Essays about: "Juvenile"

Showing result 16 - 20 of 130 essays containing the word Juvenile.

  1. 16. Dispersal and habitat use of juvenile brown trout (Salmo trutta) following egg stocking : -A case study in the river Rotälven, Sweden

    University essay from Karlstads universitet/Institutionen för miljö- och livsvetenskaper (from 2013)

    Author : Jonathan Larsson; [2022]
    Keywords : brown trout; egg stocking; dispersal; alevin; fry; parr; redd; habitat preference; Öring; romutsättning; spridning; yngel; parr; habitatpreferens;

    Abstract : Egg stocking in rivers and streams is a common measure to support and re-introduce salmonid populations. To ensure the success of egg stocking programs, knowledge of the early life stages of juveniles including dispersal ability and habitat preferences of fry is a prerequisite. READ MORE

  3. 17. Petrography and Mineral Chemistry of the Sälskär Breccia (Alnö Alkaline Complex, Central Sweden)

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Vincent Gustafsson; [2022]
    Keywords : Alnö alkaline complex; diatreme; melilitite; pelletal lapilli; volcanic breccia; Alnö alkalina område; diatrem; melilitit; pelletal lapilli; vulkanisk breccia;

    Abstract : Primitive magmas can provide important details about the mantle from which they are derived. In this thesis, petrographic observations and new mineral chemistry analyses of the Sälskär breccia from the Alnö alkaline complex, central Sweden, are reported. READ MORE

  4. 18. How social behaviour in juvenile Brown trout (Salmo trutta) are regulated by social hierarchies and exposure to the benzodiazepine oxazepam

    University essay from SLU/Dept. of Forest Ecology and Management

    Author : Elin Johansson Kvarnström; [2022]
    Keywords : Behaviour; Brown trout; Dominance; Ecotoxicology; Exposure; Fish; Oxazepam; Pharmaceutical; Salmo trutta; Social status;

    Abstract : Improved global healthcare rises the production and consumption of human pharmaceuticals. Insufficient wastewater treatment systems and unregulated downstream impacts causes pharmaceutical contamination of surface waters with trace residues in countries covering all continents. READ MORE

  5. 19. A study of carbon, nitrogen, and biogenic silica concentrations in Cyperus papyrus, the sedge dominating the permanent swamp of the Okavango Delta, Botswana, Africa

    University essay from Lunds universitet/Geologiska institutionen

    Author : Giulia Lodi; [2022]
    Keywords : Okavango Delta; papyrus; total nitrogen; total organic carbon; biogenic silica; Earth and Environmental Sciences;

    Abstract : Okawangodeltat är södra Afrikas största våtmark och en av världens minst påverkade våtmarker. Kunskapen om hur våtmarkssystemet fungerar är begränsad, särskilt vad gäller halter av näringsämnen och omsättning av näringsämnen i de dominerande våtmarksväxterna. READ MORE

  6. 20. THE IMPACT OF SOCIAL DISORGANISATION ON DRUG USE AMONG YOUTH FROM A GENDER PERSPECTIVE : ARE BOYS AND GIRLS AFFECTED TO THE SAME EXTENT BY RISK FACTORS OF SOCIAL DISORGANISATION?

    University essay from Malmö universitet/Institutionen för kriminologi (KR)

    Author : Annika Riekwel; [2022]
    Keywords : Social Disorganisation; Gender; Risk Factors; Drug Use; Juvenile Delinquency; Delinquent Behaviour;

    Abstract :  Although the theory of social disorganisation does emphasise the influences neighbourhood dynamics have on youth, it does not consider if the risk factors of mobility, delinquent friends, ethnicity, and low socioeconomic factors, affect boys and girls in similar ways. The purpose and aim of this study is to contribute with gender-based research to the field of criminology that can be used when developing interventions among juveniles with delinquent behaviour. READ MORE