Do Staurozoa bloom? A review of stauromedusan population biology

The study of "jellyfish blooms" provides important data toward determining the causes and consequences of these phenomena; however, the definition of "bloom" remains controversial and different concepts have been adopted in recent works. By addressing the biological and convenience definitions, this study tested the adequacy of the different concepts of "blooms" for the Class Staurozoa (Cnidaria). From seasonal monitoring data of some species of Staurozoa, we concluded that stauromedusae bloom if we used the biological concept of "bloom", which considers the life cycle and resulting changes in the abundances of these animals. By contrast, the small, benthic, inconspicuous, and non-harmful stauromedusae do not bloom if we use the convenience concept of "bloom", which constrains the events to those that humans can observe and that cause damage to human activities. In other words, the same group of organisms either is or is not capable of blooming depending on which concept of "bloom" is used. In fact, previous literature has suggested that Staurozoa could not bloom, which indicates that the study of "jellyfish blooms" can be biased, considering convenience rather than biological reasoning.

Subjetividade construída: uma leitura sobre os trabalhos de Barbara Bloom

Esse artigo utiliza como referência a noção de “total design” desenvolvida por Hall Foster em 2002 e, através dela, busca se aproximar de dois trabalhos desenvolvidos pela artista Barbara Bloom (1951, Califórnia- EUA): The Reign of Narcissism (1989) e Mood Ring Home (2002). Consideramos o corpo de obras de Barbara Bloom como uma importante contribuição para o debate sobre papel que o design (em seu sentido ampliado) assume perante os mecanismos de produção e disseminação de formas culturais e de novas subjetividades no mundo contemporâneo.