scholarly journals First record of Ceratium furcoides (Dinophyta), an invasive species, in a temporary high-altitude lake in the Iron Quadrangle (MG, Southeast Brazil)

2015 ◽  
Vol 75 (1) ◽  
pp. 98-103 ◽  
Author(s):  
RA. Moreira ◽  
O. Rocha ◽  
RM. Santos ◽  
R. Laudares-Silva ◽  
ES. Dias ◽  
...  
Keyword(s):  
Invasive Species ◽  
High Altitude ◽  
First Record ◽  
Mining District ◽  
Aquatic Communities ◽  
Rainy Period ◽  
Southeast Brazil ◽  
Iron Quadrangle ◽  
Global Connections ◽  
High Altitude Lake

Dinoflagellates of the genus Ceratium are generally marine organisms, but rare occurrences in freshwater have been observed in Brazil. In this paper we are recording for the first time the presence of Ceratium furcoides, an invasive species, in a shallow, natural intermittent pool formed at a high-altitude at the southern end of the Iron Quadrangle, an iron-mining district of Minas Gerais State (Southeast Brazil). Samples were collected in October and November of 2010 (rainy period). The population density of this organism observed in Lagoa Seca (“Dry Pool”) was very low, at most 4 ind L–1. Mountain lakes are extremely vulnerable to atmospheric deposition of organisms, making them valuable witnesses both of the many forms of impact arising from human activities and of the extended global connections that facilitate the dispersion and introduction of new species over great distances. Studies on the population dynamics of C. furcoides in natural tropical systems are still rare and very recent to the brazilian scenario and hence the monitoring of its dynamics and the potential impact on aquatic communities of its becoming established are essential to an understanding of the process of bioinvasion by this species.

scholarly journals Ceratium furcoides (Levander) Langhans: first record in Nova Avanhandava reservoir, Southeast Brazil

Hoehnea ◽  
2020 ◽  
Vol 47 ◽  
Author(s):  
Andréa Sampaio Dias ◽  
Andréa Tucci
Keyword(s):  
Environmental Conditions ◽  
Early Stage ◽  
First Record ◽  
Sao Paulo ◽  
The Other ◽  
Low Density ◽  
Aquatic Communities ◽  
Southeast Brazil ◽  
Physico Chemical ◽  
Density Values

ABSTRACT This is the first record of Ceratium furcoides in the Nova Avanhandava reservoir, São Paulo, whose samples were collected in three stations (S1, S2, S3) in March and October of the years 2015 and 2016. Physico-chemical analyzes of the water were performed. The reservoir was classified, according to the TSI, as mesotrophic. The first record of the species occurred in October 2015 at S3 and, the following year, the dispersion for the other stations was verified. The highest density of the species (28 org mL-1) was recorded in October 2016. Similar values were documented in Furnas (MG) and Ilha Solteira (SP). The low density values of C. furcoides and the presence of phytoplankton groups with higher densities (Cyanobacteria and Cryptophyceae) suggest that the colonization of the species is at an early stage. Thus, studies about dispersion, dynamics, and interaction of C. furcoides with phytoplankton and the potential impacts on aquatic communities are essential to understand the responses of this species to environmental conditions.

scholarly journals Periphytic algae dynamics in lentic ecosystems in the Brazilian semiarid

2016 ◽  
Vol 77 (3) ◽  
pp. 495-505 ◽  
Author(s):  
R. S. Cordeiro ◽  
J. E. L. Barbosa ◽  
G. Q. Lima Filho ◽  
L. G. Barbosa
Keyword(s):  
Aquatic Macrophytes ◽  
Soluble Reactive Phosphorus ◽  
Algal Community ◽  
Aquatic Communities ◽  
Dry Period ◽  
Rainy Period ◽  
Brazilian Semiarid ◽  
High Concentrations ◽  
Reactive Phosphorus ◽  
Reduced Density

Abstract The hydrological periods drive the structure and organization of aquatic communities in semiarid regions. We hypothesize that a decrease of the precipitation during the dry period will favor the development of the periphytic algal community, leading to higher richness and density in this period. To test this hypothesis, we investigated the changes in the periphytic algal community structure in three shallow and eutrophic ecosystems of the Brazilian semiarid. The sampling was performed between 2007 and 2010 at two-mensal intervals. The sampling of periphytic algal was performed in aquatic macrophytes and rocks. The abiotic variables were analyzed simultaneously. Dominance in diatoms, cyanobacteria and chlorophytes, respectively, was observed in two periods. In the dry period, waters were alkaline and had high concentrations of nitrate and total phosphorus associated with the highest densities of Bacillariophyceae. In the rainy period the water was warmer, oxygenated and high concentrations of ammonia and soluble reactive phosphorus with diatoms remained dominant but with reduced density, while cyanobacteria and chlorophytes increased. Overall, periphytic algal community composition no responded to changes in the hydrological periods. However, the hydrological periods altered the dynamics of periphytic algal community, supported by the alternation of the most representative classes (diatoms and cyanobacteria) between the hydrologic periods. Our data suggest that the morphometric and chemical and physical characteristics of lentic aquatic ecosystems studied were more important in the dynamics of periphytic algal community than the hydrological periods and types of substrates.

scholarly journals Primeiro relato de Lernaea cyprinacea (Copepoda: Lernaeidae) em girinos e rãs recém-metamorfoseadas em populações selvagens de Lithobates catesbeianus (Anura: Ranidae) na Argentina

2016 ◽  
Vol 15 (1) ◽  
pp. 43 ◽  
Author(s):  
Zulma A. Salinas ◽  
Fernanda G. Biolé ◽  
Pablo R. Grenat ◽  
Favio E. Pollo ◽  
Nancy E. Sala ◽  
...  
Keyword(s):  
Invasive Species ◽  
Clinical Symptoms ◽  
First Record ◽  
Parasitic Infestation ◽  
Anuran Larvae ◽  
Lithobates Catesbeianus ◽  
Secondary Infections ◽  
Lernaea Cyprinacea

Lernaea cyprinacea is an ectoparasitic copepod that can result in the mortality of the host by causing hemorrhages, ulcerations, and secondary infections. Lernaea cyprinacea is widely distributed in Argentina. Previous reports are restricted almost exclusively to cases of parasitism in fishes; copepod parasitism of anuran larvae is rarely documented. This is the first record and description of the parasitic infestation of L. cyprinacaea on tadpoles of the exotic and invasive species Lithobates catesbeianus in Argentina. A total of 15 tadpoles and 21 newly-metamorphosed individuals of L. catesbeianus were collected from the mountain town of Río de los Sauces, and 12 tadpoles from the Toledo Stream. A maximum of two parasites per host was found, principally in the cloaca. Clinical symptoms of inflammation hemorrhage and ulcers in the skin with mucus formation in the attachment area of parasites were observed.

scholarly journals First record of Salacia tetracythara Lamouroux, 1816 (Hydrozoa, Sertulariidae) as an alien hydroid for the Atlantic Ocean

2021 ◽  
Vol 61 ◽  
pp. e20216106
Author(s):  
Luana Marina de Castro Mendonça ◽  
Carmen Regina Parisotto Guimarães ◽  
Manuel María González-Duarte ◽  
Maria Angélica Haddad
Keyword(s):  
Atlantic Ocean ◽  
Alien Species ◽  
First Record ◽  
The State ◽  
Northeast Brazil ◽  
Rainy Period ◽  
Recent Introduction ◽  
Estuarine Region

We present here the first record of Salacia tetracythara as an alien species for the Atlantic Ocean, specifically the coast of the state of Sergipe, northeast Brazil. The species was found attached to an artificial experimental plate installed in the rainy period (July-October 2017), in an estuarine region of the Sergipe River near the Sergipe Harbour. Salacia tetracythara is characterized by a small triangular space below each hydrotheca and two types of microbasic mastigophore nematocysts that differ in shape, size, and location. The species was described from Australia and has been recorded only for tropical to temperate regions of the Indo-Pacific. Salacia tetracythara seems to be a recent introduction into the Atlantic Ocean and, its introduction probably derived from ship transport between the Sergipe Harbour and regions of Oceania and/or Asia. Further investigation should be conducted to determine whether the species is established in the region and how far inside the estuary it has gone.

scholarly journals Isognomon bicolor (C. B. Adams, 1845) (Mollusca: Bivalvia): first record of this invasive species for the States of Paraíba and Alagoas and new records for other localities of Northeastern Brazil

Check List ◽  
2013 ◽  
Vol 9 (1) ◽  
pp. 157 ◽  
Author(s):  
Thelma Lúcia Pereira Dias ◽  
Ellori Laíse Silva Mota ◽  
Anne Isabelley Gondim ◽  
Jacicleide Macedo Oliveira ◽  
Emanuelle Fontenele Rabelo ◽  
...  
Keyword(s):  
Invasive Species ◽  
New Record ◽  
New Records ◽  
Rio Grande ◽  
First Record ◽  
The State ◽  
Northeastern Brazil ◽  
Northeast Brazil ◽  
Littoral Region ◽  
Exotic Invasive

This study provides the first record of the exotic invasive bivalve Isognomon bicolor for the State of Paraíba, Northeastern Brazil. It has been found to occur in at least twelve coastal reefs along the coast. We also present its first record for the State of Alagoas and new record localities for the States of Rio Grande do Norte and Pernambuco, including its occurrence in hypersaline estuaries. From these records the distribution range of I. bicolor has been expanded to the littoral region of Northeast Brazil, where this invasive species seems well established.

scholarly journals First record of the invasive species Rottboellia cochinchinensis (Poaceae, Andropogoneae) in the South Region of Brazil

Check List ◽  
2016 ◽  
Vol 12 (4) ◽  
pp. 1930
Author(s):  
Luís Adriano Funez ◽  
João Paulo Ramos Ferreira ◽  
Gustavo Hassemer ◽  
Rafael Trevisan
Keyword(s):  
Invasive Species ◽  
First Record ◽  
The South ◽  
Rottboellia Cochinchinensis

scholarly journals The pig of the Lençóis Maranhenses, first record of wild boar (Sus scrofa) in Maranhão State, Brazil

Check List ◽  
2019 ◽  
Vol 15 (4) ◽  
pp. 1-1
Author(s):  
Gilberto Nepomuceno Salvador ◽  
Nathali Garcia Ristau ◽  
Isabel Sanches da Silva ◽  
André Nunes
Keyword(s):  
Invasive Species ◽  
Wild Boar ◽  
Sus Scrofa ◽  
Native Species ◽  
National Park ◽  
First Record ◽  
Negative Effects ◽  
The World

The wild boar is one of the most dangerous invasive species. It is widespread in the world, including records for many Brazilian states. However, there is a lack of record from Maranhão state. In the present study, we reported a population of wild boar inside the Lençóis Maranhenses National Park, in Barrerinhas county, State of Maranhão. We discuss about the negative effects of this introduction on native species, including a record of predation by wild boar in nests of endangered turtles.

scholarly journals On track to becoming a cosmopolitan invasive species: First record of the box tree moth Cydalima perspectalis (Lepidoptera: Crambidae) in the African continent

2020 ◽  
Vol 29 (2) ◽  
pp. 27
Author(s):  
Karim Haddad ◽  
Konstantinos Kalaentzis ◽  
Jakovos Demetriou
Keyword(s):  
Invasive Species ◽  
First Record ◽  
African Continent ◽  
Ecological Implications

Native to E. Asia, the box tree moth Cydalima perspectalis (Walker, 1859) has managed to establish itself, and gradually expand its distribution, across Europe, Asia and recently America. This publication documents the first known record of the invasive species in Africa. The moth was observed in Constantine, Algeria in 2018 and was later identified as C. perspectalis. Possible scenarios of its introduction on the continent, as well as potential ecological implications, are discussed.

Sign in / Sign up

Export Citation Format

Share Document