451 datasets found

The Benguela upwelling system is one of the most productive marine ecosystems in the world; however, little is known about the community structure of mesopelagic fishes in its...

This data set has biological measurements and stomach content analysis for fourteen specimens of Centrolophus niger which were frozen whole at sea during the Icelandic part of...

Fractional trophic levels (i.e., trophic positions) describe the position of organisms within food webs and help define their functional roles in ecosystems (Odum & Heald,...

Organisms accumulate major and trace elements (including metals) directly from the external environment and/or indirectly through diet. As such, their elemental composition can...

Fatty acid (FA) composition has increasingly been used to estimate the dietary preference of marine organisms. Specific fatty acids and fatty acid ratios serve as trophic...

Quantitative data on diet composition is key to understand prey–predator interactions and to parameterize ecosystem models. We compiled estimates of diet proportions from 26...

Information on the energy density of prey is critical for estimating food requirements and consumption by predators and modelling energy flux through food webs (Van de Putte et...

This data set contains the physiological data of Wilson's Storm-petrel (Oceanites oceanicus, https://www.marinespecies.org/aphia.php?p=taxdetails&id=137190) chicks at a...

Here we present the elementary composition [ln(Fe/K) and ln(Al/K)] from suspendend sediment samples for Negro, Solimões and Amazon Rivers (northern and south channels) during a...

The dataset contains 108 records of major and trace element concentrations measured on (eviscerated) whole bodies of meso- to bathypelagic fish (19 species), decapods (4...

The dataset contains 361 records of energy density values measured on (eviscerated) whole bodies of meso- to bathypelagic fish (49 species), decapods (4 species) and euphausiids...

The leaf area of macroalgae was surveyed at Hansneset, Blomstrand in Kongsfjorden, Svalbard, from the 2.5 m down to 15 m depth in summer 2012 and 2021. Our goal was to document...

Kelp age and density was recorded at Hansneset, Blomstrand in Kongsfjorden, Svalbard, at 2.5, 5, 10 and 15m depth in Summer 2013 and 2021. Our goal was to document changes in...

Macroalgal fresh biomass was surveyed at Hansneset, Blomstrand in Kongsfjorden, Svalbard, from the infralittoral fringe down to 15 m depth in summer 2012, 2013 and 2021. This...

This file contains data on mesopelagic fish stomach content reported as the number of prey categories in each fish stomach and their carbon masses. These data come from samples...

Stable isotope analysis (SIA) has emerged as a valuable tool for understanding the trophic structure of the marine food web and gaining insights into trophic levels and niche....

This dataset provides the values of stable carbon and nitrogen stable isotopes in bulk muscle samples of 11 species of cetacea from the Macaronesian regions (Canary, Madeira,...

This data set has trawl catch weight and biological measurements from the latter half of the Icelandic part of the International Ecosystem Summer Survey in Nordic Seas (IESSNS)...

The dataset contains the concentrations of 11 essential elements (micro-nutrients) analysed in whole bodies of 78 forage species sampled on the continental shelf or in the...

Between 2006 and 2015 inorganic and organic hydrochemical parameters and stable water isotope characteristics were measured in lakes and ponds in continuous permafrost...