The MDR article "Stock collapsed: Hardly any cod left in the western Baltic Sea," (translated from original) published on August 20, 2021, describes the situation of the cod stock in the western Baltic Sea. As the article progresses, Dr Rüdiger Voss is quoted in several places. Dr Voss explains research results, such as the tipping point of the cod stock, after which the stock is significantly less productive and can no longer develop back to its previous state. He also explains that the current state is "a result of overfishing combined with a changing climate"; the cod stock is sensitive to an increase of water temperature of 2 degrees Celsius. Finally, Dr Voss made two recommendations for the future: financial aid and asking vacationers to eat more flatfish (i.e., plaice and flounder) instead of cod. More detailed information provided under: https://www.mdr.de/wissen/klima/dorsche-fische-ostsee-bestand-kipppunkt-ueberschritten-100.html
The article "Overfishing, Climate Change and Ignorance: Cod out" (translated from original), published on August 18, 2021, in the Tagesspiegel, describes the declining cod stock in the western Baltic Sea and the influence of environmental factors and overfishing on this phenomenon. Prof Dr Robert Arlinghaus is quoted as saying that "the currently extremely low number of offspring in the Baltic cod is mainly driven by the warming of the water and other environmental factors such as oxygen and salinity." He emphasizes the relevance of environmental factors compared to selective fishing in the cod population. Prof Dr Arlinghaus rates these research results as "bad news for the fishery for western cod," and the assumption is made that the cod cannot adapt to the new environmental conditions and cannot recover. For more details please visit https://www.tagesspiegel.de/wissen/ueberfischung-klimawandel-und-ignoranz-dorsch-ist-aus/27529092.html
Several journals (e.g., Spiegel, FAZ, Taz, Tagesschau, Bild) have published articles about the study of Prof Dr Christian Möllmann and co-authors about the situation of the cod stock in the western Baltic Sea on August 17, 2021. Following the study, the tipping point of the cod stock, which enables the population to recover, is already exceeded. To achieve this result, Prof Möllmann and his co-authors from Kiel University’s Center for Ocean and Society (CeOS) and the German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig analyzed fishery data from several decades using statistical models.
Prof Dr Möllmann has been quoted in these journal articles several times. According to him, the cod population is probably unable to recover even though the pressure developed by the fishery industry might decrease in the future. Prof Möllmann also mentions that the problem’s cause is a combination of overfishing and increased temperatures caused by climate change. These factors led to decreased fish breeding, causing the number of surviving fish eggs to be lower. Thus, one of Prof Möllmann’s co-authors, Prof Dr Robert Arlinghaus, recommends protecting big female fish because the number of hatched eggs is disproportionately higher due to their bigger mass.
More information on the topic is provided in the articles, which can be found here:
The underrated fisherman: role, importance, and responsibility for sustainable land use and nutrition. Lecture by Prof Dr Robert Arlinghaus at the lecture series "Animal or Tofu" at the University of Göttingen, Germany on January 21, 2020. For more details please visit https://www.youtube.com/watch?v=FJcme7GnpCM
Webinar: Recreational fisheries monitoring & control, DG Mare, December 4th, 2020. The webinar's motto was: "Monitoring and control of Recreational fisheries." The background to this was the ongoing reform of the control regulation. Dr Harry V. Strehlow was invited as an expert to give an opening lecture on the biological, economic, and social context of recreational fishing in Europe. This lecture was followed by further talks, particularly on an EP pilot project that developed and tested the use of an angling App, "Fishfriender," to control catches in the sea bass fishery. With this, anglers should register their daily catches, which then accumulate on a web-based platform of the EU. Other lectures revolved around data collection with various already known apps and the advantages and disadvantages of the data collected with these methods. More than 150 participants attended a webinar. Unfortunately, the impression solidified that the COM was primarily concerned about monitoring and controlling recreational fishery in Europe but less about recognizing recreational fishing as a sector per se. The practical problems involved in implementing a Europe-wide app-based collection of fishing data from around 9 million sea anglers and over 77 million fishing days were not discussed.
For more details about the webinar and to see the presentation of Dr Strehlow, please visit https://ec.europa.eu/fisheries/press/webinar-recreational-fisheries-monitoring-and-control_en.
On October 29, 2020, Dr Harry V. Strehlow was invited to the Baltic Sea JDP webinar for EU inspectors, EFCA. The webinar served as training for Baltic Sea inspectors from the EU border countries. Dr Harry V. Strehlow gave an introductory lecture on marine recreational fishing in the Baltic Sea, the legal framework, existing management approaches, and control requirements.
On 26.08.2020, Dr Harry V. Strehlow was invited to the 'Workshop on Western Baltic Cod Recreational Fisheries, EFCA' as an expert on marine recreational fishing. He gave an introductory lecture on marine recreational fisheries in the Baltic Sea, the legal framework, existing management approaches, and control requirements. EFCA is the European Fisheries Control Agency, which among other things, deals with the coordination of the Member States' fisheries control activities. The coordination takes place in a regional framework, the so-called Joint Deployment Plans (JDP), of which the Baltic Sea is one region.
The second annual marEEshift Newsletter is available now and can be downloaded following the link https://sway.office.com/aJhQzN4c5heq3LMD?ref=Link.
During the radio interview at SWR2 on 12.12.2019, Dr Harry V. Strehlow shared the outcomes of the weekly surveys that were conducted with recreational anglers. Undertaken surveys included questions about the type and amount of fish that have been fished, the frequency of fishing and whether fishing restrictions are followed. Additionally, during the radio interview, Dr Harry V. Strehlow talked about the current cod stock, fishing quotas and the reactions of the anglers to such quotas. Besides that, he provided an overview of undertaken analysis for the collected data. Namely, information about the number of recreational anglers, and the total amount that was fished. Furthermore, Dr Strehlow talked about the fishing regulations in the US that are stricter compared to ones in Germany and about his own fishing experience. For more details please visit https://www.swr.de/swr2/wissen/Ueberfischung-durch-Freizeitangler-Schutz-fuer-Hecht-Dorsch-und-Aal,swr2-wissen-2019-09-18-100.html
Our first annual marEEshift Newsletter is available now and can be downloaded following the link https://sway.office.com/ZlBhWWcxfcNT1hFk?ref=Link.
On 02.11.2019 Prof Dr Robert Arlinghaus gave a talk for the FischFetzen podcast “Gemeinsam auf der Suche nach Erkenntnissen” („Together in search for knowledge“). In his talk Professor Arlinghaus gave an insight into the projects related to angling that are currently taking place at the IGB (Leibniz-Institute of Freshwater Ecology and Inland Fisheries) including marEEshift project. In addition, podcast covered topics of removal windows, fishing guidelines, work of fishing clubs and much more. For more details please visit https://fischfetzen.podigee.io/3-episode_2
In his video interview on 14.10.2019, Dr Harry V. Strehlow reported that the cod stock is currently close to the reference value. However, the goal is to increase the stock. Besides Dr Stehlow demonstrated how the age of the cod is being defined in the laboratory. Finally, he summed up that the fishing limit could lead towards the end of recreational fishing since cod is the main target of anglers.
In the associated article of ‘Bild’ journal, Dr Harry V. Strehlow criticizes the impending introduction of a catch limit of 2 cod per day and angler by the EU Commission. From a scientific point of view, even a limitation to five or seven fishes would be reasonable. For more details please visit https://www.bild.de/politik/inland/politik-inland/kutter-kapitaene-die-eu-laesst-das-hochsee-angeln-sterben-65130058.bild.html
In his interview with ‘Bild’ journal on 16.09.2019, Dr Harry V. Strehlow reported about the current cod stock and its development from 2016 onwards. The current situation is better if compared to 2017; however, it is still below the lower limit that is required from a biological point of view. Concerning the discussion about the introduction of fishing quotas, Dr Harry V. Strehlow suggested applying fishing quotas that are not that drastic and recommended to introduce a so-called “close seasons” instead. According to him, fishing quotas that are too high would have a deterrent effect on the angler-tourists, who make up the majority of anglers in Germany. For more details please visit https://www.bild.de/news/inland/news-inland/bitterer-kampf-um-die-fang-quote-angelkutter-vor-dem-aus-64699796.bild.html