Toxicity of metals to a freshwater tubificid worm,Tubifex tubifex (Muller)

1991 ◽  
Vol 46 (6) ◽  
pp. 906-912 ◽  
Author(s):  
B. S. Khangarot
Keyword(s):  
Tubifex Tubifex ◽  
Tubificid Worm

scholarly journals Development of a culture techniques for Tubificid worm, under laboratory conditions

2015 ◽  
Vol 42 (1) ◽  
pp. 117-122 ◽  
Author(s):  
M Begum ◽  
P Noor ◽  
KN Ahmed ◽  
N Sultana ◽  
MR Hasan ◽  
...  
Keyword(s):  
Culture Medium ◽  
Culture Media ◽  
Maximum Growth ◽  
Culture Technique ◽  
Tubifex Tubifex ◽  
Cow Dung ◽  
Culture Techniques ◽  
Moderate Growth ◽  
Tubificid Worm ◽  
New Generation

Study has been conducted to establish a suitable culture technique for Tubificid worm, Tubifex tubifex using different culture media. Cowdung, Rawfish and vegetables were evaluated as culture medium. Each medium was supplied as supplementary food at the rate of 250 mg/cm2 per week for 145 days. Water temperature, pH and ammonia of the rearing media ranged from 27.1-31.670C, 5.76-7.35 and 0.5 - <2.5 mg/l respectively. Among the three media, the worms grew well in size in the cowdung medium whereas rawfish showed a moderate growth of worms with remarkable number of new generation of worms. There was no significant growth of worms in the vegetables. The collection of Tubifex was quite difficult but highest amount was in cow dung (8.192 mg/g), moderate in rawfish medium (4.14 mg/g) and lowest in the vegetables (2.43 mg/g). Cowdung medium showed the maximum growth in this study period which is more viable, easy and economical.Bangladesh J. Zool. 42(1): 117-122, 2014

Neuron-glia relationship during the early postembryonic development of the nervous system in some oligochaetes

1978 ◽  
Vol 36 (2) ◽  
pp. 600-601
Author(s):  
Wiktor Djaczenko ◽  
Carmen Calenda Cimmino
Keyword(s):  
Nervous System ◽  
Glial Cells ◽  
Early Period ◽  
Postembryonic Development ◽  
Ruthenium Red ◽  
The Body ◽  
Tubifex Tubifex ◽  
Growth Stages ◽  
Cell Processes ◽  
Cytoplasmic Processes

The simplicity of the developing nervous system of oligochaetes makes of it an excellent model for the study of the relationships between glia and neurons. In the present communication we describe the relationships between glia and neurons in the early periods of post-embryonic development in some species of oligochaetes.Tubifex tubifex (Mull. ) and Octolasium complanatum (Dugès) specimens starting from 0. 3 mm of body length were collected from laboratory cultures divided into three groups each group fixed separately by one of the following methods: (a) 4% glutaraldehyde and 1% acrolein fixation followed by osmium tetroxide, (b) TAPO technique, (c) ruthenium red method.Our observations concern the early period of the postembryonic development of the nervous system in oligochaetes. During this period neurons occupy fixed positions in the body the only observable change being the increase in volume of their perikaryons. Perikaryons of glial cells were located at some distance from neurons. Long cytoplasmic processes of glial cells tended to approach the neurons. The superimposed contours of glial cell processes designed from electron micrographs, taken at the same magnification, typical for five successive growth stages of the nervous system of Octolasium complanatum are shown in Fig. 1. Neuron is designed symbolically to facilitate the understanding of the kinetics of the growth process.

Effects of chitosan on oxidative stress and metallothioneins in aquatic worm Tubifex tubifex (Oligochaeta, Tubificidae)

Chemosphere ◽  
2007 ◽  
Vol 67 (1) ◽  
pp. 167-175 ◽  
Author(s):  
Yahia Y. Mosleh ◽  
Séverine Paris-Palacios ◽  
Mohamed T. Ahmed ◽  
F.M. Mahmoud ◽  
M.A. Osman ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Tubifex Tubifex

scholarly journals Prevalence and susceptibility of infection to Myxobolus cerebralis, and genetic differences among populations of Tubifex tubifex

2002 ◽  
Vol 51 ◽  
pp. 113-121 ◽  
Author(s):  
KA Beauchamp ◽  
M Gay ◽  
GO Kelley ◽  
M El-Matbouli ◽  
RD Kathman ◽  
...  
Keyword(s):  
Genetic Differences ◽  
Tubifex Tubifex ◽  
Myxobolus Cerebralis

Enhancement of the performance of constructed wetlands for wastewater treatment in winter: the effect of Tubifex tubifex

RSC Advances ◽  
2016 ◽  
Vol 6 (41) ◽  
pp. 34841-34848 ◽  
Author(s):  
Yan Kang ◽  
Jian Zhang ◽  
Huijun Xie ◽  
Zizhang Guo ◽  
Pengfei Li ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Constructed Wetlands ◽  
Constructed Wetland ◽  
Water Purification ◽  
Tubifex Tubifex ◽  
Batch Systems ◽  
Potential Use

An improved constructed wetland (CW) with the addition ofTubifex tubifexin winter was studied in laboratory batch systems. The outcomes of this study indicate that the potential use ofTubifex tubifexcould improve the ecosystem and water purification by CWs in winter.

scholarly journals Checklist of Aquatic Oligochaetes Species in Tigris–Euphrates River basin

2014 ◽  
Vol 11 (3) ◽  
pp. 1397-1404 ◽  
Author(s):  
Baghdad Science Journal
Keyword(s):  
Single Species ◽  
Abundant Species ◽  
Tubifex Tubifex ◽  
Euphrates River ◽  
Tigris River ◽  
Limnodrilus Hoffmeisteri ◽  
Frequent Species ◽  
Aquatic Oligochaetes ◽  
Stylaria Lacustris ◽  
Tubificid Worms

A total of 60 species of aquatic oligochaetes were identified in different sites within Tigris-Euphrates basin / Iraq, including River Tigris, River Euphrates, Southern marshes ( Al-Haweiza , Al-Hammar and Al-Chebaiesh ) , Shutt Al-Germa, and Shatt Al-Arab. In River Euphrates 39 species were identified, 40 species from River Tigris and 32 species from Shatt-Al-Arab and southern marshes.The identified species were classified as four species of Family Aeolosomatidae, 54 species of Naididae ( 31 Naidinae , 8 Pristininae and 15 Tubificid worms), one species of each of Lumbriculidae ( Lumbriculus variegates ) and Lumbricidae ( Eiseiella tetraedra). Among Aeolosomatidae , Aelosoma aquaternarium, A. Liedyi, A. variegatum and A. hemprichi, in which, A. variegatum was the most frequent species, found in Euphrates river. Naidinae community were represented by five species of genus Chaetogaster, two species of each of Paranais, Slavina, & Stylaria, four species of Allonais , and seven species of each of Dero and Nais, in addition to Stephensoniana trivandrana, Specaria josinae and Ophidonais serpentina. Nais variabilis was the most abundant and frequent species in River Tigris while Stylaria lacustris & Ophidonais serpentina are abundant in River Euphrates . Species of Pristininae were representative by four species of genus Pristina and three species of genus pristinella, among them Priatina longiseta is the most abundant species.Tubificid worms, Branchuira sowerbyi and Limnodrilus hoffmeisteri were the most frequent and abundant species in the surface sediments of Iraqi waters. Beside L. hoffmeisteri , other five species of Limnodrilus, two species of Potomothrix, and a single species of Tubifex tubifex , Embolocephalus velutinus, Aulodrilus piguetia, Psammoryctides moravicus and Rhyacodrilus coccineus were recorded.

Population analysis in mass cultures of Tubifex tubifex

1989 ◽  
pp. 127-134
Author(s):  
Carla Bonacina ◽  
Giuliano Bonomi ◽  
Carlo Monti
Keyword(s):  
Population Analysis ◽  
Tubifex Tubifex ◽  
Mass Cultures
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