scholarly journals An Preliminary Survey of Earthworm Species Composition and Distribution in Thenorth Karnataka Region, Gulbarga, Karnataka

2014 ◽  
Vol 27 ◽  
pp. 54-60 ◽  
Author(s):  
Sharanappa Padashetty ◽  
Murali Jadesh
Keyword(s):  
Species Composition ◽  
Eisenia Fetida ◽  
Preliminary Survey ◽  
Eudrilus Eugeniae ◽  
Earthworm Species ◽  
Karnataka State ◽  
External Sources ◽  
Perionyx Sansibaricus ◽  
Species Composition And Distribution

A preliminary survey on earthworm species from north Karnataka region, Gulbarga district, Karnataka state, India, has been conducted from January 2012 to December 2013. Survey was conducted in three regions of Gulbarga district i.e. Afzalpur, Chittapur, and Sedam taluk. Six species of earthworms were identified belonging to four families namely lumbricidae, Octochaetidae, Megascolecidae and Eudrilidae. Eisenia fetida belonging to family lumbricidae, Dichogaster bolaui belong to family Octochaetidae, Polypheretima elongate, Perionyx sansibaricus and Perionyx excavates belong to family Megascolecidae and Eudrilus eugeniae belonging to family Eudrilidae. Among the species, Eudrilus eugeniae does not occur naturally and are produced from external sources for vermicomposting units.

scholarly journals Die subletale effekte van die organochloriede dieldrien en lindaan op groei en voortplanting van Eudrilus eugeniae en Eisenia fetida (Oligochaeta)

1994 ◽  
Vol 13 (1) ◽  
pp. 21-24 ◽  
Author(s):  
Editorial Office
Keyword(s):  
Environmental Quality ◽  
Eisenia Fetida ◽  
Reproductive Activity ◽  
Eudrilus Eugeniae ◽  
Sperm Ultrastructure ◽  
Experimental Exposure ◽  
Pesticide Concentration ◽  
Earthworm Species ◽  
Sublethal Concentrations

Experimental exposure of the earthworm species Eudrilus eugeniae to organochlorines showed that dieldrin causes damage to sperm ultrastructure when viewed electronmicroscopically. Worms containing concentrations of 7,27 mg/kg dieldrin and higher showed more than 10% sperm damage. Exposure of Eisenia fetida to sublethal concentrations of lindane did not result in sperm damage but demonstrated an increase in growth and reproductive activity. It is argued that quantification of sperm damage and correlation with pesticide concentration could provide a useful tool for evaluating environmental quality. Furthermore, the effects of sublethal concentrations of pesticides that manifest themselves in increased growth and reproductive activity could affect ecological balances.

scholarly journals Nutrient Status of Vermicompost of Urban Green Waste Processed by Three Earthworm Species—Eisenia fetida, Eudrilus eugeniae,andPerionyx excavatus

2010 ◽  
Vol 2010 ◽  
pp. 1-13 ◽  
Author(s):  
Swati Pattnaik ◽  
M. Vikram Reddy
Keyword(s):  
Eisenia Fetida ◽  
Nutrient Status ◽  
Physical Parameters ◽  
Eudrilus Eugeniae ◽  
Perionyx Excavatus ◽  
Nutrient Contents ◽  
Urban Green ◽  
Green Waste ◽  
Earthworm Species ◽  
Vegetable Market Waste

Major nutrient status of vermicompost of vegetable market waste (MW) and floral waste (FW) processed by three species of earthworms namely,Eudrilus eugeniae, Eisenia fetida, andPerionyx excavatusand its simple compost were assessed across different periods in relation to their respective initiative substrates. Their physical parameters—temperature, moisture, pH, and electrical conductivity—were also recorded. The nutrients—nitrogen, phosphorus, potassium, calcium, and magnesium—increased in the vermicompost and compost while the organic carbon, C/N and C/P ratios decreased as the composting process progressed from 0 to 15, 30, 45, and 60 days. The nutrient statuses of vermicomposts of all earthworm species produced from both the wastes were more than that of the compost and that of their respective substrates. Moreover, the vermicompost produced byE. eugeniaepossessed higher nutrient contents than that ofE. fetida, P. excavatus, and compost. The MW showed higher nutrient contents than the FW. Thus, vermicomposting is the paramount approach of nutrient recovery of urban green waste.

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.

Changes in the species composition and distribution of butterflies (Rhopalocera) in Cracow (Poland) since the mid-19th century

2005 ◽  
Vol 48 (2) ◽  
pp. 181-215 ◽  
Author(s):  
Edward Palik ◽  
Łukasz Przybyłowicz ◽  
Andrzej Kosior ◽  
Wiesław Król ◽  
Wojciech Solarz ◽  
...  
Keyword(s):  
Species Composition ◽  
19Th Century ◽  
Species Composition And Distribution
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