|Statement||by Guillermo R. Giannico and Jon A. Souder.|
|Series||ORESU-G -- 04-002.|
|Contributions||Souder, Jon A., Oregon State University. Sea Grant College Program.|
|The Physical Object|
|Pagination||9 p. :|
The Effects of Tide Gates on Estuarine Habitats and Migratory Fish The Effects of Tide Gates on Estuarine Habitats and Migratory Fish This book is the first attempt to examine collectively the. The Effects of Tide Gates on Estuarine Habitats and Migratory Fish The Effects of Tide Gates on Estuarine Habitats and Migratory Fish. The Effects of Tide Gates on Estuarine Habitats and Migratory Fish Public Deposited. Analytics × Add Cited by: by salmon and other estuarine-rearing fish, and would allow some degree of fish passage for migration and habitat use. These “fish-friendly” tide gates (also called self-regulating tide gates or SRTs) can vary greatly in design and operation. Gate doors can be a vertical flap or side-.
The Effects of Tide Gates on Estuarine Habitats and Migratory Fish. By. Topics: Thematic Classification -- Plants and Animals -- Fish, Thematic Classification -- Habitats and Vegetation -- Marine and Estuarine Habitats -- Estuarine Habitats. how well fish-friendly tide gate s actually restore connectivity a nd rearing habitat to estuarine- dependent species (Giannico and Souder ). In this study, we examine physical and ecol ogical. The project is premised on the assumption that the ecological effects of existing tide gates are understood well enough to make estuary restoration involving removal or upgrades of aging tide gates generally worthwhile in terms of improved fish passage and estuarine habitat conditions. However, the. Tide gates are one-way doors integrated into dyke systems that prevent saltwater intrusion to agricultural land and allow freshwater drainage to the estuary during low tide. Tide gates may act as fish passage barriers for juvenile salmonids, limiting movements during migration and access to rearing habitats. We conducted our research in Coos Bay, one of the many Oregon estuaries with extensive.
The ecological effects of tide gates are thought to be sufficiently understood to justify estuary restoration involving removal or upgrades of aging structures with the goals of improving fish passage and estuarine habitat conditions. However, whether tide gate upgrade or removal affect salmonid passage, growth and survival, and habitat quality, lacks clear answers in the primary literature. Modified tide gate management for improving instream habitat was trialled. • Reintroduction of tidal fluctuations improved habitat conditions for native fish. • Interaction with other local environmental stressors complicated outcomes. • Optimising tide gate management regimes can reduce negative ecological effects. This study describes the results of a trial investigating the effects of modified tide gate management on instream habitat and fish communities in a small tidal stream in the North Island of New Zealand (see Section for further details of the tide gates at the site). The main objective of the study was to understand whether improvements in. Coastal waterbirds are vulnerable to water-level changes especially under predictions of accelerating sea-level rise and increased storm frequency in the next century. Tidal and wind-driven fluctuations in water levels affecting marshes, their invertebrate communities, and their dependent waterbirds are manifested in daily, monthly, seasonal, annual, and supra-annual (e.g., decadal or yr.