First description of seagrass meadows from Fernando de Noronha archipelago in the tropical Southwestern Atlantic

A new species of scaly blenny, Labrisomus conditus sp. n., is described from Fernando de Noronha Archipelago, off northeastern Brazil. It differs from its Western Atlantic congeners by the following combination of characters: nuchal cirri when depressed not reaching dorsal-fin origin, 68 to 73 lateral line scales, first and second dorsal-fin spines slightly shorter than third spine and not flexible, numerous pale dots overall (light blue in life), opercular dark spot with incomplete and diffuse broad pale margin (orange in life). The new species is a territorial bottom-dweller in rocky shores and is found among algae and in crevices at depths from 0.5 to 6 m. Labrisomus conditus sp. n. feeds mostly on crustaceans (crabs, amphipods) and molluscs (snails, bivalves). The new species increases to five the species within the genus Labrisomus recorded from Southwestern Atlantic.

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A new cleaner species of Elacatinus (Actinopterygii: Gobiidae) from the Southwestern Atlantic

Zootaxa ◽

10.11646/zootaxa.1932.1.3 ◽

2008 ◽

Vol 1932 (1) ◽

pp. 27-32 ◽

Cited By ~ 8

Author(s):

IVAN SAZIMA ◽

ALFREDO CARVALHO-FILHO ◽

CRISTINA SAZIMA

Keyword(s):

New Species ◽

Distal Portion ◽

Oceanic Islands ◽

Northeastern Brazil ◽

Southwestern Atlantic ◽

Bright Yellow ◽

Fernando De Noronha ◽

Eye Diameter ◽

Blue Line ◽

Cleaning Stations

A new species of cleaner goby, Elacatinus phthirophagus sp. n., is described from Fernando de Noronha Archipelago, off northeastern Brazil. It differs from its congeners of the putative “randalli-evelynae” cleaning clade by the following combination of characters: mouth subterminal, pale (bright yellow in life) elliptical spot on dark snout, width of lateral pale (bright yellow in life) stripe almost equal as eye diameter (slightly narrower in live individuals), light purplish sheen (in life) extending laterally from below eye to tail origin, no blue line (in life) from below eye to end of opercular margin, teeth multiserial on the distal portion of both jaws, males with 3 enlarged and recurved teeth on dentary inner row. The new species was recorded at depths ranging from 3 to 18 m and is ubiquitous in the archipelago islets. It tends cleaning stations on coral heads, sponges, and rocky substrata, with up to 15 individuals present in large stations, particularly those on sponges. Elacatinus phthirophagus sp. n. was recorded to clean about 30 species of fish clients, including large carnivores such as the shark Carcharhinus perezi and smaller carnivores such as the grouper Cephalopholis fulva, besides small clients like the planktivorous damselfish Chromis multilineata and the zoobenthivorous butterflyfish Chaetodon ocellatus. The new species increases to three the number of cleaner gobies recorded for Southwestern Atlantic, one from the coast and two from oceanic islands.

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Turtle cleaners: reef fishes foraging on epibionts of sea turtles in the tropical Southwestern Atlantic, with a summary of this association type

Neotropical Ichthyology ◽

10.1590/s1679-62252010005000003 ◽

2010 ◽

Vol 8 (1) ◽

pp. 187-192 ◽

Cited By ~ 19

Author(s):

Cristina Sazima ◽

Alice Grossman ◽

Ivan Sazima

Keyword(s):

Reef Fish ◽

Fish Species ◽

Sea Turtles ◽

Reef Fishes ◽

Oceanic Islands ◽

Southwestern Atlantic ◽

Cleaning Symbiosis ◽

Turtle Species ◽

Fernando De Noronha ◽

Reef Fish Species

In the present study we record several instances of reef fish species foraging on epibionts of sea turtles (cleaning symbiosis) at the oceanic islands of Fernando de Noronha Archipelago and near a shipwreck, both off the coast of Pernambuco State, northeast Brazil. Nine reef fish species and three turtle species involved in cleaning are herein recorded. Besides our records, a summary of the literature on this association type is presented. Postures adopted by turtles during the interaction are related to the habits of associated fishes. Feeding associations between fishes and turtles seem a localized, albeit common, phenomenon.

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Unravelling the foraging behavior of the southern stingray, Hypanus americanus (Myliobatiformes: Dasyatidae) in a Southwestern Atlantic MPA

Neotropical Ichthyology ◽

10.1590/1982-0224-20180131 ◽

2019 ◽

Vol 17 (2) ◽

Author(s):

Renato H. A. Freitas ◽

Aline A. Aguiar ◽

Ana Karina C. H. A. Freitas ◽

Sergio M. Q. Lima ◽

Jean L. Valentin

Keyword(s):

Foraging Behavior ◽

Tidal Cycle ◽

Feeding Habits ◽

Decision Makers ◽

Foraging Strategies ◽

Ontogenetic Shift ◽

Southwestern Atlantic ◽

Environmental Stimulus ◽

Management Plans ◽

Fernando De Noronha

ABSTRACT Previous study suggested that the southern stingray (Hypanus americanus) displays a marked ontogenetic shift in its habitat use in the Fernando de Noronha Archipelago (FNA), an attractive touristic spot in Brazil, that could be associated with changes in its feeding habits and foraging strategies. Here, we conducted underwater visual surveys (~100 h a 3 years’ study) at this site to describe the foraging behavior of the same species in details and to assess diel patterns in activity. We observed that H. americanus is capable of several complex and highly plastic behaviors (we described more than 21 of them) while foraging. The foraging events’ timing appears to be related to the size (as well as sex) of the stingrays, environment and depth. In addition, our results support a segregation of habitat mediated by the size and sex of the stingrays, but it is able to modulate its foraging repertoire based mainly on environmental stimulus. Finally, we found that H. americanus forage intermittently throughout the day and tidal cycle, yet are less active during non-crepuscular periods and at flood and ebb tides. These results, coupled with the fact that the species uses both reef and beach environments, should be considered by decision makers in management plans.

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Review of the genus Malacoctenus (Actinopterygii: Labrisomidae) from the Southwestern Atlantic, with description of two new species

Zootaxa ◽

10.11646/zootaxa.4819.3.4 ◽

2020 ◽

Vol 4819 (3) ◽

pp. 499-520

Author(s):

ALFREDO CARVALHO-FILHO ◽

IVAN SAZIMA ◽

SERGIO MAIA QUEIROZ LIMA ◽

DANIEL ALMEIDA ◽

LIANA MENDES ◽

...

Keyword(s):

New Species ◽

Lateral Line ◽

Molecular Data ◽

Color Pattern ◽

Oceanic Islands ◽

Identification Key ◽

The Other ◽

Southwestern Atlantic ◽

Two New Species ◽

Fernando De Noronha

The labrisomid genus Malacoctenus from Southwestern Atlantic is reviewed. Two new species of scaly blennies formerly reported by several authors as Malacoctenus triangulatus are described. One is found at the oceanic islands Fernando de Noronha Archipelago and Atol das Rocas, and the other is distributed along the Brazilian coastline. The two new species differ from other species of the genus and from each other by different combinations of the number of lateral-line scales, number and size of head cirri, and color pattern. Molecular data also support species’ distinctiveness between M. triangulatus and the species described herein. Two additional recognized Brazilian species, M. delalandii and M. brunoi are described and illustrated and an identification key to all recognized Atlantic species is provided.

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A new species of Pasiphaea Savigny, 1816 (Crustacea, Decapoda, Pasiphaeidae) from the southwestern Atlantic

Zootaxa ◽

10.11646/zootaxa.4418.5.6 ◽

2018 ◽

Vol 4418 (5) ◽

pp. 493

Author(s):

THAIANA G. A. RODRIGUES ◽

FLAVIO A. ALVES-JÚNIOR ◽

IRENE A. CARDOSO

Keyword(s):

New Species ◽

Brazilian Coast ◽

Southwestern Atlantic ◽

The Third ◽

Anterior Half ◽

The World ◽

Fernando De Noronha ◽

A New Species

The genus Pasiphaea Savigny, 1816 (Caridea: Pasiphaeidae) includes 71 species, of which vast majority inhabit in the meso or bathypelagic zones in the world oceans. A new species is described herein, sampled during the project "ABRACOS 2" (Acoustic along the BRazilian COast) nearby the Rocas Atoll and Fernando de Noronha Archipelago, in Brazilian waters. Pasiphaea antea n. sp. appears close to Pasiphaea dorsolineatus Komai & Chan, 2012 described from off Hawaii, but is distinguished from the latter by the different shape of the rostrum, the mid-dorsal line of the carapace sharply carinate in the anterior half, and the possession of more numerous spiniform setae on the meri of the pereopods 1 and 2. This is the third species known from the southwestern Atlantic.

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New records of deep-sea prawn of the genus Gennadas Spence Bate, 1881 (Crustacea: Decapoda: Benthesicymidae) from Southwestern Atlantic

Zootaxa ◽

10.11646/zootaxa.4450.3.4 ◽

2018 ◽

Vol 4450 (3) ◽

pp. 376 ◽

Cited By ~ 1

Author(s):

FLAVIO DE ALMEIDA ALVES-JÚNIOR ◽

RACHEL DE JESUS FEIO DE LEMOS ◽

IRENE AZEVEDO CARDOSO ◽

MARINA DE SÁ LEITÃO CÂMARA DE ARAÚJO ◽

ARNAUD BERTRAND ◽

...

Keyword(s):

Deep Water ◽

Deep Sea ◽

New Records ◽

Southwestern Atlantic ◽

Fernando De Noronha ◽

Mid Atlantic Ridge ◽

New Occurrences

Here, we report the new occurrences of four deep-water prawn of the genus Gennadas in the southwestern Atlantic: G. gilchristi recorded from the Mid-Atlantic Ridge region; G. capensis recorded from Brazilian waters off Fernando de Noronha Archipelago, Atol das Rocas and Ceará Chain; G. talismani and G. scutatus recorded both to Mid-Atlantic Ridge and to Brazilian waters.

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Taxonomy of deep-sea shrimps of the Superfamily Oplophoroidea Dana 1852 (Decapoda: Caridea) from Southwestern Atlantic

Zootaxa ◽

10.11646/zootaxa.4613.3.1 ◽

2019 ◽

Vol 4613 (3) ◽

pp. 401

Author(s):

FLAVIO DE ALMEIDA ALVES-JÚNIOR ◽

ELINAI DOS SANTOS SILVA ◽

MARINA DE SÁ LEITÃO CÂMARA DE ARAÚJO ◽

IRENE CARDOSO ◽

ARNAUD BERTRAND ◽

...

Keyword(s):

Deep Sea ◽

Rio Grande ◽

Brazilian Coast ◽

Northeast Brazil ◽

Southwestern Atlantic ◽

Deep Waters ◽

Potiguar Basin ◽

The Family ◽

Fernando De Noronha ◽

Available Information

In this paper, we provide some available information about the occurrence and some taxonomic aspects of 19 species from the Superfamily Oplophoroidea in the southwestern Atlantic (Brazilian waters), with the update to 22 species of Oplophoroidea occurring in Brazilian waters. Samples were collected during two sets of surveys. The first was performed in 2009 and 2011 in the Potiguar Basin in northeast of Brazil (03–05°S; 38–35°W; between the States of Ceará and Rio Grande do Norte) under the framework of the project “Avaliação da biota bentônica e planctônica da Bacia Potiguar e Ceará (Bpot)”, with samples collected from bottom trawls in the continental slope at depth ranging from 150–2068 m. Second, under the in the framework of the ABRACOS (Acoustic along the Brazilian coast), performed in 2015 and 2017 on seamounts and offshore areas in Northeast Brazil (Ceará Chain, Rio Grande do Norte and Rocas Atoll, Fernando de Noronha Archipelago and Pernambuco State), with samples with pelagic micronekton and mesopelagic nets, in depths ranging from 50–1260 m. We highlight the occurrence of 14 species of the family Acanthephyridae and 5 species of the family Oplophoridae, including the first occurrences of five species to Brazilian deep waters: Acanthephyra kingsleyi Spence Bate, 1888, Ephyrina ombango Crosnier & Forest, 1973, Meningodora compsa (Chace, 1940), M. longisulca Kikuchi, 1985 and Systellapsis curvispina Crosnier, 1987. These records increase the knowledge on deep-sea shrimps occurring in Southwestern Atlantic.

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