Parasitic attachments by overwintering silver lampreys, Ichthyomyzon unicuspis, and chestnut lampreys, Ichthyomyzon castaneus
Identifieur interne : 000092 ( PascalFrancis/Curation ); précédent : 000091; suivant : 000093Parasitic attachments by overwintering silver lampreys, Ichthyomyzon unicuspis, and chestnut lampreys, Ichthyomyzon castaneus
Auteurs : Philip A. Cochran [États-Unis] ; John Lyons [États-Unis] ; Matthew R. Gehl [États-Unis]Source :
- Environmental biology of fishes [ 0378-1909 ] ; 2003.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Lac.
English descriptors
- KwdEn :
Abstract
synopsis We present evidence that at least some parasitic-phase silver lampreys, Ichthyomyzon unicuspis, and chestnut lampreys, I. castaneus, remain attached to host fish during the winter. Lake sturgeon, Acipenser fulvescens, harvested through the ice by spearfishers in the Lake Winnebago system in Wisconsin may bear silver lampreys or fresh lamprey wounds, and sturgeon with lamprey marks were significantly larger than sturgeon without them. Silver lampreys collected on paddlefish, Polyodon spathula, in the Wisconsin River in March were not significantly longer than silver lampreys collected previously in late October, but they were significantly heavier, an indication that they were feeding to at least some extent during the intervening period. Other large fish species, including northern pike, Esox lucius, and flathead catfish, Pylodictus olivaris, have been collected or observed during the winter with silver or chestnut lampreys attached. Although energy and nutrient intake by parasitic lampreys may be reduced during the winter, lampreys attached to hosts may also benefit from the hosts' mobility and ability to avoid potentially harmful situations.
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<author><name sortKey="Lyons, John" sort="Lyons, John" uniqKey="Lyons J" first="John" last="Lyons">John Lyons</name>
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<author><name sortKey="Gehl, Matthew R" sort="Gehl, Matthew R" uniqKey="Gehl M" first="Matthew R." last="Gehl">Matthew R. Gehl</name>
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<author><name sortKey="Lyons, John" sort="Lyons, John" uniqKey="Lyons J" first="John" last="Lyons">John Lyons</name>
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<author><name sortKey="Gehl, Matthew R" sort="Gehl, Matthew R" uniqKey="Gehl M" first="Matthew R." last="Gehl">Matthew R. Gehl</name>
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<series><title level="j" type="main">Environmental biology of fishes</title>
<title level="j" type="abbreviated">Environ. biol. fishes</title>
<idno type="ISSN">0378-1909</idno>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Body size</term>
<term>Host</term>
<term>Ichthyomyzon unicuspis</term>
<term>Interspecific comparison</term>
<term>Lakes</term>
<term>Life cycle</term>
<term>Overwintering</term>
<term>Parasite</term>
<term>Petromyzon marinus</term>
<term>Wisconsin</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Hivernage</term>
<term>Parasite</term>
<term>Cycle développement</term>
<term>Taille corporelle</term>
<term>Comparaison interspécifique</term>
<term>Hôte</term>
<term>Lac</term>
<term>Wisconsin</term>
<term>Ichthyomyzon unicuspis</term>
<term>Petromyzon marinus</term>
<term>Ichthyomyzon castaneus</term>
<term>Acipenser fulvescens</term>
<term>Polyodon spathula</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Lac</term>
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<front><div type="abstract" xml:lang="en">synopsis We present evidence that at least some parasitic-phase silver lampreys, Ichthyomyzon unicuspis, and chestnut lampreys, I. castaneus, remain attached to host fish during the winter. Lake sturgeon, Acipenser fulvescens, harvested through the ice by spearfishers in the Lake Winnebago system in Wisconsin may bear silver lampreys or fresh lamprey wounds, and sturgeon with lamprey marks were significantly larger than sturgeon without them. Silver lampreys collected on paddlefish, Polyodon spathula, in the Wisconsin River in March were not significantly longer than silver lampreys collected previously in late October, but they were significantly heavier, an indication that they were feeding to at least some extent during the intervening period. Other large fish species, including northern pike, Esox lucius, and flathead catfish, Pylodictus olivaris, have been collected or observed during the winter with silver or chestnut lampreys attached. Although energy and nutrient intake by parasitic lampreys may be reduced during the winter, lampreys attached to hosts may also benefit from the hosts' mobility and ability to avoid potentially harmful situations.</div>
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<fC01 i1="01" l="ENG"><s0>synopsis We present evidence that at least some parasitic-phase silver lampreys, Ichthyomyzon unicuspis, and chestnut lampreys, I. castaneus, remain attached to host fish during the winter. Lake sturgeon, Acipenser fulvescens, harvested through the ice by spearfishers in the Lake Winnebago system in Wisconsin may bear silver lampreys or fresh lamprey wounds, and sturgeon with lamprey marks were significantly larger than sturgeon without them. Silver lampreys collected on paddlefish, Polyodon spathula, in the Wisconsin River in March were not significantly longer than silver lampreys collected previously in late October, but they were significantly heavier, an indication that they were feeding to at least some extent during the intervening period. Other large fish species, including northern pike, Esox lucius, and flathead catfish, Pylodictus olivaris, have been collected or observed during the winter with silver or chestnut lampreys attached. Although energy and nutrient intake by parasitic lampreys may be reduced during the winter, lampreys attached to hosts may also benefit from the hosts' mobility and ability to avoid potentially harmful situations.</s0>
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<fC02 i1="01" i2="X"><s0>002A14B02C2A</s0>
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<s5>01</s5>
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<fC03 i1="01" i2="X" l="ENG"><s0>Overwintering</s0>
<s5>01</s5>
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<fC03 i1="01" i2="X" l="SPA"><s0>Invernada</s0>
<s5>01</s5>
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<fC03 i1="02" i2="X" l="FRE"><s0>Parasite</s0>
<s5>02</s5>
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<fC03 i1="02" i2="X" l="ENG"><s0>Parasite</s0>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="X" l="SPA"><s0>Parásito</s0>
<s5>02</s5>
</fC03>
<fC03 i1="03" i2="X" l="FRE"><s0>Cycle développement</s0>
<s5>03</s5>
</fC03>
<fC03 i1="03" i2="X" l="ENG"><s0>Life cycle</s0>
<s5>03</s5>
</fC03>
<fC03 i1="03" i2="X" l="SPA"><s0>Ciclo desarrollo</s0>
<s5>03</s5>
</fC03>
<fC03 i1="04" i2="X" l="FRE"><s0>Taille corporelle</s0>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="X" l="ENG"><s0>Body size</s0>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="X" l="SPA"><s0>Talla corporal</s0>
<s5>04</s5>
</fC03>
<fC03 i1="05" i2="X" l="FRE"><s0>Comparaison interspécifique</s0>
<s5>05</s5>
</fC03>
<fC03 i1="05" i2="X" l="ENG"><s0>Interspecific comparison</s0>
<s5>05</s5>
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<fC03 i1="05" i2="X" l="SPA"><s0>Comparación interespecífica</s0>
<s5>05</s5>
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<fC03 i1="06" i2="X" l="FRE"><s0>Hôte</s0>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="X" l="ENG"><s0>Host</s0>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="X" l="SPA"><s0>Huesped</s0>
<s5>06</s5>
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<fC03 i1="07" i2="X" l="FRE"><s0>Lac</s0>
<s5>07</s5>
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<fC03 i1="07" i2="X" l="ENG"><s0>Lakes</s0>
<s5>07</s5>
</fC03>
<fC03 i1="07" i2="X" l="SPA"><s0>Lago</s0>
<s5>07</s5>
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<fC03 i1="08" i2="X" l="FRE"><s0>Wisconsin</s0>
<s2>NG</s2>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="ENG"><s0>Wisconsin</s0>
<s2>NG</s2>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="SPA"><s0>Wisconsín</s0>
<s2>NG</s2>
<s5>08</s5>
</fC03>
<fC03 i1="09" i2="X" l="FRE"><s0>Ichthyomyzon unicuspis</s0>
<s2>NS</s2>
<s5>55</s5>
</fC03>
<fC03 i1="09" i2="X" l="ENG"><s0>Ichthyomyzon unicuspis</s0>
<s2>NS</s2>
<s5>55</s5>
</fC03>
<fC03 i1="09" i2="X" l="SPA"><s0>Ichthyomyzon unicuspis</s0>
<s2>NS</s2>
<s5>55</s5>
</fC03>
<fC03 i1="10" i2="X" l="FRE"><s0>Petromyzon marinus</s0>
<s2>NS</s2>
<s5>57</s5>
</fC03>
<fC03 i1="10" i2="X" l="ENG"><s0>Petromyzon marinus</s0>
<s2>NS</s2>
<s5>57</s5>
</fC03>
<fC03 i1="10" i2="X" l="SPA"><s0>Petromyzon marinus</s0>
<s2>NS</s2>
<s5>57</s5>
</fC03>
<fC03 i1="11" i2="X" l="FRE"><s0>Ichthyomyzon castaneus</s0>
<s2>NS</s2>
<s4>INC</s4>
<s5>65</s5>
</fC03>
<fC03 i1="12" i2="X" l="FRE"><s0>Acipenser fulvescens</s0>
<s2>NS</s2>
<s4>INC</s4>
<s5>67</s5>
</fC03>
<fC03 i1="13" i2="X" l="FRE"><s0>Polyodon spathula</s0>
<s2>NS</s2>
<s4>INC</s4>
<s5>68</s5>
</fC03>
<fC07 i1="01" i2="X" l="FRE"><s0>Etats Unis</s0>
<s2>NG</s2>
</fC07>
<fC07 i1="01" i2="X" l="ENG"><s0>United States</s0>
<s2>NG</s2>
</fC07>
<fC07 i1="01" i2="X" l="SPA"><s0>Estados Unidos</s0>
<s2>NG</s2>
</fC07>
<fC07 i1="02" i2="X" l="FRE"><s0>Amérique du Nord</s0>
<s2>NG</s2>
</fC07>
<fC07 i1="02" i2="X" l="ENG"><s0>North America</s0>
<s2>NG</s2>
</fC07>
<fC07 i1="02" i2="X" l="SPA"><s0>America del norte</s0>
<s2>NG</s2>
</fC07>
<fC07 i1="03" i2="X" l="FRE"><s0>Amérique</s0>
<s2>NG</s2>
</fC07>
<fC07 i1="03" i2="X" l="ENG"><s0>America</s0>
<s2>NG</s2>
</fC07>
<fC07 i1="03" i2="X" l="SPA"><s0>America</s0>
<s2>NG</s2>
</fC07>
<fC07 i1="04" i2="X" l="FRE"><s0>Milieu eau douce</s0>
<s5>16</s5>
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<fC07 i1="04" i2="X" l="ENG"><s0>Freshwater environment</s0>
<s5>16</s5>
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<s5>16</s5>
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<fC07 i1="05" i2="X" l="FRE"><s0>Parasitisme</s0>
<s5>18</s5>
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<fC07 i1="05" i2="X" l="ENG"><s0>Parasitism</s0>
<s5>18</s5>
</fC07>
<fC07 i1="05" i2="X" l="SPA"><s0>Parasitismo</s0>
<s5>18</s5>
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<fC07 i1="06" i2="X" l="FRE"><s0>Pisces</s0>
<s2>NS</s2>
<s5>30</s5>
</fC07>
<fC07 i1="06" i2="X" l="ENG"><s0>Pisces</s0>
<s2>NS</s2>
<s5>30</s5>
</fC07>
<fC07 i1="06" i2="X" l="SPA"><s0>Pisces</s0>
<s2>NS</s2>
<s5>30</s5>
</fC07>
<fC07 i1="07" i2="X" l="FRE"><s0>Vertebrata</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="07" i2="X" l="ENG"><s0>Vertebrata</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="07" i2="X" l="SPA"><s0>Vertebrata</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="08" i2="X" l="FRE"><s0>Agnatha</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="08" i2="X" l="ENG"><s0>Agnatha</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="08" i2="X" l="SPA"><s0>Agnatha</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="09" i2="X" l="FRE"><s0>Polyodontidae</s0>
<s2>NS</s2>
<s4>INC</s4>
<s5>73</s5>
</fC07>
<fN21><s1>040</s1>
</fN21>
<fN82><s1>PSI</s1>
</fN82>
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