Fish assemblages under climate change in Lithuanian rivers

2019 ◽  
Vol 661 ◽  
pp. 563-574 ◽  
Author(s):  
J. Kriaučiūnienė ◽  
T. Virbickas ◽  
D. Šarauskienė ◽  
D. Jakimavičius ◽  
J. Kažys ◽  
...  
2008 ◽  
Vol 14 (10) ◽  
pp. 2232-2248 ◽  
Author(s):  
LAËTITIA BUISSON ◽  
WILFRIED THUILLER ◽  
SOVAN LEK ◽  
PUY LIM ◽  
GAËL GRENOUILLET

2011 ◽  
Vol 2011 ◽  
pp. 1-11 ◽  
Author(s):  
Mélanie L. Trapon ◽  
Morgan S. Pratchett ◽  
Lucie Penin

Degradation and loss of critical coastal habitats has significant ramifications for marine fisheries, such that knowledge of changes in habitat quality and quantity are fundamental to effective ecosystem management. This study explores changes in the structure of coral reef habitats, specifically changes in coral cover and composition, in Moorea, French Polynesia, to assess the independent and combined effects of different disturbances since 1979. During this period, reefs on the north coast have been subject to coral bleaching, severe tropical storms, as well as outbreaks ofAcanthaster. Coral cover varied significantly among years, showing marked declines during some, but not all, disturbances. The greatest rates of coral loss coincided with outbreaks ofA. planci. Moreover, successive disturbances have had differential effects among coral genera, leading to strong directional shifts in coral composition.Acroporais declining in abundance and coral assemblages are becoming increasingly dominated byPocillopora and Porites. Observed changes in the cover and composition of corals are likely to have further significant impacts on the reef fish assemblages. Given that significant disturbances have been mostly associated with outbreaks ofA. planci, rather than climate change, effective ecosystem management may reduce and/or delay impending effects of climate change.


2012 ◽  
Vol 18 (10) ◽  
pp. 2995-3003 ◽  
Author(s):  
Camille Albouy ◽  
François Guilhaumon ◽  
Miguel B. Araújo ◽  
David Mouillot ◽  
Fabien Leprieur

2011 ◽  
Vol 62 (9) ◽  
pp. 1082 ◽  
Author(s):  
John R. Morrongiello ◽  
Stephen J. Beatty ◽  
James C. Bennett ◽  
David A. Crook ◽  
David N. E. N. Ikedife ◽  
...  

Freshwater environments and their fishes are particularly vulnerable to climate change because the persistence and quality of aquatic habitat depend heavily on climatic and hydrologic regimes. In Australia, projections indicate that the rate and magnitude of climate change will vary across the continent. We review the likely effects of these changes on Australian freshwater fishes across geographic regions encompassing a diversity of habitats and climatic variability. Commonalities in the predicted implications of climate change on fish included habitat loss and fragmentation, surpassing of physiological tolerances and spread of alien species. Existing anthropogenic stressors in more developed regions are likely to compound these impacts because of the already reduced resilience of fish assemblages. Many Australian freshwater fish species are adapted to variable or unpredictable flow conditions and, in some cases, this evolutionary history may confer resistance or resilience to the impacts of climate change. However, the rate and magnitude of projected change will outpace the adaptive capacities of many species. Climate change therefore seriously threatens the persistence of many of Australia’s freshwater fish species, especially of those with limited ranges or specific habitat requirements, or of those that are already occurring close to physiological tolerance limits. Human responses to climate change should be proactive and focus on maintaining population resilience through the protection of habitat, mitigation of current anthropogenic stressors, adequate planning and provisioning of environmental flows and the consideration of more interventionist options such as managed translocations.


Hydrobiologia ◽  
2014 ◽  
Vol 744 (1) ◽  
pp. 235-254 ◽  
Author(s):  
Florian Pletterbauer ◽  
Andreas H. Melcher ◽  
Teresa Ferreira ◽  
Stefan Schmutz

2016 ◽  
Vol 22 (4) ◽  
pp. 1505-1522 ◽  
Author(s):  
Johannes Radinger ◽  
Franz Hölker ◽  
Pavel Horký ◽  
Ondřej Slavík ◽  
Nicolas Dendoncker ◽  
...  

2010 ◽  
Vol 68 (3) ◽  
pp. 580-591 ◽  
Author(s):  
Georg H. Engelhard ◽  
Jim R. Ellis ◽  
Mark R. Payne ◽  
Remment ter Hofstede ◽  
John K. Pinnegar

Abstract Engelhard, G. H., Ellis, J. R., Payne, M. R., ter Hofstede, R., and Pinnegar, J. K. 2011. Ecotypes as a concept for exploring responses to climate change in fish assemblages. – ICES Journal of Marine Science, 68: . How do species-rich fish assemblages respond to climate change or to other anthropogenic or environmental drivers? To explore this, a categorization concept is presented whereby species are assigned with respect to six ecotype classifications, according to biogeography, horizontal and vertical habitat preference, trophic guild, trophic level, or body size. These classification schemes are termed ecotypology, and the system is applied to fish in the North Sea using International Bottom Trawl Survey data. Over the period 1977–2008, there were changes in the North Sea fish community that can be related to fish ecotypes. Broadly speaking, there were steady increases in abundance of species that were either Lusitanian, small-bodied, or low-/mid-trophic-level ecotypes, and generally declining or only marginally increasing trends of most Boreal, large-bodied, or high-trophic-level ecotypes or combinations of them. The post-1989 warm biological regime appears to have favoured pelagic species more than demersal species. These community-level patterns agree with the expected responses of ecotypes to climate change and also with anticipated vulnerability to fishing pressure.


2018 ◽  
Author(s):  
Marina Abas ◽  
Hector Reyes-Bonilla

Climate change is affecting the structure and function of marine communities in the eastern Pacific, and to anticipate possible consequences of these modifications, a better understanding of the natural adaptation potential of the species is needed. This study aimed to build a metric of adaptive capacity of reef fishes, and evaluate it using data from fish assemblages from 12 rocky and coral reefs of western Mexico. The index was developed using six life history traits from 719 fish-species distributed along the tropical Eastern Pacific. Our results indicated low adaptive capacity for big sized carnivore fish such as the tunas, totoaba and most groupers (Mycteroperca spp.); conversely, high values were attributed to species with fast life strategies such as anchovies, gobies, and blennies. The application of the index to census data showed that the adaptive potential of fish assemblages had an inverse latitudinal trend (higher in the southern reefs), resulting from the abundance of large-sized carnivores in the central and northern Gulf of California, and of small herbivores in the tropical region. As the index allows to estimate reef-fish species and communities' adaptive capacity in a straightforward and simple way, it may be a useful tool for marine conservation.


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