Ictiofauna da área cárstica de Presidente Olegário, Estado de Minas Gerais, com ênfase nas espécies subterrâneas

Ichthyofauna from the karstic area of Presidente Olegário, north-central of Minas Gerais state, was studied on several occasions (two epigean streams and three caves), showing a moderate richness: 12 species recorded, distributed on Characiformes, Siluriformes and Cyprinodontiformes orders. Two species were recorded cohabiting the same subterranean stream, however, both are non-troglomorphic: the small catfish Trichomycterus brasiliensis and the small armoured catfish Parotocinclus sp.; the first one also occupying a reach of a vadose tributary from Vereda da Palha cave. The occurrence of individuals of different ranges of body size/age indicates that they are completing their life cycles in the hypogean realm, and are possibly troglophilic fishes (species able to live and complete their life cycle in the epigean and subterranean relams). Indeed, for Parotocinclus species was recorded a population variability for melanic pigmentation, which can represent an early stage of isolation and differentiation in the subterranean environment.A ictiofauna subterrânea da área cárstica de Presidente Olegário, centro-norte de Minas Gerais, foi inventariada em vários ocasiões de visita (dois riachos epígeos e três cavernas), mostrando uma riqueza relativamente elevada para a área amostrada (cerca de 1,5 km2): 12 espécies registradas, distribuídas nas ordens Characiformes, Siluriformes e Cyprinodontiformes. Duas espécies não-troglomórficas foram registradas coabitando riachos subterrâneos, o bagrinho Trichomycterus brasiliensis e o cascudinho Parotocinclus sp., a primeira também ocorrendo em tributário vadoso superior na caverna Vereda da Palha. A ocorrência de indivíduos de diferentes faixas de tamanho corpóreo/etárias indica que este peixes estão completando seus ciclos de vida no meio hipógeo, e, são possivelmente troglófilos (espécies capazes de viver e completar seus ciclo de vida tanto no ambiente epígeo quanto no subterrâneo). Ainda, em Parotocinclus sp. foi registrada variabilidade populacional quanto à pigmentação melânica cutânea, o que pode representar uma fase inicial do processo de isolamento e diferenciação no ambiente subterrâneo

Analisis dan Perancangan Sistem Informasi Manajemen pada Akademis AMIK ASM LAKSI 31

The purpose of this article is to develop a computer-based Academic management information system for AMIK LAKSI 31 ASM by using Internet technology which functions to integrate internal processes with the academic learning process. The method of this research includes analysis of campus internal administration process of teaching and learning and development of a computer-based application that supports the process. In analyzing the campus administrative processes, several activities are carried out in order to get both information required and design of application built in accordance with needs. The result obtained is an academic information system model to be used in ASM AMIK LAKSI 31 based on web that can help the institution to improve efficiency and effectiveness of administrative processes and learning process

Taxonomic study on a collection of terrestrial and freshwater gastropods from caves in Bahia state, Brazil, with the description of a new species

Gastropod samples were collected during expeditions to caves in Bahia state, northeastern Brazil, and are studied herein. Collection took place over the past five years, and gastropods were found in 14 caves distributed across six different municipalities: Campo Formoso, Carinhanha, Coribe, Feira da Mata, Central, and Ituaçu. A total of 19 species-level taxa of terrestrial and freshwater gastropods (representing 10 families) were collected, including representatives of the taxa Neritimorpha, Caenogastropoda, Hygrophila, and Stylommatophora. A new species is described herein: Helicina marfisae sp. nov. (Neritimorpha, Helicinidae)

New records of land-snail species from caves of Mato Grosso state, Midwest Brazil (Gastropoda, Neritimorpha and Stylommatophora)

Recent collection efforts in caves of Mato Grosso state, Brazilian Midwest, have brought to light specimens of four Neritimorpha and Stylommatophora land-snail species previously unrecorded from that state: Helicina fulva d’Orbigny, 1835 (Family Helicinidae), Streptartemon abunaensis (F. Baker, 1914) and Streptartemon decipiens (Crosse, 1865) (family Streptaxidae), and Systrophia alcidiana Ancey, 1892 (family Scolodontidae). These records are not only the first from that state, but also represent large extensions to those species’ known distributions, as well as their first records from a cave habitat

Phylogenetic position of the relict South American genus Idiopyrgus Pilsbry, 1911 (Gastropoda, Truncatelloidea), with the description of two new cave species

Idiopyrgus is a relict genus of freshwater snails from Brazil traditionally classified in the family Pomatiopsidae. Herein, we use molecular data from newly acquired specimens to test that classification through Bayesian inference phylogenetic analysis. We conclude that Idiopyrgus belongs in the Gondwanan family Tomichiidae, together with the African genus Tomichia and the Australian genus Coxiella. Furthermore, we reassess currently synonymized genus- and species-level names in Idiopyrgus. The genera Hydracme and Aquidauania are considered synonymous with Idiopyrgus. The species I. brasiliensis and I. pilsbryi are restored as accepted species; I. walkeri is considered a taxon inquirendum. Two new species from caves in Bahia state are described herein: Idiopyrgus adamanteus sp. nov. and Idiopyrgus minor sp. nov

A expressão do comportamento agonístico em Ituglanis ramiroi Bichuette & Trajano 2004 (Siluriformes: Trichomycteridae) e sua aplicação para conservação

Ituglanis ramiroi lives in a special habitat in São Bernardo Cave, mostly upper aquifers fed by infiltration water in the rock. The species was previously studied in relation to reaction to the light; to the spontaneous behavior; to the feeding behavior; and to the locomotor rhythmicity, with evidences of specializations in these behaviors. In the present work, we present the description of agonistic behavior in this species. We verified that the agonistic component was weakly expressed in the tested individuals and could represent a character regression, therefor, a specialization. Specialized behavior in troglobitic species suggests unique evolutionary histories, and must be considered for conservation purpose.Ituglanis ramiroi ocorre em ambientes específicos na Caverna São Bernardo, localizado no Parque Estadual de Terra Ronca, nordeste de Goiás, em aqüíferos superiores alimentados por água de infiltração na rocha. A espécie foi estudada previamente em relação à reação à luz; ao comportamento espontâneo; ao comportamento alimentar; e à ritimicidade locomotora, com evidências de especializações nestes. No presente trabalho apresentamos a descrição do comportamento agonístico nessa espécie. Verificamos que o componente comportamental agonístico expressou-se fracamente nos indivíduos testados, podendo representar uma regressão de caráter, portanto uma especialização. Comportamentos especializados, recorrentes em espécies troglóbias sugerem histórias evolutivas únicas, o que deve ser considerado para fins de conservação

On the enigmatic troglobitic scorpion Troglorhopalurus translucidus: distribution, description of adult females, life history and comments on Rhopalurus lacrau (Scorpiones: Buthidae)

ABSTRACT We describe for the first time the adult female of the troglobitic scorpion Troglorhopalurus translucidus Lourenço Baptista & Giupponi, 2004, and broaden its known distribution to other sandstone caves at Chapada Diamantina's region. The life history of T. translucidus is reconstructed through morphometric measurements, with a multivariate analysis applied on a set of 16 specimens in all stages (including the holotype) and biological notes. The ontogeny of T. translucidus has seven stages and the litter size is 43 (n = 1). We discuss the isolation of T. translucidus and Rhopalurus lacrau Lourenço & Pinto-da-Rocha, 1997 in caves of Chapada Diamantina, and discuss their troglomorphisms (autapomorphies) among other species related with Rhopalurus . Both species must be considered fragile due their restricted endemism at Chapada Diamantina

Ictiofauna epígea e subterrânea na área cárstica da Serra do Ramalho, nordeste brasileiro, com listas de peixes troglóbios e troglófilos no Brasil

After an ichthyofaunistic survey in several epigean (surface) water bodies of the Serra do Ramalho, southern Bahia, conducted in May 2007, 44 species were recorded; in addition, three non-troglomorphic (normally eyed and pigmented) and two troglomorphic species were recorded only in caves, totaling 49 species of fishes for the area, which represents a little more than one fourth of the total registered in the literature for the entire Rio São Francisco basin. In these caves, which have been studied since 2005, eight non-troglomorphic species were sampled and their presence in both epigean and subterranean habitats, associated to the lack of morphological differences, indicate that they may be either troglophiles (species encompassing individuals able to live and complete their life cycle either in the surface or in the subterranean environment), trogloxenes (individuals regularly found in subterranean habitats, but which must return periodically to the surface in order to complete their life cycle) or even accidental in caves. In addition, two troglomorphic species (with reduced eyes and melanic pigmentation when compared to close epigean relatives), belonging respectively to the genera Rhamdia and Trichomycterus, were recorded exclusively in caves, thus classified as troglobites. Interestingly, no epigean representative of the genus Trichomycterus was collected. The new data are integrated into updated lists of Brazilian troglobitic and troglophilic fishes, based on published data and new records recently confirmed.Um levantamento ictiofaunístico em corpos d'água epígeos (superficiais) da Serra do Ramalho, sul da Bahia, realizado em maio de 2007, resultou no registro de 44 espécies; além destas, três espécies com olhos e pigmentação normais (não-troglomórficas) e duas espécies troglóbias foram encontradas apenas em cavernas, perfazendo um total de 49 espécies na Serra do Ramalho, o que representa pouco mais de um quarto do total registrado na literatura em toda a bacia do Rio São Francisco. Nas cavernas desta área, que vêm sendo intensivamente investigadas desde 2005, oito espécies de peixes não-troglomórficos foram registradas. Sua presença tanto no meio epígeo como no subterrâneo, aliada à ausência de diferenciação morfológica, indica que estas últimas podem ser troglófilas (espécies com indivíduos capazes de viver e completar o ciclo de vida tanto no ambiente superficial como no subterrâneo), trogloxenas (espécies com indivíduos encontrados regularmente em cavernas, mas que devem sair periodicamente ao meio epígeo para completar seu ciclo de vida) ou mesmo acidentais em cavernas. Por outro lado, duas espécies troglomórficas (com redução de olhos e pigmentação melânica quando comparadas com aparentados epígeos próximos), pertencentes respectivamente aos gêneros Rhamdia e Trichomycterus, foram encontradas exclusivamente em cavernas, o que justifica sua classificação como troglóbias (espécies exclusivamente subterrâneas). É interessante notar que nenhum representante epígeo do gênero Trichomycterus foi capturado. Os novos dados são integrados em listas atualizadas de peixes troglóbios e troglófilos no Brasil, baseadas tanto em dados publicados como em novos registros confirmados recentemente

First report of armored catfishes Callichthyinae Bonaparte, 1838 (Siluriformes: Callichthyidae) in the subterranean domain of northern and northeastern Brazil

The first occurrence of the armored catfishes of the subfamily Callichthynae is reported in subterranean water bodies of northern and northeastern Brazil. The records include 3 species, each occurring in 1 of the 3 caves in the central and northeastern regions of Brazil: Callichthys callichthys from Casa do Caboclo cave, Sergipe state; Hoplosternum littorale from the Gruna da Lagoa do Meio, Bahia state; and Megalechis thoracata, from Casa de Pedra cave, Tocantins state

Cave-dwelling gastropods (Mollusca: Gastropoda) of Brazil: state of the art and conservation

An up-to-date list of exclusively cave-dwelling gastropod species recorded in Brazil is presented including updated taxonomy, detailed geographic information, and illustration of types. The list includes 18 cave-exclusive (troglobitic) gastropods encompassing 15 land and three freshwater species, with the status of further species pending additional studies. Their unusual morphology and diversity are discussed, as well as their conservation status and prospects in the current Brazilian environmental and political scenario