Results 71 to 80 of about 31,301 (243)

Point, alpha and beta diversity of carnivorous fish along a depth gradient [PDF]

open access: yesAquatic Living Resources, 2002
The catch from bottom longline stations sampled from a series of research cruises around Lanzarote and Fuerteventura (Canary Islands, NE Atlantic) was analysed in terms of fish distribution, density and diversity. The distribution of the number of species and individuals caught per station appeared to fit well the Poisson and Exponential distribution ...
Lorance, Pascal   +2 more
openaire   +2 more sources

Wildfires' Cost for Societal Welfare: Economic Evaluation of Forestry Ecosystem Services Losses in Southern Italy

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Forest ecosystem services (ESs) are garnering increasing public attention as awareness grows regarding society's fundamental dependence on them for well‐being. Forest fires, one of the major disturbances of ESs, are becoming more frequent and destructive, exacerbated in part by climate change.
Emanuele Spada   +6 more
wiley   +1 more source

Effectiveness assessment of using water environmental microHI to predict the health status of wild fish

open access: yesFrontiers in Microbiology
Aquatic wildlife health assessment is critically important for aquatic wildlife conservation. However, the health assessment of aquatic wildlife (especially aquatic wild animals) is difficult and often accompanied by invasive survey activities and ...
Haile Yang   +8 more
doaj   +1 more source

Long-term transportation of juvenile pacamãs Lophiosilurus alexandri at different densities

open access: yesActa Scientiarum: Technology, 2017
This study aimed to evaluate the effects of long-term transportation of juvenile pacamã at different densities. The transportation lasted 11 hours at densities of 40, 55, and 70 juveniles (2.1±0.6 g weight) per bag containing 8 L of water.
Rodrigo Diana Navarro   +4 more
doaj   +1 more source

Emergent global patterns of ecosystem structure and function from a mechanistic general ecosystem model [PDF]

open access: yes, 2014
Anthropogenic activities are causing widespread degradation of ecosystems worldwide, threatening the ecosystem services upon which all human life depends.
A Friedlander   +109 more
core   +4 more sources

The IceShark, an effective method for sampling plankton under sea ice

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Seasonal sea ice plays a crucial role in shaping coastal ecosystem dynamics throughout the circumpolar region. Of particular interest to oceanographers is the ice‐ocean interface which functions as a multidimensional habitat, supporting both sympagic algae and pelagic phytoplankton in the under‐ice surface waters.
Eleanor A. Barry   +4 more
wiley   +1 more source

Seasonal variations in planktonic food web structure affect stability by shifting the distribution of energy fluxes

open access: yesOikos, EarlyView.
Seasonality in temperate ecosystems shapes species phenology, influencing interactions and food web structure. Variations in species richness and biomass affect trophic interaction strength, a crucial factor for community stability, which can be assessed through energy fluxes – an essential indicator of ecosystem function.
Simon Bazin   +4 more
wiley   +1 more source

Religion and Regulatory Variance: Halal Regimes as Islamic Public Administration

open access: yesPublic Administration and Development, EarlyView.
ABSTRACT One quarter of humanity are Muslims, for whom halal food is an everyday consideration. The global food system has made assessing food products nearly impossible for consumers, requiring elaborate regulatory regimes. This article analyzes halal regulation as a notable example of Islamic public administration (IPA), as an application of ...
Logan Cochrane   +2 more
wiley   +1 more source

Effect of dietary plant proteins on flesh quality traits of rainbow trout (Oncorhynchus mykiss)

open access: yesItalian Journal of Animal Science, 2011
The reduction of fish meal in aquaculture feeds is a priority goal for the further expansion and sustainability of the farmed fish production. Some encouraging results, also in carnivorous species as salmonids, are obtained by partial and even total ...
B.M. Poli   +6 more
doaj   +1 more source

Parasites and non-fish predators of tilapia with particular reference to the sustainable management of fisheries of Lake Kainji Nigeria [PDF]

open access: yes, 2001
The fisheries of Lake Kainji, Nigeria, experienced a boom year following impoundment, then decline post impoundment and now is in a period of stabilisation of the fish resources. Several reasons have been advanced on factors responsible for these changes,
Obiekezie, A.   +2 more
core  

Home - About - Disclaimer - Privacy