Joao Bráullio de Luna Sales

Joao Bráullio de Luna Sales
Federal University of Pará | UFPA · Biological Sciences Institute

PhD

About

52
Publications
13,287
Reads
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419
Citations
Citations since 2017
33 Research Items
369 Citations
2017201820192020202120222023020406080
2017201820192020202120222023020406080
2017201820192020202120222023020406080
2017201820192020202120222023020406080
Additional affiliations
July 2017 - May 2018
Federal University of Pará
Position
  • Professor (Assistant)
May 2014 - March 2020
Federal University of Para
Position
  • Professor (Assistant)
June 2008 - December 2012
Federal University of Para
Position
  • PhD Student
Education
March 2001 - September 2005
Universidade Federal do Pará-IECOS
Field of study
  • Botanic

Publications

Publications (52)
Article
Full-text available
The subclass Elasmobranchii, is a group of fish that has raised increasing concerns from a conservation perspective in recent years. The complex biology and reproductive modes of the elasmobranchs contribute to their vulnerability to overfishing. The fisheries that target elasmobranchs have intensified their activities in recent years, impacting th...
Preprint
Full-text available
Macroecological studies have mainly focused on exploring the relationships between body size and geographic distribution on large scales, whether regional, continental or even global, and most of them have been conducted on terrestrial species. Few studies have been conducted on aquatic species, and even fewer have considered the importance of phyl...
Article
The catfish family Heptapteridae, endemic in the Neotropical region, is composed of small- to medium-sized species. The genus Mastiglanis was monotypic until very recently and is often misidentified as Imparfinis because of similarities in diagnostic characters, including the length of maxillary barbels and limited pigmentation. We provide the firs...
Article
The marine catfishes of the family Ariidae present an ample range of life histories. Although most species are demersal, and are common in estuaries and coastal zones, species of the genus Bagre Cloquet, 1816, are pelagic and are typical of coastal and offshore environments. While the genus Bagre is a well-defined monophyletic group, the taxonomy o...
Article
Full-text available
Rhinoptera bonasus is a bento-pelagic and highly migratory species occurring from southern United States to northern Argentina. Due to overfishing effects, R. bonasus is currently at risk, classified by the IUCN Red List as vulnerable. Considering the lack of molecular data available for R. bonasus, this study aimed to describe the genetic variabil...
Article
Growing fishing pressure worldwide has led to an increase in the exploitation of cephalopod products in fish markets where these taxa were not traditionally consumed. Squid catches have surged to meet that demand, yet for many species little is known about their role in food webs. Doryteuthis sanpaulensis is an important squid species in southeaste...
Article
Full-text available
O presente estudo descreve a estrutura dos bosques de mangue do rio Cajutuba, no município de Marapanim, estado do Pará, Brasil. Para o estudo estrutural do bosque, foi utilizado o método do quadrante centrado (PCQM), para o qual foram demarcadas duas transecções em dois diferentes sítios (C1 e C2). A salinidade da água intersticial foi medida apen...
Article
Full-text available
Shallow-water marine invertebrate fauna is diverse in tropical latitudes but generally poorly known. This is in part due the remoteness of many of these regions, and a lack of locally trained taxonomists. In such cases, the ethnoknowledge (i.e., information acquired from the sociocultural references of a given social group) of traditional human pop...
Article
Full-text available
The validation of many anuran species is based on a strictly descriptive, morphological analysis of a small number of specimens with a limited geographic distribution. The Scinax Wagler, 1830 genus is a controversial group with many doubtful taxa and taxonomic uncertainties, due a high number of cryptic species. One example is the pair of species S...
Article
The biogeography of American loliginid squids has been improved in recent years, but certain key taxa have been missing. Given that the most accurate phylogenies and estimates of divergence times of common ancestors depend heavily on good taxonomic coverage we have reanalyzed the genus Lolliguncula in light of new samples that increase the geograph...
Chapter
Elasmobranchs are an ancient and diverse group of animals that inhabit aquatic ecosystems widely distributed around the globe. Due to late maturation and the production of few offspring, these organisms are currently among the most endangered species of all vertebrates. Overexploitation through predatory fishing and habitat degradation caused by an...
Article
Full-text available
Female sex workers (FSWs) represent a key population for the acquisition of sexually transmitted infections (STI) due to their social vulnerability and the risks associated with their occupation. This study was conducted to describe the sociodemographic characteristics and sexual behavior among FSWs in cities in northern Brazil, to determine the pr...
Article
Full-text available
The Serra Spanish Mackerel, Scomberomorus brasiliensis is one of the principal fishery resources found in the tropical and subtropical waters of the western South Atlantic. Declining catches of S. brasiliensis off the coast of northeastern Brazil indicate that this species is being overfished. Despite the importance of this species to local fisheri...
Article
Full-text available
Background: Syphilis is a sexually transmitted infection (STI) transmitted from person to person mainly by sexual intercourse or through vertical transmission during pregnancy. Female sex workers (FSWs) are exposed especially to syphilis infection, and besides all the efforts to control the spread of STIs, syphilis prevalence is still rising, main...
Article
Overfishing can lead to stock collapses of both target and bycatch species. In some cases, unregulated fishing activities can even drive species towards extinction. Batoids comprise a significant portion of the bycatch of fisheries targeting teleost fishes. In Brazil, the Amazon coast is the second largest landing area in the country for these orga...
Article
Overfishing can lead to stock collapses of both target and bycatch species. In some cases, unregulated fishing activities can even drive species towards extinction. Batoids comprise a significant portion of the bycatch of fisheries targeting teleost fishes. In Brazil, the Amazon coast is the second largest landing area in the country for these orga...
Article
Full-text available
The biogeography and conservation of elasmobranch species was increasingly addressed in the recent past, but the southwestern Atlantic Ocean fauna is still one of the least studied. Reliable delimitation of the distribution range of species is fundamental to conservation and development of fisheries management strategies. A recent molecular study o...
Article
Full-text available
The cephalopod fauna of the southwestern Atlantic is especially poorly-known because sampling is mostly limited to commercial net-fishing operations that are relatively inefficient at obtaining cephalopods associated with complex benthic substrates. Cephalopods have been identified in the diets of many large marine species but, as few hard structur...
Article
The biogeography and conservation of elasmobranch species was increasingly addressed in the recent past, but the southwestern Atlantic Ocean fauna is still one of the least studied. Reliable delimitation of the distribution range of species is fundamental to conservation and development of fisheries management strategies. A recent molecular study o...
Article
The Atlantic coast of South America is characterized by significant variation in environmental attributes, such as the salinity and transparency of the water, substrate, temperatures, and oceanic currents, which contribute to the existence of heterogeneous environments with distinct biotic and abiotic conditions. The present study shows that the As...
Article
Full-text available
Here, we report trading of endangered shark species in a world hotspot for elasmobranch conservation in Brazil. Data on shark fisheries are scarce in Brazil, although the northern and northeastern regions have the highest indices of shark bycatch. Harvest is made primarily with processed carcasses lacking head and fins, which hampers reliable speci...
Book
Full-text available
Chondrichthyes are a group of cartilaginous fish, where we have sharks, rays, and chimeras as members. This group plays an important role in aquatic ecology, as they act as predators throughout the food chain (e.g., sharks). However, many populations of Chondrichthyes are threatened by several factors (increased direct fishing, high mortality rate...
Chapter
Full-text available
The phylogenetic analysis of the Chondrichthyes has been the subject of intense debate over the past two decades. The principal relationships within the group based on the analysis of morphological traits are inconsistent with the available molecular topologies, and the phylogeny of these animals is highly controversial, at all levels, ranging from...
Article
Full-text available
Coastal and marine environments are characterized by a lack of evident physical barriers or geographic isolation, and it may be difficult to understand how divergence can arise and be sustained in marine environments. The identification of ‘soft’ barriers is a crucial step towards the understanding of gene flow in marine environments. The marine ca...
Conference Paper
Freshwater stingrays belonging to the Family Potamotrygonidae are a monophyletic elasmobranch group restricted to river basins in neotropical regions, They are a very diverse group of fishes found in most South American rivers, except those that drain toward to Pacific Ocean. They are present in all countries of South America except Chile. Brazil i...
Article
Full-text available
Squid of the genus Lolliguncula Steenstrup, 1881 are small bodied, coastal species capable of tolerating low salinity. Lolliguncula sp. are found exclusively in the New World, although only one of the four recognized species (Lolliguncula brevis) occurs in the Atlantic Ocean. Preliminary morphological analyses suggest that Lolliguncula brevis popul...
Article
Full-text available
Squid of the genus Lolliguncula Steenstrup, 1881 are small bodied, coastal species capable of tolerating low salinity. Lolliguncula sp. are found exclusively in the New World, although only one of the four recognized species (Lolliguncula brevis) occurs in the Atlantic Ocean. Preliminary morphological analyses suggest that Lolliguncula brevis popul...
Article
Full-text available
The genus Octopus occurs in tropical and temperate oceanic waters throughout the world, and currently includes 112 species, although the phylogenetic relationships among the different taxa are still poorly understood. The cosmopolitan Octopus vulgaris is one of the most widely analyzed cephalopods in genetic studies, primarily because of its ample...
Article
Full-text available
Pristis perotteti, the largetooth sawfish, is one of most endangered elasmobranchs because offisheries and habitat degradation. Its commercialization in Brazil is prohibited, but fresh or salted fillets of this fish can be found in markets, labeled as“sharks”. In this study we performed genetic analyses on“shark” samples from two important fishery-tradi...
Article
The present study aimed to demonstrate the effectiveness of the 5s rDNA gene for the identification of commercially-valuable species of cephalopod belonging to the families Loliginidae and Ommastrephidae. Our results demonstrate distinct banding patterns in each of the six species sampled (Loligo surinamensis; Loligo sanpaulensis; Lolliguncula brev...
Article
Full-text available
The present study describes the structural characteristics of the mangrove forest of the Cajutuba river, municipality of Marapanim, Pará state, Brazil. The point centered quarter method (PCQM) was used to analyze two transects at two different study sites (C1, C2). Three mangrove species were found: Rhizophora mangle L., Avicennia germinans (L.) L....
Conference Paper
Full-text available
Octopus vulgaris pertence ao filo Mollusca, classe Cephalopoda, um animal cosmopolita de águas tropicais, subtropicais e temperadas. Sua taxonomia é ainda motivo de controvérsia, principalmente pela carência de caracteres morfológicos marcantes para identificação das formas geográficas. Ferramentas moleculares de DNA tem sido usadas para auxiliar n...

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Projects

Projects (3)
Project
Over the last two decades, predatory fishing has put several representatives of elasmobranchs on the list of endangered animals. Surveys carried out in Brazil include, on this list, species that have already been abundant on the national coast. The decline in fish stocks, or even extinction, will have a direct impact on the economy, as well as on the environment as a whole. Monitoring through molecular identification of fish stocks, such as elasmobranchs (eg, rays), is of fundamental importance for future management plans to be applied to the different highly-preyed species on the Brazilian north coast. Thus, the objectives of this project, such as the specific identification of sharks and rays of the Brazilian north coast and the analysis of the genetic variability of elasmobranchs through different molecular methodology, may provide knowledge about the dynamics of the shark populations and their responses to exploration.
Project
Este livro será utilizado para reunir informações de diversas áreas de pesquisa dirigidos a um público de pesquisadores, acadêmicos, estudantes de doutorado e outros cientistas. Para obter mais informações sobre o tópico, prazos importantes e como participar, visite sua página de convite: http://www.intechopen.com/welcome/bf59bb24175f53cc35bebb8aecc0ab9c/
Project
Shark fisheries and its byproducts are a major threat to populations worldwide. Despite the negligence of artisanal fisheries into the fishing statistics, they cause severe damages to local populations, leading to local extinctions. This project aims to investigate the catch composition of shark and ray species being sold in the largest fish markets of Brazil's Northern coast through DNA barcoding.