Tzachi M. Samocha

ORCID: 0000-0001-8051-499X
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About
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Research Areas
  • Aquaculture Nutrition and Growth
  • Crustacean biology and ecology
  • Aquatic life and conservation
  • Aquaculture disease management and microbiota
  • Marine Bivalve and Aquaculture Studies
  • Marine and fisheries research
  • Water Quality Monitoring Technologies
  • Reproductive biology and impacts on aquatic species
  • Innovations in Aquaponics and Hydroponics Systems
  • Algal biology and biofuel production
  • Heavy metals in environment
  • Cassava research and cyanide
  • Water Quality and Pollution Assessment
  • Fish Ecology and Management Studies
  • Soil Geostatistics and Mapping
  • Soil and Water Nutrient Dynamics
  • Invertebrate Immune Response Mechanisms
  • Constructed Wetlands for Wastewater Treatment
  • Marine and coastal plant biology
  • Child Nutrition and Water Access
  • Animal Nutrition and Physiology
  • Fish biology, ecology, and behavior
  • Plant Physiology and Cultivation Studies
  • Fish Biology and Ecology Studies
  • Aquatic Ecosystems and Phytoplankton Dynamics

Texas A&M University – Corpus Christi
2000-2020

Texas A&M University
1993-2015

Arkansas Agricultural Experiment Station
1992-2011

Texas A&M University System
1993-2005

Auburn University
2004

Experimental Station
1998

Israel Oceanographic and Limnological Research
1983-1990

The bioflocs technology (BFT) for shrimp production has been proposed as a sustainable practice capable of reducing environmental impacts and preventing pathogen introduction. microbial community associated with BFT not only detoxifies nutrients, but also can improve feed utilization animal growth. Biofloc system contains abundant number bacteria which cell wall consists various components such bacterial lipopolysaccharide, peptidoglycan β-1, 3-glucans, is known stimulating nonspecific...

10.1111/are.12319 article EN Aquaculture Research 2013-11-16

Abstract The use of the same water over multiple culture cycles in a biofloc technology system can be highly beneficial. This study evaluated effect different levels biofloc‐rich on selected quality indicators and productive performance Pacific white shrimp, Litopenaeus vannamei , juveniles (3.5 g) stocked at 312 juveniles/m 3 cultured under conditions no exchange. was performed 30‐d period an 800‐L tank system. A total four enrichment (25, 50, 75, 100%) control (0%) were tested with three...

10.1111/jwas.12093 article EN Journal of the World Aquaculture Society 2014-02-01

The cultivation efforts within the National Alliance for Advanced Biofuels and Bioproducts (NAABB) were developed to provide four major goals consortium, which included biomass production downstream experimentation, development of new assessment tools cultivation, reactor technologies, methods robust cultivation. NAABB consortium testbeds produced over 1500 kg processing. a number model strains, but also took into some more promising strains found through prospecting consortium. Cultivation...

10.1016/j.algal.2016.11.021 article EN cc-by Algal Research 2016-12-13

Abstract Superintensive shrimp culture in zero‐exchange, biofloc‐dominated production systems is more biosecure and sustainable than traditional farming practices. However, successful application of this technology depends upon optimizing dietary formulations, controlling Vibrio outbreaks, managing accumulative changes water quality composition. A 49‐d study investigated the effect two commercial feeds differing protein content an indoor limited‐exchange, environment on Litopenaeus vannamei...

10.1111/jwas.12275 article EN Journal of the World Aquaculture Society 2016-04-07

Abstract The world shrimp-farming industry is currently experiencing major crop losses due to disease outbreaks, which are often associated with environmental degradation. Such can be minimized through the adaptation of technologies that enhance biosecurity and control. Current suggest a shrimp yield as high 10 kg/m2/crop achieved in indoor, super-intensive, closed-recirculation systems parameters controlled. Nevertheless, construction operating costs make financial viability these...

10.1300/j028v12n01_01 article EN Journal of Applied Aquaculture 2002-01-01

Abstract Two nursery trials and one grow-out culture trial with Pacific white shrimp, Litopenaeus vannamei, were conducted at an inland farm near Gila Bend, Arizona, using low-salinity (1.8 to 2.6 ppt) ground-water. Trials in greenhouse-enclosed concrete raceways bottom area of 97.5 m2 water volume 147.6 m3. Excellent survival (98.1±12.9%), FCR (0.7:1), yield (2.22±0.17 kg/m2) obtained a five-week study stocking density about 20,000 postlarvae/m2. In the trial, as high 86% 4.39 kg/m2 shrimp...

10.1300/j028v15n03_01 article EN Journal of Applied Aquaculture 2004-06-29

A 15-week growth trial was conducted with juvenile, Pacific white shrimp Litopenaeus vannamei to study the efficacy of using algal meals as a source highly unsaturated fatty acids in practical diets that are designed contain no marine protein or oil sources. Based on previous study, diet containing co-extruded soybean poultry by-product meal egg supplement and primary sources for formulations 350 g kg−1 crude 100 lipid. To further refine diets, fish two completely substituted plant oils...

10.1111/j.1365-2095.2006.00440.x article EN Aquaculture Nutrition 2006-08-31

Abstract The mean 96-h LC50 value of ammonia for juvenile Penaeus semisulcatus (0.35–2.4 g) was found to be 23.7 mg TAN/L (19.3–28.7, 95% C.L.). There no significant effect size on the sensitivity shrimp ammonia. Increased toxicity P. observed at dissolved oxygen (DO) levels below 55% saturation (3.7 ppm). At 27% DO saturation, (96-h LC50) doubled. In addition, time exposure required a given lethal decreased with reduced concentrations. Before and immediately after molt, shrimps were more...

10.1002/etc.5620090413 article EN Environmental Toxicology and Chemistry 1990-04-01

• Turbidity, total and volatile suspended solids were higher in the treatment with feed designed for semi-intensive system, whereas alkalinity was lower. Semi-intensive required more removal, oxygen bicarbonate supplementation. Weekly growth, yield biomass lower treatment, FCR higher. The systems (low-cost feed) financially underperformed formulated hyper-intensive (more-expensive feed). present study evaluated production of Litopenaeus vannamei a high density biofloc-dominated system using...

10.1016/j.aqrep.2016.03.002 article EN cc-by Aquaculture Reports 2016-03-18
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