Results 11 to 20 of about 89,253 (200)

Fish stomach contents in benthic macroinvertebrate assemblage assessments

open access: yesBrazilian Journal of Biology
The choice of sampling gears to assess benthic macroinvertebrate communities depends on environmental characteristics, study objectives, and cost effectiveness.
TH. Tupinambás   +4 more
doaj   +2 more sources

Fatty Acids and Stomach Contents Reveal Dietary Overlaps of Two Prospering Squid Species in the North Sea. [PDF]

open access: yesEcol Evol
Worldwide, the distribution ranges of cephalopods are expanding due to climate change. In the North Sea, the broadtail shortfin squid Illex coindetii (Ommastrephidae) has recently established a successful breeding population and now coexists with the ...
Rittinghaus H   +4 more
europepmc   +3 more sources

Feeding habits of the spider crab Libinia spinosa H. Milne Edwards, 1834 (Decapoda, Brachyura) in Ubatuba bay, São Paulo, Brazil

open access: yesBrazilian Archives of Biology and Technology, 2008
The main goal of this study was the identification of the items of the diet of the L. spinosa, based on the stomach contents analysis. The crabs were obtained from Ubatuba region north-eastern shore of São Paulo State.
Samara de Paiva Barros   +2 more
doaj   +1 more source

Multiple Approaches to the Trophic Role of Mesopelagic Fish around the Iberian Peninsula

open access: yesAnimals, 2023
Myctophids, commonly vertical migrators, and partial and non-migrant stomiiforms constitute most of the mesopelagic biomass, and transport organic matter throughout the food web from the surface to the ocean’s depths.
Ainhoa Bernal   +2 more
doaj   +1 more source

Feeding ecology of electric eel Electrophorus varii (Gymnotiformes: Gymnotidae) in the Curiaú River Basin, Eastern Amazon [PDF]

open access: yesNeotropical Ichthyology, 2020
In this study, the composition of the diet and the feeding activity of Electrophorus varii were evaluated. The influence of ontogeny and seasonality in these feeding parameters was also examined.
Raimundo Nonato Gomes Mendes-Júnior   +4 more
doaj   +1 more source

Stranded dolphin stomach contents represent the free-ranging population's diet. [PDF]

open access: yesBiol Lett, 2013
Diet is a fundamental aspect of animal ecology. Cetacean prey species are generally identified by examining stomach contents of stranded individuals. Critical uncertainty in these studies is whether samples from stranded animals are representative of ...
Dunshea G   +6 more
europepmc   +2 more sources

Stomach flushing technique applied to quantify microplastics in Crocodilians

open access: yesMethodsX, 2019
The impact of microplastics on wildlife is a recent problem for which methods to evaluate exposure still need development. Being able to identify and quantify microplastics (particles < 5 mm) in the gastric contents of live crocodiles allows us to ...
Mauricio Gonzalez-Jauregui   +5 more
doaj   +1 more source

The evaluation of potentially toxic elements using artificial neural networks and fuzzy linear regression analysis methods in cappadocian volcanic ash soils of Turkey

open access: yesHeliyon, 2023
The aim of this study is to determine the relationships between some potentially toxic elements (PTE) (Cu, Mn, Ni, Zn) in human stomach and intestinal tissues and toxic element contents in soil, vegetables and fruits.
Kenan Kılıç, Derviş Topuz
doaj   +1 more source

Feeding habits of the leopard grouper, Mycteroperca rosacea (Actinopterygii: Perciformes: Epinephelidae), in the central Gulf of California, BCS, Mexico [PDF]

open access: yesActa Ichthyologica et Piscatoria, 2019
Background. The leopard grouper, Mycteroperca rosacea (Streets, 1877), is endemic to north-western Mexico and has high commercial value. Although facts of its basic biology are known, information on its trophic ecology, in particular, is scarce.
X.G. Moreno-Sánchez   +5 more
doaj   +3 more sources

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