LotaV3, Main, Exploration, bibRecord, 001467

Diet, prey selection, and growth of larval and juvenile burbot Lota lota (L.)

Identifieur interne : 001467 ( Main/Exploration ); précédent : 001466; suivant : 001468

Diet, prey selection, and growth of larval and juvenile burbot Lota lota (L.)

Auteurs : D. Ghan [Canada] ; W. G. Sprules [Canada]

Source :

Journal of Fish Biology [ 0022-1112 ] ; 1993-01.

RBID : ISTEX:BBA00A50C1C275BE164BBE3C54F206D819D3D4A0

Descripteurs français

Pascal (Inist)
- Animal jeune, Choix proie, Croissance, Lac Oneida, Larve, New York, Régime alimentaire.

English descriptors

KwdEn :
- Diet, Growth, Larva, Lota lota, New York, Oncida Lake, Prey selection, Young animal, burbot, diet, prey selection.

Abstract

The diet, prey selection, and growth of larval and juvenile Oneida Lake burbot, Lota lota(L.), was investigated from the time of first hatch in mid‐April until their disappearance from the pelagic zone at the beginning of June. Mean length increased exponentially from 3–20 mm on 18 April to 15–00 mm on 29 May. The number and size of prey in burbot stomachs, and the prey size most selected by burbot increased as they grew. Prey width, not prey length, limited the size of prey ingested. The smallest burbot ate and selected highly for the largest prey they could ingest, but older burbot did not. As burbot grew, prey selection was highest first for the rotifer Asplanchna, followed by copepod nauplii, then cyclopoid copepods. Daphnia and calanoid copepods and cyclopoid copepods were selected to similar degrees by 29 May. For a given size, however, cyciopoid copepods were selected more strongly than any other prey type from 18 to 29 May. There were no significant differences in prey selection among offshore, nearshore, and onshore habitats, nor among depths in the offshore habitat.

Url:

https://api.istex.fr/document/BBA00A50C1C275BE164BBE3C54F206D819D3D4A0/fulltext/pdf

DOI: 10.1111/j.1095-8649.1993.tb00305.x

Affiliations:

Le document en format XML

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<term>Oncida Lake</term>
<term>Prey selection</term>
<term>Young animal</term>
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<term>diet</term>
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<keywords scheme="Pascal" xml:lang="fr"><term>Animal jeune</term>
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<front><div type="abstract" xml:lang="en">The diet, prey selection, and growth of larval and juvenile Oneida Lake burbot, Lota lota(L.), was investigated from the time of first hatch in mid‐April until their disappearance from the pelagic zone at the beginning of June. Mean length increased exponentially from 3–20 mm on 18 April to 15–00 mm on 29 May. The number and size of prey in burbot stomachs, and the prey size most selected by burbot increased as they grew. Prey width, not prey length, limited the size of prey ingested. The smallest burbot ate and selected highly for the largest prey they could ingest, but older burbot did not. As burbot grew, prey selection was highest first for the rotifer Asplanchna, followed by copepod nauplii, then cyclopoid copepods. Daphnia and calanoid copepods and cyclopoid copepods were selected to similar degrees by 29 May. For a given size, however, cyciopoid copepods were selected more strongly than any other prey type from 18 to 29 May. There were no significant differences in prey selection among offshore, nearshore, and onshore habitats, nor among depths in the offshore habitat.</div>
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Serveur d'exploration Lota lota

Diet, prey selection, and growth of larval and juvenile burbot Lota lota (L.)

Diet, prey selection, and growth of larval and juvenile burbot Lota lota (L.)

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

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