Contribution of macro- and micro-consumers to the decomposition of fish carcasses in low-order streams: an experimental study

Fenoglio, Stefano; Bo, Tiziano; Cammarata, Massimo; Malacarne, Giorgio; Frate, G. Del

doi:10.1007/s10750-009-9998-z

Cited by 21 publications

(16 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…spawning runs, leading to the conclusion that unlike Pacific salmon, which import nutrients to the base of the food web, shad are more likely to influence the top of the food web as prey (Flecker et al., ; MacAvoy, Garmin, & Macko, ). Decomposing trout carcasses in the Rio Gambarello, Italy, contained Chironomids at densities of 110/carcass (Fenoglio, Bo, Cammarata, Malacarne, & Del Frate, ). Decomposing shad could also provide food for chironomids, an important prey item of juvenile salmon.…”

Section: Discussionmentioning

confidence: 99%

From salmon to shad: Shifting sources of marine‐derived nutrients in the Columbia River Basin

Haskell

2017

Ecology of Freshwater Fish

View full text Add to dashboard Cite

Like Pacific salmon (Oncorhynchus spp.), nonnative American shad (Alosa sapidissima) have the potential to convey large quantities of nutrients between the Pacific Ocean and freshwater spawning areas in the Columbia River Basin (CRB). American shad are now the most numerous anadromous fish in the CRB, yet the magnitude of the resulting nutrient flux owing to the shift from salmon to shad is unknown. Nutrient flux models revealed that American shad conveyed over 15,000 kg of nitrogen (N) and 3,000 kg of phosphorus (P) annually to John Day Reservoir, the largest mainstem reservoir in the lower Columbia River. Shad were net importers of N, with juveniles and postspawners exporting just 31% of the N imported by adults. Shad were usually net importers of P, with juveniles and postspawners exporting 46% of the P imported by adults on average. American shad contributed <0.2% of the total annual P load into John Day Reservoir, but during June when most adult shad are migrating into John Day Reservoir, they contributed as much as 2.0% of the P load. Nutrient inputs by American shad were similar to current but far less than historical inputs of Pacific salmon owing to their smaller size. Given the relatively high background P levels and low retention times in lower Columbia River reservoirs, it is unlikely that shad marinederived nutrients affect nutrient balances or food web productivity through autotrophic pathways. However, a better understanding of shad spawning aggregations in the CRB is needed. K E Y W O R D Saquatic food webs, lake and reservoir management, nonnative species, nutrients, salmon, shad | INTRODUCTIONAnadromous fish are vectors of nutrient transport between marine and freshwater food webs. This phenomenon has been well documented for Pacific salmon (Oncorhynchus spp.; Holtgrieve & Schindler, 2011;Rex & Petticrew, 2008;Scheuerell, Levin, Zabel, Williams, & Sanderson, 2005;Vanni, 2002;Wipfli, Hudson, & Caouette, 1998), but is less explored for other anadromous fish. Pacific salmon are large-bodied nutrient vectors that contribute 3.0% of their body mass as nitrogen (N) and 0.36% of their body mass as phosphorus (P) in the form of excretions, gametes and carcasses to freshwater areas where they spawn (Brock, Leavitt, Schindler, & Quay, 2007). These nutrients can benefit progeny by increasing the productivity of rearing grounds but can also influence the productivity of entire ecosystems at multiple trophic levels. The decline of once great salmon runs in the Columbia River Basin (CRB) has reduced salmon-derived nutrient inputs to spawning grounds. Columbia River Basin salmon once numbered from 11 to 16 million per year and imported millions of kg of N and hundreds of thousands of kg of P annually (Gresh, Lichatowich, & Schoonmaker, 2000). These nutrient inputs have decreased by 90% with an associated decline in the productivity of salmon spawning grounds. This loss in productivity could inhibit ongoing salmon restoration efforts. In response, salmon restoration programmes annually supplement sp...

show abstract

Section: Discussionmentioning

confidence: 99%

From salmon to shad: Shifting sources of marine‐derived nutrients in the Columbia River Basin

Haskell

2017

Ecology of Freshwater Fish

View full text Add to dashboard Cite

show abstract

“…This process continues even beyond the dry remains stage as the bones still undergo decomposition although at a much slower rate as previously seen. In the end, the whole decomposition process allows the recycling of energy flow and nutrient into the surrounding ecosystem (Fenoglio et al 2010;Tibbett & Carter 2009). …”

Section: Introductionmentioning

confidence: 99%

Decomposition Process and Post Mortem Changes: Review

Teo¹,

Hamzah²,

Hing³

et al. 2014

JSM

View full text Add to dashboard Cite

show abstract

“…Some authors pointed out that the energy available for growth may be 34% and 41% in two different species of Plecoptera (in Zwick 1980). Within the detritivorous pathway, stoneflies may also participate in the decomposition process of dead animals, as suggested by Fenoglio et al (2005) in an in situ experiment carried out with fish carcasses, although micro-consumers seem to have more importance in the process (Fenoglio et al 2010a).…”

Section: Trophic Role Of Stonefly Nymphs In Ecosystemsmentioning

confidence: 98%

Trophic ecology of Plecoptera (Insecta): a review

Figueroa

López‐Rodríguez

2019

The European Zoological Journal

View full text Add to dashboard Cite

We here review the current knowledge on the trophic ecology of stoneflies, an aquatic insect group of substantial ecological importance in lotic systems. We provide information on the feeding habits of nymphs and adults of the different families and highlight those studies that support particularly interesting findings. Regarding nymphs, we discuss the state of the art on aspects such as foraging strategies and behaviours, food acquisition mechanisms, the existence or absence of electivity for certain trophic resources, and enzymatic activity and its relationship with the assimilation efficiency of food. For adults, we highlight the differential importance of feeding among taxa. For both nymphs and adults, we report what is known about their role in aquatic and terrestrial food webs. Finally, we present some of the gaps on the trophic ecology of these insects and provide some research agendas that could be carried out to fill them.

show abstract

Contribution of macro- and micro-consumers to the decomposition of fish carcasses in low-order streams: an experimental study

Cited by 21 publications

References 47 publications

From salmon to shad: Shifting sources of marine‐derived nutrients in the Columbia River Basin

From salmon to shad: Shifting sources of marine‐derived nutrients in the Columbia River Basin

Decomposition Process and Post Mortem Changes: Review

Trophic ecology of Plecoptera (Insecta): a review

Contact Info

Product

Resources

About