽  
Life History Parameters ◽  
Coral Trout

We investigate the use of multivariate life-history indices to assess the performance of no-take zones with respect to ameliorating the impacts of harvest on exploited coral reef fish populations in the Great Barrier Reef Marine Park. A range of life-history parameters were estimated for the two major target species of the Great Barrier Reef (GBR) line fishery, common coral trout (Plectropomus leopardus) and red throat emperor (Lethrinus miniatus), collected from five adjacent reefs (three of which were closed to all forms of fishing) in each of three geographically dispersed regions between 1995 and 1998. Life-history parameters were used to compare the status of populations on open and closed reefs over regions and years. Principal components (PC) analyses were used to effectively reduce the number of parameters to four significant PCs for each species, accounting for 84% and 94% of the total variation in the data for common coral trout and red throat emperor, respectively. We were able to clearly identify those populations that were sampled from reefs open or closed to fishing based on the multivariate descriptors of life-history parameters. The concurrent use of several life-history indices maximised our potential to differentiate changes related to no-take zones from background variation.

scholarly journals Reproductive timing and investment decisions of a protogynous hermaphroditic coral reef fish species

2021 ◽  
Author(s):  
◽  
Pauline Mitterwallner
Keyword(s):  
Life History ◽  
Body Size ◽  
Coral Reef ◽  
Reef Fish ◽  
Fish Species ◽  
Coral Reef Fish ◽  
Life History Theory ◽  
Trade Offs ◽  
Reef Fish Species ◽  
Allocation Strategies

<p>Life-history theory suggests that an organism must balance its available energy between two competing physiological processes to maximize fitness: reproduction and somatic growth. Energetic trade-offs are a fundamental concept of life history theory and form the basis of intra- and inter-specific variation in life-history strategies. In fishes, reproduction-growth trade-offs are an essential component of life-history optimization. This is particularly true for species with protogynous sex- change (the most common reproductive mode among coral reef fish species), where reproductive success rapidly and disproportionally increases with body size/ corresponding social status. In such systems, lifetime fitness is inherently linked to patterns of growth and energy allocation strategies determined by an individual’s size-specific rank within the dominance hierarchy. However, energy allocation strategies in a protogynous species may not only be a function of body size. Coral reef fish species are exposed to extremely variable environmental conditions and this can favour the evolution of strategies that utilize good times and avoid disadvantageous times for reproduction. Consequently, size- specific parental investment decisions may vary greatly in time and space according to environmental cues. My thesis focuses on the protogynous reef fish, Thalassoma hardwicke (the sixbar wrasse), which is extremely abundant on shallow coral reefs throughout the Indo-Pacific region. Specifically, I evaluate patterns of spawning and reproductive investment as a function of body size, social status, lunar phase and other environmental parameters. I address the question of whether females/males of differing size make different fitness-related decisions when away from spawning sites, and I evaluate context-dependency in these decisions. Finally, I will attempt to reconstruct the developmental histories (e.g., larval growth rates) of individuals from otoliths to evaluate potential relationships between developmental histories and fitness attributes.</p>

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