TY - JOUR
T1 - Growth and survival of Juvenile Gulf Killifish Fundulus grandis in recirculating aquaculture systems
AU - Ofori-Mensah, Samuel
AU - Green, Christopher C.
AU - Nunoo, Francis K.E.
PY - 2013
Y1 - 2013
N2 - Gulf Killifish Fundulus grandis is one of the largest killifish species. It is a euryhaline teleost and a popular baitfish occurring along the coastal Gulf ofMexico and southern Atlantic states. There is currently limited information on the grow-out characteristics of killifish in indoor recirculating aquaculture systems (RAS). This preliminary study aims at determining the effects of stocking density on the growth and survival of juvenile Gulf Killifish in indoor RAS. Individuals of 0.45 ± 0.01 g (mean ± SE) weight were stocked at initial densities of 2 and 5 fish/L in 60-L tanks in RAS with four replicates each.After 82 d of culture, difference in growth at these densities was not significant (P>0.629).Mean survival and gross and net yields differed by stocking density. Survival (94.6%) in the lowest density was significantly high (ANOVA: P < 0.01) compared with survival (83.9%) in the highest density. Gross and net yields were significantly high (ANOVA: P < 0.01) at the 5 fish/L stocking densities. Compared with the traditional pond system, the use of RAS in this preliminary study enabled stocking of killifish at very high densities. However, cultured fish grew relatively slow in RAS compared with pond culture and did not reach market size (≈3.3 g).
AB - Gulf Killifish Fundulus grandis is one of the largest killifish species. It is a euryhaline teleost and a popular baitfish occurring along the coastal Gulf ofMexico and southern Atlantic states. There is currently limited information on the grow-out characteristics of killifish in indoor recirculating aquaculture systems (RAS). This preliminary study aims at determining the effects of stocking density on the growth and survival of juvenile Gulf Killifish in indoor RAS. Individuals of 0.45 ± 0.01 g (mean ± SE) weight were stocked at initial densities of 2 and 5 fish/L in 60-L tanks in RAS with four replicates each.After 82 d of culture, difference in growth at these densities was not significant (P>0.629).Mean survival and gross and net yields differed by stocking density. Survival (94.6%) in the lowest density was significantly high (ANOVA: P < 0.01) compared with survival (83.9%) in the highest density. Gross and net yields were significantly high (ANOVA: P < 0.01) at the 5 fish/L stocking densities. Compared with the traditional pond system, the use of RAS in this preliminary study enabled stocking of killifish at very high densities. However, cultured fish grew relatively slow in RAS compared with pond culture and did not reach market size (≈3.3 g).
UR - http://www.scopus.com/inward/record.url?scp=84880091826&partnerID=8YFLogxK
U2 - 10.1080/15222055.2013.799623
DO - 10.1080/15222055.2013.799623
M3 - Article
AN - SCOPUS:84880091826
SN - 1522-2055
VL - 75
SP - 436
EP - 440
JO - North American Journal of Aquaculture
JF - North American Journal of Aquaculture
IS - 3
ER -