South Australia’s Large Inverse Estuaries: On the Road to Ruin

Kämpf, Jochen

doi:10.1007/978-94-007-7019-5_9

Cited by 21 publications

(6 citation statements)

References 38 publications

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“…The demography of southern Australian bottlenose dolphins in the inner area of Coffin Bay is characterized by high year‐round abundance (265; 95% CI: 253–278), and low temporary emigration rates (0.02; 95% CI: 0.01–0.11; Passadore et al., ). Shallow, sheltered, inverse estuaries like Coffin Bay are highly productive (Kämpf, ); and reports of water quality indicate high nutrients loads particularly in the inner area of Coffin Bay (EPA, ). Moreover, Coffin Bay is an important nursery and feeding area for several fish and cephalopod species (DENR, ) that are known to constitute part of the diet of bottlenose dolphins in South Australia (Gibbs, Harcourt, & Kemper, ).…”

Section: Introductionmentioning

confidence: 99%

High site fidelity and restricted ranging patterns in southern Australian bottlenose dolphins

Passadore

Möller

Diaz‐Aguirre

et al. 2017

Ecology and Evolution

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Information on site fidelity and ranging patterns of wild animals is critical to understand how they use their environment and guide conservation and management strategies. Delphinids show a wide variety of site fidelity and ranging patterns. Between September 2013 and October 2015, we used boat‐based surveys, photographic identification, biopsy sampling, clustering analysis, and geographic information systems to determine the site‐fidelity patterns and representative ranges of southern Australian bottlenose dolphins (Tursiops cf. australis) inhabiting the inner area of Coffin Bay, a highly productive inverse estuary located within Thorny Passage Marine Park, South Australia. Agglomerative hierarchical clustering (AHC) of individuals’ site‐fidelity index and sighting rates indicated that the majority of dolphins within the inner area of Coffin Bay are “regular residents” (n = 125), followed by “occasional residents” (n = 28), and “occasional visitors” (n = 26). The low standard distance deviation indicated that resident dolphins remained close to their main center of use (range = 0.7–4.7 km, X ± SD = 2.3 ± 0.9 km). Representative ranges of resident dolphins were small (range = 3.9–33.5 km2, X ± SD = 15.2 ± 6.8 km2), with no significant differences between males and females (Kruskal–Wallis, χ2 = 0.426, p = .808). The representative range of 56% of the resident dolphins was restricted to a particular bay within the study area. The strong site fidelity and restricted ranging patterns among individuals could be linked to the high population density of this species in the inner area of Coffin Bay, coupled with differences in social structure and feeding habits. Our results emphasize the importance of productive habitats as a major factor driving site fidelity and restricted movement patterns in highly mobile marine mammals and the high conservation value of the inner area of Coffin Bay for southern Australian bottlenose dolphins.

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Section: Introductionmentioning

confidence: 99%

High site fidelity and restricted ranging patterns in southern Australian bottlenose dolphins

Passadore

Möller

Diaz‐Aguirre

et al. 2017

Ecology and Evolution

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“…Interference between M2 and S2 tidal constituents on their own give rise to pronounced neap tides that, at times, can result in extremely small tidal ranges of ,20 cm. In the neighbouring gulfs, Spencer Gulf and Gulf St. Vincent, this tidal feature is historically known as ''dodge tide'' (e.g., Kämpf, 2014).…”

Section: Tidal Currentsmentioning

confidence: 99%

“…Most inverse estuaries are found in hot arid climates. Examples include the Persian Gulf (Kämpf and Sadrinasab, 2006;Sadrinasab and Kämpf, 2004), South Australian gulfs: Spencer Gulf and Gulf St. Vincent (De Silva Samarasinghe, 1998;Kämpf, Brokensha, and Bolton, 2009;Kämpf, Payne, and Malthouse, 2010;Nunes and Lennon, 1986;Nunes Vaz, Lennon, and Bowers, 1990), the upper Gulf of California (Lav, God, and Alvarez, 1998), the upper reaches of San Diego Bay (Largier, 2010), and various smaller systems such as Laguna Ojo de Liebre (Postma, 1965), Laguna de Guyamas (Valle-Levinson, Delgado, and Atkinson, 2001), Laguna San Ignacio (Winant and de Velasco, 2011), the Coorong lagoon (Kämpf, 2014), Mission Bay (Largier, Hearn, and Chadwick, 1996), Shark Bay (Burling, Ivey, and Pattiaratchi, 1999), Hervey Bay (Ribbe, 2006), and the Great Barrier Reef (Andutta, Ridd, and Wolanski, 2011). Largier (2010) gives a comprehensive overview of the general dynamics that govern such low-inflow estuaries.…”

Section: Introductionmentioning

confidence: 98%

“…Wind effects often play a minor role. In large estuaries, such as the Persian Gulf, Spencer Gulf, and Gulf St. Vincent, density-driven flows control the systemwide flushing over tidal effects (Kämpf, 2014;Kämpf and Sadrinasab, 2006). Given the seasonal variation of air-sea heat, freshwater fluxes, and associated density changes, the flushing of these estuaries experiences pronounced seasonal variations.…”

Section: Introductionmentioning

confidence: 99%

“…Inverse estuaries are long and narrow marine inlets that display hypersaline conditions (Kämpf, 2014). Most inverse estuaries are found in hot arid climates.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Hydrodynamics and Flushing of Coffin Bay, South Australia: A Small Tidal Inverse Estuary of Interconnected Bays

Kämpf¹,

Ellis²

2015

Journal of Coastal Research

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Seagrasses of Southern and South-Western Australia

Kilminster

Hovey

Waycott

et al. 2018

Seagrasses of Australia

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South Australia’s Large Inverse Estuaries: On the Road to Ruin

Cited by 21 publications

References 38 publications

High site fidelity and restricted ranging patterns in southern Australian bottlenose dolphins

High site fidelity and restricted ranging patterns in southern Australian bottlenose dolphins

Hydrodynamics and Flushing of Coffin Bay, South Australia: A Small Tidal Inverse Estuary of Interconnected Bays

Seagrasses of Southern and South-Western Australia

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