Consulta: subjectFacets:"Ichthyoplankton surveys"
Registros recuperados: 7
Data/hora: 13/06/2024 05:47:40

Eggs and larvae of fishes and their role in systematic investigations in fisheries.
Provedor de dados: 5
The stages of fishes that are discussed in this conference are those that are collected by hauling plankton nets in the oceans. These are the eggs, larvae and less frequently the juveniles of marine fishes. There are three principal reasons why ichthyoplankton surveys are made. Firstly, the surveys are often directed toward a single target species in order to use the distribution and abundance of the pelagic eggs to obtain an estimate of the biomass of the adult spawning population. Secondly, the larvae of a target species are studied in order to estimate the success of the year brood resulting from its spawn and hopefully to understand the factors underlying fluctuations in survival. The third reason is to use ichthyoplankton surveys to evaluate fish...
Tipo: Text
Palavras-chave: Fishery biology; Ichthyoplankton surveys.
Ano: 1976
URL: http://archimer.ifremer.fr/doc/1976/publication-1996.pdf

Composición, abundancia y distribución del ictioplancton alrededor de las Islas Malvinas, desde 1996 hasta 2003
Provedor de dados: 20
Autores: Schenone, N. F.; Navarro, C.
Se presenta la composicion, abundancia y distribucion del ictioplancton obtenido en la campana del BIP Dr. Eduardo L. Holmberg EH-04 04 03 realizada en octubre de 2003  Instituto Nacional de Investigacion y Desarrollo Pesquero INIDEP, Argentina). Se efectua una comparacion con datos obtenidos en otras campanas realizadas en la zona alrededor de las Islas Malvinas  Argentina, Atlantico SO , en primavera desde 1996 hasta 2003. Se describe la variacion de la extension de las areas de puestas y cria en los distintos anos. Se han identificado huevos de peces en el 42 por ciento de las muestras que pertenecen a Coelorynchus fasciatus, Micromesistius australis, Salilota australis y Sprattus fueguensis y larvas en el 75 porciento de las muestras, pertenecientes a...
Tipo: Theses and Dissertations
Palavras-chave: Abundance; Eggs; Fish larvae; Geographical distribution; Ichthyoplankton surveys; Identification keys.
Ano: 2004
URL: http://hdl.handle.net/1834/5783

Detección de un área de cría de la merluza de cola (Macruronus magellanicus)en el Mar Argentino.
Provedor de dados: 20
Autores: Machinandiarena, L.; Ehrlich, M.D.
This is the first report of a longtail hake (Macruronus magellanicus)nursery ground. The results of more than ten research cruises conducted since 1990 in the southern patagonian shelf are presented in this study. The nursery ground (52°S to 55°30'S)was detected by the presence of larvae between 5.60 to 12.80 mm of standard length in November and December in that area, with depth ranging from 90 to 160 m.
Tipo: Journal Contribution
Palavras-chave: Fish larvae; Nursery grounds; Ichthyoplankton surveys; Fish larvae; Nursery grounds; Http://aims.fao.org/aos/agrovoc/c_2924; Http://aims.fao.org/aos/agrovoc/c_25438.
Ano: 1999
URL: http://hdl.handle.net/1834/1877

Importancia de diferentes taxa de copepodos en la dieta de los adultos de anchoita (Engraulis anchoita) bonaerense durante la época reproductiva
Provedor de dados: 20
Autores: Padovani, L.
Engraulis anchoita is the most abundant and widespread ichthic species in the SW Atlantic. Two populations of the species occur in the Argentine Sea, a northern one or Bonaerense (34 degree -41 degree S)and a southern one or Patagonian (41 degree -47 degree S). The former performs an annual migratory cycle which includes the concentration in the northern area in winter, the distribution in coastal waters off Buenos Aires prov. during spring spawning period and the concentration in the shelf feeding ground in summer. In this work the feeding habits of the northern population were studied in its spring habitat. Fish samples were obtained in 16 stations from the Buenos Aires prov. shelf, during a research cruise of the INIDEP (National Institute for Fisheries...
Tipo: Theses and Dissertations
Palavras-chave: Abundance; Environmental conditions; Feeding behaviour; Food preferences; Stomach content; Zooplankton; Ichthyoplankton surveys; Feeding behaviour; Food preferences; Zooplankton; Environmental conditions; Http://aims.fao.org/aos/agrovoc/c_10778; Http://aims.fao.org/aos/agrovoc/c_3024; Http://aims.fao.org/aos/agrovoc/c_15490; Http://aims.fao.org/aos/agrovoc/c_32980.
Ano: 2006
URL: http://hdl.handle.net/1834/2600

A drift study of vertical distribution and mortality of Engraulis anchoita eggs and larvae.
Provedor de dados: 20
Autores: Sánchez, R.P.; de Ciechomski, J.D.; Lasta, C.A.; Guerrero, R.A.
Lagrangian changes in distribution and survival within an anchovy egg and larvae patch were studied by means of multiple opening/closing sampling following a free drifting buoy. The buoy was equipped with a radar reflector and flashing light, and it was connected to a current cross drogue floating at 15 m depth, which corresponded to the main egg and larvae concentration within the patch. The drifter was launched on the Buenos Aires continental shelf, off Necochea during the spring spawning peak of 1983. Three discrete depths (within, below and above the thermocline)were repeatedly sampled close to the drogue with a Motoda sampler. Egg and larval abundances in the vicinity of the drogue were monitored at 3/4 hour intervals for a period of three days. Each...
Tipo: Journal Contribution
Palavras-chave: Fish larvae; Fish eggs; Vertical migrations; Feeding; Environmental effects; Ichthyoplankton surveys; Vertical distribution; Survival; Abundance; Drifting data buoys; Fishery surveys; Feeding; Fish larvae; Survival; Http://aims.fao.org/aos/agrovoc/c_2838; Http://aims.fao.org/aos/agrovoc/c_2924; Http://aims.fao.org/aos/agrovoc/c_7538.
Ano: 1999
URL: http://hdl.handle.net/1834/1871

Abundancia del ictioplancton frente a las costas de Esmeraldas, Punta Galera y Puerto López  durante el 2008
Provedor de dados: 20
Autores: Lindao, J.; Calderon, G.
Entre abril y diciembre de 2008, en las estaciones fijas frente a las zonas de Esmeraldas, Punta Galera y Puerto López, se identificaron un total de 95 241 huevos de peces los mismos que pertenecieron  a  10 órdenes, 31 familias, 35 géneros, 7 especies y organismos en sus primeras fases (fase mórula), de los cuales la Familia SCIAENIDAE fue la mas abundante; mientras que el número de larvas obtenidas  fue  83 735;  que pertenecieron a 19 órdenes, 56 familias, 83 géneros,  21 especies y organismos en estadios de prelarvas siendo la especie Bregmacero bathymaster la mas abundante durante los meses de muestreo. De los análisis  cualitativos y cuantitativos,  el  2008 registró menor densidad y variedad de especies ictioplanctónicas, a lo reportado en el  2006...
Tipo: Journal Contribution
Palavras-chave: Ichthyoplankton surveys; Fixed stations; Fish eggs; Distribution; Density (population).
Ano: 2009
URL: http://hdl.handle.net/1834/4788

Análisis de la distribución y abundancia del ictioplancton en el Golfo San Matías en setiembre de 1993
Provedor de dados: 20
Autores: Rodríguez Gil, S.G.; Serafini, R.; Bordino, P.
Tipo: Theses and Dissertations
Palavras-chave: Ichthyoplankton surveys; Fish larvae; Fish eggs; Abundance; Fish larvae; Http://aims.fao.org/aos/agrovoc/c_2924.
Ano: 1994
URL: http://hdl.handle.net/1834/3875