e-journal

Morphometric variation in bluegill Lepomis macrochirus and green sunfish Lepomis cyanellus in lentic and lotic systems

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Bluegill Lepomis macrochirus and green sunfish Lepomis cyanellus were examined using geometric morphometrics to evaluate the variation in morphology between fishes that reside in lentic (e.g. lakes) and lotic (e.g. streams) ecosystems. Live fishes were collected from reservoirs and rivers in central Indiana, while additional fishes were sampled from museum collections at Ball State University and the
Illinois Natural History Survey. Male and female L. macrochirus and female L. cyanellus from lentic systems display a deeper body than those from lotic systems, while no differences were found in male L.
cyanellus morphometry.Adeeper body promotes greater manoeuverability, typically desirable in lentic
systems. In contrast, the more streamlined body of the fishes found in lotic systems reduces drag as it
contends with flowing water, ultimately maximizing energy efficiency. The absence of morphological
differences, such as those found in male L. cyanellus, may be caused by fish occupying both lentic and
lotic systems, from the population not having been present in the body of water long enough to display
any adaptations, or from a lack of statistical power caused by the small sample size.

Key words: body shape; Centrachidae; lakes; relative warp analysis; streams.

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Ketersediaan

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Informasi Detail

Judul Seri

Journal of Fish Biology

No. Panggil

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Penerbit

U.S.A : The Fisheries Society of the British Isles., 2014

Deskripsi Fisik

Journal of Fish Biology (2015) 86, 317–332

Bahasa

English

ISBN/ISSN

doi:10.1111/jfb.1258

Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

(2015) 86, 317–332

Subjek

PERIKANAN

Info Detail Spesifik

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Pernyataan Tanggungjawab

Mutia/Agus

Versi lain/terkait

Lampiran Berkas

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