scholarly journals Preliminary assessment of factors influencing riverine fish communities in Massachusetts

2010 ◽  
Author(s):  
David S. Armstrong ◽  
Todd A. Richards ◽  
Sara L. Brandt
Keyword(s):  
Fish Communities ◽  
Preliminary Assessment ◽  
Factors Influencing ◽  
Riverine Fish

Large-scale patterns in species richness and composition of temperate riverine fish communities, south-eastern Australia

2000 ◽  
Vol 51 (2) ◽  
pp. 165 ◽  
Author(s):  
Peter C. Gehrke ◽  
John H. Harris
Keyword(s):  
Species Richness ◽  
Large Scale ◽  
Fish Communities ◽  
Fish Fauna ◽  
South Coast ◽  
North Coast ◽  
Large Spatial Scale ◽  
River Types ◽  
Eastern Australia ◽  
Riverine Fish

Riverine fish in New South Wales were studied to examine longitudinal trends in species richness and to identify fish communities on a large spatial scale. Five replicate rivers of four types (montane, slopes, regulated lowland and unregulated lowland) were selected from North Coast, South Coast, Murray and Darling regions. Fishwere sampled during summer and winter in two consecutive years with standardized gear that maximized the range of species caught. The composition of fish communities varied among regions and river types, with little temporal variation. Distinct regional communities converged in montane reaches and diverged downstream. The fish fauna can be classified into North Coast, South Coast, Murray and Darling communities, with a distinct montane community at high elevations irrespective of the drainage division. Species richness increased downstream in both North Coast and South Coast regions by both replacement and the addition of new species. In contrast, species richness in the Darling and Murray regions reached a maximum in the slopes reaches and then declined, reflecting a loss of species in lowland reaches. The small number of species is typical of the freshwater fish faunas of similar climatic regions world-wide. Fish communities identified in this study form logical entities for fisheries management consistent with the ecosystem-focused, catchment-based approach to river management and water reform being adopted in Australia.

Testing the diversity–biomass relationship in riverine fish communities

2020 ◽  
Vol 29 (10) ◽  
pp. 1743-1757
Author(s):  
Taylor Woods ◽  
Lise Comte ◽  
Pablo A. Tedesco ◽  
Xingli Giam
Keyword(s):  
Fish Communities ◽  
Riverine Fish

Seasonal dynamics of riverine fish communities using eDNA

2019 ◽  
Author(s):  
Tristan Milhau ◽  
Alice Valentini ◽  
Nicolas Poulet ◽  
Nicolas Roset ◽  
Pauline Jean ◽  
...  
Keyword(s):  
Seasonal Dynamics ◽  
Fish Communities ◽  
Riverine Fish

scholarly journals Factors influencing the structure and spatial distribution of fishes in the headwater streams of the Jaú River in the Brazilian Amazon

2014 ◽  
Vol 74 (3 suppl 1) ◽  
pp. s23-s32 ◽  
Author(s):  
A Kemenes ◽  
BR Forsberg
Keyword(s):  
Headwater Streams ◽  
Fish Communities ◽  
River System ◽  
Benthic Habitat ◽  
River Channels ◽  
Negro River ◽  
System A ◽  
Factors Influencing ◽  
Fish Traps ◽  
Made In

The aim of this study was to investigate the influence of spatial variation in river channels and habitats on the distribution of fish communities in the headwater streams of the Jaú River System, a blackwater tributary of the Negro River. Collections and measurements were made in 34 headwater streams during the period of November- December, 1998. Fish were captured with fish traps and hand nets along standard reaches of two meanders. Data on benthic habitat structure, stream depth and width were collected along lateral transects in each sample reach. A total of 66 fish species from 24 families were collected and classified into seven trophic guilds: allocthonous insectivore, autochthonous insectivore, general insectivore, piscivore, detritivorous planktivore, detritivorous insectivore and insectivorous piscivore. Variations in the distribution and diversity of bottom substrates were important factors influencing fish community structures in these systems. Also, variation in stream size explained the observed variability in fish communities.

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