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Filtering by: Creator Arismendi, I. Resource Type Article

Are salmon-derived nutrients being incorporated in food webs of invaded streams? Evidence from southern Chile

Creator:

Arismendi, I. and Soto, D.

Abstract:

Using stable isotope analyses of N and C we present preliminary evidence of marine-derived nutrients from introduced Chinook salmon (Oncorhynchus tshawytscha Walbaum) in stream food webs of Laguna Los Patos, NW Patagonia. Similar to values reported within Chinook salmon's native distributional range periphyton and aquatic insects are the trophic levels...

Resource Type:

Article
Technical Note: Higher-order statistical moments and a procedure that detects potentially anomalous years as two alternative methods describing alterations in continuous environmental data

Creator:

Arismendi, I., Johnson, S. L., and Dunham, J. B.

Abstract:

Statistics of central tendency and dispersion may not capture relevant or desired characteristics of the distribution of continuous phenomena and, thus, they may not adequately describe temporal patterns of change. Here, we present two methodological approaches that can help to identify temporal changes in environmental regimes. First, we use higher-order...

Resource Type:

Article