Filter feeding is a form of suspensionfeeding in which water is pumped through a mesh-like screen that retainsparticles larger than the size of the holes in the mesh.The particles can be algae or small animals (includingeggs, embryos, and larvae). The capture device may be moved through the water to collect thefood particles, or water can also be brought into the organism where thenutrients are collected by some sort of filtering apparatus and the remainingwater is expelled. Suspension feeding is the removalof suspended food particles from the water column using some sort of capturedevice.Predators actively hunt, captureand kill their prey, and are usually carnivores.Ĭlassification based on EnvironmentalSource of Food.Grazers slowly work over a surface(such as rock, sediment, plant, shell) and continually gather and ingestfood as they go.Heterotrophic Classification Based onBehavior This includes many scavengers,as well as microherbivores that do not discriminate between phytoplanktoncells and animal eggs or embryos of similar size and some grazers that normallyeat large algae or plants but opportunistically eat small animals that areencountered during grazing. Omnivore- Latin, omnis "all,every" + vorare “to devour”Īn animal that eats both plant and animal material.This includes predators that kill live prey and scavengers that feed on dead animal material. Carnivore- Latin, caro "flesh"+ vorare "to devour"Īn animal that eats only animal material.Herbivore-Latin, herba "aherb" + vorare "to devour"Īn animal that eats only plant material, including suspension feeding onsmall algal cells ( microherbivory) grazing or biting pieces of larger plants ( macroherbivory).Heterotrophic ClassificationBased on Type of Organism Ingested Organisms that can synthesize fixed carbon from CO 2 or other non-organic sources using light or inorganic chemicals as an energysupply for synthesis (such as photosynthetic plants and algae). Autotrophic - Greek, auto “self” + troph “nutrition”.Heterotrophic - Greek, heteros “different” + troph “nutrition”Īn organism that must obtain nutrition from fixed carbon (organic material)and cannot produce such materials itself.These feeding strategies can be classified according to thetype of food ingested and the environmental source of the food. Summary of Feeding Strategies and Classifica tion sĪnimals have evolved multiple mechanisms to exploit different types of foodin the ocean.
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |