A summary of the benthic-invertebrate and fish-community data from streams in the Indianapolis metropolitan area, Indiana, 1981-2012

2015 ◽  
Author(s):  
David C. Voelker ◽  
Aubrey R. Bunch ◽  
Edward G. Dobrowolski ◽  
Megan E. Shoda
Keyword(s):  
Metropolitan Area ◽  
Fish Community ◽  
Benthic Invertebrate ◽  
Community Data

scholarly journals Transfer of mercury from benthic invertebrates to fishes in lakes with contrasting fish community structures

1997 ◽  
Vol 54 (6) ◽  
pp. 1320-1330 ◽  
Author(s):  
Allan HK Wong ◽  
Donald J McQueen ◽  
D Dudley Williams ◽  
Eric Demers
Keyword(s):  
Benthic Invertebrates ◽  
Fish Community ◽  
Benthic Invertebrate ◽  
Fish Community Structure ◽  
Stunted Growth ◽  
Consumption Rates ◽  
Order Of Magnitude ◽  
Total Hg ◽  
Physical And Chemical ◽  
Benthivorous Fishes

We examined the flow of mercury (Hg) from benthic invertebrates to fishes in lakes with contrasting fish community structure. The study was carried out in two whole lakes in southcentral Ontario in 1992. Both were remote from direct sources of contamination and were chosen because of their physical and chemical similarities. Although the fish communities in the two lakes were qualitatively similar, the total number of fishes in Ranger Lake was an order of magnitude smaller than that in Mouse Lake. As a result of the lower net predation from benthivorous fishes, documented in earlier studies, Ranger Lake benthic invertebrate populations were significantly higher. However, benthic invertebrate taxa in Mouse Lake were generally larger and had higher Hg concentrations. This was partly attributed to the stunted growth of Mouse Lake fishes, which did not allow them to prey on larger benthos as a result of gape limitations. Despite the lower Hg concentrations in Ranger Lake benthos, total benthic invertebrate Hg pools were higher in this lake as a result of its higher total benthic invertebrate biomass. However, the transfer of total Hg from benthic invertebrates to fishes was higher in Mouse Lake due to the higher consumption rates of benthivorous fishes.

scholarly journals A newly developed dispersal metric indicates the succession of benthic invertebrates in restored rivers

2016 ◽  
Author(s):  
Fengqing Li ◽  
Andrea Sundermann ◽  
Stefan Stoll ◽  
Peter Haase
Keyword(s):  
Benthic Invertebrates ◽  
Adult Life ◽  
Benthic Invertebrate ◽  
Early Years ◽  
First Year ◽  
Dispersal Capacity ◽  
Invertebrate Communities ◽  
Temporal Succession ◽  
Community Data ◽  
Benthic Invertebrate Communities

Dispersal capacity plays a fundamental role in the riverine benthic invertebrate colonization of new habitats that emerges following flash floods or restoration. However, an appropriate measure of dispersal capacity for benthic invertebrates is still lacking. The dispersal of benthic invertebrates occurs mainly during the aquatic (larval) and aerial (adult) life stages, and the dispersal of each stage can be further subdivided into active and passive modes. Based on these four possible dispersal modes, we first developed a metric (which is very similar to the well-known and widely used saprobic index) to estimate the dispersal capacity for 528 benthic invertebrate taxa by incorporating a weight for each mode. Second, we tested this metric using benthic invertebrate community data from a) 23 large restored river sites with improvements of river bottom habitats dating back 1 to 10 years, b) 23 unrestored sites, and c) 298 adjacent surrounding sites in the low mountain and lowland areas of Germany. We hypothesize that our metric will reflect the temporal succession process of benthic invertebrate communities colonizing the restored sites, whereas no temporal changes are expected in the unrestored and surrounding sites. By applying our metric to these three river treatment categories, we found that the average dispersal capacity of benthic invertebrate communities in the restored sites significantly decreased in the early years following restoration, whereas there were no changes in either the unrestored or the surrounding sites. After all taxa had been divided into quartiles representing weak to strong dispersers, this pattern became even more obvious; strong dispersers colonized the restored sites during the first year after restoration and then significantly decreased over time, whereas weak dispersers continued to increase. The successful application of our metric to river restoration might be promising in further applications of this metric, for example, in assessments of rivers or metacommunity structure.

Local habitat features explain the distribution of the imperiled grass pickerel (Esox americanus vermiculatus)

2019 ◽  
Vol 97 (5) ◽  
pp. 479-487
Author(s):  
J.E. Colm ◽  
N.E. Mandrak ◽  
B.L. Tufts
Keyword(s):  
Fish Community ◽  
Agricultural Land ◽  
Sampling Methods ◽  
Habitat Preferences ◽  
Field Sampling ◽  
Community Assemblage ◽  
Habitat Features ◽  
Community Data ◽  
Local Habitat ◽  
Habitat Variables

We investigated patterns of grass pickerel (Esox americanus vermiculatus Lesueur, 1846) distribution in three watersheds in Ontario, Canada, using site- and reach-scale habitat variables and fish community assemblage data to determine why this species occurs sporadically throughout watersheds despite abundant seemingly suitable, but unoccupied, habitat. Habitat and fish community data were collected using conventional field sampling methods, and reach-scale habitat data were compiled with the aid of a geographic information system. We found that occupied sites had lower baseflow indices and reach slopes but higher conductivity and agricultural land uses than unoccupied sites. More grass pickerel were detected when conductivity, channel cover, and wetlands in the floodplain were highest and bank slopes lowest; this is consistent with habitat preferences described elsewhere in its range. Habitat features at the site scale appeared more important than reach-scale features suggesting that grass pickerel may be using small habitat patches. This study identifies habitat elements important to grass pickerel and offers insights into management implications.

scholarly journals Water quality, habitat, land use, waterfowl, and fish community data from wetlands in the Boreal Transition Zone, Alberta

Ecology ◽  
2014 ◽  
Vol 95 (3) ◽  
pp. 789-789 ◽  
Author(s):  
Agnes S. Wong ◽  
Suzanne E. Bayley ◽  
Jonathan E. Thompson
Keyword(s):  
Water Quality ◽  
Land Use ◽  
Transition Zone ◽  
Fish Community ◽  
Community Data

scholarly journals A newly developed dispersal capacity metric indicates succession of benthic invertebrates in restored rivers

2015 ◽  
Author(s):  
Fengqing Li ◽  
Andrea Sundermann ◽  
Stefan Stoll ◽  
Peter Haase
Keyword(s):  
Benthic Invertebrates ◽  
Adult Life ◽  
Benthic Invertebrate ◽  
Early Years ◽  
First Year ◽  
Dispersal Capacity ◽  
Invertebrate Communities ◽  
Temporal Succession ◽  
Community Data ◽  
Benthic Invertebrate Communities

Dispersal capacity plays a fundamental role in riverine benthic invertebrates’ colonization of new habitats that emerge following flash floods or restoration. However, an appropriate measure of dispersal capacity for benthic invertebrates is still lacking. Dispersal of benthic invertebrates occurs mainly during the aquatic (larvae) and aerial (adult) life stages, and each can be further subdivided into active and passive modes. Based on these totally four dispersal modes, we firstly developed a simple metric to estimate dispersal capacity for 528 benthic invertebrate taxa by incorporating weight for each mode. Secondly we tested this metric using benthic invertebrate community data from a) 23 restored river sites all involving an improvement of river bottom habitats dating back 1 to 10 years, b) 23 unrestored sites, and c) 298 adjacent surrounding sites in the low mountain and lowland areas of Germany. We hypothesize that our metric will reflect the temporal succession process of benthic invertebrate communities colonizing the restored sites, while no temporal changes are expected in the unrestored and surrounding sites. By applying our metric to these three river treatment categories, we found that the average dispersal capacity of benthic invertebrate communities in the restored sites decreased significantly within the early years following restoration, while there were no changes in both unrestored and surrounding sites. After dividing all taxa into quartiles representing weak to strong dispersers, this pattern became even more obvious; strong dispersers colonized the restored sites during the first year after restoration and then significantly decreased over time, while weak dispersers continuously increased. The successful application of our metric to river restoration might be promising to further apply this metric for example in river assessments or meta-community structure.

scholarly journals Fish community in a surf zone of the northern Sicilian coast (Mediterranean Sea): diversity and functional guild composition

2015 ◽  
Vol 16 (3) ◽  
pp. 502 ◽  
Author(s):  
V. ESPOSITO ◽  
L. CASTRIOTA ◽  
P. BATTAGLIA ◽  
P. CONSOLI ◽  
T. ROMEO ◽  
...  
Keyword(s):  
Fish Community ◽  
Surf Zone ◽  
Benthic Invertebrate ◽  
Tyrrhenian Sea ◽  
Catch Per Unit Effort ◽  
Piscivorous Fish ◽  
Liza Aurata ◽  
Functional Guild ◽  
Guild Composition ◽  
Southern Tyrrhenian Sea

Fish assemblage in a surf zone of the southern Tyrrhenian Sea was investigated for the first time. Samples were collected during four surveys by a modified beach-seine, from June 2005 to May 2006. Overall, 42 species belonging to 19 families were recorded. Among them, Sardina pilchardus showed the highest abundance values, while Mugilids (Oedalechilus labeo and Liza aurata) were the most frequently caught species. The fish community was dominated by pelagic and gregarious species using this habitat as a foraging ground and recruitment area. Juveniles and early adults made up the largest proportion of the ichthyofauna. Fishes inhabiting the surf zone were mainly strictly benthic invertebrate feeders and invertivorous/piscivorous fish; strictly planktivorous were represented by few species but strongly dominant in terms of catch per unit effort; strictly piscivorous fish were poorly represented. Fish composition varied over the study period with the greatest abundance in May and December, and the highest richness and diversity in October.

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