A preliminary evaluation of physiological filtration variables forCrassostrea corteziensis(Hertlein, 1951) andAnadara tuberculosa(Sowerby, 1833) in shrimp aquaculture effluents

Abstract

This study examined the main ¢ltration variables [¢ltration rate (FR), clearance rate (CR) and assimilation e⁄ciency (AE)] of the Cortez oyster, Crassostrea corteziensis (Hertlein, 1951), and the mud cockle, Anadara tuberculosa (Sowerby, 1833), in shrimp aquaculture e¥uents at three di¡erent £ux velocities (1.5, 3 and 4.5 L h À 1 ) using a 36-respirometer system, each with a 0.5 L capacity. Under inverted photoperiod conditions, free variations in the environmental parameters were allowed to mimic e¥uent conditions during a pair of 12-h trials. The FRs for both species (0.124, 0.328 and 0.402 L h À 1 for the Cortez oyster; 0.093, 0.189 and 0.345 L h À 1 for the mud cockle) were relatively low as compared with those reported for similar or related species. The CRs were higher for the Cortez oyster (20.04, 52.92 and 64.70 L h À 1 ) than for the mud cockle (10.96, 22.95 and 42.12 L h À 1 ); in both cases, the values were in the range reported previously for the last species. The AE for both mollusks (over 92% for the Cortez oyster and over 95% for the mud cockle) was very high and greater than that found by other authors for the same or related species. The three ¢ltration variables were better at higher e¥uent £ux velocities. These preliminary results strongly suggest that both species are good candidates to be considered for bioremediation of aquaculture e¥uents.

Combined Effects of Temperature and Seston Concentration on the Physiological Energetics of the Manila Clam Ruditapes philippinarum

“…fresh algal diets and particle concentrations). Low CRs of 0.04–0.10 L g –1 h –1 ( Crassostrea corteziensis ) and 0.33–0.56 L g –1 h –1 ( Anaara tuberculosa ) were also observed for other bivalve mollusks depending on the experimental conditions [ 62 ]. Considering the previous finding that the CR of R .…”

Back to the Basics: Biomimicry in Shrimp Farming

“…It is also reported that nutritional value of cultured microalgae, Skeletonema costatum, and shrimp effluent as food sources for the Pacific oyster, Crassostrea gigas, not finding significant differences between both sources Lefebvre et al, (2000). Several other commercially important bivalves, e.g., Anadara grandis, A. tuberculosa, Crassostrea corteziensi has been reported for having excellent bioremediation properties for the shrimp effluents (Miranda-Baeza et al, 2006, Wilber et al,2006, Peña-Messina et al, 2009. The high survival of clams after the trial, suggests that the shrimp pond effluent may be an acceptable environment for the growth of the species, especially at the lower density (12.5 /m 2 ) where a survival of 85% was observed by Martínez-Córdova et al, (2011).…”

Enhanced growth of the pleasure oyster Crassostrea corteziensis cultured under integrated multi‐trophic aquaculture ( IMTA ) concept, using farm effluents of shrimp Penaeus vannamei

“…This last species is a native oyster with marketable value (Trabal‐Fernández et al, 2014), that is adapted to local environmental conditions such as high temperature and elevated precipitation seasons. The pleasure oyster is cultivated all year round (Castillo‐Durán et al, 2010) and has been suggested as a good candidate for bioremediation for shrimp farming effluents (Garza‐Aguirre et al, 2013; Peña‐Messina et al, 2009). Therefore, this species may be considered as a suitable candidate for evaluating growth performance using different zootechnical management strategies in relatively deep effluent drainage channels from shrimp farms.…”