scholarly journals Horizontal and diel vertical distribution of eggs and larvae of two clupeoid fish (Etrumeus teres and Sardinops melanostictus)

2002 ◽  
Vol 68 (sup1) ◽  
pp. 435-436 ◽  
Author(s):  
SHINJI UEHARA ◽  
TAKUMI MITANI
Keyword(s):  
Vertical Distribution ◽  
Etrumeus Teres ◽  
Eggs And Larvae ◽  
Clupeoid Fish ◽  
Diel Vertical Distribution

Diel vertical distribution ofAnguilla japonica leptocephali

1998 ◽  
Vol 45 (2) ◽  
pp. 208-211 ◽  
Author(s):  
Tsuguo Otake ◽  
Tadashi Inagaki ◽  
Hiroshi Hasumoto ◽  
Noritaka Mochioka ◽  
Katsumi Tsukamoto
Keyword(s):  
Vertical Distribution ◽  
Diel Vertical Distribution

scholarly journals ANALYSIS OF THE VERTICAL DISTRIBUTION OF THE ABUNDANCE OF SMALL PELAGIC FISH LARVAE IN THE GULF OF CALIFORNIA USING SUBMARINE VIDEOCAMERAS

2009 ◽  
Vol 24 (2) ◽  
pp. 153
Author(s):  
G. Aceves-Medina ◽  
C. J. Robinson ◽  
R. Palomares-García ◽  
J. Gómez-Gutierrez
Keyword(s):  
Vertical Distribution ◽  
Gulf Of California ◽  
Fish Larvae ◽  
Pelagic Fish ◽  
Small Pelagic Fish ◽  
Sardinops Sagax ◽  
Etrumeus Teres ◽  
Engraulis Mordax ◽  
The Vertical Distribution

Análisis de la distribucion vertical de la abundancia de larvas de peces pelágicos menores en el Golfo de California mediante videocámaras submarinas Se utilizaron dos tipos de videocámaras submarinas para estudiar la distribución y abundancia vertical de larvas de los peces pelágicos menores Engraulis mordax, Etrumeus teres y Sardinops sagax a 1 m de resolución, en una localidad en el norte del Golfo de California con condiciones de calma y alta densidad de sardinas adultas. La mayor abundancia promedio (900 larvas m -1 min -1 ) se encontró inmediatamente arriba de la termoclina (33 m) y la picnoclina (36 m), aparentemente no asociada al máximo de clorofila detectado en superficie, ni a la mayor densidad de peces adultos (10 -20 m). Las observaciones con video permitieron determinar la distribución vertical a una resolución imposible de obtener mediante muestreos con redes; sin embargo, esta es una técnica poco útil en zonas con elevada velocidad de las corrientes.

scholarly journals Vertical distribution of eggs and larvae of Maurolicus japonicus (Sternoptychidae, Pisces) in Tosa Bay, Japan

2019 ◽  
Vol 14 (2) ◽  
pp. 80-85
Author(s):  
Liezel C. Paraboles ◽  
Donna M. Guarte ◽  
Izumi Kinoshita
Keyword(s):  
Vertical Distribution ◽  
Tosa Bay ◽  
Eggs And Larvae

Vertical distribution of pilchard (Sardinops sagax) eggs and larvae off Southern Australia

1999 ◽  
Vol 50 (2) ◽  
pp. 117 ◽  
Author(s):  
W. J. Fletcher
Keyword(s):  
Vertical Distribution ◽  
Accurate Estimation ◽  
Relative Depth ◽  
Sardinops Sagax ◽  
Bottom Depth ◽  
Shelf Region ◽  
Opening And Closing ◽  
Egg Stages ◽  
Eggs And Larvae ◽  
Egg Abundance

Plankton samples were obtained from four to six discrete depths at 33 stations in July 1994 by using the ‘EZ’ multiple opening and closing net during a cruise along the shelf region from Adelaide to Albany, southern Australia. At the 19 stations (88 tows) where pilchard eggs were common, recently spawned eggs were most abundant at depths of 40–60 m, or 60% of total bottom depth. Most older egg stages were found closer to, or at, the surface. During day-time, most pilchard larvae were caught at the surface. At night, pilchard larvae appeared to spread out, with lower overall rates of capture but a bigger proportion caught below the surface. The effects of these changes in relative depth with age are discussed in relation to the accurate estimation pilchard egg abundance for biomass calculations.

Diel vertical distribution of the larvaceanOikopleura dioicain a North Patagonian tidal frontal system (42°–45°S) of the SW Atlantic Ocean

2015 ◽  
Vol 11 (6) ◽  
pp. 633-643 ◽  
Author(s):  
Mariela Spinelli ◽  
Carla Derisio ◽  
Patricia Martos ◽  
Marcelo Pájaro ◽  
Graciela Esnal ◽  
...  
Keyword(s):  
Atlantic Ocean ◽  
Vertical Distribution ◽  
Frontal System ◽  
Sw Atlantic ◽  
Diel Vertical Distribution

scholarly journals Buoyancy and vertical distribution of Norwegian coastal cod (Gadus morhua) eggs from different areas along the coast

2008 ◽  
Vol 65 (7) ◽  
pp. 1198-1202 ◽  
Author(s):  
Erling Kåre Stenevik ◽  
Svein Sundby ◽  
Ann Lisbeth Agnalt
Keyword(s):  
Vertical Distribution ◽  
Density Gradient ◽  
Surface Waters ◽  
Gadus Morhua ◽  
Genetic Differences ◽  
Marine Science ◽  
Norwegian Coast ◽  
Spawning Areas ◽  
Subsurface Waters ◽  
Eggs And Larvae

Abstract Stenevik, E. K., Sundby, S., and Agnalt, A. L. 2008. Buoyancy and vertical distribution of Norwegian coastal cod (Gadus morhua) eggs from different areas along the coast. – ICES Journal of Marine Science, 65: 1198–1202. There are significant genetic differences in coastal cod (Gadus morhua) along the Norwegian coast, and in order to maintain these differences, there must be mechanisms that ensure local retention of eggs and larvae in the spawning areas. The buoyancy of eggs from four different areas along the Norwegian coast was measured using a density gradient column, and the results from modelling experiments showed that in three of the groups (Tysfjord, Helgeland, and Øygarden), the buoyancy in combination with local hydrography would place the eggs in subsurface waters where retention is greater than in surface waters.

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