Eckhard Bethke

FiCoBe

Königsbergstraße 54

Wedel, DE 22880

Germany

http://www.ficobe.de

SCHOLARLY PAPERS

12

DOWNLOADS
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Top 35,675

in Total Papers Downloads

2,668

SSRN CITATIONS

2

CROSSREF CITATIONS

12

Scholarly Papers (12)

1.

Feed Efficiency Versus Feed Conversion Ratio -- Demonstrated on Feeding Experiments with Juvenile Cod (Gadus Morhua)

Number of pages: 19 Posted: 20 Aug 2013 Last Revised: 27 Jan 2014
Eckhard Bethke, Matthias Bernreuther and Ross Tallman
FiCoBe, Thünen Institute of Sea Fisheries and Fisheries and Oceans Canada
Downloads 1,588 (22,007)
Citation 10

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feed conversion ratio, feed efficiency, growth, maintenance rate, temperature

2.
Downloads 244 (233,190)
Citation 1

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Food efficiency, growth, maintenance rate, optimum consumption rate, reference assimilation rate, temperature

3.

Food Overfishing - The Cod Fishery in the Baltic Sea Through the Eyes of Aquaculture

Number of pages: 19 Posted: 07 Feb 2019 Last Revised: 27 Feb 2019
Eckhard Bethke
FiCoBe
Downloads 179 (310,638)
Citation 1

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Discards, economic feed conversion ratio, feed consumption, feed production, high-grading, revenue maximization

4.

Beverton and Holt Reloaded – Incorporating Variable Growth into a Yield Per Recruit Model

Number of pages: 16 Posted: 16 Aug 2013 Last Revised: 31 Jan 2015
Eckhard Bethke
FiCoBe
Downloads 115 (443,307)
Citation 5

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Beverton and Holt–model, growth, von Bertalanffy-growth model, yield per recruit analysis

5.

The Eco² Model – a Basic Bio-Economic Module Describing the Dynamics of the Cohort Biomass to Exploitation.

Number of pages: 31 Posted: 13 Aug 2013 Last Revised: 13 Aug 2014
Eckhard Bethke
FiCoBe
Downloads 113 (449,193)
Citation 2

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Assimilation rate, bio-economic modeling, ecosystem, fisheries management, growth function, stock dynamics, VPA.

6.
Downloads 113 (449,193)

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Baltic Sea, Beverton and Holt, cod, precautionary approach, profit maximization, spawning-stock biomass recruit relation

7.

Overfishing As a Legitimate Management Goal

Number of pages: 24 Posted: 06 May 2017 Last Revised: 31 May 2017
Eckhard Bethke
FiCoBe
Downloads 69 (612,126)

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balanced harvesting, fish efficiency, food per recruit, stock efficiency, and yield per recruit

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discards, economic feed conversion ratio, eFCR, iFCR, revenue maximization

9.

Reliable Measurements of Codend Selectivity Even When the Mesh Opening of the Reference Codend Is Not Sufficiently Small

Number of pages: 9 Posted: 11 Oct 2013 Last Revised: 17 Jun 2015
Eckhard Bethke
FiCoBe
Downloads 56 (679,420)
Citation 1

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Logistic function, Log-Likelihood function, Mesh opening, 50% retention length, Retention probability, Selection length factor, Selection range factor

10.
Downloads 53 (696,640)
Citation 1

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Fattening Period, Faecal Loss Ratio, Economic Feed Conversion Ratio, Feed Efficiency, Fish Efficiency, Non-Faecal Loss Ratio, Reference Assimilation Rate

11.

A Simple Age- and Growth-Dependent Sequential Selectivity Function for Trawls - An Additional Module for the Eco²-Model.

Number of pages: 11 Posted: 26 Feb 2016 Last Revised: 29 Feb 2016
Eckhard Bethke
FiCoBe
Downloads 43 (761,266)
Citation 1

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Length-selection factor, mesh opening, overfishing, range-selection factor, reference-assimilation rate, under-utilisation

12.

Immediate Catch Reduction or Catch Increase When the Mesh Size Is Changed

Number of pages: 7 Posted: 16 Mar 2019 Last Revised: 21 Mar 2019
Eckhard Bethke
FiCoBe
Downloads 29 (870,760)

Abstract:

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Selectivity, Mesh Size, Catch Reduction and Catch Increase, Discards, Effort