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Влияние краткосрочной гипоксии на некоторые ростовые показатели черноморской мидии в условиях дефицита пищи IBSS Repository
Щербань, С. А.; Вялова, О. Ю..
Исследованы особенности динамики содержания белка, суммарных РНК, ДНК и индекса РНК/ДНК в тканях мидий под влиянием 1- и 4-суточной гипоксии и голодания. Показано, что содержание белка и суммарной РНК в жабрах и гепатопанксреасе снижалось в среднем на 30 - 50 % от контрольного уровня. 4-суточная гипоксия приводила к увеличению в 15,5 раз концентрации аммонийного азота в воде.
Tipo: Journal Contribution Palavras-chave: Hypoxia; Growth; Hypoxia; Growth; Http://aims.fao.org/aos/agrovoc/c_24472; Http://aims.fao.org/aos/agrovoc/c_3394.
Ano: 2001 URL: http://repository.ibss.org.ua/dspace/handle/99011/566
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Calamares omastréfidos (Cephalopoda, Ommastrephidae). OceanDocs
Brunetti, N.E.; Ivanovic, M.L.; Elena, B..
An update of the knowledge on the three most important ommastrephid species that inhabit the SW Atlantic: Illex argentinus, Martialia hyadesi and Ommastrephes bartramii, is presented. Up to the moment, only I.argentinus was intensively studied. Its distribution, population structure, reproduction, growth and paralarval development are analyzed, togheter with other aspects of its biology, such as feeding, predators and parasites. Also its utilization for human consmption is considered. Regarding M.hyadesi and O.bartrami, information on their distribution and biology is presented.
Tipo: Book Section Palavras-chave: Animal morphology; Geographical distribution; Reproduction; Fecundity; Growth; Feeding; Predators; Parasites; Population structure; Geographical distribution; Growth; Feeding; Predators; Population structure; Animal morphology; Reproduction; Fecundity; Parasites; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_2838; Http://aims.fao.org/aos/agrovoc/c_6163; Http://aims.fao.org/aos/agrovoc/c_6115; Http://aims.fao.org/aos/agrovoc/c_421; Http://aims.fao.org/aos/agrovoc/c_6507; Http://aims.fao.org/aos/agrovoc/c_15725; Http://aims.fao.org/aos/agrovoc/c_5574.
Ano: 1998 URL: http://hdl.handle.net/1834/2576
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Edad, crecimiento e influencia del ambiente en la distribución de Paralichthys patagonicus en el Sistema Costero del Atlántico Sudoccidental ( 34º-41ºS) OceanDocs
Riestra, C.M..
La edad, el crecimiento y la influencia del ambiente en la distribución estacional (invierno y primavera) de las clases de edad de Paralichthys patagonicus fueron estudiadas en el Sistema Costero del Atlántico Sudoccidental (SCAS) (34º-41ºS). Para determinar la edad se analizaron los otolitos sagittae provenientes de 1402 ejemplares colectados en otoño-invierno (n = 695) y en primavera-verano (n = 707) en campañas de investigación y desembarque comercial realizados entre el 2005 y 2009. En cada ejemplar se determinó largo total, peso, sexo. La validación de la formación de los anillos de crecimiento se realizó mediante el análisis mensual del borde del otolito. La precisión de las lecturas se evaluó a través del índice de precisión, coeficiente de...
Tipo: Theses and Dissertations Palavras-chave: Age determination; Growth; Environmental conditions; Geographical distribution; Coastal waters; Geographical distribution; Age determination; Growth; Coastal waters; Environmental conditions; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_24110; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_25205; Http://aims.fao.org/aos/agrovoc/c_32980.
Ano: 2010 URL: http://hdl.handle.net/1834/4065
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Poliploidia en moluscos de importancia comercial (almeja catarina Argopecten ventricosus Sowerby ii, 1842; almeja mano de leon Nodipecten subnodosus Sowerby 1835; y abulón rojo Haliotis rufescens Swainson 1822) OceanDocs
Maldonado, R..
La poliploidía ha sido una de las biotecnologías más empleadas en la ultima década para el mejoramiento genético de moluscos bivalvos por ser una de las mejores alternativas a corto plazo para incrementar la producción. Los organismos triploides presentan tres juegos completos de cromosomas homólogos que afectan la sinapsis, lo cual da como resultado una esterilidad parcial o total, la cual teóricamente repercute favorablemente en el crecimiento. Sin embargo, la inducción a la triploidía presenta algunos problemas que podrían resolverse con la disponibilidad de tetraploides para producir triploides biológicos. En este trabajo se presentan los resultados del desarrollo de biotecnologías de poliploidía en tres especies de moluscos nativos al noroeste de...
Tipo: Theses and Dissertations Palavras-chave: 968; Marine molluscs; Genetics; Growth; Genetics; Growth; Http://aims.fao.org/aos/agrovoc/c_3222; Http://aims.fao.org/aos/agrovoc/c_3394.
Ano: 2003 URL: http://hdl.handle.net/1834/3431
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Preliminary study of age, growth and birthdates of juvenile sardine <Sardina pilchardus> (Walbaum, 1792) and European anchovy Engraulis encrasicolus (Linnaeus, 1758) in the east coast of Tunisia OceanDocs
Khemiri, S.; Gaamour, A..
The microstructures of the otoliths of juvenile sardines (Sardina pilchardus) and anchovies (Engraulis encrasicolus), collected in the East coast of Tunisia, were analyzed in order to estimate age, daily growth and hatch date. The fork length of sardines varied from 48 to 103 mm and estimated age ranged from 105 to 297 days. For the anchovies, the estimated age ranged from 79 to 300 days and the fork length from 42 to 86 mm. The length-age data of both species were fitted to the laird-Gompertz model. The corresponding growth equations were [lt=10.8 exp(2.74(1-exp(-0.006t)))] for sardines and [lt=3.1 exp(3.2(1-exp(-0.02t)))] for anchovies. The instantaneous growth rates of the juvenile of both species in the East of Tunisia were in agreement with the data...
Tipo: Journal Contribution Palavras-chave: Age determination; Daily; Growth; Hatching; Microstructure; Otoliths; Population structure; Age determination; Growth; Otoliths; Population structure; Hatching; Http://aims.fao.org/aos/agrovoc/c_24110; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_27091; Http://aims.fao.org/aos/agrovoc/c_6115; Http://aims.fao.org/aos/agrovoc/c_3504.
Ano: 2005 URL: http://hdl.handle.net/1834/3797
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Estudio de edad y crecimiento del besugo Pagrus pagrus del sector costero bonaerense OceanDocs
Cotrina, C.P.; Raimondo, M.C..
The samples analyzed for growth parameters determination both in length and weight of the red porgy Pagrus pagrus corresponded to the years 1972 up to 1981 and to two areas of the Buenos Aires (Argentina)coastal shelf: a northern one (35°-36°S)and a southern one (39°-40°). Through age determination, based on the countdown of rings in scales, the parameters of the von Bertalanffy growth equation for the two mentioned areas were estimated as follows: 1)northern area:Lý=44.7;k=0.154;to=-2.96, and 2)southern area:Lý=49.9;k=0.153;to=-2.81. The results shown that the infinite length of the red porgy from the southern area was the greatest. The maximum likelihood method permitted to calculate, for each region,the three parameters and the respective confidence...
Tipo: Journal Contribution Palavras-chave: Age determination; Growth; Length-weight relationships; Age determination; Growth; Http://aims.fao.org/aos/agrovoc/c_24110; Http://aims.fao.org/aos/agrovoc/c_3394.
Ano: 1997 URL: http://hdl.handle.net/1834/1937
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Cultivo experimental de dos esponjas marinas en condiciones de laboratorio OceanDocs
Sánchez-M., H..
Dos especies de esponjas, Desmapsamma anchorata (Cárter. 1882) y Aplysina fistularis insularis (Duch. y Mich., 1864) fueron observadas y recolectadas en la región de Santa Marta (Caribe colombiano). Dichas esponjas presentan características especiales como un rápido crecimiento de fijación en la primera y reproducción asexual por gemación en la segunda. Estos procesos fueron aprovechados para cultivarlas sobre portaobjetos y paralelamente observar su comportamiento en condiciones de laboratorio y a diferentes exposiciones de luz.
Tipo: Journal Contribution Palavras-chave: Sponges; Growth; Asexual reproduction; Growth; Asexual reproduction; Sponges; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_664; Http://aims.fao.org/aos/agrovoc/c_7321.
Ano: 1984 URL: http://hdl.handle.net/1834/4030
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Pulpos octopódidos (Cephalopoda, Octopodidae). OceanDocs
Re, M.E..
Four species of the family Octopodidae were reported to occur along the Argentine coast Octopus tehuelchus, Eledone massyae, Enteroctopus megalocyathus and Robsonella fontaniana. The first two are distributed from Brazil to south of Rawson and San Jorge Gulf, respectively, in warm-temperate waters. E.megalocyathus and R.fontaniana are of Subantarctic origin, the first ranging from San Matias Gulf to Magellan Strait, the Beagle Channel and Malvinas Islands; R.fontaniana is distributed from San Matias Gulf southwards, with records in North Patagonian and San Jorge Gulfs, Chile and Peru. A synopsis of information about taxonomical status, patterns of geographic distribution and biological aspects of these four coastal octopodids is given.
Tipo: Book Section Palavras-chave: Animal morphology; Feeding; Geographical distribution; Growth; Life cycle; Parasites; Reproduction; Feeding; Geographical distribution; Growth; Animal morphology; Life cycle; Parasites; Reproduction; Http://aims.fao.org/aos/agrovoc/c_2838; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_421; Http://aims.fao.org/aos/agrovoc/c_4317; Http://aims.fao.org/aos/agrovoc/c_5574; Http://aims.fao.org/aos/agrovoc/c_6507.
Ano: 1998 URL: http://hdl.handle.net/1834/2583
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Análisis del crecimiento y la mortalidad de Anisotremus interruptus (Gill) (Perciformes: Haemulidae) en la Costa de Colima, México OceanDocs
Espino-Barr, E.; Gallardo-Cabello, M.; González-Orozco, F..
This paper deals with the growth and mortality analysis of the burrito grunt Anisotremus interruptus on the coast of Colima, México. The estimated growth parameters are: L ¥ = 50.59 cm; W ¥ = 5,051.04 g; k = 0.147 years-1; to = -0.916 years; A0.95 = 19.46 years. Most of the growth occurred during the first year of life, when the grunt grows 12.52 cm, the second year it grows 4.95 cm and the third, 4.60 cm. The highest value of the condition index took place between February and September. The total mortality rate (Z) was calculated as 0.53 years-1. These values are basic for the plan of administration of the fishery of this species.
Tipo: Journal Contribution Palavras-chave: Growth; Mortality; Growth; Mortality; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_4945.
Ano: 2004 URL: http://hdl.handle.net/1834/3060
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Relation entre la densite des microstries et le rayon de l'otolithe compatible avec le modele de von Bertanlanffy: application a Lutjanus sebae (Cuvier, 1828) aux Seychelles OceanDocs
Chauvelon, P.; Bach, P..
The age study of fishes using daily growth increments DGI observations is made from: 1- either the exhaustive determination of increments, 2- or the calculation of daily growth increments density for different otolith zones between the nucleus and the margin edge of otolith, the width of increments being presumed constant for each zone. To apply the first method, increments may be readable individually from the nucleus to the margin edge of otolith. This is a very time consuming operation. It can cause miscalculation of increments and errors of the age estimation. The second method, called "DGI density method" is based on the decrease of the increment width in relation to the slowing down of the growth phenomena. The more used approach according to this...
Tipo: Report Palavras-chave: LUTJANUS SEBAE; Age determination; Growth; Methodology; Otolith reading; Age determination; Growth; Methodology; Http://aims.fao.org/aos/agrovoc/c_24110; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_12522.
Ano: 1994 URL: http://hdl.handle.net/1834/1315
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Presencia de tubos Calcáreos biogénicos en la estructura del coral Madracis myriaster (Scleractinia: Pocilloporidae) de aguas profundas en el Caribe colombiano. OceanDocs
López, N.; Santodomingo, N.; Reyes, J..
A large number of branches from the scleractinian coral Madracis myriaster, collected in deep waters of the Colombian Caribbean, showed both inside and around the skeleton calcareous structures constructed by tubiculous organisms. Here, based on the growth strategy of the coral and the physical conditions of deep-water areas, we describe the functional effect of the tube structures on deep coral frameworks formation and growth.
Tipo: Journal Contribution Palavras-chave: Deep water; Growth; Growth; Http://aims.fao.org/aos/agrovoc/c_3394.
Ano: 2008 URL: http://hdl.handle.net/1834/3513
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Impact de l'érosion côtière et éléments d'étude de vulnérabilité : example du Togo (Golfe de Guinée) OceanDocs
Blivi, A.B..
La morphodynamique côtière permet d'analyser les séquences de plages réflexives et dissipatrices des côtes sablonneuses. Les ouvrages maritimes perturbent le mécanisme hydro-sédimentaire et déclenchent l'érosion côtière dont les impacts de recul sont généralement assez forts, notamment de 12 m/an sur le segment de 5 km de côte, à l'est du système d'infrastructures portuaires de Cotonou, au Bénin, et de 5 à 10 m/an sur environ 30 km de côte, au Togo. Cette caractérisation morphodynamique de plage, aussi bien à court qu'à long terme, est en réponse aux variations significatives du bilan sédimentaire dont les conséquences ' sont très importantes du fait de l'utilisation de l'espace pour des activités industrielles et urbaines très variées et de la forte...
Tipo: Journal Contribution Palavras-chave: COASTAL EROSION; Coastal zone; Growth; Population dynamics; Population number; Growth; Population dynamics; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_6111.
Ano: 2001 URL: http://hdl.handle.net/1834/1236
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Estudio preliminar sobre la estructura de edades y el crecimiento de la pescadilla de red (Cynoscion guatucupa, Pisces, Sciaenidae) en el área sur de la provincia de Buenos Aires OceanDocs
Ruarte, C.O.; Sáez, M.B..
Otoliths reading of specimens derived from research cruises carried out in the south of the Province of Buenos Aires (39°S-41°S), Argentine Sea, in 1998 and 1999 allowed to determine stripped weakfish (Cynoscion guatucupa, Pisces, Sciaenidae) age and growth.
Tipo: Journal Contribution Palavras-chave: Age determination; Growth; Otoliths; Age determination; Growth; Otoliths; Http://aims.fao.org/aos/agrovoc/c_24110; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_27091.
Ano: 2008 URL: http://hdl.handle.net/1834/3144
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Evaluación del crecimiento de Pargo Canane Ocyurus chrysurus y Biajaiba Lutjanus synagris cultivadas en jaulas flotantes en la costa de Lerma, Campeche, México OceanDocs
García Torcuato, R.; Cervantes Trujano, M.; Ancona Ordaz, A..
Among the marine species more quoted in the coasts of Campeche in the Gulf of Mexico, we can found the pargo canane (Ocyurus chrysurus) and the biajaiba (Lutjanus synagris), that have a great demand in the national and regional market. In the installations of the Technological Institute of Lerma, has developed growing of O. chrysurus and L. synagris in floating cages, until this moment growing of these specie has been never carried out. In this work we carried out an evaluation of the growth of O. chrysurus and L. synagris at three different culture densities, in floating cages with volume of 1.5 m3. We conclude that O. chrysurus presents a greater growth rate for length and biomass (27.6 and 99.28%) with regard to L. synagris (18.99 and 76.81). The growth...
Tipo: Proceedings Paper Palavras-chave: Marine aquaculture; Cage culture; Growth; Cage culture; Growth; Http://aims.fao.org/aos/agrovoc/c_25190; Http://aims.fao.org/aos/agrovoc/c_3394.
Ano: 2006 URL: http://hdl.handle.net/1834/2074
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Age et croîssance du chinchard à quelque jaune (trachurus méditerraneus) dans la région nord de la Tunisie OceanDocs
Fezzani Serbaji, S.; Chemmam-A, B.; Ben Salem, M..
Le chinchard à queue jaune est un Carangidae qui fait l’objet d’une exploitation par les différents types de pêche le long des côtes tunisiennes. Dans le présent travail on se propose d’étudier l’âge et la croissance sur la base de la distribution des fréquences de taille dans la région Nord de la Tunisie. La décomposition de ces fréquences de taille est réalisée suivant la méthode de Battacharya (1967). Deux périodes sont considérées, la première correspond à l’année 1998 et la seconde s’étale entre Novembre -1999 et Décembre -2000. Pour la première période, 6 classes d’âges ont pu être identifiées alors que pour la seconde cette valeur est de 7. Les équations de croissance linéaire annuelle suivant le modèle Von Bertalanffy (1938) ont été établies.
Tipo: Journal Contribution Palavras-chave: Trachurus mediterraneus; Age; Age composition; Frequency; Growth; Population structure; Size distribution; Horse mackerel fisheries; Age composition; Growth; Population structure; Age; Http://aims.fao.org/aos/agrovoc/c_29093; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_6115; Http://aims.fao.org/aos/agrovoc/c_186.
Ano: 2006 URL: http://hdl.handle.net/1834/4276
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Age et croissance de <Pagrus caeruleostictus> (Valenciennes,1830) des côtes de Nouakchott OceanDocs
Dia, M.; Ghorbel, M.; Kone, Y.; Bouaîn, A..
L’étude de la croissance de Pagrus caeruleostictus des côtes de Nouakchott (Mauritanie) a été réalisée par scalimétrie. L’analyse des variations mensuelles de l’allongement marginal (A.M.) a permis de montrer que la période d’apparition des anneaux d’arrêt de croissance est située en février. Par rétro-calcul, nous avons déterminé la longueur à la fourche (LF) à l’apparition de chaque anneau d’arrêt de croissance en utilisant la relation liant la longueur du poisson au rayon de l’écaille. L’application du modèle de Von Bertalanffy sur ces longueurs, a permis d’obtenir les paramètres de la croissance moyenne en longueur et en masse de l’espèce pour les 2 sexes pris séparément. Ce modèle s’applique bien à la croissance de ce poisson du fait que les valeurs...
Tipo: Journal Contribution Palavras-chave: Scalimétrie; Age; Growth; Growth; Age; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_186.
Ano: 2001 URL: http://hdl.handle.net/1834/3687
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Características estructurales y funcionales del Manglar de Avicennia germinans en la Bahía de Chengue (Caribe colombiano) OceanDocs
Rodríguez-Ramírez, A.; Nivia-Ruíz, J.; Garzón-Ferreira, J..
Within the framework of the CARICOMP(Caribbean Coastal Marine Productivity) monitoring program, a study of the Avicennia germinans mangrove formation of Chengue bay (Tayrona Natural Park, Colombia) was performed between June 1995 and July 1996, based on the evaluation of structural and functional characteristics at three monitoring plots (10 x 10 m). The structure of the studied formation is coincident with that of fringing forests of the Caribbean region in having small trees (dbh=11.3 cm, total height=6.3 m) and high densities (16.3 trunks/0.01 ha). During the monitored period there was a low mortality rate (0.7 trees/year) and there were significant increases of the circumferences at breast height (as well as of the variables derived from this measure)....
Tipo: Journal Contribution Palavras-chave: Population structure; Growth; Mangroves; Population structure; Growth; Mangroves; Http://aims.fao.org/aos/agrovoc/c_6115; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_16190.
Ano: 2004 URL: http://hdl.handle.net/1834/3081
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Crecimiento de scenedesmus quadricauda en efluentes cloacales de la ciudad de Trelew, Chubut, Argentina OceanDocs
Méndez Suaza, L.; Albarracín, I.; Cravero, M.; Salomón, R..
La creciente problemática frente al tratamiento de aguas residuales y su posible reuso ha planteado sistemas biológicos que remuevan los contaminantes manteniendo el ecosistema y disminuyendo costos. Este trabajo consiste en un ensayo de biorremediación evaluando la tasa de crecimiento de Scenedesmus quadricauda cultivada en efluentes domiciliarios de la ciudad de Trelew, Chubut, Argentina. Diariamente se determina conductividad, pH y densidad celular. Al inicio y al final de ensayo se obtienen valores para fosfato, fósforo total, sulfuro, amoníaco, nitrito, nitrato, detergentes, DBO5, DQO y número más probable de coliformes totales y fecales. Se observa una disminución en amoníaco, fósforo, fósforo total, DBO5 y DQO lo que confirma la efectividad en la...
Tipo: Preprint Palavras-chave: Growth; Waste water; Water purification; Growth; Waste water; Water purification; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_24927; Http://aims.fao.org/aos/agrovoc/c_34145.
Ano: 2010 URL: http://hdl.handle.net/1834/3639
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Fijación y crecimiento del ostión de mangle Ostrea columbiensis (Hanley) 1946 a nivel de cultivo OceanDocs
Yoong, F.; Reinoso, B..
The present study was carried out in samples of Ostrea columbiensis (Hanley) taken from the estero ”Las Alforjas”, during de period between march-december of 1989. Three stations were selected in the estero, in order to observe the fixation, growth and survival of the larvae in special collectors designed by the authors. The percentage of fixation in the station 1 was 25,8%, in the station 2, 37,8% and in the station 3, 36,4%. The larvae oyster got fixed, preferably, by the external face of the collector (big valve) in a percentage of 64,3, while on the external face this percentage was 35,7%. The average height of the oysters during the whole period of study was 52 mm, with a monthly increment of 5,2 mm. The percentage of the oysters survival was 84,4%....
Tipo: Journal Contribution Palavras-chave: Ostrea columbiensis; Mollusc culture; Growth; Larval development; Survival; Mollusc culture; Growth; Survival; Http://aims.fao.org/aos/agrovoc/c_4896; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_7538.
Ano: 1993 URL: http://hdl.handle.net/1834/3053
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Estimación de los parámetros de crecimiento y reproducción de la sardina (Sardinella aurita) del Sureste de la Isla de Margarita, Venezuela OceanDocs
Tagliafico, A.; González, L.W.; Eslava, N..
En Venezuela, la sardina (Sardinella aurita) es considerada un recurso estratégico por representar una fuente protéica de bajo costo y sustentar la pesquería artesanal de mayor importancia socio-económica el país. Por tal razón, los objetivos del presente trabajo fueron estimar los parámetros de crecimiento y aspectos reproductivos para contribuir a la evaluación y manejo de la pesquería de la sardina. Se colectaron 3960 individuos mediante muestreos mensuales de las capturas realizadas con chinchorro sardinero en el sureste de la Isla de Margarita, entre enero y diciembre de 2003. La longitud asintótica (L∞=26 cm) y el coeficiente de crecimiento (K=1.1 año-1) fueron estimados usando la rutina ELEFAN I del paquete FiSAT, conduciendo a un valor de índice de...
Tipo: Journal Contribution Palavras-chave: Growth; Reproduction; Growth; Reproduction; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_6507.
Ano: 2008 URL: http://hdl.handle.net/1834/3483
Registros recuperados: 58
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