Diel differences in avoidance of three vertical profile sampling gears by herring larvae

Brander, Keith; Thompson, A. B.

doi:10.1093/plankt/11.4.775

Cited by 43 publications

(18 citation statements)

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“…Apart from diurnal variation in vertical distribution, the other major source of variation in the analysis related to a greater abundance of larvae collected at night compared to daytime. The collection of greater numbers of fish larvae at night is a common phenomenon and is usually attributed to greater net avoidance during daytime (Bridger 1956, Brander & Thompson 1989, Davis et al 1990). Net avoidance during the day is probably more pronounced in larger larvae (Bridger 1956, Brander & Thompson 1989.…”

Section: Daymentioning

confidence: 99%

“…The collection of greater numbers of fish larvae at night is a common phenomenon and is usually attributed to greater net avoidance during daytime (Bridger 1956, Brander & Thompson 1989, Davis et al 1990). Net avoidance during the day is probably more pronounced in larger larvae (Bridger 1956, Brander & Thompson 1989. If net avoidance was significant during the day in our study, then the pattern of stratification we found would be conservative relative to the actual pattern, because net avoidance would be expected to be greater near the surface where more light was available.…”

Section: Daymentioning

confidence: 99%

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Diurnal and tidal vertical migration of pre-settlement King George whiting Sillaginodes punctata in relation to feeding and vertical distribution of prey in a temperate bay

Jenkins¹,

Welsford²,

Keough³

et al. 1998

Mar. Ecol. Prog. Ser.

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Vertically stratified sampling was undertaken for pre-settlement K n g George whiting Sillaglnodespunctata at 1 site in 1995 and 4 sites in 1996, in Port Phillip Bay, Australia. In 1995, 3 depth strata were sampled: surface, 2.5-3.0 m, and 5.0-5.5 m, in a total water depth of 7 to 8 m. Samphng was conducted on 17 dates and encon~passed all combinations of day and night, and ebb and flood tide. A total of 3, or in one case 4, replicate samples were taken at each depth. On 4 occasions a smaller zooplankton net was deployed at the same time as the ichthyoplankton net. Pre-settlement S. punctata showed 'reverse' &urnal vertical migration, with concentration near the surface during the day and diffusion through the water column at night. A much weaker tidal migration was also detected, with larvae slightly higher in the water column on flood tides. Pre-settlement S. punctata only fed in daylight and zooplankton taxa that were eaten did not show vertical stratification during daytime. In 1996. 4 sites were sampled at a minimum of 10 m depth, and an additional depth stratum, 7.5-8.0 m, was sampled. Smaller numbers of larvae were collected in 1996 compared with 1995. All larvae collected in daytlme were in the surface stratum, whilst at mght larvae were spread through the water column. Although diurnal vertical migration was not a response to prey migrations, daytime ascent of larvae may have occurred to find adequate light levels for visual predation. The generality of tidal migration is unclear, and may have been a result of local factors. Both diurnal and tidal migration would be expected to strongly influence transport of pre-settlement S. punctata to seagrass beds in Port Phillip Bay.

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Section: Daymentioning

confidence: 99%

Section: Daymentioning

confidence: 99%

Diurnal and tidal vertical migration of pre-settlement King George whiting Sillaginodes punctata in relation to feeding and vertical distribution of prey in a temperate bay

Jenkins¹,

Welsford²,

Keough³

et al. 1998

Mar. Ecol. Prog. Ser.

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“…Active avoidance of nets by larvae and juveniles is now well documented (e.g. Murphy & Clutter 1972, Smith & Richardson 1977, Clarke 1983, Brander & Thompson 1989, Heath & Dunn 1990. Avoidance problems are compounded by a tendency for individuals to become rarer, and more patchily distributed, with increasing size (Hewitt & Methot 1982).…”

Section: Introductionmentioning

confidence: 99%

Evaluating the performance of light traps for sampling small fish and squid in open waters of the central Great Barrier Reef lagoon

Thorrold¹

1992

Mar. Ecol. Prog. Ser.

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Light traps were used to sample small fish and squid from open waters in the central Great Barrier Reef lagoon. A total of 7203 fish, representing some 38 families, and 706 lologinid squid were caught during sampling periods October to January, 1988 to 1990. The fish catch was dominated by the family Pomacentridae (63 % of fish collected), with lower numbers of lethrinids (6.7 %), clupeids (6.3 %), mullids (3.8 %), and scombrids (2.7 %). Size-frequencies of the fish collected indicated that the light traps sampled late-stage larvae and pelagic juveniles exclusively. No effect of time of night on catch rate was detected. Light traps that were allowed to drift with prevailing water currents caught more fish than anchored traps; this unexpected result may be a function of the effect of current velocity on trap efficiency. Analysis of standard errorkample size curves suggested that optimum replication was achieved with 5 to 6 traps, but that reasonable precision could be obtained with 2 to 3 traps. Coefficients of variation among replicate traps were taxon-specific, ranging from 0.9 (for clupeids) to 0.2-0.1 (for pomacentrids). These values compare favourably with those obtained from trawl nets. Light traps have considerable potential for sampling nekton that are capable of avoiding conventional towed nets.

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“…Se han planteado diversos tipos de métodos de captura complementarios para estudiar las larvas de peces en este tipo de hábitats, como trampas de luz (Ordoñez-López et al 2013), redes Renfro (García-Hernández et al 2009), bombas de plancton (Brander & Thompson 1989) y redes conducidas por buzos (Brogan 1994). La utilización de una red con una luz de malla mayor como 505 µm pudiera ser de gran ayuda para capturar organismos de mayor tamaño, ya que en el presente estudio, una gran parte de los organismos colectados (10% del total) estaban en etapa de preflexión y sus caracteres taxonómicos no fueron fácilmente visibles, razón por la cual no fue posible identificarlos a nivel especie (14 taxa).…”

Section: Discussionunclassified

Listado taxonómico, aspectos ecológicos y biogeográficos de las larvas de peces del Sistema Arrecifal Veracruzano, Suroeste del Golfo de México (junio 2011-junio 2013)

Ayala-Rodríguez

Ordóñez-López

Meiners

et al. 2016

Rev. biol. mar. oceanogr.

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Diel differences in avoidance of three vertical profile sampling gears by herring larvae

Cited by 43 publications

References 0 publications

Diurnal and tidal vertical migration of pre-settlement King George whiting Sillaginodes punctata in relation to feeding and vertical distribution of prey in a temperate bay

Diurnal and tidal vertical migration of pre-settlement King George whiting Sillaginodes punctata in relation to feeding and vertical distribution of prey in a temperate bay

Evaluating the performance of light traps for sampling small fish and squid in open waters of the central Great Barrier Reef lagoon

Listado taxonómico, aspectos ecológicos y biogeográficos de las larvas de peces del Sistema Arrecifal Veracruzano, Suroeste del Golfo de México (junio 2011-junio 2013)

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