Opsanus beta (Goode & Bean, 1880) (Acanthopterygii: Batrachoididae), a non-indigenous toadfish in Sepetiba Bay, south-eastern Brazil

2021 ◽  
pp. 1-9
Author(s):  
Magda F. Andrade-Tubino ◽  
Fernando Luiz K. Salgado ◽  
Wagner Uehara ◽  
Ricardo Utsunomia ◽  
Francisco Gerson Araújo
Keyword(s):  
Reproductive Capacity ◽  
Brazilian Coast ◽  
Negative Effects ◽  
Species Identity ◽  
Sepetiba Bay ◽  
Opsanus Beta ◽  
South Eastern ◽  
Eastern Brazil ◽  
Invasion Impact ◽  
First Time

Abstract The introduction of non-native predator fish is thought to have important negative effects on native prey populations. Opsanus beta is a non-native toadfish that was originally described in the Gulf of Mexico, between the west coast of Florida and Belize. In the present study, we describe, for the first time, the occurrence of O. beta in Sepetiba Bay (22°55′S), south-eastern Brazil, probably brought into the bay through ships' ballast water. Thirteen specimens were recorded in this area near to Sepetiba Port. Similarly, three other records of this species in the Brazilian coast were also reported near to port areas at Rio de Janeiro (22°49′S), Santos (23°59′S) and Paranaguá (25°33′S) ports. To confirm the species identity, we employed DNA barcoding and compared our samples with sequences deposited on public databases, which indicated that our samples are highly similar (>99.9% of genetic similarity) to O. beta samples collected near its type locality. Several individuals were found in the capable spawning phase, according to histological analysis of the reproductive cell stages. The environmental plasticity of this species and the favourable local environmental conditions probably enabled the establishment of O. beta in this region. This raises concerns of potential high invasion impact due to this species' diet and reproductive capacity.

Occurrence of the non-indigenous Omobranchus punctatus (Blenniidae) on the São Paulo coast, South-Eastern Brazil

2015 ◽  
Vol 8 ◽  
Author(s):  
R.F. Contente ◽  
M.R. Brenha-Nunes ◽  
C.C. Siliprandi ◽  
R.A. Lamas ◽  
V.R.M. Conversani
Keyword(s):  
Tidal Flat ◽  
Sao Paulo ◽  
Tide Pool ◽  
São Paulo ◽  
South Eastern ◽  
Eastern Brazil ◽  
First Time ◽  
Sand Bottom

We report, for the first time, the occurrence of the muzzled blenny,Omobranchus punctatus, on the coast of São Paulo, South-Eastern Brazil, partially filling a record gap within the species’ expected distribution in Brazil. One individual was found on 16 June 2014 in a sand-bottom tide pool of a tidal flat ecosystem, adjacent to the port of São Sebastião.

Age and growth of the snowy grouper, Epinephelus niveatus, off the Brazilian coast

2011 ◽  
Vol 92 (3) ◽  
pp. 633-641 ◽  
Author(s):  
Paulo A.S. Costa ◽  
Adriana C. Braga ◽  
Juan P. Rubinich ◽  
Antônio Olinto Ávila-da-Silva ◽  
Cassiano M. Neto
Keyword(s):  
Life Span ◽  
Positive Relationship ◽  
Growth Parameters ◽  
Age And Growth ◽  
Brazilian Coast ◽  
Von Bertalanffy ◽  
South Eastern ◽  
Otolith Analysis ◽  
Eastern Brazil ◽  
Marginal Increment

The age and growth of the snowy grouper, Epinephelus niveatus, from central and south-eastern Brazil were studied by otolith analysis from a sample of 341 specimens, ranging from 325 to 1216 mm in total length (TL) caught with bottom longlines between 1996 and 1998. Otolith length grew proportionally with the increasing TL of the fish. Marginal increment analysis indicated that a single opaque band forms each year during autumn–winter. The maximum estimated age was 54 years, which significantly extends the previously estimated life-span of 21–29 years for this species. The von Bertalanffy growth parameters for both sexes were estimated as L∞ = 1098.4 mm TL, K = 0.062 year −1 and t0 = –2.68. The study revealed differences in mean length-at-age and size at recruitment, as well as in growth parameters between the central and the south-eastern Brazilian coast, which can be attributed mainly to different fishing pressures. The snowy grouper was found at depths of 82–492 m, and showed a positive relationship between age and depth, suggesting differential movements of older fish to deeper waters.

scholarly journals Check-list of vascular plant communities on ironstone ranges of south-eastern Brazil: dataset for conservation

2018 ◽  
Vol 6 ◽  
pp. e27032 ◽  
Author(s):  
Flavio Carmo ◽  
Rubens da Mota ◽  
Luciana Kamino ◽  
Claudia Jacobi
Keyword(s):  
Vascular Plants ◽  
Higher Plants ◽  
Vascular Plant ◽  
Species Level ◽  
Narrow Endemic ◽  
South Eastern ◽  
Β Diversity ◽  
Eastern Brazil ◽  
Brazilian Flora ◽  
First Time

Ironstone ranges are considered hotspots for higher plants α and β diversity. The lack of studies and the intense degradation of the ironstone ranges, due to mining, motivated us to compile, for the first time, a list of vascular plants collected on iron-rich derived substrates from ancient landscape of south-eastern Brazil. All existing records in the Brazilian Virtual Herbarium of Flora and Fungi for each of the 43 municipalities containing ironstone ranges were downloaded, resulting in 17,954 vouchers identified to the species level. We found 2,933 species belonging to 160 families and 818 genera. For the first time, we identified 148 species mentioned in endangered flora official lists and 48 narrow endemic species. Collecting efforts must still be supported to properly sample the vegetation since, for 143 sites, less than 10 records/site were found. This dataset will assist with the indication of dozens of plant species whose threat criteria must be urgently assessed to subsidise public policies on the use and conservation of the Brazilian flora.

scholarly journals Food resource utilization of the skates Rioraja agassizii (Müller & Henle, 1841) and Psammobatis extenta (Garman, 1913) on the continental shelf off Ubatuba, South-eastern Brazil

2001 ◽  
Vol 61 (2) ◽  
pp. 217-238 ◽  
Author(s):  
E. Y. MUTO ◽  
L. S. H. SOARES ◽  
R. GOITEIN
Keyword(s):  
Feeding Habits ◽  
Food Resource ◽  
Stomach Content Analysis ◽  
Brazilian Coast ◽  
Relative Importance ◽  
Important Food ◽  
South Eastern ◽  
Eastern Brazil ◽  
Index Of Relative Importance ◽  
Food Resource Utilization

The feeding habits of Rioraja agassizii (syn. Raja agassizii) and Psammobatis extenta (syn. Psammobatis glansdissimilis) of the South-eastern Brazilian coast were studied by means of stomach content analysis. The samples were obtained on eight seasonal oceanographic cruises, carried out between October 1985 and July 1987. The importance of each food item was evaluated on the basis of the Index of Relative Importance and the feeding similarity by Percentage of Similarity. The results indicated that both species are benthic feeders, preying mainly on Crustacea, especially Amphipoda, Caridea and Brachyura. Teleostei were also important for R. agassizii. Seasonal variation of the diet seems to be associated with the availability of the prey, whose distribution and abundance are related to the dynamics of the water masses of the region. Juveniles and adults of P. extenta exploited the same resources while juveniles and adults of R. agassizii presented low diet similarity during most of the year. Caridea were an important food for all length classes of R. agassizii, while Amphipoda were for smaller specimens, and Teleostei for larger ones. The feeding overlap between the two species was higher during autumn 1986, winter 1986 and winter 1987.

Human‐facilitated dispersal of the Gulf toadfish Opsanus beta (Goode & Bean, 1880) in the Guaratuba Bay, south‐eastern Brazil

2020 ◽  
Vol 97 (3) ◽  
pp. 686-690
Author(s):  
Barbara M. Carvalho ◽  
Augusto L. Ferreira Junior ◽  
Luís F. Fávaro ◽  
Roberto F. Artoni ◽  
Jean Vitule
Keyword(s):  
Opsanus Beta ◽  
South Eastern ◽  
Eastern Brazil ◽  
Gulf Toadfish

Modulating reproduction of Penaeidae shrimps: ecological responses of two sympatric species (Decapoda: Dendrobranchiata) on south-eastern Brazilian coast

2012 ◽  
Vol 93 (3) ◽  
pp. 733-740 ◽  
Author(s):  
Ana Paula Pereira Gomes ◽  
Karina Annes Keunecke ◽  
Demarques Ribeiro da Silva ◽  
Marcelo Vianna
Keyword(s):  
Sex Ratio ◽  
Carapace Length ◽  
Sympatric Species ◽  
Brazilian Coast ◽  
Guanabara Bay ◽  
Pink Shrimp ◽  
South Eastern ◽  
Eastern Brazil ◽  
Farfantepenaeus Paulensis ◽  
Continuous Reproduction

The present study investigated the reproductive biology of the pink shrimp Farfantepenaeus brasiliensis and Farfantepenaeus paulensis captured offshore and at two important fishing grounds, Guanabara Bay and Araruama Lagoon both on the south-eastern Brazil coast. The females’ size at first maturation was 37.90 mm of carapace length (CL) for F. brasiliensis and 41.95 mm of CL for F. paulensis. Both species presented continuous reproduction with two spawning peaks. For F. brasiliensis these peaks occurred during summer and winter and for F. paulensis during summer and autumn. The sex-ratio of the pink shrimp was favourable to the number of females which can be a strategy to guarantee the reproduction.

scholarly journals First records of the order Polycladida (Platyhelminthes, Rhabditophora) from reef ecosystems of Alagoas State, north-eastern Brazil, with the description ofThysanozoon alagoensissp. nov.

2015 ◽  
Vol 95 (8) ◽  
pp. 1653-1666 ◽  
Author(s):  
Juliana Bahia ◽  
Vinicius Padula ◽  
Mônica Dorigo Correia ◽  
Hilda H. Sovierzoski
Keyword(s):  
Marine Invertebrate ◽  
Brazilian Coast ◽  
Invertebrate Fauna ◽  
Histological Sections ◽  
The North ◽  
Eastern Brazil ◽  
Wide Range ◽  
North Eastern ◽  
First Time ◽  
A New Species

The 230 km long coast of Alagoas State, in north-eastern Brazil, has diverse reef ecosystems, made from corals and of sandstone, that harbour a wide range of marine invertebrate fauna. Little is known about turbellarians of the order Polycladida in most parts of the Brazilian coast, with no record from Alagoas up to date. To fill this gap expeditions were conducted on the reefs from the central coast of Alagoas, where 11 Polycladida species were found:Pericelis cata, Enchiridium evelinae, Pseudoceros bicolorand a possible new colour variation of this species,Pseudoceros rawlinsonae, Pseudobiceros pardalis, Thysanozoon brocchii, Thysanozoon alagoensissp. nov.,Armatoplana leptalea, Adenoplana evelinae, Latocestus brasiliensis, Phaenocelis medvedica. The species are described in detail through photos of live specimens and histological sections. The present work adds six species to the north-eastern Brazilian coast, one of them a new species, and all 11 species are for the first time reported from Alagoas State. Also, it is the first time thatPhaenocelis medvedica, Adenoplana evelinae, Latocestus brasiliensisandArmatoplana leptaleaare illustrated by full colour photos of live specimens and histological sections.

Life history traits of the sand stargazerDactyloscopus tridigitatus(Teleostei: Blennioidei) from south-eastern Brazilian coast

2011 ◽  
Vol 93 (2) ◽  
pp. 397-403 ◽  
Author(s):  
Rogério Luiz Teixeira ◽  
Eduardo Hoffman de Barros ◽  
Rodrigo Barbosa Ferreira ◽  
Rafael Magno Costa Melo ◽  
Luiz Fernando Salvador-Jr
Keyword(s):  
Paternal Care ◽  
Feeding Habits ◽  
Reproductive Period ◽  
Brazilian Coast ◽  
Strongly Correlated ◽  
South Eastern ◽  
Total Length ◽  
Eastern Brazil ◽  
Female Total ◽  
One Year

Individuals of the sand stargazerDactyloscopus tridigitatuswere collected monthly over a period of one year in an urban-sandy beach in south-eastern Brazil. We sampled 57 males, 64 females, and 6 juveniles, indicating a sex-ratio of approximately 1:1. Total length and weight did not differ significantly between sexes, showing no sexual dimorphism in size. The growth ofD. tridigitatuswas highly positive allometric and the correlation coefficient was significant for both sexes. Males were observed carrying two egg clumps under each enlarged pectoral fin during most of the year. In contrast, females showed a more restricted reproductive period, concentrated during the austral rainy season. The number of eggs in each clump carried by males did not differ significantly from the number of vitellogenic oocytes of mature females. The number of eggs carried by males was weakly correlated to male total length; however, female fecundity was strongly correlated to female total length.Dactyloscopus tridigitatusconsumed a high variety of prey items, including crustaceans, annelids, molluscs, teleosts, insects and eggs. Isopods were the most important component of the diet followed by polychaetes and amphipods. We concluded that promiscuous breeding, paternal care behaviour and invertivorous feeding habits seem to be important traits for the species' success in the studied habitat.

scholarly journals Spatial–temporal variation of Paralonchurus brasiliensis (Actinopterygii: Sciaenidae) density in relation to some environmental factors on the inner shelf of south-eastern Brazilian coast

2011 ◽  
Vol 92 (2) ◽  
pp. 413-420 ◽  
Author(s):  
Eudriano Florêncio dos Santos Costa ◽  
Gustavo Monteiro Teixeira ◽  
Fúlvio Aurélio de Morais Freire ◽  
Adilson Fransozo
Keyword(s):  
Environmental Factors ◽  
Temporal Variation ◽  
Cold Water ◽  
Organic Matter Content ◽  
Fine Sand ◽  
Matter Content ◽  
Brazilian Coast ◽  
Monthly Basis ◽  
South Eastern ◽  
Eastern Brazil

The temporal and spatial variation of Paralonchurus brasiliensis density (fish per m2) in relation to environmental factors was studied on the coasts of Ubatuba and Caraguatatuba, south-eastern Brazil. The fish were collected by shrimp fishery trawl on a monthly basis from January to December, 2002. Seven depths were previously established and for each one the temperature, salinity, organic matter content and grain size of the sediment (φ) was measured. The seasonal analysis of temperature and salinity indicated the presence of the water masses South Atlantic Central Water (SACW) and Coastal Waters (CW) acting in the study area. A total of 29,808 fish were collected during the study period. The highest densities were registered during the summer and autumn indicating an association with CW. The fish population moved to shallow depths during the intrusion of the cold water mass, SACW. The highest densities were registered in depths where the sediment composition ranged from fine sand to silt–clay. Thus, the temperature and type of the sediment are the main environmental factors which affect the spatial–temporal variation of P. brasiliensis density in south-eastern Brazil.

The first data on the lichen flora of Dagestan beech forests

2013 ◽  
Vol 47 ◽  
pp. 215-221 ◽  
Author(s):  
A. B. Ismailov ◽  
G. P. Urbanavichus
Keyword(s):  
Lichen Species ◽  
The South ◽  
Beech Forests ◽  
Saprotrophic Fungi ◽  
South Eastern ◽  
Caucasus Mountains ◽  
First Time ◽  
Lichen Flora

49 lichen species and 2 species of non-lichenized saprotrophic fungi are recorded for the first time in beech forests of the south-eastern part of piedmont Dagestan. Among them, 34 species and 9 genera are new to Dagestan Republic, and 2 species, Diplotomma pharcidium (Ach.) M. Choisy and Rinodina albana (A. Massal.) A. Massal., are new to Caucasus Mountains.

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