A Complete Fisheries Inventory of the Chulitna River Basin, Lake Clark National Park and Preserve, Alaska: Example of a Minimally Disturbed Basin

2020 ◽  
Vol 149 (1) ◽  
pp. 14-26 ◽  
Author(s):  
Robert M. Hughes ◽  
George Boxall ◽  
Alan T. Herlihy ◽  
Jason Adams ◽  
Daniel B. Young
Keyword(s):  
2021 ◽  
Vol 14 (2) ◽  
pp. 1143
Author(s):  
Karla Campagnolo ◽  
Sofia Melo Vasconcellos ◽  
Vinicius Santanna Castiglio ◽  
Marina Refatti Fagundes ◽  
Masato Kobiyama

A representação do processo precipitação-vazão por meio de modelos hidrológicos conceituais visa quantificar o volume escoado em uma bacia como consequência de uma determinada precipitação. Aliados a eles, os índices têm sido uma ferramenta útil para quantificar eventos extremos, como o Soil Moisture Index (TMI) que foi formulado a partir do modelo hidrológico Tank Model. Desta forma, o objetivo deste trabalho foi aplicar o Tank Model para a bacia do rio Perdizes, em Cambará do Sul (RS), e avaliar o desempenho do TMI para prever a ocorrência de cheias, limiar este utilizado para o fechamento da Trilha do rio do Boi, no Parque Nacional de Aparados da Serra (PNAS). Os dados utilizados na simulação foram obtidos pelas estações meteorológica e fluviométrica instaladas na bacia. Após a calibração e validação de três séries históricas no Tank Model, os valores obtidos do TMI foram comparados com os dias que a Trilha foi fechada, a partir de altos níveis registrados no rio Perdizes. O TMI demonstrou que o nível utilizado para fechar a Trilha do rio do Boi correspondeu a cheias em 72% das vezes. Portanto, o TMI mostrou bom desempenho ao indicar a ocorrência de cheias na área estudada, sendo uma ferramenta útil para a tomada de decisões na gestão do PNAS.  Application of the Tank Model as a Management Tool in the Perdizes River Basin - Cambará do Sul/RS.ABSTRACTThe representation of the rainfall-runoff process by means of conceptual hydrological models aims to quantify the volume drained in a basin as result of a specific precipitation. Allied to them, the indices have been a useful tool to quantify extreme events, such as the Tank Moisture Index (TMI) which was formulated from the Tank Model. Thus, the objective of this work was to apply the Tank Model to the Perdizes river basin, in Cambará do Sul (RS), and to evaluate the performance of the TMI to predict the occurrence of floods, the threshold used for the closure of the Rio do Boi trail, in the Aparados da Serra National Park (PNAS). The data used in the simulation were obtained at the meteorological and fluviometric stations installed in the basin. After the calibration and validation of three historical series in the Tank Model, the values obtained in the TMI were compared with the days when the Trail was closed, from high levels recorded in the Perdizes river. The average TMI values demonstrated that the level used to close the Rio do Boi Trail corresponded to floods 72% of the time, and the median, 75%. Therefore, the TMI showed good performance in indicating the occurrence of floods in the study area, being a useful tool for decision making in the PNAS management.Keywords: Tank Moisture Index, trail closure, Aparados da Serra National Park.


Check List ◽  
2020 ◽  
Vol 16 (6) ◽  
pp. 1519-1522
Author(s):  
Patricio Contreras Bravo ◽  
Fernando Bustos Véliz ◽  
Ignacio Rodriguez-Jorquera

A new record of the Endangered, Chilean endemic Insuetophrynus acarpicus (Barrio 1970) is reported from Alerce Costero National Park, Chile. This species of frog is one of the most threatened anurans in the world, and, consequently, any new record of this species is highly important for assessing its known distribution and proposing urgent conservation actions. The new record is the first known site in the Chaihuín river basin, 15 km northwest of a site described by Segura in 2017. The new record fills a gap of the known distribution of I. acarpicus.


Zootaxa ◽  
2018 ◽  
Vol 4476 (1) ◽  
pp. 109 ◽  
Author(s):  
NGUYEN DINH TAO ◽  
LIANG CAO ◽  
SHUQING DENG ◽  
E ZHANG

Speolabeo hokhanhi, new species, is here described from Hang Va Cave in Phong Nha-Ke Bang National Park (Son River basin) in Central Vietnam. It can be distinguished from S. musaei by having no papillae on the lower lip, no hump immediately behind the head, a duckbilled snout, a shorter caudal peduncle (length 16.8–18.6% SL), and the pelvic fin inserted closer to the snout tip than to the caudal-fin base.


Phytotaxa ◽  
2019 ◽  
Vol 415 (4) ◽  
pp. 199-207
Author(s):  
FRANCISCO FARROÑAY ◽  
RICARDO DE OLIVEIRA PERDIZ ◽  
EDUARDO MAGALHÃES BORGES PRATA ◽  
ALBERTO VICENTINI

We present the amended description of the species Acmanthera minima and A. parviflora based on specimens collected in the Lower Negro River basin and the Serra do Aracá National Park, respectively, in the Amazonas State, Brazil. We also provide photographs, a distribution map, notes on conservation status and a key to all species of the genus Acmanthera. We report new records and range extension for Acmanthera latifolia and A. minima, previously known only for the Negro and Madeira River basins, respectively.


Zootaxa ◽  
2010 ◽  
Vol 2600 (1) ◽  
pp. 1 ◽  
Author(s):  
SÉBASTIEN LAVOUÉ ◽  
JOHN P. SULLIVAN ◽  
MATTHEW E. ARNEGARD

Here we examine new collections of Petrocephalus species (Osteoglossomorpha: Mormyridae: Petrocephalinae) made within Odzala National Park in the Republic of the Congo (Lékoli River drainage, northwestern Congo River basin). We compare these collections to type material of all nominal Petrocephalus species described from the Congo basin and the adjacent Lower Guinea ichthyofaunal province. Based on morphology and electric signal characteristics we recognize eleven distinct species of Petrocephalus in these collections, including five new species described herein: Petrocephalus binotatus, Petrocephalus zakoni n. sp., Petrocephalus valentini n. sp., Petrocephalus balayi, Petrocephalus microphthalmus, Petrocephalus odzalaensis n. sp., Petrocephalus christyi, Petrocephalus sauvagii, Petrocephalus pulsivertens n. sp., Petrocephalus grandoculis and Petrocephalus mbossou n. sp. Each species can be distinguished by a combination of characters, the most important of which are numbers of dorsal and anal fin rays, mouth width, eye size, number of upper jaw teeth and melanin markings. Electric signal waveform characteristics are useful for diagnosing a few of the species. The eleven Petrocephalus species of the Odzala assemblage appear to be reproductively isolated biological species based on genetic evidence we have gathered from the mitochondrial cytochrome b gene. Our study of Petrocephalus type material reveals that Petrocephalus guttatus was erroneously assigned to this genus; we now assign this species to Pollimyrus within the sister subfamily, Mormyrinae. Additionally, we provide a dichotomous key to the eleven Petrocephalus species of Odzala National Park.


Zootaxa ◽  
2019 ◽  
Vol 4652 (3) ◽  
pp. 533-543
Author(s):  
HENRY L. JR. BART ◽  
RAY C. SCHMIDT ◽  
WANJA DOROTHY NYINGI ◽  
JOSEPH GATHUA

Sampling of streams in the middle reaches of the Tana River Basin in Meru National Park, Kenya, from 2010 to 2012 for an NSF-funded International Research Experiences for Students (IRES) project, resulted in the capture of a number of specimens of what were first thought to be Neobola fluviatilis.  On closer examination the specimens were determined to represent a distinct species, endemic to the Tana River basin, which is herein formally described. The new species is readily diagnosed from N. fluviatilis by higher counts of lateral line, pre-dorsal, and caudal peduncle circumferential scales, higher numbers of pectoral rays, lower numbers of anal fin rays, and a shorter anal-fin base length. 


1955 ◽  
Vol 20 (3) ◽  
pp. 277-280 ◽  
Author(s):  
Joseph R. Caldwell

From November 15, 1950, to April 7, 1951, an archaeological survey was conducted by the Smithsonian River Basin Surveys, in cooperation with the National Park Service and the Corps of Army Engineers, of the area to be flooded by the dam at Buford, Georgia. On the upper Chattahoochee River we came across an aboriginal cooking pit containing quantities of pottery which could be unhesitatingly identified as historic Cherokee. While a certain amount of confusion as to just what might constitute Cherokee ceramics was dispelled some years ago by the publication of Hiwassee Island, it does seem advisable to present the Buford material as an areal and temporal variant. It differs in some particulars from the Overhill pottery described by Lewis and Kneberg from the Little Tennessee; there are other differences from recently identified Cherokee pottery from the middle Etowah River in northwest Georgia; and again, it is unlike some ceramic assemblages from Lower Cherokee towns in northeast Georgia and western South Carolina.


Author(s):  
Jean Barloy ◽  
Florin Prunar

New records of Carabus (Morphocarabus) rothi alutensis Săvulescu, 1972 (Insecta: Coleoptera) in Olt River Basin (Romania) Carabus (Morphocarabus) rothi alutensis Săvulescu, 1972 was recorded only from the right bank of the Olt River (Călimăneşti, Râmnicu Vâlcea). The authors' recent studies (2008-2009) allowed the record of new sample points (for this subspecies) located on the left side of the river: the Cozia National Park at various altitudes and around Dăeşti locality.


Sign in / Sign up

Export Citation Format

Share Document