A field study of prey selection in planktivorous fish larvae

Oecologia ◽  
1983 ◽  
Vol 59 (1) ◽  
pp. 65-68 ◽  
Author(s):  
M. Rajasilta ◽  
I. Vuorinen
Keyword(s):  
Field Study ◽  
Prey Selection ◽  
Fish Larvae ◽  
Planktivorous Fish

The Nature of Prey Selection by Planktivorous Fish

Ecology ◽  
1977 ◽  
Vol 58 (1) ◽  
pp. 46-59 ◽  
Author(s):  
Douglas M. Eggers
Keyword(s):  
Prey Selection ◽  
Planktivorous Fish

Spring development of zooplankton and spatial pattern of planktivorous fish larvae in a mesotrophic lake

1994 ◽  
Vol 25 (4) ◽  
pp. 2132-2138 ◽  
Author(s):  
J. Sarvala ◽  
H. Helminen ◽  
A. Hirvonen ◽  
M. Miinalainen ◽  
V. Saarikari
Keyword(s):  
Spatial Pattern ◽  
Fish Larvae ◽  
Planktivorous Fish ◽  
Mesotrophic Lake

Resource Partitioning Among Planktivorous Fish Larvae and Fry in a Mediterranean Coastal Lagoon

1996 ◽  
Vol 43 (6) ◽  
pp. 723-735 ◽  
Author(s):  
E. Gisbert ◽  
L. Cardona ◽  
F. Castelló
Keyword(s):  
Coastal Lagoon ◽  
Resource Partitioning ◽  
Fish Larvae ◽  
Planktivorous Fish ◽  
Mediterranean Coastal Lagoon

Size-dependent predation on marine fish larvae by Ctenophores, Scyphomedusae, and Planktivorous fish

1992 ◽  
Vol 1 (2) ◽  
pp. 113-126 ◽  
Author(s):  
JAMES H. COWAN ◽  
EDWARD D. HOUDE
Keyword(s):  
Marine Fish ◽  
Fish Larvae ◽  
Planktivorous Fish ◽  
Size Dependent ◽  
Marine Fish Larvae

Bioenergetic model of planktivorous fish feeding, growth and metabolism: theoretical optimum swimming speed of fish larvae

1988 ◽  
Vol 32 (3) ◽  
pp. 443-458 ◽  
Author(s):  
K. Darowski ◽  
F. Takashima ◽  
Y. K. Law
Keyword(s):  
Swimming Speed ◽  
Fish Larvae ◽  
Planktivorous Fish ◽  
Bioenergetic Model ◽  
Fish Feeding

Size-dependent foraging of larval Atlantic cod (Gadus morhua)

2004 ◽  
Vol 82 (8) ◽  
pp. 1380-1389 ◽  
Author(s):  
Velmurugu Puvanendran ◽  
Karine Salies ◽  
Benjamin Laurel ◽  
Joseph A Brown
Keyword(s):  
Marine Fish ◽  
Gadus Morhua ◽  
Atlantic Cod ◽  
Prey Selection ◽  
Fish Larvae ◽  
Growth And Survival ◽  
Size Dependent ◽  
Marine Fish Larvae ◽  
Key Factor ◽  
Foraging Environment

Most marine fish larvae are thought to be gape-limited predators, and the presence of suitably sized prey at the appropriate time in the foraging environment is a key factor for their growth and survival. Two experiments were carried out: in experiment 1, we investigated feeding of Atlantic cod (Gadus morhua L., 1758) larvae from 5 to 35 days post hatch on prey of three different sizes: two different-sized strains of rotifers, small rotifers (SR) and large rotifers (LR), and Artemia Leach, 1819 nauplii (AN), or an equal mixture of the three types of prey (MIX). In experiment 2, cod larvae were fed SR, LR, or a combination of SR and LR (MIX-R) at concentrations of 1500 and 4000 prey·L–1 from 4 to 20 days post hatch. Feeding incidence, number of prey in the gut, mouth gape, and prey selection were measured. In experiment 1, feeding incidence was initially higher in the SR treatment, while larvae failed to start feeding in either the LR or the AN treatment at 5 dph. Larvae in the LR treatment started feeding at 8 dph, and feeding incidence was comparable to that in the SR treatment, but the total number of prey eaten was higher in the SR than in the LR treatment until 20 dph. Larvae did not start feeding on AN until 26 dph, although they attacked them from 5 dph. In the MIX-R treatment in experiment 2, larvae fed selectively on LR at 4000 prey·L–1, whereas no selection was observed at 1500 prey·L–1. Our results suggest that cod larvae are gape-limited predators and the concentration of prey affects prey selection.

Prey selection of larval and juvenile planktivorous fish: impacts of introduced prey

2016 ◽  
Vol 99 (8-9) ◽  
pp. 633-646 ◽  
Author(s):  
Lindsay J. Sullivan ◽  
Toni R. Ignoffo ◽  
Bradd Baskerville-Bridges ◽  
David J. Ostrach ◽  
Wim J. Kimmerer
Keyword(s):  
Prey Selection ◽  
Planktivorous Fish ◽  
Selection Of

scholarly journals Diel vertical migration of predators (planktivorous fish larvae) and prey (zooplankton) in a tropical lagoon

2015 ◽  
Vol 105 (2) ◽  
pp. 174-183 ◽  
Author(s):  
Marcos Marques Mendonça ◽  
Pablo Henrique dos Santos Picapedra ◽  
Michelli Caroline Ferronato ◽  
Paulo Vanderlei Sanches
Keyword(s):  
Vertical Migration ◽  
Diel Vertical Migration ◽  
Predator Avoidance ◽  
Fish Larvae ◽  
Abiotic Factors ◽  
Reproductive Period ◽  
Planktivorous Fish ◽  
Spatial Overlap ◽  
Tropical Lagoon ◽  
Small Depth

ABSTRACT Based on the hypothesis that diel vertical migration (DVM) is a mechanism of predator avoidance, the objective of the present study was to test for the occurrence of DVM in planktivorous fish larvae of Hypophthalmus edentatus (Spix, 1829) (Siluriformes, Pimelodidae) and Plagioscion squamosissimus (Heckel, 1840) (Perciformes, Sciaenidae), and zooplankton (rotifers, cladocerans and copepods) in an isolated tropical lagoon in the floodplain of the Upper Paraná River, Brazil (region of Parque Nacional de Ilha Grande). We investigated spatial overlap between predators (planktivorous fish larvae) and prey (zooplankton), and tested which physical and chemical variables of the water are related to the DVM of the studied communities. We performed nocturnal (8:00 pm and 4:00 am) and diurnal sampling (8:00 am and 4:00 pm) in the limnetic region of the lagoon for six consecutive months, from October 2010 to March 2011, which comprises the reproductive period of the fish species analyzed. During the day the larvae tried to remain aggregated in the bottom of the lagoon, whereas at night they tried to disperse in the water column. Especially for cladocerans, the diel vertical migration is an important behavior to avoid predation larvae of H. edentatus and P. squamosissimus once decreased spatial overlap between secured and its potential predators, which corroborates the hypothesis that DVM is a mechanism of predator avoidance. Although significant correlations were observed between the abiotic factors and WMD of microcrustaceans at certain times of day, the effect of predation of fish larvae on zooplankton showed more important in this environment, because the small depth and isolation not allow great variation of abiotic factors seasonally and between strata the lagoon.

Intestinal microflora of fish larvae and fry

1999 ◽  
Vol 30 (2) ◽  
pp. 73 ◽  
Author(s):  
E Ringø,
Keyword(s):  
Intestinal Microflora ◽  
Fish Larvae
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