Nekton tidal migration patterns were examined in oligo-mesohaline intertidal salt marsh creeks using underwater video observations collected throughout multiple tidal cycles (i.e., flood-ebb) during summer 2005-2006. Underwater video observations indicated that species composition and abundances varied with tide stage. Three intertidal salt marsh species (Fundulus heteroclitus, Morone americana, Menidia menidia) were the most abundant species observed. In general, resident species were most abundant in early flood and late ebb tide stages, whereas transient species were most abundant around slack high tide. F heteroclitus displayed a consistent symmetrical tidal migration pattern and primarily occurred in early flood and late ebb tide stages. M. americana occurred throughout flood and high tides, but were largely absent from intertidal creeks during ebb tide. M. menidia was observed during all tide stages, but displayed no distinct migration patterns. The results of this study highlight the advantages and disadvantages of using underwater video for examining small-scale tidal migrations of nekton in intertidal salt marsh creeks.
The Northeastern Naturalist is a peer-reviewed interdisciplinary scientific journal with a regional focus on northeastern North America, including eastern Canada. It features research articles on terrestrial, fresh-water, and marine organisms, and their environments. It focuses on field ecology, biology, behavior, biogeography, wildlife and fisheries management, taxonomy, evolution, anatomy, physiology, geology, and related fields. It is co-published with the Southeastern Naturalist (ISSN # 1528-7092). Both journals are identical in focus, format, quality, and features, thus providing an integrated publishing and research resource for eastern North America.
The Eagle Hill Institute (formerly the Humboldt Institute) is located on the eastern Maine coast and is perhaps best known for the advanced and professional-level natural history science field seminars it has offered since 1987. The Institute actively promotes collaboration in education, research, and publishing by working together with scientists from the United States, Canada, Europe, and Latin America. It publishes the Northeastern and Southeastern Naturalists, two natural history science journals for eastern North America. The Institute has a special interest in the legacy of Alexander von Humboldt, the most renowned natural scientist of the early 19th century. The Institute is working with the Eagle Hill Foundation in developing a retreat style study and meeting facility on the summit of Eagle Hill and in developing the Foundation's first journal, the Journal of the North Atlantic, focusing on peoples of the North Atlantic, their expansion into the region over time, and their interactions with their changing environment.