Crecimiento y supervivencia del mejillón Mytella strigata (Bivalvia: Mytilidae) en cultivo suspendido en la Laguna Macapule, Sinaloa, México

Growth and survival of the mussel Mytella strigata in a hanging culture method were evaluated during seven months in La Piedra estuary at the Macapule Lagoon System, Sinaloa, Mexico. Relative growth instant rate and growth were determined from six thousand seedlings (6 mm average). Relationship among total length-total weight was analyzed using a potential regression. Survival rate was biweekly evaluated by counting all those organisms alive as long with the accumulated rate throughout the culture period. In addition physical-chemical parameters were measured every 15 days. The temperature of the estuary fluctuated between 18.4 °C to 30.2 °C, salinity was among 28 to 40 ups and the average chlorophyll a concentration was 3.11mg · m^-3. Average length of the shelf was 46.99 ± 0.26 mm and the average growth of 0.12 mm · day^-1 (i.e. allometric growth). There were significative differences between total-weight throughout the culture (p < 0.05). Growth parameters evaluated were L_∞ = 162 mm, K = 0.585 and t_o = -0.123 years. Final survival rate was 81.25%. The mussell reach the commercial length at 7 months.