Comparative Food Habits of Two Minnow Species: Blacknose Dace,<i>Rhinichthys atratulus and</i>Longnose Dace,<i>Rhinichthys cataractae</i>

Pappantoniou, Antonios; Dale, George

doi:10.1080/02705060.1982.9664054

Cited by 13 publications

(7 citation statements)

References 3 publications

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“…The primary prey of the former have been reported to be hydropsychids and chironomids whereas chironomids, caddisflies and mayflies are dominant foods of the latter (Adamson and Wissing, 1977;Rollwagen and Stainken, 1980;Johnson, 1982;Pappantoniou and Dale, 1982). Antocha larvae were the only novel prey items found here, reflecting the large numbers of Antocha at our study site.…”

Section: Discussionmentioning

confidence: 56%

Feeding ecology of three predacious aquatic insects and two fish in a riffle of the Speed River, Ontario

Fuller

Hynes

1987

Hydrobiologia

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The food habits of two fish (Etheostoma flabellare and Rhinichthys atratulus) and three predacious aquatic insects (Nigronia serricornis, Paragnetina media and Agnetina capitata) were examined for one year in a riffle of the Speed River, Ontario. Adult E. frabellare fed primarily on net-spinning caddisflies whereas juvenile E. flabellare relied heavily on chironomids. Rhinichthys atratulus had a more varied diet composed of chironomids, Antocha larvae (Tipulidae) and net-spinning caddisflies. Two of the aquatic insect predators consumed large numbers of net-spinning caddisflies; however, I? media contained large percentages of Hydropsyche and Cheumatopsyche whereas N. serricornis fed primarily on non-hydropsychid net-spinners. The diet o? A. capitata was composed largely of chironomids and mayflies. Schoener's diet overlap index ((Y) suggested that large E. J'abellare and I? media had similar diets; however, E. flabellare ingested much larger prey than I? media. Adult E. flabellare contained a significantly greater proportion of larger prey items in comparison with benthic samples whereas similar comparisons with other predators showed no selection for larger prey. These data demonstrate that E. flabellare was size selective given the range of prey sizes available whereas the other predators were not. Also, there was little dietary overlap among the fish and invertebrate predators suggesting a partitioning of resources.

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Section: Discussionmentioning

confidence: 56%

Feeding ecology of three predacious aquatic insects and two fish in a riffle of the Speed River, Ontario

Fuller

Hynes

1987

Hydrobiologia

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“…Blacknose Dace and Creek Chub, which were only slightly larger than some of the larger crayfish we caught. Blacknose Dace and Creek Chub include small amounts of algae and plant material in their diets (Newsome andGee 1978, Pappantoniou andDale 1982), which also may have shifted their stable-isotope values slightly. However, even larger invertivores, such as White Suckers, and piscivores like Brook Trout, had more depleted d 2 H and d 13 C and were ≥1 trophic level (Dd 15 N > 3.4‰) above crayfish (Fig.…”

Section: Discussionmentioning

confidence: 99%

Limited seasonal variation in food quality and foodweb structure in an Adirondack stream: insights from fatty acids

et al. 2017

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Together terrestrial and aquatic resources fuel stream food webs. Past work suggests that both terrestrial and aquatic resources can vary in multiple metrics of food quality, such as elemental, macronutrient, and fatty acid (FA) composition, and that resource quality may vary seasonally in temperate systems. However, studies on FA composition in stream food webs, especially those quantifying seasonal patterns, remain scarce. We documented foodweb structure and examined FA composition as a metric of food quality in an Adirondack stream throughout the temperate growing season to understand from where stream consumers derived energy, how food quality varied among resources, and whether these patterns shifted seasonally. In spite of major seasonal shifts in environmental factors, such as light availability and temperature, we found limited seasonal variation in the FA composition of basal resources and macroinvertebrates. Instead, we found consistent differences in FA composition between aquatic and terrestrial basal resources and between macroinvertebrate functional feeding groups. Foodweb structure also was consistent throughout the growing season, and macroinvertebrates and fish relied on a mix of terrestrial and aquatic resources. Our results suggest that stream consumers in heavily forested reaches rely upon lowquality terrestrial resources supplemented with higher-quality aquatic resources throughout the year.

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“…Despite their common association with the benthos, these species exhibit different body shape and diets. Campostoma and some Nocomis consume mostly filamentous algae (Power, Matthews & Stewart, 1985;Power, Stewart & Matthews, 1988;German et al, 2009), whereas the others consume mostly benthic insects (Hambrick, Jenkins & Wilson, 1975;Pappantoniou & Dale, 1982;German et al, 2009). In contrast, the pelagic species are distributed across several more speciose clades such as those containing Notropis (90), Luxilus (9) and Cyprinella (32), among others (Hollingsworth et al, 2013;www.fishbase.org).…”

Section: Introductionmentioning

confidence: 99%

Ecological clustering within a diverse minnow assemblage according to morphological, dietary and isotopic data

2016

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1. The ecological role of an organism is a complex interaction between many factors, such as morphology, behaviour and physiology, which can act as functional constraints upon how an organism engages with the environment. 2. We examined the ecological roles, guild structure and ecological convergence among 15 sympatric minnow species (Cyprinidae) in the New River (North Carolina, U.S.A.). Minnows often dominate fish species diversity and biomass in North American streams. 3. We evaluated the ecological relationships among minnows using popular methods that correspond to different aspects of minnow biology: geometric morphometrics (landmark-based PCA), gut content analysis and stable isotopes ( 13 C, 15 N, 2 H). We then tested for clustering (i.e. guilds) and convergence among minnows using these traits. 4. Important shape variation among species was primarily associated with mouth orientation and caudal peduncle morphology, implicating the importance of trophic and activity patterns. Minnows clustered into five guilds based on body shape. Gut contents revealed three discrete guilds: pelagicand benthic-oriented invertivory and benthic herbivory. Stable isotopes revealed only two discrete guilds: algivory and invertivory; however, all minnows preferentially assimilated invertebrates. 5. Minnows thus exhibit dynamic ecologies based largely on utilisation of the benthic-pelagic resource axis.

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Comparative Food Habits of Two Minnow Species: Blacknose Dace,Rhinichthys atratulus andLongnose Dace,Rhinichthys cataractae

Cited by 13 publications

References 3 publications

Feeding ecology of three predacious aquatic insects and two fish in a riffle of the Speed River, Ontario

Feeding ecology of three predacious aquatic insects and two fish in a riffle of the Speed River, Ontario

Limited seasonal variation in food quality and foodweb structure in an Adirondack stream: insights from fatty acids

Ecological clustering within a diverse minnow assemblage according to morphological, dietary and isotopic data

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