Bounded and unbounded boundaries – untangling mechanisms for estuarine-marine ecological connectivity: scales of m to 10,000 km – a review

Wolanski, Eric (2017) Bounded and unbounded boundaries – untangling mechanisms for estuarine-marine ecological connectivity: scales of m to 10,000 km – a review. Estuarine, Coastal and Shelf Science, 198 (B). pp. 378-392.

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Abstract

Recent advances in our understanding of the self-recruitment and connectivity of estuarine and coastal fauna and flora were made possible by an integration of physical oceanographic observations and modelling with results from studies of the behaviour of the seeds, eggs, larvae, propagules, juveniles and polyps, of population dynamics, microchemical tagging using natural and artificial markers, genetics and direct observations of trajectories. The species studied in those case studies were jellyfish in marine lakes, corals in acidified bays, seagrass, mangrove propagules, mussels and oysters, prawns, some estuarine fish larvae, the copepod Calanus finmarchius in the North Sea, sea turtles in the Coral Sea, and the ornate spiny lobster Panulirus ornatus in the Southeast Asia archipelago. The spatial scales for self-recruitment and connectivity vary with the species from a few m to 10,000 km, and the temporal scales vary from one to three generations. These studies suggest that, with increasing physical openness of a given site for a given species, self-recruiting increasingly relies on the behaviour of the species. Estuarine and coastal systems thus are simultaneously bounded and unbounded depending on the sites and the species considered and, although often ignored, the integration of oceanographic and behavioural understanding is increasingly required. This paper has shown the importance of understanding the hydrological and ecological dynamics with unbounded boundaries in creating the connectivity between parts of the aquatic continuum from the river catchment to the open seas.

Item ID: 44681
Item Type: Article (Research - C1)
ISSN: 1096-0015
Keywords: self-recruitment, connectivity, oceanography, behaviour, scales
Date Deposited: 25 Jul 2016 23:15
FoR Codes: 16 STUDIES IN HUMAN SOCIETY > 1606 Political Science > 160605 Environmental Politics @ 100%
SEO Codes: 96 ENVIRONMENT > 9603 Climate and Climate Change > 960301 Climate Change Adaptation Measures @ 100%
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