Another Novel Feeding Mode in the Labridae: Juvenile Tuskfish Fan Sand With Vigorous Single Pectoral Fin Swipes

IF 1.8 4区 生物学 Q3 MARINE & FRESHWATER BIOLOGY
Brendan C. Ebner, David L. Morgan
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引用次数: 0

Abstract

Fishes exhibit a range of feeding modes and strategies to forage in and on sand habitat. Here, we describe a novel feeding mode, whereby small juvenile baldchin groper, Choerodon rubescens (⁓65–100 mm TL), vigorously forward sweeps the benthos with a single pectoral fin to reveal small benthic prey and visually scans the immediate benthos on the swept side of the body. The behaviour was not exhibited by larger conspecifics (140–180 mm TL) presumably because they had progressed to larger and hard-shelled benthic prey and/or perhaps because the small juveniles foraged more or less continuously to obtain enough very small prey. These records confirm yet another mode of prey capture in the evolution of the highly variable feeding repertoire of the Labridae.

Abstract Image

唇鲨科的另一种新的进食方式:幼年长牙鱼用有力的单胸鳍摆动扇沙
鱼类表现出一系列的摄食模式和策略,在沙地栖息地觅食。在这里,我们描述了一种新的摄食模式,幼年秃顶摸索鱼Choerodon rubescens(⁓65-100 mm TL)用单个胸鳍大力向前扫底栖动物,以显示小型底栖动物猎物,并在身体扫过的一侧视觉扫描邻近的底栖动物。体型较大的同种鱼(长度140-180毫米)没有表现出这种行为,这可能是因为它们已经进化成体型更大、壳更硬的底栖动物猎物,或者可能是因为体型较小的幼鱼或多或少地连续觅食,以获得足够的小猎物。这些记录证实了另一种捕食模式在进化过程中的高度变化的捕食技能。
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来源期刊
Marine Ecology-An Evolutionary Perspective
Marine Ecology-An Evolutionary Perspective 生物-海洋与淡水生物学
CiteScore
2.70
自引率
0.00%
发文量
37
审稿时长
>12 weeks
期刊介绍: Marine Ecology publishes original contributions on the structure and dynamics of marine benthic and pelagic ecosystems, communities and populations, and on the critical links between ecology and the evolution of marine organisms. The journal prioritizes contributions elucidating fundamental aspects of species interaction and adaptation to the environment through integration of information from various organizational levels (molecules to ecosystems) and different disciplines (molecular biology, genetics, biochemistry, physiology, marine biology, natural history, geography, oceanography, palaeontology and modelling) as viewed from an ecological perspective. The journal also focuses on population genetic processes, evolution of life histories, morphological traits and behaviour, historical ecology and biogeography, macro-ecology and seascape ecology, palaeo-ecological reconstruction, and ecological changes due to introduction of new biota, human pressure or environmental change. Most applied marine science, including fisheries biology, aquaculture, natural-products chemistry, toxicology, and local pollution studies lie outside the scope of the journal. Papers should address ecological questions that would be of interest to a worldwide readership of ecologists; papers of mostly local interest, including descriptions of flora and fauna, taxonomic descriptions, and range extensions will not be considered.
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