Distribution, abundance, and mortality of small littoral-zone fishes in Sparkling Lake, Wisconsin

1987 ◽  
Vol 18 (2) ◽  
pp. 93-107 ◽  
Author(s):  
John Lyons
Keyword(s):  
Littoral Zone ◽  
Sparkling Lake

Prey Choice among Piscivorous Juvenile Walleyes (Stizostedion vitreum)

1987 ◽  
Vol 44 (4) ◽  
pp. 758-764 ◽  
Author(s):  
John Lyons
Keyword(s):  
Relative Abundance ◽  
Littoral Zone ◽  
Yellow Perch ◽  
Prey Selection ◽  
Stizostedion Vitreum ◽  
Species Preference ◽  
Large Numbers ◽  
Young Of The Year ◽  
Sparkling Lake ◽  
Pimephales Notatus

In order to examine prey selection by walleyes (Stizostedion vitreum), I compared prey electivities for walleyes in Sparkling Lake, Wisconsin, with the results of species-preference experiments in the laboratory. Before young-of-the-year (YOY) yellow perch (Perca flavescens) were present in the littoral zone of Sparkling Lake, juvenile walleyes fed significantly less on minnows and more on darters than expected based on the relative abundance of these two taxa in the lake. After large numbers of YOY yellow perch appeared in the littoral zone, walleyes fed primarily on the abundant yellow perch, although their diet was not significantly different from that predicted based on the relative abundance of minnows, darters, and YOY yellow perch in the lake. In laboratory experiments, juvenile walleyes ate more bluntnose minnows (Pimephales notatus) than YOY yellow perch, and almost never ate johnny darters (Etheostoma nigrum). Walleyes were more successful at capturing bluntnose minnows than YOY yellow perch, but even when this was taken into account, walleyes ate more bluntnose minnows and fewer YOY yellow perch than expected, indicating that walleyes preferred bluntnose minnows to YOY yellow perch. Differences in prey selection between walleyes in the field and in the laboratory may have been related to differences among prey in distribution and movement patterns in Sparkling Lake.

Species composition and distribution of marine macro algae at Co To and Thanh Lan archipelago

2020 ◽  
Vol 20 (3) ◽  
pp. 267-276
Author(s):  
Dam Duc Tien ◽  
Nguyen Thi Mai Anh ◽  
Linh Manh Nguyen ◽  
Pham Thu Hue ◽  
Lawrence Liao
Keyword(s):  
Species Composition ◽  
Littoral Zone ◽  
Marine Algae ◽  
Similarity Coefficient ◽  
Algal Flora ◽  
Average Value ◽  
Site Number ◽  
Species Composition And Distribution ◽  
Total Species ◽  
Macro Algae

This paper exhibites species composition and distribution of marine seaweed at 10 sites of Co To and Thanh Lan islands in May 2019. The studies record 76 species of marine algae in the area, belonging to four divisions: Cyanophytes, Rhodophytes, Ochrophytes and Chlorophytes. Among them, five species are classified into Cyanophytes (comprising 6.6% of total species); thirty-four species into Rhodophytes (44.7%); twenty-one species into Ochrophytes/Phaeophytes (27.6%) and sixteen species into Chlorophytes (21.1%). The species composition of marine seaweeds in Co To and Thanh Lan shows significant differences as follows: 22 species (sites number 4 and 10) to 58 species (site number 2) and the average value is 38.7 species per site. Sørensen similarity coefficient fluctuates from 0.33 (sites number 5 and 10) to 0.84 (sites number 1 and 3) and the average value is 0.53. The current investigations show that four species of twenty-one species are collected in the littoral zone and forty-two species in the sub-littoral zone (in which there are thirteen species distributed in both littoral zone and sub-littoral zone). The algal flora in Co To and Thanh Lan is characterized by subtropics.

Structural Changes in Phytoplankton of the Littoral Zone of Lake Baikal

2017 ◽  
Vol 53 (2) ◽  
pp. 16-24 ◽  
Author(s):  
N. A. Bondarenko ◽  
N. F. Logacheva
Keyword(s):  
Lake Baikal ◽  
Littoral Zone ◽  
Structural Changes

Prevailing Species of Bacillariophyta of the Littoral Zone of Lake Baikal (Russia)

2011 ◽  
Vol 13 (2) ◽  
pp. 101-116 ◽  
Author(s):  
T. A. Sherbakova ◽  
G. V. Pomazkina
Keyword(s):  
Lake Baikal ◽  
Littoral Zone

Composition, biomass, and photosynthetic activity of the benthic algal communities in a littoral zone of Lake Baikal in summer

Limnology ◽  
2002 ◽  
Vol 3 (3) ◽  
pp. 175-180 ◽  
Author(s):  
K. Nozaki ◽  
H. Morino ◽  
H. Munehara ◽  
V. G. Sideleva ◽  
K. Nakai ◽  
...  
Keyword(s):  
Lake Baikal ◽  
Littoral Zone ◽  
Photosynthetic Activity ◽  
Algal Communities

Surface vessel localization from wake measurements using an array of pressure sensors in the littoral zone

2021 ◽  
Vol 233 ◽  
pp. 109156
Author(s):  
Margus Rätsep ◽  
Kevin E. Parnell ◽  
Tarmo Soomere ◽  
Maarja Kruusmaa ◽  
Asko Ristolainen ◽  
...  
Keyword(s):  
Littoral Zone ◽  
Pressure Sensors ◽  
Surface Vessel

Spatial and temporal variation in littoral-zone benthic invertebrates from three south-central Ontario lakes

1995 ◽  
Vol 52 (7) ◽  
pp. 1406-1420 ◽  
Author(s):  
R. A. Reid ◽  
K. M. Somers ◽  
S. M. David
Keyword(s):  
Temporal Variation ◽  
Benthic Invertebrates ◽  
Seasonal Changes ◽  
Littoral Zone ◽  
Spatial And Temporal Variation ◽  
South Central ◽  
Temporal Factors ◽  
Follow Up Studies ◽  
Spatial Differences

Surveys of benthic invertebrates have revealed patterns attributed to the impacts of acid deposition. Unfortunately, these patterns may be confounded by temporal variation that will affect follow-up studies of the recovery of these communities. Here, we assess spatial and temporal variation in time-limited, kick-and-sweep collections of littoral-zone benthos. Spatial variation comprised five sites representing the predominant nearshore substrates in each of three lakes. Temporal variation spanned a different scale in each lake with five sites sampled: (i) twice on the same day, (ii) once a week for 3 weeks, and (iii) four times through the ice-free season. Variation was quantified using a model II analysis of variance. Spatial differences predominated in same-day samples (60.4% of the variation on average) and those collected over a 3-week period (46.1%). In contrast, samples collected over the ice-free season revealed that spatial and temporal factors accounted for 9.4 and 25.6% of the variation. We conclude that our collections of littoral macrobenthos are highly repeatable if sampling is restricted to short periods (e.g., 3 weeks). Surveys spanning longer periods may incorporate considerable temporal variation from seasonal changes in abundance.

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