A Study of the Potential Impact of Dredging the Corpus Christi Ship Channel on Passive Particle Transport

Journal of Marine Science and Engineering - Tập 9 Số 9 - Trang 935
Eirik Valseth1, Mark Loveland1, Clint Dawson1, Edward J. Buskey2
1The Oden Institute for Computational Engineering and Sciences, The University of Texas at Austin, Austin, TX 78751, USA
2The Marine Science Institute, The University of Texas at Austin, Port Aransas, TX 78373, USA

Tóm tắt

We present a study of the potential impact of deepening the Corpus Christi Ship Channel through Aransas Pass; in particular, we study the effect on the transport of red drum fish larvae due to the change in channel depth. The study was conducted by high resolution simulation of the circulation of the seawater entering and exiting the pass for the current and proposed Ship Channel depths. The computer model incorporates tides and meteorological forcing and includes the entire Gulf of Mexico and the North American Atlantic coast. The corresponding transport of larvae modeled as passive particles due to the sea water circulation is established by releasing particles in the nearshore region outside Aransas Pass and subsequently tracking their trajectories. We compare the difference in the number of larvae that successfully reach appropriate nursery grounds inside Aransas Pass for four distinctive initial larvae positions in the nearshore region. Our results indicate that the change in channel depth does not significantly alter the number of red drum larvae that reach suitable nursery grounds, overall, across all considered scenarios, we see a net increase of 0.5%.

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Journal of Marine Science and Engineering

Tập 9 Số 9

935

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