scholarly journals Characteristics of primary production in the littoral zone of lake.

2002 ◽  
Vol 63 (3) ◽  
pp. 225-231 ◽  
Author(s):  
Kentaro NOZAKI
Keyword(s):  
Primary Production ◽  
Littoral Zone

scholarly journals Effects of Invasive Watermilfoil on Primary Production in Littoral Zones of North-Temperate Lakes

Diversity ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 82
Author(s):  
Ryan R. Van Goethem ◽  
Casey J Huckins ◽  
Amy M. Marcarelli
Keyword(s):  
Primary Production ◽  
Native Species ◽  
Littoral Zone ◽  
Gross Primary Production ◽  
Lake Ecosystem ◽  
Primary Producers ◽  
Temperate Lakes ◽  
Lake Ecosystems ◽  
Species Invasions ◽  
Littoral Zones

Species invasions are changing aquatic ecosystems worldwide. Submerged aquatic macrophytes control lake ecosystem processes through their direct and indirect interactions with other primary producers, but how these interactions may be altered by macrophyte species invasions in temperate lakes is poorly understood. We addressed whether invasive watermilfoil (IWM) altered standing crops and gross primary production (GPP) of other littoral primary producers (macrophytes, phytoplankton, attached algae, and periphyton) in littoral zones of six Michigan lakes through a paired-plot comparison study of sites with IWM (standardized abundance 7–56%) compared to those with little or no IWM (standardized abundance 0–2%). We found that primary producer standing crops and the GPP of epiphytes, phytoplankton, and benthic periphyton were variable among lakes and not significantly different between paired study plots. Macrophyte standing crops predicted rates of benthic periphyton GPP, and standing crops of all other primary producers across all study plots. Overall, our results suggest that the effects of IWM on other primary producers in littoral zones may be lake-specific, and are likely dependent on the density of IWM, or whether it is functionally similar to other native species that it replaces or co-exists with. Moreover, in lakes where IWM is established but does not dominate macrophyte assemblages, the effects on littoral zone productivity may be minimal. Instead, overall macrophyte biomass is the primary factor controlling the rates of production and biomass of the other littoral zone primary producers, as has long been understood and observed in lake ecosystems.

Species Diversity of Littoral Zone Fishes Along a Phosphorus–Production Gradient in Lake Memphremagog, Quebec–Vermont

1977 ◽  
Vol 34 (1) ◽  
pp. 167-170 ◽  
Author(s):  
Brian S. Nakashima ◽  
Dominique Gascon ◽  
William C. Leggett
Keyword(s):  
Species Diversity ◽  
Primary Production ◽  
Littoral Zone ◽  
Fish Communities ◽  
Fish Biomass ◽  
The North ◽  
Northern Areas ◽  
Phosphorus Production ◽  
South Axis

The species diversity of littoral zone fish communities in four areas of Lake Memphremagog was positively related to known phosphorus and primary production gradients along the north–south axis of the lake and to the associated north–south differences in macrobenthic and fish biomass. The highest diversity values were found consistently in the highly productive southern areas of the lake and the lowest values in the least productive northern areas.

scholarly journals Taxonomy and distribution of diatoms on the Turkish Mediterranean Coast, Dalyan (Muğla)

2020 ◽  
Vol 21 (1) ◽  
pp. 201 ◽  
Author(s):  
MUHAMMET AYDIN KALELI ◽  
JOHN PATRICK KOCIOLEK ◽  
CÜNEYT NADIR SOLAK
Keyword(s):  
Primary Production ◽  
Geographic Distribution ◽  
Littoral Zone ◽  
Aegean Sea ◽  
Coastal Ecosystems ◽  
Mediterranean Coast ◽  
Littoral Zones ◽  
O2 Production ◽  
Littoral Diatoms

Diatoms are one of the components in the littoral zone and the most productive in terms of O2 production and primary production. Despite their importance in these coastal ecosystems, the diatoms of littoral zones of Turkish coastlines have been understudied.  In this report, we document the littoral diatoms from Dalyan Iztuzu Beach at the southeast coasts of Aegean Sea. Samples were collected from 6 stations in Dalyan Beach between 2012 and 2016. We report here on the occurrence of 9 genera including, Catenula Mereschkowsky, Cymatosira Grunow, Dimeregramma Ralfs, Diplomenora Blazé, Eunotogramma Weisse, Meloneis Louvrou, Danielidis & Economou-Amilli, Neohuttonia Kuntze, Plagiogramma Greville and Tetramphora Mereschkowsky, as well as 40 taxa as newly-recorded from Turkey. The newly-recorded diatoms are characterized in terms of their morphology and illustrated with light micrographs. For each species, their habitat and geographic distribution along the coasts are discussed.

PRESENT AND FUTURE PROSPECTS FOR FORESTRY IN THE CENTRAL PUMICE REGION

1971 ◽  
pp. 14-17
Author(s):  
J. Ure
Keyword(s):  
New Zealand ◽  
Primary Production ◽  
Future Prospects ◽  
Export Markets ◽  
Local Conditions

The region contains half the area of exotic forest in New Zealand and the major industries dependent thereon. Both are expanding rapidly to meet promising export markets. Local conditions are particularly favourable for this form of primary production and continued expansion is expected.

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.

Primary Production of Phytoepiphyton in Water Bodies of Kiev

2008 ◽  
Vol 44 (4) ◽  
pp. 35-41 ◽  
Author(s):  
O. A. Sosnovskaya ◽  
P. D. Klochenko ◽  
G. V. Kharchenko
Keyword(s):  
Primary Production ◽  
Water Bodies
Sign in / Sign up

Export Citation Format

Share Document