2022 Early Hearing Detection & Intervention Virtual Conference
March 13 - 15, 2022
5/21/2018 | 2:00 PM - 2:15 PM | DEATH AND DECOMPOSITION IN AQUATIC ECOSYSTEMS | 321
DEATH AND DECOMPOSITION IN AQUATIC ECOSYSTEMS
Resource subsidies affect food webs, nutrient cycling, and community interactions, but their effects depend on natural history, magnitude, and recurrence. In aquatic ecosystems, plant detritus is considered a predominant form of subsidies; however, while less abundant in many ecosystems, carrion represents subsidies with relatively rapid turnover and concentrated nutrient and energy release that can have lasting effects on ecosystems. Carrion subsidies come in the form of phenology-based frequency (e.g., salmon spawning and death) or as stochastic and episodic (e.g., fish kills). Some aquatic ecosystems have a natural history of carrion resource subsidies (e.g., natural salmon-bearing streams), while others have recent introductions of phenology-based carrion subsidies (e.g., salmon introductions around the world). Other ecosystems only experience episodic subsidies in the form of unexpected mass mortalities (e.g., eutrophication- or disease-related fish kills). The responses of ecosystems to these different histories and frequencies of carrion subsidies have often been investigated independently, with little effort to compare and bridge research boundaries in the broader context of resource subsidies. We review carrion resource subsidies and compare characteristics such as frequency and turnover to other forms of detritus in aquatic ecosystems.
- Subsidy
- Allochthonous
- Detritus
Presentation:
This presentation has not yet been uploaded.
Handouts:
Handout is not Available
Transcripts:
CART transcripts are NOT YET available, but will be posted shortly after the conference
Presenters/Authors
M. Eric Benbow
(), Michigan State University, benbow@msu.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Gary Lamberti
(), University of Notre Dame, glambert@nd.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -