Friday, January 7, 2011

Predation and Food Webs in an Estuary (Chesapeake Bay) symbiotic and predatory relationships are relevant to the estuary biome. Here is an example of a common food chain in an estuary:
Phytoplankton(producer)-Zooplankton(primary consumer)-Crab (Secondary consumer)-Fish(Tertiary consumer)-Human (Quaternary consumer). In the Chesapeake Bay estuary discussed before this chain is prevalent. On the left is a Chesapeake Bay food chain illustrating this. Above is a Chesapeake Bay food web.

These food webs and food chains illustrate common predator-prey relationships in estuaries. Several of these include:
The Blue crab (Callinectes sapidus) and the infaunal clam prey (Mya arenaria).
Also, the pennate freshwater diatom(Asterionella formosa) and the estuarine copepod zooplanktonn (Acartia hudsonica).

And finally, Rockfish (Morone saxatilis) larvae feed on various types of nauplii, including krill (Euphausia pacifica).,0.jpg



1 comment:

  1. Just FYI, your picture of a "rockfish" or Atlantic striped bass (Morone saxatilis) actually depicts a copper rockfish (Sebastes caurinus), which are found exclusively in the Pacific Ocean. There are a few species of Sebastes rockfishes in the Atlantic, but they are exclusively deepwater forms, and are bright red.