Zooplankton community composition in Richter Lake, Wisconsin

1984 ◽  
Vol 22 (1) ◽  
pp. 525-532
Author(s):  
John E. Gannon ◽  
Roberta K. Cap ◽  
Kenton M. Stewart ◽  
Wilbur A. Stewart
Keyword(s):  
Community Composition ◽  
Zooplankton Community

Zooplankton generation following inundation of floodplain soils: effects of vegetation type and riverine connectivity

2017 ◽  
Vol 68 (1) ◽  
pp. 76 ◽  
Author(s):  
Alicia K. Catlin ◽  
Kevin J. Collier ◽  
Ian C. Duggan
Keyword(s):  
Community Composition ◽  
Vegetation Type ◽  
Juvenile Fish ◽  
Zooplankton Community ◽  
Soil Conditions ◽  
Native Forest ◽  
Soil Cores ◽  
Forest Remnants ◽  
Soil Temperatures ◽  
Zooplankton Production

We investigated the potential for zooplankton to emerge following inundation of dry soils on the lower Waikato River floodplain, North Island, New Zealand. Soil cores were collected from native forest remnants, scrub (predominantly Salix spp.) and pasture, and from sites inside or outside of stopbanks, to examine the effects of vegetation type and hydrological disconnection. We hypothesised that more larger-bodied zooplankton would emerge from forested floodplain areas, and that areas with high connectivity with the river would produce more zooplankton. Zooplankton appeared from soil cores within 3 days of wetting and no new taxa arose after 12 days. Community composition differed between vegetation types, with larger bodied cladocerans and copepods dominating forested and scrub sites, and rotifers dominating pastoral sites. Connectivity did not play a statistically significant role in determining community composition. Soil conditions were implicated as important in affecting emergent zooplankton community composition, with copepods and cladocerans characteristic of sites with wetter soils and bdelloid rotifers abundant in open sites with higher soil temperatures. Our findings indicate scrub and forested floodplains can be important areas for large-bodied zooplankton production, and that maintaining vegetative heterogeneity on floodplains may promote trophic subsidies for migrating juvenile fish as floodwaters subside.

scholarly journals Spatial patterns reveal strong abiotic and biotic drivers of zooplankton community composition in Lake Mývatn, Iceland

Ecosphere ◽  
2015 ◽  
Vol 6 (6) ◽  
pp. art105 ◽  
Author(s):  
Mireia Bartrons ◽  
Árni Einarsson ◽  
Regina L. G. Nobre ◽  
Cristina M. Herren ◽  
Kyle C. Webert ◽  
...  
Keyword(s):  
Community Composition ◽  
Spatial Patterns ◽  
Zooplankton Community ◽  
Lake Mývatn

Short-term toxicity effects of Prymnesium parvum on zooplankton community composition

2019 ◽  
Vol 81 (4) ◽  
Author(s):  
Brenda A. Witt ◽  
Jessica E. Beyer ◽  
Thayer C. Hallidayschult ◽  
K. David Hambright
Keyword(s):  
Community Composition ◽  
Zooplankton Community ◽  
Prymnesium Parvum ◽  
Short Term ◽  
Toxicity Effects

Seasonality and vertical zonation of zooplankton in a semi-enclosed sea lough

2001 ◽  
Vol 81 (2) ◽  
pp. 213-220 ◽  
Author(s):  
A. Greenwood ◽  
R.M. O'Riordan ◽  
D.K.A. Barnes
Keyword(s):  
Community Composition ◽  
Zooplankton Community ◽  
Gelatinous Zooplankton ◽  
Sampling Location ◽  
Flow Conditions ◽  
Vertical Zonation ◽  
Pelagic Species ◽  
Depth Preference ◽  
Lough Hyne

Zooplankton was collected by a diver-towed net close to the substratum at four depths (0, 6, 12 and 18 m) over a 17 month period in three locations in Lough Hyne, Co. Cork, Ireland. Zooplankton was identified to phylum or class levels and mean numbers were calculated for each taxon, site and depth. Seasonality was observed in several meroplanktonic groups (Echinodermata, Nemertea, Mollusca and fish postlarvae), and in gelatinous zooplankton. Depth preference was found to be statistically significant in the polychaetes (larvae and pelagic species), molluscan and ascidian larvae. However, the influence of depth on overall zooplankton community composition was found to be negligible. Sampling location, adjacent substrata and flow conditions were found to influence zooplankton in that area.

Temporal patterns of change in the necrophagous hyperbenthic zooplankton community of Lobster Bay, Cape d'Aguilar Marine Reserve, Hong Kong

2004 ◽  
Vol 84 (3) ◽  
pp. 531-538 ◽  
Author(s):  
Christine N.W. Lee ◽  
Brian Morton
Keyword(s):  
Organic Matter ◽  
Hong Kong ◽  
Life Cycle ◽  
Community Composition ◽  
Marine Reserve ◽  
Zooplankton Community ◽  
Seasonal Patterns ◽  
Baited Traps ◽  
One Year ◽  
Life Cycle Patterns

Crab-baited traps, with a 5-mm diameter opening, were deployed 90 mm off the seabed monthly at Lobster Bay, Hong Kong, for one year between 1998 and 1999. Visitors drawn to the traps were mainly species of Ceradocus (Gammaridea: Melitidae), Tisbe (Harpacticoida: Tisbidae) and Nebalia (Leptostraca: Nebaliacea). Apart from Ceradocus sp., all were scavengers with catches using baited traps significantly exceeding unbaited controls. Ceradocus sp. was apparently drawn to traps for refuge. The trapped scavenger community composition changed with deployment duration in the presence of bait. Nebalia sp., Neanthes cricognatha (Polychaeta: Nereidae) and Lepedepecreum sp. (Gammaridea: Lysianassoidea) were identified mostly two/three-days post-deployment, exhibiting a potential preference for rotten organic matter. Seasonal catches were also identified for all three visitors with maxima between October 1998 and April 1999. Such seasonal patterns might be related to either turbulence destabilizing the substratum during this period or life cycle patterns in the study area.

Regulation of Pigment Sedimentation by Photo-Oxidation and Herbivore Grazing

1990 ◽  
Vol 47 (6) ◽  
pp. 1166-1176 ◽  
Author(s):  
P. R. Leavitt ◽  
S. R. Carpenter
Keyword(s):  
Community Composition ◽  
Zooplankton Community ◽  
Sediment Traps ◽  
Reversed Phase ◽  
Algal Community ◽  
Pheophorbide A ◽  
Zooplankton Community Structure ◽  
Photo Oxidation ◽  
Phytoplankton Communities ◽  
Standing Stocks

Reversed-phase high pressure liquid chromatography was used to show that algal carotenoid sedimentation is regulated by photo-oxidation and herbivore grazing in three unproductive, north-temperate lakes. Comparison of algal carotenoid and biovolume standing stocks revealed that carotenoid concentrations in epilimnetic waters were influenced by nonplanktonic inputs of pigments as well as phytoplankton community composition. Sediment traps did not record weekly events in the water column. Pigments that were incorporated in zooplankton feces and sank rapidly (e.g. alioxanthm and pheophorbide a) were overrepresented in trap material relative to epilimnetic pigment standing stocks. Differential decay of pigments in traps could not account for this observed bias. Chlorophyll mass–balance budgets corroborated the important influence of grazing by large-bodied zooplankton on pigment sedimentation. Interannual differences in pigment sedimentation were caused by changes in zooplankton community structure and the vertical zonation of phytoplankton communities. In the absence of fecal transportation, photo-oxidation destroyed carotenoids prior to their sedimentation from the photic zone. Therefore, sedimentary carotenoid composition is regulated by loss processes as well as changes in algal community composition.

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