High intraspecific variation in the diet of the french angelfish Pomacanthus paru in the south-western Atlantic

Batista, Daniela; Muricy, Guilherme; Andréa, Bárbara R.; Villaça, Roberto Campos

doi:10.1590/s1679-87592012000300015

Cited by 13 publications

(8 citation statements)

References 24 publications

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“…Increasing relative abundance and feeding pressure of omnivores toward higher latitudes has been observed along the Brazilian coast (Ferreira et al ., ; Longo et al ., ). These omnivores change from herbivory to invertivory ontogenetically, seasonally or geographically (Ferreira et al ., ; Dubiaski‐Silva & Masunari, , ; Batista et al ., ). This behavioural and dietary plasticity may allow them to be abundant even at localities where herbivorous‐detritivorous fishes ( i.e .…”

Section: Discussionmentioning

confidence: 97%

Spatial patterns of fish standing biomass across Brazilian reefs

Morais

Ferreira

Floeter

2017

Journal of Fish Biology

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A large fish-count dataset from the Brazilian province was used to describe spatial patterns in standing biomass and test if total biomass, taxonomic and functional trophic structure vary across nested spatial scales. Taxonomic and functional structure varied more among localities and sites than among regions. Total biomass was generally higher at oceanic islands and remote or protected localities along the coast. Lower level carnivores comprised a large part of the biomass at almost all localities (mean of 44%), zooplanktivores never attained more than 14% and omnivores were more representative of subtropical reefs and oceanic islands (up to 66% of total biomass). Small and large herbivores and detritivores varied greatly in their contribution to total biomass, with no clear geographical patterns. Macrocarnivores comprised less than 12% of the biomass anywhere, except for two remote localities. Top predators, such as sharks and very large groupers, were rare and restricted to a few reefs, suggesting that their ecological function might have already been lost in many Brazilian reefs.

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Section: Discussionmentioning

confidence: 97%

Spatial patterns of fish standing biomass across Brazilian reefs

Morais

Ferreira

Floeter

2017

Journal of Fish Biology

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“…As sessile animals they interact in various ways with a wide variety of organisms (Bell, 2008), playing a key role in many ecological processes, such as competition, symbiosis and predation (e.g. Sarà & Vacelet, 1973; Ribeiro et al ., 2003; Wulff, 2006; López-Victoria et al ., 2006; Swain & Wulff, 2007; Batista et al ., 2012). Studies have shown that sponges' diversity patterns may result from their ecological interactions (e.g.…”

Section: Introductionmentioning

confidence: 99%

Exploitation of micro refuges and epibiosis: survival strategies of a calcareous sponge

et al. 2016

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Sponges interact in various ways with a wide variety of organisms in benthic communities and ecological interactions may influence the distribution, abundance and diversity of these organisms in different sites. Although several studies have already been developed for Demospongiae, knowledge of ecological interactions in the class Calcarea is lacking. Some calcareous sponges are considered weak competitors for space and to have developed strategies to survive in highly dynamic environments, such as exploitation of micro refuges and epibiosis. We aimed to investigate the influence of intra- and interspecific interactions in the abundance, growth and lifespan of the calcareous sponge Clathrina aurea in south-eastern Brazil. Two peaks of abundance and area coverage were observed during the studied year, probably associated with reproductive effort. We found no evidence of intra- or interspecific competition between the sponge and the benthic community. Clathrina aurea was found using parts of other organisms as substrate (epibiosis), such as algae, demosponges and corals. It was seen that the interaction of the sponge with coral polyps positively affects the lifespan of sponge individuals and the interstices of corals probably promote a micro refuge for C. aurea against competitors for space and predators.

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“…Remarkably, P. maculosus in the southern Arabian Gulf appears to be somewhat of a coralspecialist in terms of its diet, with corals making up 45-85% of its diet in a given sampling period, on average. In other regions, the family of Pomacanthidae is generally known to be omnivorous feeders, with sponges and algae dominating their diets (Andréa et al, 2007;Batista et al, 2012), with corals typically making up <2% of their stomach contents (ter Hofstede, 1998). It is also noteworthy that this family is highly diverse in its feeding ecology (Konow and Bellwood, 2011).…”

Section: Discussionmentioning

confidence: 99%

Environmental Extremes Are Associated with Dietary Patterns in Arabian Gulf Reef Fishes

et al. 2017

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Climate change is affecting the trophic ecology of reef fishes through changes in reef-associated food availability and fish feeding behavior. The southern Arabian Gulf is a thermally extreme environment, providing an opportunity to study fish diets on reefs with summer temperatures representative of next-century conditions elsewhere. Using 18S metagenomic analyses of stomach contents, we provide the first description of the dietary composition of three abundant reef fishes (Pomacanthus maculosus, Pomacentrus aquilus, and Pomacentrus trichrourus) from the thermally extreme southern Arabian Gulf, with five sampling periods across 1 year used to assess seasonal variation in diet. In total, 146 stomach content samples were sequenced, resulting in 9.6 million filtered reads that aligned to 17 classes in 14 phyla. Corals (Cnidaria, Anthozoa) dominated stomach contents of all three fishes (overall mean: 74.6, 40.6, and 21.2% of stomach reads, respectively), suggesting coral consumption to be characteristic of reef fish diet in the region. Sanger sequencing validated the presence of corals in the stomach contents and identified two common genera in the region, Porites and Platygyra, as part of the diet. Other common phyla included sponges and annelid worms (P. maculosus: 14.9%, 4.1%; P. aquilus: 5.9%, 16.7%; P. trichrourus: 8.2%, 14.7%, respectively), with the remainder comprised of 11 other phyla. Algae were virtually absent in diets of all three species. The P. maculosus diet was consistently coral/sponge dominated across the year, but there was substantial seasonal variation in the damselfishes, with diets dominated by coral in the hottest month (August; P. aquilus: 89.4%, P. trichrourus: 51.5%) but broadest in spring (March, May) when corals became less common (<19.8% each) and bivalves, free living ascidians, and various arthropods increased; parasitic cestodes were also abundant in damselfish stomachs in spring (mean: >16.4%). These results suggest that these fishes have developed a feeding ecology responsive to the fluctuating and extreme environmental conditions of their region. These results broaden our understanding of the diets of these three species and document the nature, complexity and temporal dynamics of reef fish diets in the most thermally extreme coral reef environment on earth.

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High intraspecific variation in the diet of the french angelfish Pomacanthus paru in the south-western Atlantic

Cited by 13 publications

References 24 publications

Spatial patterns of fish standing biomass across Brazilian reefs

Spatial patterns of fish standing biomass across Brazilian reefs

Exploitation of micro refuges and epibiosis: survival strategies of a calcareous sponge

Environmental Extremes Are Associated with Dietary Patterns in Arabian Gulf Reef Fishes

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