Alamy logo

. Brigham Young University science bulletin. Biology -- Periodicals. 56 BniGHAM Young University Science Bulletin mum production on the substrate in late spring and early summer and in late fall and early winter. Benthic diatoms are the main contributors to the nannoplankton, and the composition and seasonal fluctuations of the nannoplankton are largely determined by similar fluctuations on the substrate. Water level fluctuations, water temperature changes, and mechanical distur- bances also appear to be factors influencing nannoplankton levels. Pcriphyton colonization is higher in the right f

. Brigham Young University science bulletin. Biology -- Periodicals. 56 BniGHAM Young University Science Bulletin mum production on the substrate in late spring and early summer and in late fall and early winter. Benthic diatoms are the main contributors to the nannoplankton, and the composition and seasonal fluctuations of the nannoplankton are largely determined by similar fluctuations on the substrate. Water level fluctuations, water temperature changes, and mechanical distur- bances also appear to be factors influencing nannoplankton levels. Pcriphyton colonization is higher in the right f Stock Photo
Preview

Image details

Contributor:

Library Book Collection / Alamy Stock Photo

Image ID:

RH43PF

File size:

7.2 MB (464.4 KB Compressed download)

Releases:

Model - no | Property - noDo I need a release?

Dimensions:

1569 x 1593 px | 26.6 x 27 cm | 10.5 x 10.6 inches | 150dpi

More information:

This image is a public domain image, which means either that copyright has expired in the image or the copyright holder has waived their copyright. Alamy charges you a fee for access to the high resolution copy of the image.

This image could have imperfections as it’s either historical or reportage.

. Brigham Young University science bulletin. Biology -- Periodicals. 56 BniGHAM Young University Science Bulletin mum production on the substrate in late spring and early summer and in late fall and early winter. Benthic diatoms are the main contributors to the nannoplankton, and the composition and seasonal fluctuations of the nannoplankton are largely determined by similar fluctuations on the substrate. Water level fluctuations, water temperature changes, and mechanical distur- bances also appear to be factors influencing nannoplankton levels. Pcriphyton colonization is higher in the right fork of Huntington Creek than lower in the can- yon, and nannoplankton amounts increase as the water moves downstream. However, the in- crease is not entirely cumulative since destruc- tion of cells occurs in the turbulent water. True planktonic algae, including Asterionella formosa. Frapilana crotonensis, Dinohnjon cijl- inclricum, Pandorina morum, and Cerathim hir- undinella occur in the plankton of Huntington Creek. These algae are thought to originate in reservoirs on the upper drainage of the left fork of Huntington Creek, and their occurrence in the creek basically correlates with algal cycles in these reservoirs. Filamentous algae are also important con- stituents of the Huntington Creek algal flora. Hydrurus foetidus grows profusely from late winter to early summer, especially in the upper reaches of the canyon, forming thick mucilagi- neous growths on stones and rocks on the stream bed. Blue green algae are present on the creek substrate throughout the year, but show high- est production during summer and fall when encrusted communities form on the stony sub- strate. Other filamentous algae present in the canyon include Ulothrix tenuissima, U. zonata, and Stigeoclonium stagnatile, which occur most- ly in the spring, and Mougeotia spp., Spirogyra spp., Zt/gnerna spp., and Vaucheria geminata, which grow in backwaters, pools, and ponds along the creek through the summer an

Save up to 30% with our image packs

Pre-pay for multiple images and download on demand.

View discounts

Search stock photos by tags