Abstract This study aimed to determine the type, intensity, degree of ectoparasite infestation and its correlation total V. parahaemolyticus bacteria in super-intensive pacific white shrimp culture. In this study, sampling was carried out 3 pond areas spread East Java, namely Bangil, Tuban, Lamongan with 50 shrimps (PL30-PL 40). The obtained data underwent regression analysis. Based on results,...

Microscopic sessile suspension feeders are a critical component in aquatic ecosystems, acting as an intermediate trophic stage between bacteria and higher eukaryotic taxa. Because they live attached to boundaries, it has long been thought that recirculation of the feeding currents produced by sessile suspension feeders inhibits their ability to access fresh fluid. However, previous models for t...

During a parasitological investigation on the fresh water fishes of North West of Iran (West Azerbaijan Province), 266 specimens of 11 fishes were examined. Fishes were collected from seven stations from Aras, Zangbar and Sarysou Rivers between summer 2001 to summer 2002. Nine protozoan species were detected; eight Cilliophora and one Rhizopoda. Cilliophora are: Chilodonella sp., Apiosoma sp.,V...

During a parasitological investigation on the fresh water fishes of North West of Iran (West Azerbaijan Province), 266 specimens of 11 fishes were examined. Fishes were collected from seven stations from Aras, Zangbar and Sarysou Rivers between summer 2001 to summer 2002. Nine protozoan species were detected; eight Cilliophora and one Rhizopoda. Cilliophora are: Chilodonella sp < em>., Apiosoma...

Vorticella convallaria is one of the fastest and most powerful cellular machines. The cell body is attached to a substrate by a slender stalk containing a polymeric structure-the spasmoneme. Helical coiling of the stalk results from rapid contraction of the spasmoneme, an event mediated by calcium binding to a negatively charged polymeric backbone. We use high speed imaging to measure the contr...

Vorticella are ciliated protozoa that live in water, sometimes free, and sometimes attached by a long contractile peduncle (or stalk) to floating plant material. Early light microscope studies of the animal revealed the existence of longitudinal and circular myoid fibrils linked with the contractile axis of the stalk. Observers reported (1, 15) that this system has the dual capacity of dosing t...

Vannamei shrimp (Litopenaeus vannamei) is a type of that often cultivated. This study aims to identify ectoparasites and their prevalence in vannamei the village Pantai Gading, Kec. Secanggang Kab. Langkat. research method survey method, where observed ponds are 3 ponds, samples taken as much 5% stocking density biota. Samples were randomly then examined at Laboratory Faculty Agriculture, Unive...