Combined Impacts of Algal Density and Copepod Predation on the Community of Small-Sized Zooplankton

2017 ◽  
Vol 53 (4) ◽  
pp. 119-128
Author(s):  
TAKAMARU NAGATA ◽  
TAKAYUKI HANAZATO
Keyword(s):  
Algal Density ◽  
Copepod Predation

Rising pCO2 interacts with algal density to reversely alter physiological responses of Gracilaria lemaneiformis and Ulva conglobata

2021 ◽  
Vol 54 ◽  
pp. 102231
Author(s):  
Gang Li ◽  
Guangming Mai ◽  
Jiejun Zhang ◽  
Guangyan Ni ◽  
Xiaohan Shi ◽  
...  
Keyword(s):  
Physiological Responses ◽  
Gracilaria Lemaneiformis ◽  
Algal Density

scholarly journals Removal of Inorganic Nutrient and Organic Carbon from Wastewater of Binh Dien Market Using Green Alga Chlorella sp

2016 ◽  
Vol 62 (4) ◽  
pp. 27-31
Author(s):  
Bui Manh Ha ◽  
Duong Thi Giang Huong ◽  
Luong Thi Hong Xuyen
Keyword(s):  
Organic Carbon ◽  
Oxygen Demand ◽  
Inorganic Nutrients ◽  
Potential Candidate ◽  
Algal Density ◽  
Wastewater Treatment Process ◽  
Traditional Markets ◽  
Chlorella Sp ◽  
Green Algal ◽  
Fresh Food

Abstract Traditional markets play a major role in socio-economics and constitutes a significant aspect of Vietnamese culture. However, wastewater streams discharged from the markets are generally characterized by a lot of inorganic nutrients and organic substances originated from fresh food processing units. They could lead to serious water contamination if discharged without proper treatment. This study applied microalgae Chlorella sp. for eliminating inorganic nutrients (NO3−-N, NH4+-N and PO43−-P) and organic carbon (Chemical oxygen demand-COD) from wastewater of the Binh Dien market. The removal efficiencies reached for NH4+-N > 86%, for NO3−-N > 72%, and for PO43−-P > 69%, respectively, at algal density of 49 × 104 cell mL−1, and for COD > 96% at algal density of 35 × 104 cell mL−1 after five cultivating days. The effluence satisfied the Vietnamese standard, column B, of the National technical regulation on industrial wastewater (QCVN 40:2011/BTNMT). The results demonstrated that the culture system composed of green algal Chlorella sp. could be a potential candidate for the removal of nutrients and organic carbon by a wastewater treatment process from the Binh Dien market.

Algal density dependent bioconcentration factors of hydrophobic chemicals

Chemosphere ◽  
1995 ◽  
Vol 31 (9) ◽  
pp. 4001-4012 ◽  
Author(s):  
Dick T.H.M. Sijm ◽  
Joost Middelkoop ◽  
Keno Vrisekoop
Keyword(s):  
Algal Density ◽  
Bioconcentration Factors ◽  
Density Dependent

Morphological defenses of Daphnia against copepod predation on eggs msaccc:1994-10-02

1995 ◽  
Vol 133 (1) ◽  
pp. 49-59
Author(s):  
Takayuki Hanazato ◽  
Stanley I. Dodson
Keyword(s):  
Copepod Predation ◽  
Morphological Defenses

scholarly journals Effects of algal density and current on ion transport through periphyton communities

1993 ◽  
Vol 38 (6) ◽  
pp. 1276-1281 ◽  
Author(s):  
R. Jan Stevenson ◽  
R. Glover
Keyword(s):  
Ion Transport ◽  
Algal Density

A comparison of pre-industrial and present-day changes in Bosmina and Daphnia size structure from soft-water Ontario lakes

2010 ◽  
Vol 67 (4) ◽  
pp. 754-762 ◽  
Author(s):  
Jennifer B. Korosi ◽  
Andrew M. Paterson ◽  
Anna M. DeSellas ◽  
John P. Smol
Keyword(s):  
Body Size ◽  
Size Structure ◽  
South Central ◽  
Zooplankton Size ◽  
Copepod Predation ◽  
Post Impact ◽  
North Temperate Lakes ◽  
Impact Data ◽  
Shield Lakes

Understanding the long-term controls on cladoceran size structure has important implications for aquatic ecosystems. Although there has been considerable interest in zooplankton size trends for Canadian Shield lakes, data are not available for zooplankton size structure prior to the period of anthropogenic disturbances. Here, we present pre- and post-impact size data for the common pelagic cladocerans Bosmina and Daphnia for 44 well-studied Shield lakes in south-central Ontario (Canada). We show that Daphnia were larger and that the length of Bosmina body appendages (mucrones and antennules) was longer in pre-industrial times than they are today. The reduction in Bosmina appendage length we observed may suggest a reduction in copepod predation pressure since pre-industrial times. Reduced maximum body size in Daphnia is a predicted response to a warming climate in north temperate lakes; however, we suggest that alternate explanations, specifically acidification and subsequent recovery following emission reductions, should also be explored as the primary drivers of Daphnia size changes in this lake set. Overall, our results highlight the importance of pre-impact data for understanding the long-term controls on cladoceran body size from pre-1850 to present.

Vulnerability of carp larvae to copepod predation as a function of larval age and body length

Aquaculture ◽  
2012 ◽  
Vol 338-341 ◽  
pp. 274-283 ◽  
Author(s):  
Ram Kumar ◽  
Sami Souissi ◽  
Jiang-Shiou Hwang
Keyword(s):  
Body Length ◽  
Copepod Predation

scholarly journals Competitive outcome between the rotiferBrachionus calyciflorusand the cladoceranMoina macrocopadepends on algal density but not temperature

2014 ◽  
Vol 50 (2) ◽  
pp. 109-119 ◽  
Author(s):  
Lin Huang ◽  
Yilong Xi ◽  
Xueling Wang ◽  
Mengning Xia ◽  
Ying Han ◽  
...  
Keyword(s):  
Algal Density ◽  
Competitive Outcome

Effects of stocking density, algal density, and temperature on growth and survival of larvae of the basket cockle, Clinocardium nuttallii

Aquaculture ◽  
2010 ◽  
Vol 299 (1-4) ◽  
pp. 99-105 ◽  
Author(s):  
W. Liu ◽  
H. Gurney-Smith ◽  
A. Beerens ◽  
C.M. Pearce
Keyword(s):  
Stocking Density ◽  
Algal Density ◽  
Growth And Survival

scholarly journals Influence of light quality on Chlorella growth, photosynthetic pigments and high-valued products accumulation in coastal saline-alkali leachate

2021 ◽  
Author(s):  
Xiao-ya Liu ◽  
Yu Hong ◽  
Wen-ping Gu
Keyword(s):  
Blue Light ◽  
Photosynthetic Pigments ◽  
Lipid Content ◽  
Light Quality ◽  
Specific Growth ◽  
Starch Content ◽  
Red Light ◽  
Monochromatic Light ◽  
Algal Density ◽  
Chlorella Sp

Abstract Using saline-alkali leachate to cultivate microalgae is an effective way to realize the utilization of wastewater and alleviate the shortage of water resources. Light source is usually used as an optimized parameter to further improve the cultivation efficiency of microalgae. In this work, the influence of light qualities on the growth and high-valued substances accumulation of Chlorella sp. HQ in coastal saline-alkali leachate were investigated. The specific growth rate of Chlorella in coastal saline-alkali leachate was 0.27–0.60 d−1. At the end of cultivation, the algal density under blue light reached 8.71 ± 0.15 × 107 cells·mL−1, which was significantly higher than the other light groups. The lipid content in the biomass was 29.31–62.95%, and the highest lipid content and TAGs content were obtained under red light and blue-white mixed light, respectively. Percentages of total chlorophylls (0.81–1.70%) and carotenoids (0.08–0.25%) were obtained in the final biomass of the coastal saline-alkali leachate. In addition, the contents of photosynthetic pigments and three high-valued products under mixed light were higher than those of monochromatic light, and the protein, total sugar and starch content under blue-red mixed light was 1.52–3.76 times, 1.54–3.68 times and 1.06–3.35 times of monochromatic blue light and red light, respectively.

Sign in / Sign up

Export Citation Format

Share Document