Stable isotope evidence for the food web consequences of species invasions in lakes

Zanden, M. Jake Vander; Casselman, John M.; Rasmussen, Joseph B.

doi:10.1038/46762

Cited by 791 publications

(644 citation statements)

References 20 publications

Supporting

Mentioning

616

Contrasting

Unclassified

Order By: Relevance

“…where TP YFi is the estimated trophic position for Yellowfin Tuna at the site of sample i, (Vander Zanden and Rasmussen 1999). We used zooplankton as the isotopic baseline for the primary consumers when calculating the trophic position of the Yellowfin Tuna.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Feeding Ecology of Juvenile Yellowfin Tuna from Waters Southwest of Taiwan Inferred from Stomach Contents and Stable Isotope Analysis

et al. 2015

View full text Add to dashboard Cite

The Yellowfin Tuna Thunnus albacares is one of the major fish species caught around subsurface fish aggregation devices (FADs) in the waters southwest of Taiwan. However, how it interacts with other organisms around FADs is poorly known. In this study, the diet and feeding habits of juvenile Yellowfin Tuna were estimated from the analysis of stomach contents from 1,477 specimens with FLs ranging from 24 to 108 cm and stable isotope analysis (202 specimens) collected around FADs in the waters southwest of Taiwan. The analysis of stomach contents indicated that juvenile Yellowfin Tuna with FL < 50 cm mainly feed on larval purpleback flying squid Sthenoteuthis oualaniensis, larval shrimps, and zooplanktonic organisms such as amphipods. Yellowfin Tuna with FL of ∼50 cm switch their diet to teleost fishes such as Japanese Barracudina Lestrolepis japonica, Skinnycheek Lanternfish Benthosema pterotum, and fishes in the families Exocoetidae and Scombridae. Stable isotope analysis indicated that the δ15N values ranged between 6.2‰ and 12.6‰, and the estimated trophic position varied from 3.18 ± 0.24 for tuna with FL < 30 cm, while it reached 4.59 ± 0.50 for those with FL > 50 cm and 4.75 ± 0.06 for those with FL > 90 cm. Based on the distinct diet shift of the juvenile Yellowfin Tuna, demonstrated by both stomach contents and stable isotope analyses, this study concluded that the tuna shift their diet at approximately 50 cm FL. Received March 31, 2015; accepted September 9, 2015

show abstract

mentioning

confidence: 99%

“…Therefore, the following equation was used to estimate the trophic position (TP) of Yellowfin Tuna (Vander Zanden and Rasmussen 1999;Olson et al 2010):…”

mentioning

confidence: 99%

Feeding Ecology of Juvenile Yellowfin Tuna from Waters Southwest of Taiwan Inferred from Stomach Contents and Stable Isotope Analysis

et al. 2015

View full text Add to dashboard Cite

show abstract

“…The introduction of nonnative fish species has greatly altered food web structure in freshwater lakes (Vander Zanden et al 1999). Widespread fish introductions have been used to enhance recreational fisheries and provide a source of sustenance across the world (Casal 2006).…”

Section: Stressors: Fish Introductionsmentioning

confidence: 99%

The Response of Zooplankton Communities in Montane Lakes of Different Fish Stocking Histories to Atmospheric Nitrogen Deposition Simulations

Brittain¹

2000

View full text Add to dashboard Cite

Freshwater ecosystems are subject to a wide variety of stressors, which can have complex interactions and result in ecological surprises. Non-native fish introductions have drastically reduced the number of naturally fishless lakes and have resulted in cascading food web repercussions in aquatic and terrestrial habitats. Additional anthropogenic influences that result from increases in global airborne emissions also threaten wildlife habitat. Atmospheric nitrogen deposition has been recognized as an anthropogenic contributor to acidification and eutrophication of wilderness ecosystems.Planktonic communities have shown declines in response to predation and shifts in composition as a result of nutrient inputs and acidification, both of which are potential fates of nitrogen deposition. This study identified the response of zooplankton communities from two lakes (fish present vs. absent) in Mount Rainier National Park to manipulations simulating an episodic disturbance event in mesocosms. The experiment used a 2 x 2 factorial design with acid and nitrogen treatments. Treatments resulted in significantly elevated nitrogen and decreased pH conditions from control mesocosms over 42 days, indicating that the treatment effects were achieved. Results indicate that zooplankton communities from lakes with different food web structure respond differently to the singular effects of acid and nitrogen addition. Surprisingly, the interaction of the two stressors was related to increases in community metrics (e.g., abundance, biomass, body size, richness, and Shannon-Weiner diversity) for both lake types. This work can aid management decisions as agencies look to restore more aquatic montane habitats to their historic fishless states, and assess their abilities to recover and afford resistance to atmospheric pollution.ii

show abstract

“…to describe major flow pathways of organic matter in food webs, to follow animal movements and migrations, to describe dietary shifts and food webs, to compare feeding strategies among individual animals, or to monitor watershedlevel processes such as inputs from terrestrial organic material to aquatic systems Epstein 1978, 1981;Gannes et al 1997;Vander Zanden and Rasmussen 1999;Schmidt et al 2011). SI techniques have already been used to understand trophic dynamics of BC and SC, but often in confined environments such as ponds and cages (Gu et al 1996;Zhou et al 2009a, b), and to analyze dietary overlap with endemic species in places where these carps are exotic (Sampson et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Co-occurring bighead and silver carps show similar food preference but different isotopic niche overlap in different lakes

Jayasinghe

García‐Berthou

et al. 2014

Environ Biol Fish

View full text Add to dashboard Cite

Silver carp (Hypophthalmichthys molitrix) and bighead carp (Hypophthalmichthys nobilis) are among the most important fish species in aquaculture and have been introduced to many countries. The feeding ecology of these filter-feeding cyprinids is not well understood and has been mostly based on gut content analyses. We analyzed δ 13 C and δ 15 N stable isotope ratios of food resources and fish muscle tissues in four Chinese lakes, where these two species co-occur. Data analysis through Bayesian mixing models revealed that both fish species had similar diets within lakes, and where dietary shifts occurred, both species displayed dietary shifts simultaneously. Diet was generally based on plankton, however, detritus was the main food in eutrophic lake subjected to urban pollution, likely due to resource availability. Niche overlap and width were also variable but in general clear size-based resource partitioning was observed, with bighead carp preying more on zooplankton and occupying a higher trophic position and silver carp feeding more on phytoplankton. Food particles smaller than 64 μm, had little importance in their diets.

show abstract

Stable isotope evidence for the food web consequences of species invasions in lakes

Cited by 791 publications

References 20 publications

Feeding Ecology of Juvenile Yellowfin Tuna from Waters Southwest of Taiwan Inferred from Stomach Contents and Stable Isotope Analysis

Feeding Ecology of Juvenile Yellowfin Tuna from Waters Southwest of Taiwan Inferred from Stomach Contents and Stable Isotope Analysis

The Response of Zooplankton Communities in Montane Lakes of Different Fish Stocking Histories to Atmospheric Nitrogen Deposition Simulations

Co-occurring bighead and silver carps show similar food preference but different isotopic niche overlap in different lakes

Contact Info

Product

Resources

About