In:
Brazilian Journal of Aquatic Science and Technology, Editora UNIVALI, Vol. 16, No. 1 ( 2012-03-28), p. 33-39
Abstract:
This study evaluates the influence of depth and environmental parameters on the development of Gracilaria birdiae Plastino & Oliveira (Gracilariaceae) in an organic shrimp pond. The macroalgae was cultivated on modules placed at three depths (surface, 10 and 20 cm depth). Growth rates were measured weekly based on variation in fresh weight during 35 days. G. birdie showed the greatest productivity (35.7%) at 10 cm, followed by 20 cm (33.4%) and surface (25.3%). Average SGR values were 0.36±0.57% d-1(surface) 0.38±0.96% d-1 (10 cm) and 0.38 ±0.54% d-1(20 cm), over the study period. The biomass variation of G. birdiae showed significant difference among the three depths. The correlations generated by multiple regressions demonstrated that analyzed environmental parameters explain from 62 to 67 % of G. birdiae growth.
Type of Medium:
Online Resource
ISSN:
1983-9057
,
1808-7035
DOI:
10.14210/bjast.2012v16n1
DOI:
10.14210/bjast.v16n1.p33-39
Language:
Unknown
Publisher:
Editora UNIVALI
Publication Date:
2012
detail.hit.zdb_id:
2255217-0
detail.hit.zdb_id:
2413337-1
SSG:
12