Good choices generally include anchovies, catfish, clams, Dungeness and stone crabs, crawfish, Pacific halibut, Atlantic herring, mussels, wild or Alaskan salmon, sardines and bay scallops. Why are some farmed fish on the best list (like catfish) and some on the worst (like farmed Atlantic salmon)?
Good choices generally include anchovies, catfish, clams, Dungeness and stone crabs, crawfish, Pacific halibut, Atlantic herring, mussels, wild or Alaskan salmon, sardines and bay scallops. Why are some farmed fish on the best list (like catfish) and some on the worst (like farmed Atlantic salmon)?
Farmed fish are raised in various ways, some of which do more ecological harm than others. For example, farmed Atlantic salmon are typically raised in open-water net pens. These open ‘cages’ allow uneaten feed and fish waste to pass through, which can contaminate surrounding waters. Fish raised in net pens are usually packed tightly together so fish are more prone to disease and sea lice infestation. To prevent epidemics, chemical treatments such as parasiticides and antibiotics are often administered. Damage to pens can result in the escape of thousands of fish, often in areas where they are not native. The danger is that escaped farmed fish can pass disease to native stocks and compete with them for food. Farmed salmon also require high amounts of wild fish in their feed (it takes two to three pounds of wild fish to raise one pound of farmed salmon). They also contain higher levels of contaminants (like PCBs, pesticides and dioxins) than wild salmon. But many species of fish are farm
Related Questions
- Good choices generally include anchovies, catfish, clams, Dungeness and stone crabs, crawfish, Pacific halibut, Atlantic herring, mussels, wild or Alaskan salmon, sardines and bay scallops. Why are some farmed fish on the best list (like catfish) and some on the worst (like farmed Atlantic salmon)?
- Also, what EXACTLY should we feed the octopus? Should we also get an external refugium to house live feeder shrimp, crabs, clams...?
- Are fiddler crabs good pets?
