Publications

/Publications

Advancing Ecosystem Based Fisheries Management

MareFrame publications in Fisheries Research Special Issue: Advancing Ecosystem Based Fisheries Management Edited by Gunnar Stefansson, Javier Ruiz, Sveinn Agnarsson, Ingrid van Putten Implementing the ecosystem based approach for fisheries management requires the development and

May 22nd, 2019|

Ecosystem Approach to Fisheries Management (EAFM) in the EU – Current science–policy–society interfaces and emerging requirements (peer reviewed publication)

Abstract The EU is aiming to apply an Ecosystem Approach (EA) to the management of all human activities in the marine environment, with the goal of establishing healthy and productive seas and oceans. This article

May 1st, 2017|

Biological and economic vulnerabilities of fixed TACs in small pelagics: An analysis of the European anchovy (Engraulis encrasicolus) in the Gulf of Cádiz (peer reviewed publication)

Abstract A coupled population dynamics and economic model is applied to the purse seine anchovy-fishery in the Gulf of Cádiz. The model simulates the population dynamics, landings and profits on a probabilistic frame. These simulations

April 1st, 2017|

Difference in learning among students doing pen-and-paper homework compared to web-based homework in an introductory statistics course (peer reviewed publication)

Abstract A repeated crossover experiment comparing learning among students handing in pen-and-paper homework (PPH) with students handing in web-based homework (WBH) has been conducted. The system used in the experiments, the tutor-web, has been used

February 8th, 2017|

Novel parallelization of simulated annealing and Hooke & Jeeves search algorithms for multicore systems with application to complex fisheries stock assessment models (peer reviewed publication)

Abstract Estimating parameters of a statistical fisheries assessment model typically involves a comparison of disparate datasets to a forward simulation model through a likelihood function. In all but trivial cases the estimations of these models

November 1st, 2016|

Consolidation and distribution of quota holdings in the Icelandic fisheries (peer reviewed publication)

Abstract The aim of this work is to measure the development of the concentration of quota holdings by harvesting companies and harbours in Iceland. For the period 1990–2014, the analysis traces the development of relative

October 1st, 2016|

No complexity–stability relationship in empirical ecosystems (peer reviewed publication)

Abstract Understanding the mechanisms responsible for stability and persistence of ecosystems is one of the greatest challenges in ecology. Robert May showed that, contrary to intuition, complex randomly built ecosystems are less likely to be

August 24th, 2016|

Institutional challenges for policy-making and fisheries advice to move to a full EAFM approach within the current governance structures for marine policies (peer reviewed publication)

Abstract The European Union is aiming to implement an Ecosystem Approach for the management of all human activities in the marine environment, hereunder the fisheries sector. Since the last reform of the Common Fisheries Policy

July 1st, 2016|

Consolidation and distribution of quota holdings in the Icelandic fisheries (peer reviewed publication)

Abstract The aim of this work is to measure the development of the concentration of quota holdings by harvesting companies and harbours in Iceland. For the period 1990–2014, the analysis traces the development of relative

May 1st, 2016|

The economic value of environmental data: a notional insurance scheme for the European anchovy (peer reviewed publication)

Abstract Anchovy population dynamics in the Gulf of Cádiz are governed by environmental processes. Sea surface temperature, intense easterly winds, and discharges from the Guadalquivir River have been identified as key factors determining early life

March 1st, 2016|

What hat are you wearing? On the multiple roles of fishery scientists in the ICES community (peer reviewed publication)

Abstract Trends towards a more participatory agenda in policy-relevant science imply that the roles and work tasks of scientists become more multifaceted. In Europe, the increased use of multiannual plans creates a need for fishery

February 1st, 2016|

Role of prey abundance and geographical variables in a demersal top predator’s feeding habits (Merluccius merluccius) (peer reviewed publication)

ABSTRACT Demersal predators can take advantage of a large pool of potential prey including benthic, demersal and pelagic species; therefore disentangling the variables that influence their diet is of key relevance for food web ecologists.

December 15th, 2015|

Agent based model of fisher behavior as a dynamic constraint resolution problem (paper in proceeding of a conference/workshop)

Abstract An agent-based approach for modelling fisher behavior as a dynamic constraint resolution problem is proposed. The fishers are modeled as agents tasked with optimizing different multi-objective utility functions over a search space subjected to

December 15th, 2015|

Design and Analysis of Experiments Linking on-line Drilling Methods to Improvements in Knowledge (peer reviewed publication)

ABSTRACT An on-line drilling system, the tutor-web, has been developed and used for teaching mathematics and statistics. The system was used in a basic course in calculus including 182 students. The students were requested to

June 28th, 2015|

Evaluating stock structure hypotheses using genetically determined close relatives: a simulation study on North Atlantic fin whales (peer reviewed publication)

Abstract Certain facets of the population dynamics of a species are hard to quantify, including stock structure. In particular, geographical boundaries of stocks or populations are often hard to estimate. This document discusses the application

January 1st, 2015|

From evaluation to learning: Some aspects of designing a cyber-university (peer reviewed publication)

Abstract Research is described on a system for web-assisted education and how it is used to deliver on-line drill questions, automatically suited to individual students. The system can store and display all of the various

September 1st, 2014|

Whales as marine ecosystem engineers (peer reviewed publication)

Abstract Baleen and sperm whales, known collectively as the great whales, include the largest animals in the history of life on Earth. With high metabolic demands and large populations, whales probably had a strong influence

July 3rd, 2014|

Assessing the trophic impacts of marine mammals: From metabolism to food web indices (peer reviewed publication)

Abstract Marine mammals are an important part of ecosystems, and their trophic role and potential impact have been increasingly studied. One key question is how these large animals interact with fisheries or compete for similar

July 1st, 2014|