Im in Biology right now and I just need to know about a Ceratostoma inornatum [Japanesse oyster drill] why its a risk. why are people concerned about it? only answer if you know!
2006-12-12 04:29:41 · 3 answers · asked by ? 2 in Education & Reference ➔ Homework Help
Well, it's an invader species that destroys oyster farms.
Oysters are a marketable product, so there is potential economic damage and loss of a food source.
2006-12-12 04:46:27 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Definition: The Japanese oyster drill, a small snail about an inch long, was imported accidentally from Japan with shipments of Pacific oysters (Crassostrea gigas) early in the 1900's. These marine snails drill small holes through the shell of young oysters with their radula (a ribbon-like band of teeth), to eat the oyster.
In aquaculture, alien species and genotypes, also known as introduced species and genetically improved species, are a valid means to increase production. However, there is concern that these species will adversely affect local ecosystems.
Four broad categories exist for ecological impacts:
basic species interactions such as predation and competition
genetic impacts
disease impacts
habitat alteration
http://www.oceansatlas.com/world_fisheries_and_aquaculture/html/issues/ecosys/envimpactfi/biodiversity.htm
I did not know but I looked it up!..Hope this information helps you!
2006-12-12 05:00:42 · answer #2 · answered by Anonymous · 0⤊ 0⤋
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2016-11-25 22:55:18 · answer #3 · answered by ? 4 · 0⤊ 0⤋