scholarly journals Does structural change in the zooplankton community affect larval fish feeding in anthropogenically disturbed tropical waters?

2021 ◽  
Author(s):  
W. C. Quah ◽  
L. L. Chew ◽  
V. C. Chong ◽  
C. Chu ◽  
C. Y. Teoh ◽  
...  
Keyword(s):  
Structural Change ◽  
Larval Fish ◽  
Zooplankton Community ◽  
Fish Feeding ◽  
Tropical Waters

scholarly journals Feeding of the Brycon cephalus, Triportheus elongatus and Semaprochilodus insignis (osteichthyes, characiformes) larvae in Solimões/Amazonas River and floodplain areas.

2002 ◽  
Vol 32 (3) ◽  
pp. 499-499 ◽  
Author(s):  
Rosseval Galdino LEITE ◽  
Carlos A.R.M. ARAUJO-LIMA
Keyword(s):  
Food Item ◽  
Prey Size ◽  
Larval Fish ◽  
Fish Larvae ◽  
Trophic Relations ◽  
Fish Feeding ◽  
Important Species ◽  
Flooded Forests ◽  
Commercially Important

Information on larval fish feeding is essential for understanding their trophic relations, including the management in conditions totally or partially controlled by humans. An experiment was designed to evaluate the larval diets of three commercially important species. Four varzea-lakes and the adjacent river were sampled with bongo and hand nets from January 1993 to November 1995. Larval diets were evaluated by length-classes and capture sites, and were tested by two factor ANOVA. The larvae were feeding in all habitats, except in the flooded forests. The three species had different diets, which varied with their length and lake. The rotifers were the main initial food item of the three species, replaced by fish larvae in Brycon cephalus, cladocerans in Triportheus elongatus and detritus in Semaprochilodus insignis. The increase of the ingestion limit, as the larvae grew, was higher than the increase in the consumed prey size for the three species.

scholarly journals Mesoscale, cyclonic eddies as larval fish habitat along the southeast United States shelf: a Lagrangian description of the zooplankton community

2009 ◽  
Vol 67 (3) ◽  
pp. 403-411 ◽  
Author(s):  
J. J. Govoni ◽  
J. A. Hare ◽  
E. D. Davenport ◽  
M. H. Chen ◽  
K. E. Marancik
Keyword(s):  
United States ◽  
Chlorophyll A ◽  
Larval Fish ◽  
Fish Habitat ◽  
Zooplankton Community ◽  
The United States ◽  
Continuous Series ◽  
Lagrangian Description ◽  
Southeast United States ◽  
Chlorophyll A Concentration

Abstract Govoni, J. J., Hare, J. A., Davenport, E. D., Chen, M. H., and Marancik, K. E. 2010. Mesoscale, cyclonic eddies as larval fish habitat along the southeast United States shelf: a Lagrangian description of the zooplankton community. – ICES Journal of Marine Science, 67: 403–411. The Charleston Gyre region is characterized by continuous series of cyclonic eddies that propagate northeastwards before decaying or coalescing with the Gulf Stream south of Cape Hatteras, NC, USA. Over 5 d, chlorophyll-a concentration, zooplankton displacement volume, and zooplankton composition and abundance changed as the eddy moved to the northeast. Surface chlorophyll-a concentration decreased, and zooplankton displacement remained unchanged as the eddy propagated. Zooplankton taxa known to be important dietary constituents of larval fish increased in concentration as the eddy propagated. The concurrent decrease in chlorophyll-a concentration and static zooplankton displacement volume can be explained by initial stimulation of chlorophyll-a concentration by upwelling and nutrient enrichment near the eddy core and to possible grazing as zooplankton with short generation times and large clutch sizes increased in concentration. The zooplankton community did not change significantly within the 5 d that the eddy was tracked, and there was no indication of succession. Mesoscale eddies of the region are dynamic habitats as eddies propagate northeastwards at varying speeds within monthly periods. The abundance of zooplankton important to the diets of larval fish indicates that the region can provide important pelagic nursery habitat for larval fish off the southeast coast of the United States. A month of feeding and growth is more than half the larval duration of most fish spawned over the continental shelf of the southeastern United States in winter.

scholarly journals Predator-prey interactions in the plankton: larval fish feeding on evasive copepods

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
James M. Jackson ◽  
Petra H. Lenz
Keyword(s):  
Larval Fish ◽  
Fish Feeding ◽  
Predator Prey

scholarly journals Larval fish feeding and turbulence: A case for the downside

2000 ◽  
Vol 45 (1) ◽  
pp. 1-10 ◽  
Author(s):  
Brian R. MacKenzie ◽  
Thomas KiØrboe
Keyword(s):  
Larval Fish ◽  
Fish Feeding

Ecological and Ethological Perspectives in Larval Fish Feeding

2003 ◽  
Vol 13 (1-2) ◽  
pp. 145-178 ◽  
Author(s):  
T. Ramakrishna Rao
Keyword(s):  
Larval Fish ◽  
Fish Feeding

Larval fish feeding ecology, growth and mortality from two basins with contrasting environmental conditions of an inner sea of northern Patagonia, Chile

2015 ◽  
Vol 106 ◽  
pp. 19-29 ◽  
Author(s):  
Mauricio F. Landaeta ◽  
Claudia A. Bustos ◽  
Jorge E. Contreras ◽  
Franco Salas-Berríos ◽  
Pámela Palacios-Fuentes ◽  
...  
Keyword(s):  
Feeding Ecology ◽  
Environmental Conditions ◽  
Larval Fish ◽  
Fish Feeding ◽  
Northern Patagonia

Food of the Alewife (Alosa pseudoharengus) in Lake Ontario before and after the Establishment of Bythotrephes cederstroemi

1992 ◽  
Vol 49 (10) ◽  
pp. 2009-2019 ◽  
Author(s):  
Edward L. Mills ◽  
Robert O'Gorman ◽  
Joe DeGisi ◽  
Roy F. Heberger ◽  
Robert A. House
Keyword(s):  
Thermal Structure ◽  
Zooplankton Community ◽  
Lake Ontario ◽  
Trophic Levels ◽  
Crustacean Zooplankton ◽  
Alosa Pseudoharengus ◽  
Fish Feeding ◽  
Niagara River ◽  
Bythotrephes Cederstroemi ◽  
Before And After

Diets and length–weight relationships of Lake Ontario alewife (Alosa pseudoharengus) in 1972 differed from those in 1988; the large cladoceran Bythotrephes cederstroemi colonized the lake during the mid-1980's. Micro-crustacean zooplankton were the dominant prey of alewife during April–October in 1972 and 1988. Although Bythotrephes was not found in 1988 net samples, it replaced other zooplankters in the alewife's diet. Typically, tailspines were the only part of Bythotrephes in alewife stomachs; their frequency was high in April–May, diminished rapidly in summer and was very low by fall. In spring 1988, alewife [Formula: see text] were in better condition than in spring 1972 and this may have been due to larger fish feeding more heavily on Bythotrephes. Variation in diet among widely separated sampling sites was due to differences in alewife abundance, stability of thermal structure, progress of zooplankton community development and distance to the mouth of the Niagara River (through which Bythotrephes probably enter the lake in summer and fall). In the Great Lakes, inter- and intralake differences in diet clearly exist, and these must be incorporated into models of alewife planktivory to gain an accurate understanding of energy flow between trophic levels.

scholarly journals Individual-based simulations of larval fish feeding in turbulent environments

2007 ◽  
Vol 347 ◽  
pp. 155-169 ◽  
Author(s):  
P Mariani ◽  
BR MacKenzie ◽  
AW Visser ◽  
V Botte
Keyword(s):  
Larval Fish ◽  
Fish Feeding ◽  
Turbulent Environments

Stable Isotopes as a Tool for Nutrient Assimilation Studies in Larval Fish Feeding on Live Food

2004 ◽  
Vol 38 (1) ◽  
pp. 93-100 ◽  
Author(s):  
Christian Schlechtriem ◽  
Ulfert Focken ◽  
Klaus Becker
Keyword(s):  
Stable Isotopes ◽  
Larval Fish ◽  
Live Food ◽  
Fish Feeding ◽  
Nutrient Assimilation

Food web interactions between larval bluegill (Lepomis macrochirus) and exotic zebra mussels (Dreissena polymorpha)

2004 ◽  
Vol 61 (3) ◽  
pp. 497-504 ◽  
Author(s):  
David F Raikow
Keyword(s):  
Food Web ◽  
Dreissena Polymorpha ◽  
Larval Fish ◽  
Lepomis Macrochirus ◽  
Zooplankton Community ◽  
Zebra Mussels ◽  
Structured Populations ◽  
Zooplankton Abundance ◽  
Differential Growth ◽  
Food Web Interactions

Food web interactions between native larval bluegill (Lepomis macrochirus), exotic invasive zebra mussels (Dreissena polymorpha), and zooplankton were examined with a mesocosm experiment. Hatchling larval bluegill collected from nests were reared in the presence of size-structured populations of zebra mussels in 1500-L limnocorrals suspended in an artificial pond for 2 weeks. Chlorophyll a, other limnological variables, and zooplankton abundance and biomass (including copepod nauplii and rotifers) were monitored over time. During their first 2 weeks of life, larval fish reared in the presence of mussels grew 24% more slowly than fish reared alone. Differential growth rates can be explained by competition between mussels and bluegill for food in the form of microzooplankton. Also likely was an indirect competition via starvation of the zooplankton community as zebra mussels consumed phytoplankton. Either direct or indirect trophic competition between zebra mussels and obligate planktivores may result in ecological harm as zebra mussels spread throughout inland lakes of North America.

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