An Effect of Parasitism on Balanus balanus (L.) da Costa
نویسندگان
چکیده
منابع مشابه
The identification and role of a novel eicosanoid in the reproductive behaviour of barnacles (Balanus balanus).
Post-copulatory behaviour in barnacles involves a violent rocking movement of the opercular valves, which is thought to contribute to the expulsion of oocytes through the oviduct into the mantle cavity where they are fertilised. We demonstrate in this study that the seminal vesicles/testis of the subtidal barnacle Balanus balanus produce a biologically active factor, barnacle muscle stimulatory...
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We determined the assimilation efficiencies (AEs) and efflux rate constants of Cd, Cr, and Se in barnacles Balanus amphitrite feeding on &verse planktonic prey. The measured AEs of Cd, Cr. and Se for zooplankton prey (brine shrimp Artemia salina larvae and copepods Canthocalanuspauper and Temora turbinata) were 53 to 88, 32 to 59, and 63 to 76%, respectively, and for diatom diets were 35 to 86,...
متن کاملSpectral Sensitivity of the Barnacle, Balanus amphitrite
The extracellular ocellar potential was used to evaluate the spectral sensitivity of the ocellus of the barnacle, Balanus amphitrite. Maximum relative sensitivity was at 530-540 nm. Studies with chromatic adapting lights suggest that the receptors contain a single photopigment. The spectra were relatively broader in the dark as compared to the light-adapted state. This effect was shown to be du...
متن کاملMetamorphosis in the Cirripede Crustacean Balanus amphitrite
Stalked and acorn barnacles (Cirripedia Thoracica) have a complex life cycle that includes a free-swimming nauplius larva, a cypris larva and a permanently attached sessile juvenile and adult barnacle. The barnacle cyprid is among the most highly specialized of marine invertebrate larvae and its settlement biology has been intensively studied. By contrast, surprisingly few papers have dealt wit...
متن کاملBase plate mechanics of the barnacle Balanus amphitrite (=Amphibalanus amphitrite).
The mechanical properties of barnacle base plates were measured using a punch test apparatus, with the purpose of examining the effect that the base plate flexural rigidity may have on adhesion mechanics. Base plate compliance was measured for 43 Balanus amphitrite (=Amphibalanus amphitrite) barnacles. Compliance measurements were used to determine flexural rigidity (assuming a fixed-edge circu...
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ژورنال
عنوان ژورنال: Nature
سال: 1953
ISSN: 0028-0836,1476-4687
DOI: 10.1038/172128b0