Veliger - Wikipedia
Free-living veliger larvae typically feed on phytoplankton; however, the larvae of some species are lecithotrophic (nourished by yolk from the egg that is retained within their bodies) and do not need to feed. In at least some cases, lecithotrophic veligers can also feed on phytoplankton.
Veliger | Embryonic, Shell Formation & Metamorphosis | Britannica
veliger, larva typical of certain mollusks such as marine snails and bivalves and a few freshwater bivalves. The veliger develops from the trochophore (q.v.) larva and has large, ciliated lobes (velum). The velum forms from the ciliary ring (prototroch), a …
Gastropod Life Cycles: Veliger Larva & Beyond | Earth Life
2020年11月11日 · At this stage, the young animal is called a “veliger larva”. Planktonic veliger larva feed on micro-plankton (diatoms, pelagic eggs and smaller aquatic larva of other species). These food items are collected and directed to the animal’s mouth by the action of the cilia, now arranged along the vela. Veliger larva can take from a few days ...
Veliger - Definition, Life Cycle, Structure, Characteristics ... - Vedantu
Veliger is the second stage of a larva of certain mollusks such as marine snails and bivalves and a few freshwater bivalves. The veliger is developed from the trochophore larva, which has large ciliated lobes called velum.
Chapter 3 Embryogenesis and organogenesis of veligers and …
2001年1月1日 · The veliger, arising from the ubiquitous trochophore larva, probably emerged as a typical feature of the biphasic molluskan life cycle within the Monoplacophora, subsequently becoming the dominant larval phase of the Phylum Molluska.
LARVAL FORMS OF MOLLUSCA | ZOOLOGYTALKS | 2025
Veliger Larva In this the prototroch is present at anterior side as a pair of ciliated lobes, an arrangement that considerably increases the support given to the larva and makes for a more vigorous and controlled locomotion.
Gastropod Larva (Veliger) - Evergreen State College
Figures 1 and 2 are sketches of a gastropod larva in the 2nd larval stage, or veliger, of some species of snail. They hatch at sea and can spend anywhere from days to months floating among other plankton as they grow and develop ( Craig M. Young et al. ).
Veliger larva - University of California, Irvine
2013年5月4日 · "Ballad of the Veliger", or "How the Gastropod got its Twist" by Walter Garstang, 1928 . The Veliger's a lively tar, the liveliest afloat, A whirling wheel on either side propels his little boat; But when the danger signal warns his bustling submarine, He stops the engine, shuts the port, and drops below unseen.
What is a trochophore? What is a veliger? - CK-12 Foundation
A trochophore is a type of free-swimming planktonic marine larva with several bands of cilia. It is characteristic of most mollusks and annelids. A veliger is the planktonic larva of many kinds of sea snails and freshwater snails, as well as most bivalve mollusks (clams) and tusk shells.
Veliger larva - Zooplankton - University of Tasmania, Australia
Main characteristic feature of the larva is the velum, the swimming organ, which comprises two large semi-circular lobes bearing long cilia along the perimeter. Can be seasonally abundant when marine snails, limpets, abalone, sea slugs, oysters and mussels etc. disperse their larvae into the water. Can be non-feeding or feeding stages.