Three Harpellales That Live in One Species of Aquatic Chironomid Larva

Mycologia ◽  
1999 ◽  
Vol 91 (2) ◽  
pp. 396 ◽  
Author(s):  
Robert W. Lichtwardt ◽  
Marvin C. Williams
Keyword(s):  
Chironomid Larva

Three Harpellales that live in one species of aquatic chironomid larva

Mycologia ◽  
1999 ◽  
Vol 91 (2) ◽  
pp. 396-399 ◽  
Author(s):  
Robert W. Lichtwardt ◽  
Marvin C. Williams
Keyword(s):  
Chironomid Larva

Osmoregulation and respiration in a marine chironomid larva, Paraclunio alaskensis Coquillett (Diptera, Chironomidae)

1983 ◽  
Vol 61 (9) ◽  
pp. 1937-1943 ◽  
Author(s):  
Anne Parkinson ◽  
Richard A. Ring
Keyword(s):  
Water Content ◽  
Respiration Rate ◽  
Dry Weight ◽  
Basal Respiration ◽  
Intertidal Habitat ◽  
Chironomid Larva ◽  
Wide Range

The hemolymph of larvae acclimated in freshwater (19 mosmol/L) and seawater (897 mosmol/L) was analyzed and levels of Na+ (191 mM, 247 mM), Mg2+ (8 mM, 14 mM), Cl− (60 mequiv./L, 126 mequiv./L), and osmolarity (417 mosmol/L, 530 mosmol/L) were determined. Paraclunio alaskensis larvae were shown to be both euryhaline and hyperosmotic and hyposmotic regulators. The isotonic point of the hemolymph was 475 mosmol. Whole larvae contained 72% water and actively regulated water content (signified by changes in weight) over a wide range of external media. The basal respiration rate of larvae in seawater (0.032 μg O2∙mg dry weight−1∙h−1) indicated active cuticular respiration. The significance of these findings in relation to the intertidal habitat is discussed.

scholarly journals Telmatogeton Schiner, 1866 (Chironomidae: Diptera), a newly recorded genus of chironomid larva for the Egyptian Mediterranean Fauna

2019 ◽  
Vol 88 (3) ◽  
pp. 285-300
Author(s):  
Khaled Mahmoud Abdelsalam
Keyword(s):  
Geographical Distribution ◽  
Green Algae ◽  
Mediterranean Coast ◽  
Chironomid Larva ◽  
Filamentous Green Algae ◽  
The Mediterranean ◽  
Fouling Organisms ◽  
First Time ◽  
The City

Abstract Sampling of fouling organisms carried out during January 2019 at Al-Max (west of the city of Alexandria) on the Mediterranean coast of Egypt revealed the presence of larval populations belonging to the genus Telmatogeton (Chironomidae), which is reported for the first time from the Mediterranean coast of Egypt. The larvae were found among clumps of fine filamentous green algae (Enteromorpha compressa). A description of the larva with taxonomic remarks and comments on its ecology and geographical distribution are given.

LARGE “ANAL GILL” CHROMOSOMES Of a Chironomid Larva

1950 ◽  
Vol 41 (6) ◽  
pp. 155-164 ◽  
Author(s):  
MIRIAM PENNYPACKER
Keyword(s):  
Chironomid Larva

Production and Enrichment of Chironomid Larva with Different Levels of Vitamin C and Effects on Performance of Persian Sturgeon Larvae

2014 ◽  
Vol 76 (3) ◽  
pp. 289-295 ◽  
Author(s):  
Ali Hamidoghli ◽  
Bahram Falahatkar ◽  
Majidreza Khoshkholgh ◽  
Ahad Sahragard
Keyword(s):  
Vitamin C ◽  
Persian Sturgeon ◽  
Chironomid Larva ◽  
Different Levels

Enteromorpha intestinalis—a refuge for the supralittoral rockpool harpacticoid copepod Tigriopus brevicornis

1999 ◽  
Vol 79 (6) ◽  
pp. 1125-1126 ◽  
Author(s):  
Rob McAllen
Keyword(s):  
Oxygen Concentration ◽  
Animal Species ◽  
Harpacticoid Copepod ◽  
Extreme Environment ◽  
Population Estimates ◽  
Enteromorpha Intestinalis ◽  
Chironomid Larva ◽  
Seaweed Species ◽  
Dry Out

Supralittoral rockpools form an extreme environment due to severe fluctuations in salinity, temperature and oxygen concentration. The only seaweed species in supralittoral rockpools around Great Cumbrae, Firth of Clyde was the green alga Enteromorpha intestinalis. Only two animal species were recorded permanently over a three year period in this environment; the orange harpacticoid copepod, Tigriopus brevicornis, and the chironomid larva, Halocladius fucicola. The present study demonstrates the role of the hollow thallus of E. intestinalis in the lifestyles of T. brevicornis (adults and nauplii) and H. fucicola. The thallus provides a moist refuge reducing desiccation when the rockpools completely dry out. Several hundred individuals of T. brevicornis have been observed in a single E. intestinalis thallus. This observation may explain how the species can successfully recolonize completely evaporated supralittoral rockpools after several weeks. The study also raises questions about the reliability of previous population estimates of Tigriopus spp. in light of this constantly overlooked refuge.

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