W1 Overview/ Economic Impt.
Where is the earliest example of aquaculture? What did they farm?
China (Zhou dynasty in 221 B.C.E.)
Carp
What type of aquaculture system(s) would the following species would be farmed in?
Goby larvae
Adult gobies
Adult yellowtail tuna
Goby larvae: tanks
Adult gobies: tanks
Adult yellowtail tuna: cages/ pens
What is the purpose of broodstock in aquaculture?
A. To produce more individuals through spawning
B. To serve as a source of live feed
C. To monitor water quality
D. To enhance habitat conservation
A. To produce more individuals through spawning
Which live feed is known to be the easiest to culture but deficient in long-chain fatty acids?
A. Ciliates
B. Copepod nauplii
C. Copepods adults
D. Rotifers
D. Rotifers
True or false: A trait is the genetic makeup of an individual.
False (A trait is an observable or measurable characteristic.)
Compare and contrast aquaculture and capture fisheries in terms of production (e.g., in millions of tons) since the 1950's.
1950-1990: primarily capture fisheries and no aquaculture production.
1990-2020: Capture fisheries have plateaued since the 1990's and aquaculture production has increased.
An inland site has nutrient-rich soil but is located in a semi-arid region with limited water supply. What type of aquaculture system would you recommend for food production, and what species would you culture?
A recirculating aquaculture system (RAS) in tanks would be ideal because it minimizes water use and recycles water efficiently, making it suitable for areas with limited water resources.
Shrimp, food fish (e.g., tilapia, transgenic salmon)
____larvae are born underdeveloped and require parental care and time to mature whereas ______ larvae are more developed at hatching and can begin swimming and feeding shortly after birth.
A. Precocial; altricial
B. Altricial; precocial
B. Altricial; precocial
What copepod stage did Dr. Callan determine to be vital for feeding larval yellow tang and successfully closed the culture loop?
A. E13
B. C6
C. N1
D. E12
C. N1
Which of the following is NOT an example of genetic manipulation?
a) Transgenics
b) Selective breeding
c) Polyploidy
d) Hybridization
b) Selective breeding
A community in a semi-arid region with high evaporation rates and limited water resources is interested in aquaculture. What system and species would you recommend?
Consider recirculating aquaculture systems (RAS) to recycle water efficiently. Species like tilapia or catfish would be well-suited due to their adaptability and lower water requirements.
What are three key attributes that make a prey item suitable for marine fish larvae?
What is the difference between genotype and phenotype?
The genotype is the genetic makeup of an organism, while the phenotype is the observable expression of those genes.