Читать книгу Surgery of Exotic Animals - Группа авторов - Страница 97

This interesting and diverse group of about 7000 species includes the sea stars, brittle stars, sea cucumbers, sea urchins, sea biscuits, and crinoids. All are marine, and many are commonly displayed in aquaria and used in research. Humans do not consume most species, but the gonads of sea urchins are a popular food item in some sushi restaurants. This is the first group of invertebrates classified as deuterostomes (embryonically the anus is formed by the blastopore). In all of the previous taxa of this chapter, the blastopore forms the mouth. All chordates, including vertebrates, are deuterostomes (Ruppert et al. 2004). Some species have regenerative capabilities and generally heal well and quickly. Published surgical techniques focus on studies in regeneration and reviews of echinoderm regeneration adequately summarize the topic (Candia Carnevali and Bonasoro 2001; Candia Carnevali 2006). Candia Carnevali and Bonasoro (2001) introduce an entire journal issue (Microscopy Research and Technique) dedicated to the topic. Crinoids (feather stars) are particularly adept at regenerating arms and, in some cases, nearly the entire body (Candia Carnevali et al. 1996, 1998). Some sand dollars, sea cucumbers, and sea urchins are even able to clone themselves (Eaves and Palmer 2003).