WP2 and WP7 cooperation Henn Ojaveer Estonian Marine Institute, Estonia WP7 w-p, Lima, 4-7. Dec. 2006

Contents What WP2 members are doing WP2 database plans Initially agreed indicators by WP7 Ways towards solutions: cooperation between WP7 and WP2 Documents: –The WP2 Database and its usefulness to WP7 –WP2 ws1 report

Activities of WP2 members IMAPRE: Humboldt Current. The species under study are hake, Peruvian seabass, Peruvian croaker and searobin, over a time span of Catch statistics and biomass estimates by VPA are being used, and CPUE and length-frequency data are currently being collected. IMARPE intend to look at the biological parameters of the species and the historical by-catch.

Activities of WP2 members CDF: Galapagos Marine Reserve. Period The main species of research are spiny lobster and sea cucumber. Catch, effort and biological data have been collected and is being systemized. Future work on collating the traditional ecological knowledge of the resource will begin in March. Other planned research is to interview local fishers to obtain past catch and effort rates, continue the collection of data from various official sources and finally to compare spatial- temporal shifts in the catch composition.

Activities of WP2 members MEI: Baltic Sea LME. Time period beginning in the late 18 th century. They are looking at herring, cod, eel and flounder, among others. Looking at customs books, magistrates, reports, and communications for further information of imports and exports of marine resources.

Activities of WP2 members UNIABDN North Sea LME and the Celtic- Biscay Shelf LME. Data from 1965 onwards. Landings of several species, most notably herring and haddock. They have data from many sources; these data cover biological, fishing, environmental and legislative information as well as management regimes

Activities of WP2 members Roskilde University Limfjord fisheries, which touches both the North Sea and the Baltic Sea LMEs. Data are available from 1600 to present. Species researched are mussel, oyster, eel, plaice, whitefish and herring, among others. These have been studied in terms of regime shifts, fishing mortality, climate change, hydrographic change, episodic events and societal changes.

Activities of WP2 members CEFAS North Sea LME. Research on herring landings from 1800 to For this they are looking at fishing vessels, length, weight and biomass of fish, fleets, CPUE and fishing activity.

Activities of WP2 members UHULL Benguela Current and the Southeast Australian Shelf. In the Benguela Current, the main species studied are snoek, hake, mackerel and seals, with a data range between 1815 and The Southeast Australian Shelf has available data from 1918 – 1957, and concentrates on tiger flathead and John Dory. These data are beginning to be put in context in terms of what was happening to influence the fisheries at the time.

European northern seas (Baltic, North, White and Barents seas I) Bager, M. and Karnøe Søndergaard, M. The Danish Baltic Sea fisheries c Eero, M. and MacKenzie, B. R. Analysis of the accuracy of catch statistics for reflecting relative fluctuations in the eastern Baltic cod stock in the first half of the 20 th century Enghoff, I. B. and MacKenzie, B. R. Archaeological evidence of the effects of warm temperatures on the fish fauna in the North Sea-Baltic Sea region Gaumiga, R., Karlsons, G., Uzars, D. and Ojaveer, H. Fisheries of the Gulf of Riga (Baltic Sea) in the late 17 th century Lotze, H. Rise and fall of fishing and marine resource use in the Wadden Sea, southern North Sea

Lajus, D., Alekseeva, Y. and Lajus. J. Herring fisheries in the White and Barents Sea in the 18 th - beginning of the 20 th cc: factors effecting the catch fluctuations Lajus, D., Dmitrieva, Z., Kraikovski, A., Lajus, J., Yurchenko, A. and Alexandrov, D. Historical records of the 17 – 18 th century fisheries for Atlantic salmon in northern Russia: methodology and case studies of population dynamics Lajus, J., Ojaveer, H., Tammiksaar, E. Fisheries on the north-eastern coast of the Baltic Sea in the first half of the 19 th century: what can we learn from the archives of Karl Ernst von Baer MacKenzie, B. R., and Myers, R. A. The development of the northern European fishery for bluefin tuna Thunnus thynnus during European northern seas (Baltic, North, White and Barents seas II)

Poulsen, R. T., Cooper, A. B. and Holm, P. The importance of historical baselines to fisheries management - An abundance estimate of ling (Molva molva) in the northeastern North Sea, 1872 Poulsen, B. and Holm, P. A fishery of historical magnitude. Reconstructing the 17 th -19 th centuries catches of herring, eel, whitefish and plaice in Limfjorden, Denmark. Barnard, M. Shared. Spaces, complex interactions: the impact of extractive activity on fish populations in the Noth Sea UKCS since 1945 MacKenzie, B. R., Bager, M., Ojaveer, H., et al. Multi-decadal scale variability in the eastern Baltic cod fishery – evidence and causes Ojaveer, H., Awebro, K., Karlsdottir, H., MacKenzie, B. R. Swedish Baltic Sea fisheries during c : spatio-temporal dynamics of catch and fishing effort European northern seas (Baltic, North, White and Barents seas III)

WP 2 database plans LMEMain ResourcePeriod Celtic-Biscay Shelf*Herring, Haddock North Sea*All species Herring Herring, Haddock Baltic Sea*All species Herring Benguela Current*Snoek Southeast Australian Shelf*Tiger Flathead Pacific Central-American Coastal* Sea Cucumber, Lobster Humboldt Current*Hake Caribbean Sea*Snappers, Sharks, Rays Gulf of Thailand* Black Sea* Newfoundland-Labrador Shelf South China Sea

Selected Indicators WP7 ws1 IndicatorRequired DataPossible responses 1 % of mature fish in catch Mean length in pop. or mixed fishery Lm (also eventually length where % are mature) length frequency of catch Promote capture of mature fish through Fish ruler and info sheet for fish traders 2 % of ‘optimum’ size in catch Length-frequencies from catch or surveys Length-weight relationship for species Same as above 3 % “mega spawners” in catch(goal 0%) Mean max. length in pop or mixed fishery Length-frequencies from catch and surveys MPAs Campaign “Let Megaspawners live” Only catch cohorts after 1 st and before 2 nd spawning 4 % Bycatch in total catchBycatch biomass by fishery Awareness/ “propaganda” campaign

Cooperation Basis: overlap of interests of WP7 and WP2 members Selected LMEs Time-window: max. last 50 years Selected species Potential candidates: Humbolt current (IMAPRE) North Sea (CEFAS & UNIABDN) Others?