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Full-Text Articles in Physical Sciences and Mathematics
Trophic Transfer Of Metals From Seaweed To Shellfish In An Aquaculture System, Sophia Boyd
Trophic Transfer Of Metals From Seaweed To Shellfish In An Aquaculture System, Sophia Boyd
WWU Graduate School Collection
Seafood, including fish, shellfish, and seaweed, are an important source of nutrients that could meet some of the increasing demand for food globally. In addition to nutrients, chemical contaminants can also be acquired from the environment by primary producers. Seaweeds take up a variety of inorganic and organic contaminants, including metals, that may pose risks to human health. Through trophic transfer, organisms can accumulate elevated levels of contaminants from consuming lower trophic-level organisms. Since particulate organic matter, including seaweed detritus, is a food source for filter-feeding bivalves, contaminants present in seaweed could transfer to shellfish via ingestion. The purpose of …
Assessing The Use Of The California Sea Cucumber (Apostichopus Californicus) Within Integrated Multitrophic Aquaculture (Imta), Casey Pruitt
Assessing The Use Of The California Sea Cucumber (Apostichopus Californicus) Within Integrated Multitrophic Aquaculture (Imta), Casey Pruitt
WWU Graduate School Collection
There has been recent interest in Washington State, USA in the culture of the California sea cucumber (Apostichopus californicus) for both wild-stock enhancement and as an aquaculture resource. The species is a good candidate for Integrated Multi-Trophic Aquaculture (IMTA), where the animals are supported entirely on the excess organic biodeposits from existing floating aquaculture operations (e.g., bivalves or finfish). In IMTA, excess nutrients and organic materials from higher-trophic-level organisms are taken up by lower-trophic-level species, providing both environmental benefits and secondary products for sale. Unfortunately, a reliable longterm tagging and tracking method is not currently known for A. …