Laboratory experiment, the number of clams consumed by the fish of FLORIDA POMPANO in experimental tanks feeding on coquina clams individually and in groups from 2013-11-26 to 2013-12-03 (NODC Accession 0127553)

Metadata Updated: March 10, 2021

This dataset includes the results from a laboratory experiment assessing whether juvenile Florida Pompano (Trachinotus carolinus) foraging success is greater when in groups of multiple fish or when feeding alone. Florida Pompano were given coquina clams (Donax sp.) as a prey source, a main component of their natural diet in the north-central Gulf of Mexico. These data accompany the following peer-reviewed publication title: Facilitation and dominance in a schooling predator: foraging behavior of Florida Pompano, Trachinotus carolinus. Presumably an individual's risk of predation is reduced by group membership and this "safety in numbers" concept has been readily applied to investigations of schooling prey; however, foraging in groups may also be beneficial. We tested the hypothesis that, when feeding in groups, foraging of a coastal fish (Florida Pompano, Trachinotus carolinus) on a benthic prey source would be facilitated (i.e. fish feeding in groups will consume more prey items). Although this question has been addressed for other fish species, it has not been previously addressed for Florida Pompano, a fish known to exhibit schooling behavior and that is used for aquaculture, where understanding the feeding ecology is important for healthy and efficient grow-out. In this experiment, juvenile Florida Pompano were offered a fixed number of coquina clams (Donax spp.) for one hour either in a group or as individuals. The following day they were tested in the opposite configuration. Fish in groups achieved greater consumption (average of 26 clams consumed by the entire group) than the individuals comprising the group (average of 14 clams consumed [sum of clams consumed by all individuals of the group]). Fish in groups also had fewer unsuccessful foraging attempts (2.75 compared to 4.75 hr-1) and tended to have a shorter latency until the first feeding activity. Our results suggest fish in groups were more comfortable feeding and more successful in their feeding attempts. Interestingly, the consumption benefit of group foraging was not shared by all - not all fish within a group consumed equal numbers of clams. Taken together, the results support our hypothesis that foraging in a group provides facilitation, but the short-term benefits are not equally shared by all individuals.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Created Date March 10, 2021
Metadata Updated Date March 10, 2021
Data Update Frequency irregular

Metadata Source

Harvested from Commerce Non Spatial Data.json Harvest Source

Additional Metadata

Resource Type Dataset
Metadata Created Date March 10, 2021
Metadata Updated Date March 10, 2021
Publisher US National Oceanographic Data Center (Point of Contact)
Unique Identifier Unknown
Identifier gov.noaa.nodc:0127553
Language en-US
Data Last Modified 2015-05-06
Public Access Level public
Data Update Frequency irregular
Bureau Code 006:48
Metadata Context
Schema Version
Catalog Describedby
Old Spatial {"type": "Point", "coordinates": -88.0778032, 30.2493549}
Program Code 006:059
Source Datajson Identifier True
Source Hash 00c3d8a477c593d55198052116ecbb6afce4e69f
Source Schema Version 1.1
Spatial {"type": "Point", "coordinates": -88.0778032, 30.2493549}
Temporal 2013-11-26T00:00:00/2013-12-03T00:00:00

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