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Process-based understanding of changes in fish distributions,
including especially in order to distinguish and quantify the
role of natural drivers and anthropogenic impacts, is still an
increasingly challenging research topic with high relevance to
resource management. The overall objective of the project is to
advance the knowledge base and develop quantitative measures to
evaluate consequences of spatial and temporal heterogeneity in
the Baltic Sea for an ecosystem-based management of the major
fishery resources. The overarching tasks are to: 1) increase
knowledge on the habitat requirements of different life stages
of cod, herring, sprat and flounder, and identify conditions
under which the connectivity between different life stages?
habitats is at risk, 2) account for processes shaping spatial
and temporal heterogeneity of habitats and distributions of
fish in an ecosystem-based management. The methods used will be
a combination of dedicated field studies by involving
fishermen, and process studies by means of multidisciplinary
approaches, results of which will feed into fish stock
assessment and ecosystem models made spatially explicit for the
first time in the Baltic Sea. In addition to multidisciplinary
science and high management relevance, the project also
includes an extensive outreach component to ensure a wide
dissemination of the results. Importantly, stakeholder
involvement starts already at the data generation phase and
continues till the end of the project. Tavoitteet 1. To quantify processes generating heterogeneity in spatial
distributions of cod, herring, sprat and flounder. This means
to quantify habitat associations of the focal species at
different life stages.
2. To quantify and map potential hazards to the connectivity
between identified key habitats, and assess the impact of
anthropogenic and climatic environmental changes on habitat
connectivity.
3. To quantify the population dynamics and interactions of the
focal species in a spatially explicit context.
4. To develop spatially explicit advice for ecosystem-based
fisheries management of Baltic cod, herring, sprat and
flounder, accounting for the spatial heterogeneity in fish
distributions. Tulokset INSPIRE proposes pilot ecosystem field surveys that helps
resolving the habitat requirements of different life-stages of
the focal species by combined use of traditional methods and
application of modern advanced analysis/modelling techniques,
for example otolith microchemistry and biochemical techniques.
The surveys are conducted in close collaboration with local
fishers. Their inclusion will strengthen then participatory
spirit in the implementation of INSPRE results into ecosystem-
based fisheries management, and improve the data collection.
INSPIRE research is conducted in a matrix approach with four
species specific case (cod, herring, sprat and flounder) and
five research work-packages. The work packages deal with (i)
habitat requirements and survival probability for different
life stages, (ii) connectivity between habitat occupied in
successive life stages, (iii) spatial scaling from local events
to regional population dynamics, (iv) spatially explicit
analytical stock assessments (including a comprehensive
flatfish programme), and (v) ecosystem-based management and
Marine Strategy Framework Directive indicators.
Moving beyond existing knowledge, INSPIRE will for the major
Baltic fish species take the leap from homogeneous to
heterogeneous population dynamics, by accounting for spatial
heterogeneity in population models and ecosystem-based
fisheries management. Spatial heterogeneity, defined as changes
in the abundance of fish over space, which are not explainable
by simple random (Poissonian) variability, can have different
causes. The overall approach of INSPIRE is mechanistic in the
sense that we aim to understand these causes and the underlying
processes generating spatial heterogeneity, but also estimate
its magnitude. Vaikuttavuus INSPIRE will generate new data and operational models that
allow making projections on spatial distributions of Baltic key
commercial fish species on different spatial and temporal
scales, and their integration in analytical assessments and
ecosystem-based fisheries management. Moreover, as the main
providers of management advice on Baltic fish stocks, INSPIRE
partners are also able to translate these model outputs into
urgently needed advice on how best to move beyond spatially
homogeneous approach of current fishery and ecosystem
assessments, and adopt spatially explicit ecosystem-oriented
management. The INSPIRE project is thus addressing major
research objectives set forth by the revised Common Fisheries
Policy, the Marine Strategy Directive (2008/56/EC), the EU
Marine and Maritime Research Strategy, the HELCOM Baltic Sea
Action Plan, and the BONUS research agenda. Vastaava tutkija Kallasvuo Meri, Finnish Game and Fisheries Research Institute Yhteistyötahot UT-EMI Estonia, DTU Aqua Denmark, MIR-PIB Poland, BIOR Latvia, TI-OF Germany, UHAM Germany, GEOMAR Germany, SU Sweden, SLU Sweden, LU Sweden, ARSGOTU Sweden Hankkeen kesto 2014 - 2017 Hankkeen vaihe: päättynyt
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