Habitat partitioning by native and alien fishes and decapods in novel habitats of the upper San Francisco Estuary

Young, Matthew J.; Berridge, Kathleen A.; O’Rear, Teejay A.; Moyle, Peter B.; Durand, John R.

doi:10.1007/s10530-017-1477-2

Cited by 8 publications

(2 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nekton were generally more abundant in the intermediate, low exchange zone. Shrimp were almost exclusively observed in the low exchange zone and at concentrations rarely observed in the San Francisco Estuary, particularly in pelagic habitats (T. Brown & Hieb, 2014; Young et al, 2017). This could reflect a strong affinity for turbidity, unmeasured food availability related to detrital accumulation, larval retention and local recruitment, or some other unmeasured habitat association.…”

Section: Discussionmentioning

confidence: 99%

Hydrodynamics drive pelagic communities and food web structure in a tidal environment

et al. 2020

Self Cite

View full text Add to dashboard Cite

Hydrodynamic processes can lead to the accumulation and/or dispersal of water column constituents, including sediment, phytoplankton, and particulate detritus. Using a combination of field observations and stable isotope tracing tools, we identified how hydrodynamic processes influenced physical habitat, pelagic communities, and food web structure in a freshwater tidal system. The pelagic habitat of a terminal channel differed spatially, likely aligning with differences in hydrodynamics. Three zones that we classified by exchange with downstream habitat had distinct water quality characteristics, supported different densities of zooplankton and nekton, and exhibited disparate support from benthic and pelagic trophic pathways to pelagic consumers. Hydrodynamically driven zones and their emergent characteristics appeared sensitive to hydrology, as elevated runoff was correlated with a shift in hydrodynamic habitat and organismal distributions. The results of our study highlight the relationship between hydrodynamic processes, biological responses, and climate, and suggest that understanding the physical process can improve understanding of pelagic habitats and communities.

show abstract

Section: Discussionmentioning

confidence: 99%

Hydrodynamics drive pelagic communities and food web structure in a tidal environment

et al. 2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…The dominant fish prey items (Gobiidae, Prickly Sculpin, Threespine Stickleback) are locally abundant but generally poorly sampled by existing surveys and studies, including an extensive sampling of the fish community in and around Ryer Island . This makes it difficult to assess relative abundance of prey items in the environment; however, the relative abundance of gobies and sculpins matches what is known from nearby Suisun Marsh (Young et al 2017;O'Rear et al 2021).…”

Section: Seasonal and Habitat Variabilitymentioning

confidence: 99%

Habitat-Specific Foraging by Striped Bass (Morone saxatilis) in the San Francisco Estuary, California: Implications for Tidal Restoration

Young¹,

Feyrer²,

Smith³

et al. 2022

SFEWS

View full text Add to dashboard Cite

Non-native predatory fish strongly affect aquatic communities, and anthropogenic habitat alterations can exacerbate their effects. Loss of natural habitat, and restoration actions that reverse habitat loss, can modify relationships between non-native predators and prey. Predicting how these relationships will change is often difficult because insufficient information exists on the habitat-specific feeding ecology of non-native predators. To address this information gap, we examined diets of non-native Striped Bass (Morone saxatilis; 63–671 mm standard length; estimated age 1–5 y) in the San Francisco Estuary during spring and summer in three habitat types—marsh, shoal, and channel—with the marsh habitat type serving as a model for ongoing and future restoration. Based on a prey-specific index of relative importance, Striped Bass diets were dominated by macroinvertebrates in spring and summer (amphipods in spring, decapods and isopods in summer). In spring, diets were relatively consistent across habitats. In summer, marsh diets were dominated by sphaeromatid isopods and shoal/channel diets by idoteid amphipods and decapods. Striped Bass consumed a variety of native and non-native fishes, primarily Prickly Sculpin (Cottus asper) and Gobiidae. The highest importance of fish prey was in the marsh in spring (~ 40% prey weight), and fish prey comprised less than 25% prey weight in all other season/habitat combinations. Linear discriminant analyses suggested that marsh foraging was prevalent in Striped Bass collected in other habitats, mostly because of the predominance of marsh-associated invertebrates found in the stomachs of individual Striped Bass collected outside the marsh. Striped Bass diets differ across habitats, with marsh foraging important to Striped Bass regardless of collection location. This information can be used to forecast the potential utilization of restored habitats by this non-native piscivore.

show abstract

Non‐native Fishes in Estuaries

Moyle¹,

Stompe²

2022

Fish and Fisheries in Estuaries

View full text Add to dashboard Cite

Habitat partitioning by native and alien fishes and decapods in novel habitats of the upper San Francisco Estuary

Cited by 8 publications

References 58 publications

Hydrodynamics drive pelagic communities and food web structure in a tidal environment

Hydrodynamics drive pelagic communities and food web structure in a tidal environment

Habitat-Specific Foraging by Striped Bass (Morone saxatilis) in the San Francisco Estuary, California: Implications for Tidal Restoration

Non‐native Fishes in Estuaries

Contact Info

Product

Resources

About