Fish assemblages on shipwrecks and natural rocky reefs strongly differ in trophic structure

Simon, Thiony; Joyeux, Jean‐Christophe; Pinheiro, Hudson T.

doi:10.1016/j.marenvres.2013.05.012

Cited by 50 publications

(36 citation statements)

References 34 publications

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“… Opistognathus aff. aurifrons Jordan & Thompson: Feitoza et al 2005: 732 (Brazilian Province in 35–54 m); Simon et al 2013b: 63 (listed); Pinheiro et al 2015: 15, color fig. S.37 (Trinidade Island and Dogaressa Seamount).…”

Section: Key To Brazilian Opistognathusmentioning

confidence: 99%

Review of Brazilian jawfishes of the genus Opistognathus with descriptions of two new species (Teleostei, Opistognathidae)

Smith-Vaniz¹,

Tornabene²,

Macieira³

2018

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A new species of jawfish, Opistognathusthionyisp. n., is described from the Vitória-Trindade Chain and Fernando de Noronha Archipelago off Brazil, a disjunct distribution of ca. 1,800 km. Opistognathusthionyi and its allopatric Caribbean sister-species, Opistognathusmaxillosus, both have a wide, fan-like upper margin of the subopercular flap and mostly over-lapping meristic data. The new species differs from O.maxillosus in having the darkest spot on the spinous dorsal fin, when present, between spines 2–5, versus always present between spines 6–9, the buccal area surrounding the esophageal opening pale versus very dark and fewer oblique scale rows in longitudinal series (45–52 vs. 69–85). A second new species, Opistognathusvicinussp. n., known from Brazil’s mainland, has completely over-lapping meristic values with its allopatric Caribbean sister-species O.whitehursti, but differs in lacking vomerine teeth and a supramaxilla and retaining the juvenile color pattern of the latter species in adults. Diagnoses, photographs, an identification key, and distributional maps are given for all Brazilian species of Opistognathus.Molecular phylogenetic analysis of partial cytochrome c oxidase subunit-I sequences indicates that specimens of the two allopatric pairs, O.thionyi – O.maxillosus and O.vicinus – O.whitehursti, form reciprocally monophyletic groups that differ from each other on average by 9 to 11%, with less than 1% average pair-wise genetic distance within-species. Similar patterns of phylogenetic structure were observed between reciprocally monophyletic (predominately allopatric) groups within nominal species of Opistognathusaurifrons, suggesting the possibility of at least two additional undescribed species from the Brazilian Province.

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Section: Key To Brazilian Opistognathusmentioning

confidence: 99%

Review of Brazilian jawfishes of the genus Opistognathus with descriptions of two new species (Teleostei, Opistognathidae)

Smith-Vaniz¹,

Tornabene²,

Macieira³

2018

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“…21 native scleractinians and five hydrocoral species) (Leão et al, 2003;Neves et al, 2006Neves et al, , 2008Amaral et al, 2008;Floeter et al, 2008). Nine reef fish species and three corals species were recorded for the first time for the Espírito Santo State (Leão et al, 2003;Floeter et al, 2008;Simon et al, 2013;Pinheiro et al, 2015b;pers. obs. by the authors) (Tables 1 and 2).…”

Section: Discussionmentioning

confidence: 96%

Newly discovered reefs in the southern Abrolhos Bank, Brazil: Anthropogenic impacts and urgent conservation needs

Mazzei

Bertoncini

Pinheiro

et al. 2017

Marine Pollution Bulletin

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The Abrolhos Bank is an area of high ecological, socio-economic importance and harbour the richest and most-extensive coral reefs in the South Atlantic. Here we report the discovery of shallow (12-25m depth) reef complex with ten large biogenic structures, intermediate between the typical mushroom-shaped pinnacles of the northern Abrolhos Bank (17°-18° S) and the small patch reefs found on the central/southern coast of the Espírito Santo State (19°-20° S). The newly discovered reefs harbour a relatively rich and abundant reef community, with 73 fish and 14 benthic cnidarian species, including endangered and commercially important ones. We discuss on urgent needs of properly mapping and understanding the ecological functioning of this reef system. Information provided here is a baseline for future impact evaluations, particularly considering the recent worst environmental disaster of Brazil from a dam collapse in Doce river that affected the region.

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“…The present field removal study only used artificial habitats, but both species are also associated with natural rock-reef structure in the Gulf of Mexico (Frazer and Lindberg 1994;Kurz 1995;Lingo and Szedlmayer 2006). Ecologically, artificial reefs are temporary compared with natural reefs and provide different structure, biotic communities, and ecological functions compared with natural habitats (Simon et al 2013;Cresson et al 2014;Ferrario et al 2016). In fact, artificial reefs may be considered disturbed habitat when compared with naturally occurring sand-mud substrates Fig.…”

Section: Discussionmentioning

confidence: 99%

Competitive interactions between gray triggerfish (Balistes capriscus) and red snapper (Lutjanus campechanus) in laboratory and field studies in the northern Gulf of Mexico

Simmons

Szedlmayer

2018

Can. J. Fish. Aquat. Sci.

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Field removal and laboratory studies examined competitive interactions between gray triggerfish (Balistes capriscus) and red snapper (Lutjanus campechanus). In field studies, all gray triggerfish and red snapper were counted and sizes estimated on 24 reef sites. Gray triggerfish were then removed from half of these reef sites, resulting in significantly fewer gray triggerfish on the removal reefs at the start of the experiment. After 7 months the experiment ended and reef sites were resurveyed. Gray triggerfish decreased on both treatments, while the mean number of red snapper did not differ between treatments; however, there were significantly more small (<400 mm total length) red snapper on reefs where gray triggerfish were removed. In seven laboratory growth trials (30 to 35 days each), red snapper held with gray triggerfish had significantly lower growth rates and numerous bite marks compared with red snapper alone. These competitive interactions indicate that management efforts to rebuild and increase gray triggerfish populations may have unintentional negative effects on red snapper populations, particularly for smaller fish.

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Fish assemblages on shipwrecks and natural rocky reefs strongly differ in trophic structure

Cited by 50 publications

References 34 publications

Review of Brazilian jawfishes of the genus Opistognathus with descriptions of two new species (Teleostei, Opistognathidae)

Review of Brazilian jawfishes of the genus Opistognathus with descriptions of two new species (Teleostei, Opistognathidae)

Newly discovered reefs in the southern Abrolhos Bank, Brazil: Anthropogenic impacts and urgent conservation needs

Competitive interactions between gray triggerfish (Balistes capriscus) and red snapper (Lutjanus campechanus) in laboratory and field studies in the northern Gulf of Mexico

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