Leonardo Cruz da Rosa

Universidade Federal de Sergipe · Departamento de Engenharia de Pesca e Aquicultura

This study aimed at analysing the population structure and reproductive aspects of Callinectes ornatus present in the bycatch of shrimp fisheries off Sergipe (northeastern Brazil), and at comparing the findings with other regions. Samples were obtained monthly from shrimp trawlers based in the Pirambu municipality (11°S–37°W) from May/2015 to May/2...

This study recorded, for the first time, the presence of the azooxanthellate colonial octocoral Carijoa riisei (Carijoidae) in the state of Sergipe, Brazil. In September 2021, colonies of C. riisei were observed attached to a floating pier in the estuary of the Vaza-Barris River, in the central region of the Sergipe coastline. These colonies were p...

O objetivo deste trabalho é reportar pela primeira vez a ocorrência das amêijoas asiáticas Corbicula fluminea e Corbicula largillierti no rio Jacarecica, nordeste do Brasil. Dados sobre abundância e classes de tamanho de ambas as espécies também são fornecidos. Esse registro contribui para uma avaliação mais abrangente sobre a distribuição dessas d...

FIRST RECORD OF THE OCTOCORAL CARIJOA RIISEI (DUCHASSAING & MICHELOTTI, 1860) FOR THE STATE OF SERGIPE, BRAZIL

FIRST RECORD OF THE OCTOCORAL CARIJOA RIISEI (DUCHASSAING & MICHELOTTI, 1860) FOR THE STATE OF SERGIPE, BRAZIL

Gymnurid rays are found in tropical, subtropical and temperate regions around the world, where they are associated with sandy or muddy bottoms in coastal areas, being easily distinguished from other rays by the width of the disc. In recent years, the systematics of this family have been revised extensively. However, there has been no comprehensive...

The present study provides some parameters of the population biology of Charybdis (Charybdis) hellerii (A. Milne-Edwards, 1867), an invasive swimming crab inhabiting the estuarine portion of the Sergipe River, northeastern Brazilian coast. Samplings were carried out monthly from July 2015 to June 2016 with baited traps. The species was the second m...

The Asian clam of the genus Corbicula is the most successful freshwater invader worldwide. In this research note, the presence of the Corbicula largillierti is recorded for the first time in the Lower São Francisco River. This record is based on the collection of living organisms from the Xingó Hydroelectric Power Plant reservoir. This is the secon...

In this short note the plastic debris usage by tube-building polychaete Diopatra cuprea complex in the tube caps decoration is reported for the first time. Soft plastics attached to tube caps were recorded at a tidal flat in the Sergipe River estuary, northeastern Brazil. This interaction probably reflects an adaptation of this polychaete to a high...

We analyzed the population structure of Farfantepenaeus subtilis off Sergipe, northeastern Brazil, comparing different sampling methods. Samples were obtained between March 2015 and May 2016 from the commercial shrimp fleet based in the fishing ports of Aracaju (only shrimps categorized by size: small, medium, and large) and Pirambu (shrimps + byca...

This study provides the first assessment of the impact of the worst oil spill ever faced by Brazilian sandy beaches by analyzing changes in the community structure of intertidal macroinfauna. Four sandy beaches were sampled three times after the oil spill, and the results were compared with previous data. The first sampling, conducted 15 days after...

O presente estudo teve como objetivo testar a influência do tipo de isca (peixe ou vísceras de frango), do período do dia (diurno ou noturno), do período (enchente ou vazante) e do tipo de maré (sizígia ou quadratura) sobre a captura de crustáceos braquiúros no estuário do Rio Sergipe. Entre os fatores analisados, somente o tipo de maré apresentou...

The objective of this study was to describe the morphology and morphometry of saggitta otoliths of Polydactylus virginicus, Menticirrhus cuiaranensis and Conodon nobilis in a tropical environment. Fishes were caught with rod and reel in competitive fishing events promoted in 2014-2015 along the coast of Sergipe. A total of 174 pairs of sagitta otol...

This is the first report of two non-indigenous species, the bicolor purse oyster Isognomon bicolor and the acorn barnacle Striatobalanus amaryllis, in the coastal region of Sergipe state, Brazil. Both species were found attached to a floating dock in the estuarine region of the Vaza-Barris River. These findings contribute to a more comprehensive as...

The objective of this study was to evaluate the population structure and reproductive biology of Persephona lichtensteinii and P. puncata off Sergipe, two common species found in the bycatch of shrimp trawlers. Four samples of 6 kg were collected monthly from trawlers based in Pirambu-Sergipe. All individuals of Persephona were separated, identifie...

Sandy beaches are highly dynamics environments which harbor a rich fauna adapted to sediment instability. In this study, the number of species and the density of the intertidal macrofauna of the four sandy beaches of the Aracaju coast (Sergipe, NE Brazil) were analyzed. The beaches were classifi ed as dissipative. The number of species ranged from...

The goal of this study was to estimate the biometric relationships and sex ratio for the red-spotted shrimp Farfantepenaeus brasiliensis (Latreille, 1817) from the coast of Sergipe, northeastern Brazil. A total of 132 specimens of F. brasiliensis were collected and analyzed (65 females and 67 males) from May 2015 to May 2016. The overall sex ratio...

Aim The objective of this work is to provide a new occurrence record of the Asian clam Corbicula fluminea in the Poxim-Açu River, northeastern Brazil. Methods Samplings were carried out on October 20th of 2016 at five sites along Poxim-Açu River. At each site five samples were taken with a PVC core of 0.25 m of diameter and all individuals found i...

Shrimps are the main fishery resource in marine waters off Sergipe (northeastern Brazil), where they are landed in three categories: ‘espigão’, ‘escolha’ and ‘pistola’. The objective of this study was to identify which species are landed in each category, relating to the perception of stakeholders, and to analyze their effect on the interpretation...

Shrimp trawling is an important socioeconomic activity but catches a large number of non-target species, including Hepatus pudibundus. This study aimed at assessing the population structure of H. pudibundus, analyzing its sex ratio, length distribution, size at first morphological maturity and biometric relationships, and identifying latitudinal pa...

The aim of this study was to analyse the population dynamics of Xiphopenaeus kroyeri in Sergipe, Brazil. Four samples were collected monthly from shrimp trawlers based in the municipality of Pirambu from March 2015 to May 2016. Carapace length (CL), total length (TC), live weight (LW), sex and maturity stages were obtained for each specimen. A tota...

O presente trabalho objetivou analisar a estrutura populacional do camarão branco Litopenaeus schmitti (Burkenroad, 1936) capturado pela pesca artesanal de arrasto em Sergipe e sua morfometria. O material biológico foi coletado mensalmente de janeiro/2015 a março/2016, exceto durante os defesos. De todos os indivíduos foram medidos o comprimento to...

This study aimed at analyzing the proximate composition of the southern white shrimp Litopenaeus schmitti (Burkenroad, 1936) off the state of Sergipe. Samples of the 'pitola' category (large shrimp), which includes L. schmitti, were collected monthly between May and October 2016 at the Aracaju Fishing Harbor, state of Sergipe. All maturity stages f...

The cliff crab Plagusia depressa (Fabricius, 1775) is recorded for the first time from the state of Sergipe, northeastern Brazil. This new record fills the gap in the species distribution between Pernambuco (8°S) and Bahia (12°S).

Callichirus major is a callianassid shrimp widely used as live bait by Brazilian recreational fishers. Here, we present information about spatial distribution and population dynamics of C. major based upon both the number of burrow openings and the number of specimens collected monthly between July 2011 and September 2012 at Aruanda Beach, northeas...

The objective of this study was to report all fish species caught by shrimp trawlers based in Pirambu, in the state of Sergipe, Brazil and estimate the length-weight relation (LWR) for the most abundant species in the samples. Four samples were collected monthly from four shrimp trawlers. A total of 8522 fishes were caught (89 species; 38 families)...

The insertion of artificial structures in aquatic environment could cause a positive influence on the local community, since they increase environmental complexity and provide novel substrates for fixation and colonization. These new habitats attract a wide variety of organisms including the fish which can start living near to these structures. Str...

The objective of this study was to analyze the morphometry of otoliths for Sciades proops juveniles by testing the hypothesis of equality in morphometric relationships for the right and left otoliths, which could then be interchangeably used to estimate fish size or weight. Samples were obtained monthly directly from anglers after each event that t...

Two species of Mytella occur in the state of Sergipe, M. charruana and M. bicolor. Both of them are exploited but in an unknown proportion. One of the first steps towards the proper assessment of the importance of each species for the local economy is to estimate their meat yield. Thus, this study was carried out with the objective of estimating th...

Based on the paratype of Bledius caribbeanus, its distribution is corrected, not occurring in Brazil, and its morphology is compared to B. hermani; two new Bledius species from the coast of Brazil are described; B. externus is redescribed and here for the first time recorded in Brazil and the key to identification of Brazilian coastal Bledius is up...

Sandy beaches constitute a key ecosystem and provide socioeconomic goods and services, thereby playing an important role in the maintenance of human populations and in biodiversity conservation. Despite the ecological and social importance of these ecosytems, Brazilian sandy beaches are significantly impacted by human interference, chemical an...

The crabs are organisms with high level of adaptation to different environments, become susceptible to a variety of both disease and parasites which may cause death or reducing their commercial value. The aim of this project is evaluate the incidence of leeches infestation on the swimming crabs of the genus Callinectes caught and sold in the northe...

Sangradouros são cursos d’água doce que fazem parte da drenagem da planície costeira, dando escoamento às águas pluviais coletadas no pós-duna. Podem desempenhar importante papel no transporte de sedimentos e alterar os padrões de distribuição da macrofauna na praia, reduzindo valores de abundância e riqueza de espécies próximo à sua descarga. Este...

In this study both population and reproductive aspects of the Palaemon pandaliformis caught with trap in a subtropical salt marsh were analyzed. Monthly samplings were carried out from July 2008 through August 2009. Higher abundances were registered along warmer months (October to January) and were negatively related to water salinity. This populat...

In this study both population and reproductive aspects of the Palaemon pandaliformis caught with trap in a subtropical salt marsh were analyzed. Monthly samplings were carried out from July 2008 through August 2009. Higher abundances were registered along warmer months (October to January) and were negatively related to water salinity. This populat...

In this study we tested capture efficiency of two of plastic bottle traps and four kinds of baits (fresh cow liver, broken corn, meat flavored dog food and commercial bait for amateur fishing) for small crustaceans and fishes at estuarine environments (saltmarshes and tidal creeks). Smaller trap opening sizes mainly limited the capture of organisms...

Growth and survival of the oyster Crassostrea brasiliana (Lamarck, 1819) kept inside a shrimp's culture pond 40,8 ± 8,7 mm foram instalados dentro de viveiro e, após 4 meses, atingiram uma altura média de 50,3 ± 8,7 mm, resultando numa taxa de incremento mensal de 2,37 mm/mês. A sobrevivência média final foi de 67%. Apesar do crescimento lento, a a...

Four portunid crabs species, including an exotic one, are recorded for the first time from the state of Sergipe, NE Brazil. Although common along the Brazilian coast, the new records of the crabs Callinectes bocourti A. Milne-Edwards, 1879, C. exasperatus (Gerstaecker, 1856), C. marginatus (A. Milne-Edwards, 1861) and Charybdis hellerii (A. Milne-E...

The sea star Astropecten marginatus has a neotropical distribution and is a highly abundant and frequent species in shrimp trawling by-catchin many places along the Brazilian coast. This has caused its threat to extinction and in addition, its bio-ecological aspects are poorly known. Thus, the main objective of this study was to analyze the seasona...

Nesse trabalho foram identificados os pontos de venda e as espécies comercializadas como iscas vivas para a pesca recreativa no litoral do Paraná, sul do Brasil. Foram registrados cinco pontos de venda e seis espécies, sendo dois peixes (Poecilia vivipara e Dormitator maculatus) e quatro crustáceos (Macrobrachium acanthurus, M. olfersii, Callichiru...

The blue crab Callinectes sapidus Rathbun, 1896 is an important fishery resource at several places along the At-lantic coast of America (Williams 1974; Milliken and Wil-liams 1984; Stagg and Whilden 1997). Native from western Atlantic, this species has been also recorded in the eastern Atlantic, North Sea, Mediterranean Sea, Adriatic Sea, Black Sea...

The rove beetles of genus Bledius Leach, 1819 are most abundant in moist sandy environments adjacent to rivers, lakes and oceans, feeding on algae and diatoms, where its presence can be quickly detected by the cast or tumulus left on surface above the entrance of the burrows (Herman 1986). Species of the genus are found on all continents except Ant...

The western Atlantic mud-shrimp Axianassa australis Rodrigues and Shimizu, 1992 (Crustacea: Decapoda: Gebiidea: Axianassidae), known from Florida, Gulf of Mexico and Brazil, is firstly recorded from the state of the Sergipe, NE Brazil, filling a gap in the species distribution along Brazilian coast.

RESUMO Foram testados dois tamanhos de covos de garrafas pet e quatro tipos de atrativos (fígado de boi, quirera, ração canina e massinha para lambari). As diferenças observadas entre as médias de comprimentos dos exemplares capturados nos covos grandes e pequenos não foram significativas. Quanto aos engodos, foram constatadas preferências de P. pa...

Nesse trabalho, a presença do molusco exótico invasor Melanoides tuberculatus é registrada pela primeira no Estado de Sergipe. O fato agravante é que sua ocorrência foi detectada em duas unidades de conservação do Estado, uma na região costeira e outra no semi árido sergipano. Foram coletados 227 espécimes na Lagoa Azul, a maior lagoa da APA Litora...

Gandara-Martins, A. L.; Rosa, L. C.; Caron, E. & Borzone, C. A. 2010. Occurrence of three species belonging the genus Bledius Leach, 1819 (Coleoptera, Staphylinidae, Oxytelinae) in exposed sandy beaches of Paraná state, Brazil. Braz. J. Aquat. Sci. Technol. 14(2): 23-30. ISSN 1808-7035. The upper portions of sandy beaches usually have a strip of de...

A geomorphological and faunistic seasonal study of six estuarine beaches on Paranaguá Bay, Brazil, was abruptly interrupted when the Chilean ship "Vicuña" exploded and sank, spilling 291 tons of bunker fuel oil. The beaches sampled twice before the accident were affected by the oil spill deposition and the posterior clean-up activities. Neither dra...

The macrofauna community structure at two distinct environments (i.e., a pond and a sedimentation basin) of a shrimp farm was compared to the natural environment across entire cycle of Litopenaeus vannamei culture located at estuarine region of the Patos Lagoon, southern Brazil. Both farm habitats showed lower values of number of species and densit...

The macrofauna community structure at two distinct environments (e.g., a pond and a sedimentation basin) of a shrimp farm was compared to the natural environment across an entire cycle of Litopenaeus vannamei culture located at estuarine region of the Patos Lagoon, southern Brazil. Both farm habitats showed lower values of number of species and den...

This study examines the spatial distribution of the ghost crabs, Ocypode quadrata Fabricius, 1787, in thirteen estuarine sandy beaches located along two main axes of the Paranaguá Bay Estuarine Complex, southern Brazil. Burrow densities of ghost crabs were measured at three beach levels established around the high tide mark during the summer and wi...

The main habitat characteristics of Diglotta brasiliensis Caron & Ribeiro-Costa, 2008, a recently described species from the Neotropical region, are provided. The specimens were found inhabiting a 4 m wide-strip at the upper intertidal zone of two estuarine sand beaches (both located in the euhaline sector of the bay), with densities ranging from 1...

Shrimp farming activities tend to increase the organic matter sedimentation rate, by extreme inputs of excreta products and shrimp food (commercial shrimp diet) into the environment. In certain environmental conditions, the auto-depuration system can be surpassed, generating a high production of nutrients at the sedimentary layer as a result of ben...

Shrimp farming activities tend to increase the organic matter sedimentation rate, by extreme inputs of excreta products and shrimp food (commercial shrimp diet) into the environment. In certain environmental conditions, the auto-depuration system can be surpassed, generating a high production of nutrients at the sedimentary layer as a result of ben...

A morphodinamical approach in the phisical characterization of the estuarine beaches from Paranaguá Bay, southern Brazil. In this study, thirteen estuarine sandy beaches distributed along of Paranaguá Bay were characterized regarding its morphology, sedimentary composition, wave regime and morphodynamism. The beaches were characterized by a narrow...

The only family of Amphipoda with terrestrial representatives is the Talitridae. Four species are present along the Brazilian coast, three of which appear in the Bay of Paranaguá Complex, Atlantorchestoidea brasiliensis,Talorchestia tucurauna and Platorchestia monodi. Samples collected at the wrack line of eleven beaches of the complex showed that...

Resumo The main objective of this study was to evaluate the influence of vegetated beds on macrofauna community structure of the estuarine soft bottoms of the Patos Lagoon, southern Brazil. Comparative analyses were made by faunal samples collected inside and outside in two kinds of vegetated beds: a sea grass meadows during the summer period and,...

The only family of Amphipoda with terrestrial representatives is the Talitridae. Four species are present along the Brazilian coast, three of which appear in the Bay of Paranaguá Complex, Atlantorchestoidea brasiliensis, Talorchestia tucurauna and Platorchestia monodi. Samples collected at the wrack line of eleven beaches of the complex showed that...

The main objective of this study was to evaluate the influence of vegetated beds on macrofauna community structure of the estuarine soft bottoms of the Patos Lagoon, southern Brazil. Comparative analyses were made by faunal samples collected inside and outside in two kinds of vegetated beds: a sea grass meadows during the summer period and, an alga...

Temporal variability of the macrofauna density and its relationship with water and sediments characteristics were studied through monthly sampling at an estuarine embayment of the Patos Lagoon, Brazil from January to December 2001. Both, water and sediments characteristics showed distinct seasonal patterns. High salinity and water temperature value...

Stratified samples were seasonally collected to analyze the vertical distribution of the macroinfauna and sedimentological characteristics in a soft bottom estuarine habitat of the Patos Lagoon, southern Brazil. Physical-chemical characteristics of the sediments were quite similar among all sampling periods. Significant differences among strata wer...

This s tudy aimed to evaluate the effects of t he burrowing crab Chasmagnathus granulata o n meiofauna at three intertidal habitats across a tidal exposure gradient (i.e., an emerged salt marsh, an emerged mudflat and a submerged mudflat) in an estuarine embayment of Patos Lagoon, Southern Brazil. Meiofauna community was dominated by nematodes and...

Meiofauna in the soft-bottom habitats of the Patos Lagoon Estuary (south Brazil). This study aims to compare the composition and the density of the meiofauna among three soft-bottom habitats over an emersion gradient during a prolonged tidal exposure period (summer 2000). The selected habitats were (1) a Spartina alterniflora-marsh, (2) an intertid...

A field experiment was performed between February and May 2002 to evaluate the predation effects of migratory shorebirds on the macrofauna structure at an intertidal mudflat of the estuarine region of the Patos Lagoon. Predators were excluded by use of the metallic cages (20 x 20 x 30 cm). The macrofauna densities in shorebird exclusion treatments...

A comparative study of the infaunal recruitment patterns among disturbed surface sediment mounds around Chasmagnathus granulata Dana, 1851 burrows and undisturbed adjacent sediments was done in two intertidal soft bottom habitats (an upper and a lower mudflat zone) in an estuarine inlet of Patos Lagoon, southern Brazil. The most abundant infaunal o...

RESUMO: Comparação da meiofauna em dois ambientes estuarinos da Lagoa dos Patos, RS. Mais de 50% da região estuarina da Lagoa dos Patos correspondem a ambientes de águas rasas, dos quais ressaltam-se planos submersos não vegetados e marismas colonizadas por Spartina alterniflora por serem zonas de reprodução de várias espécies. Este trabalho tem po...