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Titolo:
Locomotor mechanics during early life history: Effects of size and ontogeny on fast-start performance of salmonid fishes
Autore:
Hale, ME;
Indirizzi:
Univ Chicago, Dept Organismal Biol & Anat, Chicago, IL 60637 USA Univ Chicago Chicago IL USA 60637 smal Biol & Anat, Chicago, IL 60637 USA Field Museum Nat Hist, Chicago, IL 60605 USA Field Museum Nat Hist Chicago IL USA 60605 at Hist, Chicago, IL 60605 USA
Titolo Testata:
JOURNAL OF EXPERIMENTAL BIOLOGY
fascicolo: 11, volume: 202, anno: 1999,
pagine: 1465 - 1479
SICI:
0022-0949(199906)202:11<1465:LMDELH>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
ANGELFISH PTEROPHYLLUM-EIMEKEI; YOUNG MIGRATORY TROUT; HIGH-SPEED FILM; ESCAPE RESPONSE; MAXIMUM ACCELERATIONS; POPULATION REGULATION; ONCORHYNCHUS-KISUTCH; BRACHYDANIO-RERIO; NORTHERN ANCHOVY; ENGRAULIS-MORDAX;
Keywords:
fast-start; ontogeny; life history; locomotion; swimming; fish; Salmo trutta; Oncorhynchus tshawyscha; Oncorhynchus kisutch; Salmonidae; functional morphology;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
63
Recensione:
Indirizzi per estratti:
Indirizzo: Hale, ME SUNY794ony Brook, Dept Neurobiol & Behav, Life Sci Bldg, Stony Brook, NY 11 SUNY Stony Brook Life Sci Bldg Stony Brook NY USA 11794 ok, NY 11
Citazione:
M.E. Hale, "Locomotor mechanics during early life history: Effects of size and ontogeny on fast-start performance of salmonid fishes", J EXP BIOL, 202(11), 1999, pp. 1465-1479

Abstract

Fast-start locomotor behavior is important for escaping from predators andfor capturing prey. To examine the effects of size and other aspects of developmental morphology on fast-start performance, the kinematics of the fast-start escape behavior were studied through early post-hatching development in three salmonid species: chinook salmon (Oncorhynchus tshawytscha), coho salmon (Oncorhynchus kisutch) and brown trout (Salmo trutta). These threespecies, while morphologically and developmentally similar, hatch. and mature at different sizes (total length), Comparison of these species shows that some fast-start performance variables, including stage duration, maximumvelocity and maximum acceleration, are highly dependent on ontogenetic state, while another, the overall distance traveled during stage 2, scales with total body length. Brown trout were studied from hatching into the juvenile development period. Aspects of fast-start performance peak at the end ofyolk-sac absorption (the end of the eleutheroembryo phase) when the fish reaches the juvenile period. At this time, the durations of the fast-start stages are at their minima, and maximum velocity and maximum acceleration are at their highest levels relative to body length. Thus, escape behavior reaches its maximum size-specific performance at a relatively small size, just as the fish absorbs its yolk sac and begins to search for food, This peakin fast-start performance occurs during a life history period in which fast-start ability is likely to be particularly important for survival.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/09/20 alle ore 10:40:13