Supply chain management pdf thesis proposal - Enumeration.
Well-known examples of such “primary” larvae include the trochophora-type larvae in annelids, molluscs, and some other phyla, or the dipleurula-type larvae in echinoderms and hemichordates; the crustacean nauplius stage serves a similar purpose and is sometimes compared with trochophora, but its degree of organization is much higher.In this article we will discuss about the nauplius, zoea and megalopa larva of crustaceans with the help of suitable diagrams. Nauplius Larva of Crustaceans: Fig. 147 NAUPLIUS LARVA W.M. 1. It is the slide of Nauplius larva, which is the earliest free swimming stage in the development of crustaceans.They catch and eat small organisms in the water so they grow and slough their shell six times before transforming into cypris larvae. Many larvae are eaten by other creatures that eat suspended particles. Classification: Cirripedia nauplius larvae are crustaceans under the arthropod group.
NAUPLIUS LARVA Discovered by Muller in 18 th century, the Nauplius larva is the first fundamental stage in all crustaceans that sometimes hatches from the egg and sometimes passes inside the egg. Body is oval in shape and unsegmented with a large cephalothorax and rudimentary abdomen.The nauplius larva is not only the prevailing hatching larval form of crustaceans, but its morphological organization is a fundamental part of the definition of the Crustacea (Waloszek 1993). However, the hypothesis that nauplii demarcate a plesiomorphic mode among Crustacea has become a controversial issue in recent years (Scholtz 2000).
Larval forms of all phyla together. You can get almost all larval forms as a list in a pdf file. It will be helpful to Students and Teachers also.
