Diet Selectivity in the Johnny Darter,<i>Etheostoma Nigrum</i>, in Stinking Fork, Indiana

Strange, Rex Meade

doi:10.1080/02705060.1991.9665317

Cited by 8 publications

(8 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Because stomach contents were only identified to family, estimates of diet breadth were likely severely underestimated. Prey items identified were consistent with those reported in other studies of darters (Baker 2002, Carney and Burr 1989, Fisher 1990, Johnson and Hatch 1991, Knight and Ross 1994, Rohde and Ross 1987, Strange 1991. Finally, the frequency of empty stomachs for E. chermocki (7.4%) corresponded well with a global average of empty stomachs for diurnal invertivores (10.5 k 1.4 [mean + 1 SE]) (Arrington et al 2002).…”

Section: Resultssupporting

confidence: 82%

Life History of the Endangered Vermilion Darter (Etheostoma chermocki) Endemic to the Black Warrior River System, Alabama

Khudamrongsawat

Arrington

Kuhajda

et al. 2005

Journal of Freshwater Ecology

View full text Add to dashboard Cite

show abstract

Section: Resultssupporting

confidence: 82%

Life History of the Endangered Vermilion Darter (Etheostoma chermocki) Endemic to the Black Warrior River System, Alabama

Khudamrongsawat

Arrington

Kuhajda

et al. 2005

Journal of Freshwater Ecology

View full text Add to dashboard Cite

show abstract

“…It is well documented that chironomids are very important to darter diets (Wehnes 1973;Schlosser and Toth 1984;Strange 1997). Meanwhile, darters are typically classified as opportunists feeding on an array of benthic invertebrates (Hlohowskyj and White 1983;Strange 1991;Strange 1993), because relative abundances of prey in the diets usually reflect those prey Although darters selected other non-chironomid taxa, like Isonychia sp., simuliids, and ceratopogonids, they fed opportunistically on the most abundantly available prey (i.e., the Chironomidae), causing PS values to be relatively high (near and above 0.60). Phillips and Kilambi (1996) found that Etheostoma spectabile fed exclusively on the family Chironomidae (r i = 99%) and exhibited active selection for chironomids when comparing their availability in the environment (Ivlev's Electivity Index [IE] = 0.03, where values near 0 represent active selection; values near 1.0 represent opportunists).…”

Section: Discussionmentioning

confidence: 98%

Selective predation by four darter (Percidae) species on larval chironomids (Diptera) from a Mississippi stream

Alford

Beckett

2006

Environ Biol Fish

View full text Add to dashboard Cite

We determined seasonal foraging modes of four sympatric darter species, Etheostoma lynceum, E. stigmaeum, E. swaini and Percina nigrofasciata, from Beaverdam Creek, Mississippi (USA) at two scales of taxonomic resolution: (1) chironomid prey identified to family and (2) chironomid prey identified to genus/species. When chironomids were identified to family, high proportional similarity (PS) and low niche breadth (NB) values suggested the darters fed opportunistically on a relatively small number of available prey taxa. In contrast, when chironomids were identified to genus/species, concordant low PS and NB values suggested the darters fed like classic specialists, selecting a small number of prey taxa relative to prey availability in the resource base. The darters selected just one to four chironomid taxa from 52 available taxa across seasons. Our study shows that the scale of taxonomic resolution used to identify darter prey may influence the characterization of darter foraging modes.

show abstract

“…As the latter are expected to occupy a higher trophic level, one would normally expect the δ 15 N of darter tissues to be lower as compared to larger fish species. Previous studies have shown both greenside and johnny darters to incorporate similar prey, such as midgefly larvae and chironomids in their diet [ 34 – 37 ]. So rather than dietary variation, the convergence of δ 15 N darter and trout/bass values may instead suggest a genuine deviation from the expected 3.4‰ trophic fractionation value proposed by Post [ 9 ], although this difference is nonetheless comparatively minor.…”

Section: Discussionmentioning

confidence: 99%

“…As mentioned previously, mussels are omnivorous and their food sources vary depending on their habitat, which likely results in correspondingly strong variations in the δ 13 C of food sources [ 37 ]. For example, mussels may filter-feed on zooplankton and phytoplankton from the open water column in streams, interstitially from the sediment, or pedal feed on bulk fractions of organic matter in sediment [ 21 , 34 ].…”

Section: Discussionmentioning

confidence: 99%

Tracing anthropogenic inputs in stream foods webs with stable carbon and nitrogen isotope systematics along an agricultural gradient

et al. 2018

View full text Add to dashboard Cite

Stable carbon (13C) and nitrogen isotopes (15N) are useful tools in determining the presence of agricultural influences in freshwater ecosystems. Here we examined δ15N and δ13C signatures in nitrate, fish, and mussel tissues, from rivers in Southern Ontario, Canada, that vary in their catchment proportion of agriculture land use, nutrients and organic matter quality. We found comparatively 15N-enriched δ15N values in animal tissues and dissolved nitrates, relative to expected values characterized by natural sources. We also observed a strong, positive correlation between riparian agriculture percentages and δ15N values in animal tissues and nitrates, indicating a significant influence of agricultural land use and the probable dominance of organic fertilizer and manure inputs in particular. The use of a 15N-based equation for the estimation of fish trophic position confirmed dietary analyses is showing all fish species to be tertiary consumers, with a relatively consistent 15N-enrichment in animal tissues between trophic levels. This indicates that variability in 15N-trophic fractionation is minor, and that fish and mussel tissue δ15N values are largely representative of source nitrogen. However, the trophic fractionation value varied from accepted literature values, suggesting strong influences from either local environmental conditions or dietary variation. The δ13C datasets did not correlate with riparian agriculture, and animal δ13C signatures in their tissues are consistent with terrestrial C3 vegetation, suggesting the dominance of allochthonous DOC sources. We found that changes in water chemistry and dissolved organic matter quality brought about by agricultural inputs were clearly expressed in the δ15N signatures of animal tissues from all trophic levels. As such, this study confirmed the source of anthropogenic nitrogen in the studied watersheds, and demonstrated that this agriculturally-derived nitrogen could be traced with δ15N signatures through successive trophic levels in local aquatic food webs. The δ13C data was less diagnostic of local agriculture, due to the more complex interplay of carbon cycling and environmental conditions.

show abstract

Diet Selectivity in the Johnny Darter,Etheostoma Nigrum, in Stinking Fork, Indiana

Cited by 8 publications

References 8 publications

Life History of the Endangered Vermilion Darter (Etheostoma chermocki) Endemic to the Black Warrior River System, Alabama

Life History of the Endangered Vermilion Darter (Etheostoma chermocki) Endemic to the Black Warrior River System, Alabama

Selective predation by four darter (Percidae) species on larval chironomids (Diptera) from a Mississippi stream

Tracing anthropogenic inputs in stream foods webs with stable carbon and nitrogen isotope systematics along an agricultural gradient

Contact Info

Product

Resources

About