Optimal Culture Capacity of White Shrimp (Litopenaeus vannamei) and Razor Clam (Sinonovacula constricta) in a New Series-Connection Culture Model

To construct an effective circular mix-culture model and investigate its culture capacity,we established one small and one large systems,with white shrimp(Litopenaeus vannamei)and razor clam(Sinonovacula constricta)cultured in separate ponds.The culture water from the L.vannamei was pumped to the S.constricta,and the culture water from the S.constricta overflowed back into the L.vannamei via gravity.In trial I,we tested four culture densities(groups 1–4),and monitored water quality,growth indices,and digestive and immune enzyme activities.From the results,the nitrogen and phosphorus levels generally increased then declined after 56 days,and were lower in groups 1 and 2.The specific growth rate of group 2 was the highest.After 56 days,activities of four digestive enzymes were increased in group 2,and lysozyme activity was significantly decreased in S.constricta in groups 1–4;Alkaline phosphatase activity of L.vannamei was increased in group 3,but decreased in S.constricta in groups 2–4;Acid phosphatase activity was significantly higher in groups 1–3(P<0.05),while SOD and CAT activities were significantly elevated in group 2(P<0.05).Thus,we applied group 2 density for trial II.In trial II,nitrogen and phosphorus concentrations declined significantly during the latter stages,and growth indices were higher than the control(P<0.05).The yields of L.vannamei and S.constricta were significantly higher than the control(P<0.05).The results revealed a good circular mix-culture system with the optimal culture capacity for L.vannamei(40 ind m^(−2))and S.constricta(300 ind m^(−2)),which provided a reference for the future culture of them.

Hypothesis and Thought Experiment:Can We Program AI Forms with the Foundations of Sentience to Protect Humanity?

The speed,capacity,and strength of artificial intelligence units(AIs)could pose a selfinflicted danger to humanity’s control of its own civilization.In this analysis,three biologically-based components of sentience that emerged in the course of human evolution are examined:cultural capacity,moral capacity,and religious capacity.The question is posed as to whether some measure of these capacities can be digitized and installed in AIs and so afford protection from their dominance.Theory on the emergence of moral capacity suggests it is most likely to be amenable to digitization and therefore installation in AIs.If so,transfer of that capacity,in creating commonalities between human and AI,may help to protect humanity from being destroyed.We hypothesize that religious thinking and culturally elaborated theological creativity could,in not being easily transferred,afford even more protection by constructing impenetrable barriers between humans and AIs,along real/counterfactual lines.Difficulties in digitizing and installing the three capacities at the foundation of sentience are examined within current discussions of“superalignment”of superintelligent AIs.Human values articulate differently for the three capacities,with different problems and capacities for supervision of superintelligent AIs.