As a part of our environmental science curriculum, SPFHS will be participating in a New Jersey Fish and Wildlife program known as Trout in the Classroom (TIC). TIC is an environmental education program that connects students with their watershed and serves as a gateway stewardship experience for students, fostering a new generation of wildlife advocates and environmental stewards.
The program begins by assembling the 55 gallon aquarium system we will use to host hundreds of trout eggs. Once a healthy ecosystem is established for the trout, 300 eggs arrive from the Pequest Trout Hatchery and the months-long process begins by monitoring tank conditions so that a percentage of the sensitive trout eggs survive.
Over the course of the next few months, students witness the trout life cycle and as their trout grow, so does their care for the trout and their environment. This care translates into a deep understanding and connection to the watershed systems on which all life depends. The program culminates with a field trip to Seeley’s Pond in Watchung Reservation, where students release their fish into a state-approved location.
Rainbow trout are a member of the salmon family (salmonids) and can be found on all continents except Antarctica today. These fish are an oxygen loving species and therefore inhabit cold streams and rivers since colder water holds more dissolved gasses than warmer water. They live on a gravelly bottom with enough vegetation that provides shelter. Because of their habitat requirements for cold, clean waterways, rainbow trout serve as a valuable indicator species. Rainbow trout are a popular game fish and an important food source for humans. Because of that, rainbow trout are often cultivated in aquacultures (commercial farms) throughout the world. Despite increased demand for rainbow trout, their number is still high and stable in the wild. These animals are not on the list of endangered species.
New Jersey has a surprising abundance and variety of self-sustaining wild trout populations. Brook trout, the state’s only native salmonid, occurs most often, followed by brown trout, rainbow trout, and lake trout. Because of their high water quality and habitat requirements, trout are valuable indicators of healthy aquatic ecosystems. Currently nearly 1,000 miles of streams, or five percent of streams statewide, in New Jersey contain populations of wild brook, brown, and rainbow trout. Wild trout require cold water temperatures year round and a rocky substrate suitable for spawning in order to survive and reproduce.
Like most fish, our rainbow trout will produce ammonia (NH3) as a waste product. To prevent ammonia from building up to toxic levels in the tank, we will seed our tank and filter with nitrifying bacteria which metabolize ammonia (NH3) into nitrite (NO2-) and ultimately nitrate (NO3-) which are less harmful. A weekly water change/vacuum will also help keep the water levels safe.