Acuicultura Y Pesquerías

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    Estimación de la pesca artesanal de camarones comerciales, de la familia Penaeidae, en el estuario del río Chone
    (Universidad Técnica de Manabí, 2007) Lavayen Zapata, Francisco Alejandro ; Torres Ávila, Juan Pablo ; Marjorie Idrovo V.
    The present study was carried out it in the estuary of the river Chone, county of Manabí. The fishing sampling embraced a period of six months (July - December 2005). The size of the catches was registered by weighting the shrimps captured from canoes and standardized fishing arts were recorded monthly, The Fishing Effort was determined as the spending time at the fishing area. Also the Fishing Yield and the Catch Composition were evaluated. The capture were high, since from 720 samples analyzed, it was obtained a weight of 1330,422 Kg of commercial shrimp, being the Atarraya and the Drift Net, the two arts of fishing more used. For both arts, the catches and fishing effort amount were higher in Km8 than Leonidas Plaza. The Fishing Yield, in contrast was lower Km. 8. Four species of the family PENEIDAE was identified scored in order of occurrence percentage: Litopenaeus vannamei, white shrimp (61,05%), Litopenaeus stylirostris, white shrimp (36, 86%), and in smaller abundance Trachypenaeus similis pacificus Zebra shrimp (1, 54%) and Litopenaeus occidentalis, white shrimp (0, 54%).
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    Monitoreo de la pesca artesanal de peces comerciales en el estuario del río Chone, provincia de Manabí
    (Universidad Técnica de Manabí, 2007) Alcívar Leones, Fabián Octavio ; Mero Veliz, Pedro Gabriel ; García, María Laura
    This document contains information about artesanal fishing activity success in river Chone stuarium – Manabí, from January to June of 2005 year. The achievement of the different fishing arts used, like cast net, line of hand, boulter, trammel, pulled web, then the trammel was the mast regular worth ship used by local fishermen. I san that the highs web used prance a offensive and harm full impact to stuarium ecosystem because is not a selective fishing art make a lot of damage in different fish kind’s, craps and smallest kinds of mollusc’s. Themes used boat is a canoe with manual operation, this kind of boat is used in 77,71 % of cases, 16 % for fibber class boats, and a 6,28 % for word boats. The fishing process was fronforen from eight frequently used colanders, named: the Charcoal, Alcatraz, herring, Caletón, heron white, nose of devil, island of the birds, punt white, was identify twenty five fish families like: ARIDAE – BOTHIDAE – CARANGIDAE - CENTROPOMIDAE – CYNOGLOSSIDAE – EPHIPPIDAE – EXOCOETIDAE – ENGRAULIDAE – GERREIDAE – KYPHOSIDAE – MUGILIDAE – MULLIDAE – MYLIOBATIDAE – MURAENIDAE – NEMATISTIIDAE – LABRIDAE – LOBOTIDAE – LUTJANIDAE – OPHICHTHIIDAE – POLYNEMIDAE – POMADASYDAE – SCIAENIDAE. T he weight of total fishing process, obtain across 6 month mentored was for canoes 934 pounds; fibber glass boats 764 pounds and wood boats 31,5 pounds.
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    Análisis de la pesca artesanal de las Corvinas comerciales (género cynoscion) en el estuario del río Chone, provincia de Manabí durante los meses de Junio a Noviembre del 2006
    (Universidad Técnica de Manabí, 2008) Rivadeneira Cagua, Yuli Alexandra ; Cruz Santana, José Adolfo ; García, María Laura
    The present study analyse the artisanal fishery of the commercial croakers (género Cynoscion) at the Rio Chone Estury, Manabí Province. The samples were done at the fishery “caletas” areas Leónidas plaza and Km 8, where there were registered 3.098 croakers, from the catches obtained at the canoes and by standarized fishing arts during June to November of 2006. The most abundant species was Cynoscion albus, the Yellow croacker (72%), then Cynoscion squamipinnis ayanque (14%), Cynoscion phoxocephalus anton (11%) and finally. Cynoscion stolzmanni, (3%). The total volunme of the catches, reached 2.417,627 kg and the catches/ effort registered with the hook was low, while for the drifnet higher.
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    Evaluación de la Pesquería de la Concha Prieta (Anadara tuberculosa) en el Sitio San Felipe del Estuario del río Chone
    (Universidad Técnica de Manabí, 2008) Bermúdez Medranda, Alexandra Elizabeth ; García, María Laura
    The harvest of the concha negra (prieta) was evaluated at the location of San Felipe which belongs to the Cantón San Vicente, during the period of November 2007 to March 2008. It was analyzed by the following parameters: species composition, size, weight, biometrics relations, the catche effort and catche per unit of effort. This was done by taking weekly samples of the collected species by local concheros. From a total of 851 monitored organisms, Anadara tuberculosa (Sowerby 1833) reported an occurrence of 95,06% followed by the specie Anadara similis with a 4,94%. The average size of the Anadara tuberculosa was 43,92 mm (total length), which means that the concha prieta is being harvested under the minimum legal permisible of 45 mm. In relation to the length and total weight the study showed a high correlation of the ecuation with a determination coefficient of r2 = 0.927 the ecuation potential is expressed by: Pt = 0,001 Lt 2,809 The harvest productivity was of 17, 58 units/conchero/hour, with an average of 2-3 concheros/day.
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    Crecimiento de juveniles del pez Chame (Dormitator latifrons Richardson, 1844) alimentados con dietas de diferentes niveles de proteína
    (Universidad Técnica de Manabí, 2009) Guadamud Mejía, Tyrone Xavier ; Vera Cedeño, Joselo Apoloneo ; Idrovo V, Marjorie
    The present study was carried out from March to June 2008, near the community of Bachillero (province of Manabí), being its main objective to evaluate the effect of different protein levels (22, 28 and 35%) on the parameters of growth (Weight – Longitude) of the juvenile fish “chame” (Dormitator latifrons). At the beginning of the study, the averages for Weight – Longitude were of 41, 84 ± 1.35 g and 14,45 ± 0,20 cm, respectively. At the end of the cultivation, the fed organisms with the diet to 22% presented a averages of individual weight and longitude of 193,22 ± 4,62 g, and 23,01 ± 0,16 cm respectively, while those whith the diets of 28 and 35% presented, respectively, a corresponded to individual values of 210,55 ± 5,01 g, 22,58 ± 0,16 cm and of 213,19 ± 5,31 g, 22,58 ± 0,15 cm (p <0,05). The regressions biometrics for Weight and Longitude in each one of the diets were: r 2 = 0,93 / Pt = 0,0106 Lt 3,143 (22%); r 2 = 0,9351 / Pt = 0,012 Lt 3,112 (28%); and r 2 = 0,9435, Pt = 0,0113 Lt 3,125 (35 %).
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    Crecimiento y sobrevivencia de la ostra perlífera (Pteria sterna) en cultivo suspendido flotante en la desembocadura del estuario del río Chone, provincia de Manabí
    (Universidad Técnica de Manabí, 2009) Figueroa Delgado, Luis Alberto ; Treviño Zambrano, Luis Manuel ; García V, María Laura
    The present study of growth and survival in phase of juvenile, during three months to different densities, were carried out with the purpose of finding the best conditions required for the development of the extensive cultivation of the oyster perlífera (Pteria sterna). The wild seed was captured in natural banks in the estuary of the river Chone in the month of November 2007, the juvenile ones that presented sizes initial average in longitude of the shell 50,18 mm, were placed in plastic egg pale and these on baskets of use fruit to densities of 50, 75 and 100 individuals for unit and they stayed in suspension to a depth of 2,25 m. The analysis of variance the cultivated organisms to the different densities, indicated significant differences. ( =0.05) among the longitude average to densities of 50 with 75, 50 with 100, 75 with 100. Differences were observed at growth, height and longitude of the shell, among the three densities under test.
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    Determinación de la supervivencia de larvas de Jaiba Callinectes toxotes, a diferentes niveles de salinidades en laboratorio, a partir de hembras ovigeras
    (Universidad Técnica de Manabí, 2009) Lucas Marcillo, José Miguel ; Paladines, Lucrecia ; Idrovo Vizuete, Marjorie
    The following research consisted in the determination of the crabs’ larval survival of C. toxotes, to different levels of salinity in the laboratories of aquaculture’s career, in Sucre, Manabí province. This research had 25 spawns of C. toxotes, beginning from ovigerous female of between 14 and 17 cm of ampleness, captured in front of Corazón Island of río Chone estuary, between February and July of 2008. The time of duration development based in the coloration change of the egg masses was of 8 to 11 days in 9 crabs was about 10 to 11 days, with an average of 9,08 ± 0,35 days, producing between 1’ 022582 to 2’874182 larvae/female with an average of 1’666.232, 46 ± 173.276, 26 to a temperature of 27oC. We described five larval stages of pre–zoeal, zoeal 1, 2 ,3 ,4 and the development of larval duration was of 7 days, these were sowed in 30 retorts in the 3 levels of saltwater. We obtained an average survival of 3, 66 ± 2, 49 % since pre–zoeal to zoeal IV in salinity of 20 ups with an average of temperature of 27, 41 ± 0, 55 oC in the salinity of 25 ups we obtained an average survival of 10, 66 ± 8, 71% since pre–zoeal to zoeal III with an average of temperature of 27, 57 ± 0, 49oC and an average survival of 5,35 ± 11,38% since pre–zoeal to zoeal III in the salinity of 30 ups with an average of temperature of 27, 24 ± 0,55oC.
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    Enfermedades del Chame (Dormitator latifrons) en cultivo, Tosagua, Manabí, Ecuador
    (Universidad Técnica de Manabí, 2009) Centeno Zambrano, Ángel Agustín ; Reyes Lucas, José Heriberto ; García V, María Laura
    The present studing consisted in the identification of sicknesses in Chame (Dormitator latifrons), in cultive’s pools, Tosagua Province of Manabí it realiced during the period between the months march to june 2008. It inform the recovering of sicknesses ectoparasitaries how: the “piscicolosis”, produced by, hirudineos worms, leeches, from family Piscicolidae. Other sickness which met was the argulosis knomn how the louse of yhe fhishes of the sweed watter, produced by the crostaceuos Argulus sp. Besides it has registered the forunculosis produced by bacteries gram negative (Aeromonas sp.). This resolved utilizing medium of cultive selective agar – agar and bacto agar, in patterns of intestinal tracto, stomach gills and epidermis with ulcerations profound hemorrhags to begin start of exemplaries of sick chame (Dormitator latifrons), collected of pool’s culture in Tosagua.
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    Enfermedades del Chame (Dormitator latifrons) en cultivo, Tosagua, Manabí, Ecuador
    (Universidad Técnica de Manabí, 2009) Centeno Zambrano, Ángel Agustín ; Reyes Lucas, José Heriberto ; García V, María Laura
    The present studing consisted in the identification of sicknesses in Chame (Dormitator latifrons), in cultive’s pools, Tosagua Province of Manabí it realiced during the period between the months march to june 2008. It inform the recovering of sicknesses ectoparasitaries how: the “piscicolosis”, produced by, hirudineos worms, leeches, from family Piscicolidae. Other sickness which met was the argulosis knomn how the louse of yhe fhishes of the sweed watter, produced by the crostaceuos Argulus sp. Besides it has registered the forunculosis produced by bacteries gram negative (Aeromonas sp.). This resolved utilizing medium of cultive selective agar – agar and bacto agar, in patterns of intestinal tracto, stomach gills and epidermis with ulcerations profound hemorrhags to begin start of exemplaries of sick chame (Dormitator latifrons), collected of pool’s culture in Tosagua.
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    Análisis de la pesca artesanal de lisa (género múgil) en el estuario del río Chone, provincia de Manabí
    (Universidad Técnica de Manabí, 2009) Giler Marmolejo, Teresa Marlene Del Rocío ; " " ; " "
    The present study consisted on the artisanal catches analysis of the Mugill’s Mullets at the chone’s river estuary county of Manabí. The fishing monitorings were carried out in the landing creeks, located in the Kilometer 8 and Leonidas Plaza during the months of july to october of the 2008. There were registered a total of 12.783 mullets coming from the obtained captures on board the canoes by standardized fishing arts ”enmalle net”. The fishing, effort was considered here as the permanency at fishing task. The fishing volumes, the catches composition and the catches per - unit of effort were determined also. The catches composition in order of percentage of occurrence showed the most abundont Múgil cephalus (Flathead mullet) with 92,27%; followed by Múgil curema (White mullet) with 7,02%; and Múgil hopes (Hospe mullet) with 0,11%. The volume of thecatch was significant, registered 240 samples they weighed 25.944,9 Kg fish. The fishing and the catch per- unit of effort (cpu) was generally bigger in Kilometer 8.
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    Construcción de una estación fija de monitoreo ambiental en las instalaciones de la carrera de acuicultura, Universidad Técnica de Manabí, extensión bahía de Caráquez
    (Universidad Técnica de Manabí, 2010) García Bazurto, María Monserrate ; Mendoza García, Stalin Javier ; Mera Paz, Alexandra Maribel ; Vega Zambrano, Luis Alfonso ; Idrovo V, Marjorie
    This project was done at the Bahia De Caraquez extension of the school of aquaculture at the Universidad Tecnica De Manabi, with the goal of building an environmental monitoring station in the sea outside the premises of the institution, to enhance the intrinsic research capabilities, experimentation, as well as teaching of engineering and aquaculture. The approximate cost of this station was US$ 6.685,35, and includes the primary construction materials used, that were timber, zinc, gravel, stone ball, sand, nails, among others. Laboratory equipments from the institution were used for measuring physical, chemical, and biological parameters. The time taken for the development of the project was ten months, from july 2009 to april 2010, which followed this guidelines: we began with the development of the three designs: Structural, architectural and of covert, which established the guidelines of the construction work. For the construction of the base, casting material was used to provide stability and security. Additionally, planks of wood such as guayacan were used to support the platform. In the construction of railings, roof, ramp and staircase; different types of wood (lignum, Samangan, Tiller and laurel) were used. For the roof, tiles zinc painted with anticorrosive paint was used to ensure their durability. For fifteen consecutive days physicochemical and biological parameters of the Chone river estuary and environment were registered in a matrix. Parameters analyzed were dissolved oxygen (mg / l), air temperature (° C) water temperature (° C), salinity (ups), hydrogen potential pH, current (m / s), turbidity and quantification of phytoplankton.
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    Determinación de la composición y abundancia de almejas de los Géneros Protothaca y Chione en una zona intermareal en el estuario del río Chone
    (Universidad Técnica de Manabí, 2010) Delgado Erazo, José Patricio ; García Bermúdez, Alan Emilio ; Ibarra Mayorca, Teresa Eulalia
    The abundance and composition Protothaca and Chione clams were studied in 500 m2 intertidal area the Chone river estuary from May to November 2009. The samples were collected fortnightly, from May to November, by random collection with a 1 m2 standard quadrate. Temperature, salinity, pH and dissolved oxygen were recorded. One Chione and five Protothaca were found obtaining two thousand eight hundred and fifty nine clams, beining 749 (26,20 %) Chione subrugosa and 586 (20,50 %) Protothaca asperrima. The size ranges for Chione subrugosa osciled between 15 to 39 mm total length, with length averages of 28,25 ± 0,27 mm and weight average of 12,32 ± 0,30 g; for Protothaca asperrima ranges from 15 to 45 mm with average of 32,82 ± 0,38 mm of total length and averages total weight of 15,89 ± 0,44 g. The total weight (Wt) and total length (Lt) relation for Chione subrugosa was represented for the equation Pt = 0,004 Lt2,333 (r2= 0,765) and for Protothaca asperrima Pt = 0,008 Lt2,161 (r2 = 0,716). The average production for Chione subrugosa was 11,43 ± 0,37 g/m2 with average density of 3,06 ± 0,33 clams /m2 in contrast Protothaca asperrima presented an average production of 14,52 ± 0,58 g/m2 and an average density of 2,53 ± 0,33 clams /m2 showing significative differences between months (p < 0,05).
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    Fecundidad del Dorado (Coryphaena Hippurus Linneo, 1758) en el Pacifico Suroriental, durante Septiembre 2008 a Junio 2009
    (Universidad Técnica de Manabí, 2010) Vélez Falcones, Jorge Enrique ; García, María Laura
    The fecundity of dolphinfish (Coryphaena hippurus) was estimated at 312 specimens considered macroscopically as mature captured by the Ecuadorian long line fleet in the Southeastern Pacific during September 2008 to June 2009. For the batch fecundity estimation were counted alone the hydrated oocytes ≥ 999,8 microns (μm) of diameter within the gonad. The distribution of frequency of diameters of the 62.088 oocytes taken out of the 312 samples of gonad, presented two modal groups; a smallest modal group of 100 to 900 μm corresponding to 16,41% considered as oocytes not hydrated, another more advanced group between 1.000 and 2.000 μm of diameter, that understands 51.014 units ovum considered as hydrated that it corresponds 83,59% of the total of oocytes analyzed, whose range of carvings go between 999,8 to 1.999,5 μm of diameters ( ̅ = 1.455, 7 ± 1,66 μm), which were considered to estimate the batch fecundity. The results obtained show ranges between 17.499 and 801.960 oocytes ( ̅ = 219.997 ± 17.023 oocytes), for females with ranges from 56 to 170 centimetres (cm) of total length ( ̅ = 106,3 ± 2,67 cm) and the total weight with range from 908 to 15.890 grams (g) ( ̅ X= 5.717, 6 ± 544,16 g). The relationship between batch fecundity (F) and the total length (Lt, cm), batch fecundity (F) and the total weight (Wt, g) was expressed by the potential equations: F = 23,52Lt1,920 r2 = 0,391 F = 104,5Wt^0,883 r2 = 0,567. There a significant difference in the bath fecundity average of fishes captured in the provinces Esmeraldas, Manabí and Santa Elena (north, middle and south of the Ecuador) (P < 0,05).
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    Adecuación de una sala de microscopía para la optimización del diagnóstico en fresco de organismos cultivables en la carrera de Ingeniería en Acuicultura y pesquerías extensión bahía de Caráquez
    (Universidad Técnica de Manabí, 2011) Bernal Sabando, Juan José ; Hidalgo Chica, Lenin Stalin ; García V, María Laura
    This work was carried out in the of Engineering in Aquaculture and Fisheries career extension program, Technical University of Manabí, extension Bahía of Caráquez, under the community work modality, in order to adapt a microscope room to optimize wet mount diagnosis. The students receive lectures classes and complement am microscope practical classes or microbiology, biochemistry, bacteriology and pathology of different organisms. This work received support from the authorities of the School of Aquaculture and its staff. The development of this project was completed in eighteen months, applying the logical framework and addressing the following activities: location of the physical space, floor preparation, construction and the installation of ceramic countertops, electrical points, sinks, pipes and drains, air conditioning, and paint the laboratory demonstration - performance practice and its official presentation. The total cost of the work was $ 4128,00.
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    Diseño y adecuación del laboratorio de histología para la carrera de ingeniería en acuicultura y pesquerías (UTM), en Bahía de Caráquez
    (Universidad Técnica de Manabí, 2011) Cedeño Cedeño, Ángel Ramón ; García Bermúdez, Jesús Antonio ; López Cedeño, Wilson Javier ; Macías López, Paul Douglas ; Alcívar Alcívar, Juan
    This project was located in the extension of the Technical University of Manabí, at Leonidas Plaza, in the city of Bahia de Caráquez. The project was to design and adapt the histological laboratory in order to have a conditioned area with the technical requirements to motivate and enhance the learning of the students at the Aquaculture and Fisheries Engineer career. The development of the project took one year. The first stage was the choosing, buying and stocking of good quality materials. The second stage was to expand the area by removing a wall and making the appropriate reconstruction. After that the worktables were built with a stainless steel sink and ceramic top. Also ceramics was laved on the floor, in order to make it in an easy to clean area. Following the recommendations of an electrical engineer, the laboratory was equipped with electrical installations as well as with equipments like an 18,000 BTU air conditioner and on exhaust fan because harmful gases are used in the histological methods. Finally all the equipment was located at the respective areas. an histological technique was applied, step by step, to a commercial fish “chumumo”, Anchoa nasus,(ker and steindachner, 1867), to determine its sexual maturity. The results showed a greater proportion of females than males and also higher stages of maturity for females. After the practical histological procedures took place in the improved laboratory at the university extension of Bahia, it demonstrated its relevance for academic and professional success as well as its contribution for the development of the science and technology at this region.
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    Recolección de muestras para análisis básicos de calidad de agua en el estuario del río Chone mediante la implementación de una embarcación marítima en la carrera de acuicultura de bahía de Caráquez
    (Universidad Técnica de Manabí, 2011) Celorio Sánchez, Jorge Elizandro ; Celorio Sánchez, Miguel Alfonso ; Stopper Rojas, Marco Arturo ; Vélez Lucas, Pablo Celino ; Idrovo V, Marjorie
    In order to collect core samples for water quality in the estuary of the Chone River, launcheed a seagoing vessel for the Aquaculture Career extension program, Technical University of Manabí, Bahía of Caráquez from October 2010, to November 2011. A rescored "panga" type fiberglass boat with all the necessary modifications for the investigation, including the 48 hp outboard motor, was used to monitor the Chone River estuary to conduct quality analysis and basic studies management guidelines of the boat and outboard motor makers and training on its operation. The cost of this community work was approximately U.S. $ 11,700.00, and it took eleven months, to develop. In addition, of temperature, salinity, pH, dissolved oxygen and phytoplankton concentration water quality data for the Chone River were monitored from October 15 - 31, 2011.
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    Rediseño y acondicionamiento del laboratorio de microbiología de la Carrera de Acuicultura, Universidad Técnica de Manabí, extensión Bahía de Caráquez
    (Universidad Técnica de Manabí, 2011) Aguilar Román, María Patricia ; Ávila Aguilar, Luis Xavier ; Moreno Obando, Jessica Desirei ; Ramírez Ruiz, Luis Humberto ; Idrovo V, Marjorie
    This project was carried out for the Aquaculture career program, Technical University of Manabí in Bahía of Caráquez, in order to redesign a Laboratory of Microbiology for study, research, experimentation and teaching of the career. The cost of this redesign was approximately U.S. $ 5,875.00, the main building materials were: cement, gravel, sand, iron rods, ceramics and more. The time for the project was nine months from March to November 2011. An architectural plan was developed, the mesons were built, and the walls painted. To meet the safety standards for a laboratory, the following were installed: • Ceramic countertops and floor sweepers to facilitate cleaning of the area; • 12,000 BTU Air Conditioner with respective electrical connection and protective cage, to acclimate the microbiology laboratory; and • Walls painted with oil paint or enamel, to facilitate their cleaning and disinfection, For two weeks, sampling was performed weekly from cultured pond water to carry out microbiological analysis on TCBS agar, selective for Vibrios. The results wen, a presumptive diagnosis of Vibrio alginolyticus (5000 CFU / ml yellow) and Vibrio parahemolyticus (6000 CFU / ml blue – green) in the cultured pond water sampled, with blue – green predominating.
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    Rediseño e implementación de un laboratorio de química para la carrera de Ingeniería en Acuicultura y Pesquerías Universidad Técnica de Manabí, extensión bahía de Caráquez
    (Universidad Técnica de Manabí, 2012) Tejada González, Débora María ; Delgado Erazo, Roberto Javier ; Domínguez Sánchez, Vicente Humberto ; Saltos Paladines, Fredy Edison ; Vera, Juan Manuel
    This project was conducted in the premises of a career in engineering in aquaculture and fisheries of the Technical University of Manabí, located in the parish of Leonidas Plaza, canton Sucre province of Manabí. Consisted in redesigning and implementing the Chemistry Laboratory in order to have an area equipped with the technical requirements to motivate and improve the learning of the students of the race The development of this thesis took a year, the first stage began acquiring good quality materials. The second was to work in the implementation in this laboratory, once the inns were built, there were three sinks of stainless steel and is covered with ceramic the mesons, the floor, to facilitate cleaning of the area. Following the recommendations of an electrical engineer, the laboratory was adequate with the best facilities and electrical equipment such as: an air conditioner of 18,000 BTU and a puller of toxic gases emitted by the chemical compounds that are used in this lab. Finally the teams were placed in their respective site and applied a technique for qualitative determination of protein: protein xanto. The result seen when heated took a yellow color and by adding 1 ml of ammonia to the 25% clot and formed a precipitate yellow orange. After the test of such a technique is demonstrated the relevance of the laboratory for academic and professional practices, such as excellent contribution to the development of science and technology in this sector.
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    Biorremediación de suelos de piscinas de cultivo de camarón a través de la aplicación de microorganismos eficientes
    (Universidad Técnica de Manabí, 2014) Arteaga Arteaga, Jonathan ; Arteaga Pablo, Luis Fernando ; Roberto, Retamales
    In the study conducted at the site, Simón Bolívar, the Canton San Vicente Manabí province, during the periods of March, April and May in the bioremediation of soils through the application of effective microorganisms (bacteria) in different amounts, several results in the concentration of the physicochemical parameters; the data were treated statistically using the t test where value (p <0.05). Average values between treatments with effective microorganisms pools 1 and 2 Ammonium NH4 + P1 0.312 mg / l, ammonium NH4 + P2 3,313 mg / L, ammonia NH3 P1 0.250 mg / L, ammonia NH3 P2 0.295 mg / L nitrite NO2 P1 0.304 mg N / L, nitrite NO2-N P2 0.370 mg / L, nitrite NO2 P1 1.000 mg / L, nitrite NO2 3,991mg P2 / L, nitrate NO3-N P1 1.172 mg / L, nitrate NO3-N P2 1.502 mg / L, nitrate NO3 P1 5.118 mg / l NO3 nitrate P2 6,692 mg / l, P P1 phosphorus 1.548 mg / l, P P2 phosphorus 1.037 mg / L, P1 phosphate PO43 4,710 mg / L, phosphate PO43 P2 3,165 mg / L, Hydrogen Sulfide H2S Gas P1 0.072 mg / L, Hydrogen Sulfide H2S Gas P2 0.091 mg / L, Organic matter P1 3,192%, 2,950% Organic matter P2, P1 pH 8,623 mg / L, pH P2 8,508 mg / L. During the development of the "Bioremediation of soil pools shrimp farming through the application of effective microorganisms" it was found that if there was a significant change in the stability of the functions or ranges of certain physicochemical parameters (ammonia, nitrites, nitrates, phosphorus, hydrogen sulfide, organic matter and pH) analyzed in pools treated with the application of probiotics in different amounts.
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    Evaluación del crecimiento de dos especies de microalgas Chaetoceros Gracilis e Isochrysis galbana con dos tipos de fertilizantes agrícolas, en laboratorio
    (Universidad Técnica de Manabí, 2014) Macay García, Ana Gabriela ; Moncayo Zambrano, Ermen Miguel ; Panta Vélez, Rodolfo Patricio
    In the present study the growth of two species of microalgae Chaetoceros gracilis and Isochrysis galbana, with two types of agricultural fertilizers Stimufol and Complefol, was evaluated in laboratory. Cell density (cells/mL), specific growth rate (divisions/day) and replication rate (day) of each species in the different treatments was determined. The results show significant differences in the treatments used in cell densities and not in the specific growth rate and doubling time in both cultures of microalgae, showing that higher cell densities, specific growth rate and doubling it obtained in the middle Guillard / F2 followed by Stimufol and lower values in Complefol. Agricultural fertilizers may be a suitable alternative for use in the cultivation of microalgae, including Stimufol can reach higher than Complefol fertilizer productions.