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Dayton, PK.  1979.  Observations of growth, dispersal and population dynamics of some sponges in McMurdo Sound, Antarctica. Biologie des Spongiaires (Sponge Biology) . 291:271-282. AbstractWebsite
Dayton, PK, Martin S.  1971.  Observations of ice stalactites in McMurdo Sound, Antarctica. Journal of Geophysical Research. 76:1595-1599.   10.1029/JC076i006p01595   AbstractWebsite

Observations have been made of ice stalactites with lengths of 1.5–6.0 meters and diameters of 10–25 cm growing under pack ice in Antarctica. The possible physical significance of the stalactites to the natural desalination of sea ice and to the formation of the antarctic bottom water is discussed.

Vilchis, LI, Tegner MJ, Moore JD, Friedman CS, Riser KL, Robbins TT, Dayton PK.  2005.  Ocean warming effects on growth, reproduction, and survivorship of Southern California abalone. Ecological Applications. 15:469-480.   10.1890/03-5326   AbstractWebsite

Traditional fisheries management in southern California has failed, in part because it is based on an assumption of an unvarying environment and is focused on size limits rather than insuring the persistence of aggregations of large fecund individuals. The combined effect of low frequency climatic variability and anthropogenic perturbations can have dramatic consequences for abalone in southern California. Abalone species are tightly linked to kelp forest ecosystems that, besides furnishing habitat, also provide the main food source for abalone. In southern California, kelp canopies are very sensitive to oceanographic climate because the kelp depend upon high nutrients in the water column. Oceanic warming, in turn, results in decreased nutrients in the surface water, and this is correlated with marked reductions in giant kelp biomass. Here we address the additive effects of ocean warming on two species of California abalone (the red abalone, Haliotis rufescens; and the green abalone, H.fulgens) by subjecting them to varied environmental conditions similar to cool, normal, and warm phases of the California current in the southern California Bight. Our experimental design simultaneously tested the synergistic effects of temperature and food quantity and quality on survivorship, growth, and reproduction. For red abalone, warm temperatures increased the onset of withering syndrome, a fatal abalone disease, and halted growth and reproduction. In contrast, green abalone survivorship, growth, and reproduction were relatively robust irrespective of temperature, while their growth and reproduction were most strongly influenced by food quantity. We found clear evidence suggesting that, combined with overfishing, California abalone populations are adversely affected by ecosystem responses to ocean warming: Coolwater red abalone suffer stronger consequences in warm water than do green abalone. Conservation, restoration, and recovery plans of remnant California abalone populations must consider these relationships when taking any action.

Gray, JS, Dayton P, Thrush S, Kaiser MJ.  2006.  On effects of trawling, benthos and sampling design. Marine Pollution Bulletin. 52:840-843.   10.1016/j.marpolbul.2006.07.003   AbstractWebsite

The evidence for the wider effects of fishing on the marine ecosystem demands that we incorporate these considerations into our management of human activities. The consequences of the direct physical disturbance of the seabed caused by towed bottom-fishing gear have been studied extensively with over 100 manipulations reported in the peer-reviewed literature. The outcome of these studies varies according to the gear used and the habitat in which it was deployed. This variability in the response of different benthic systems concurs with established theoretical models of the response of community metrics to disturbance. Despite this powerful evidence, a recent FAO report wrongly concludes that the variability in the reported responses to fishing disturbance mean that no firm conclusion as to the effects of fishing disturbance can be made. This thesis is further supported (incorrectly) by the supposition that current benthic sampling methodologies are inadequate to demonstrate the effects of fishing disturbance on benthic systems. The present article addresses these two erroneous conclusions which may confuse non-experts and in particular policy-makers. (c) 2006 Elsevier Ltd. All rights reserved.

Graham, MH, Dayton PK.  2002.  On the evolution of ecological ideas: Paradigms and scientific progress. Ecology. 83:1481-1489.   10.2307/3071968   AbstractWebsite

We introduce a heuristic model for studying the evolution of ecological ideas based on Thomas Kuhn's concept of the development of scientific paradigms. This model is useful for examining processes leading to ecological progress and the elaboration of ecological theories. Over time, ecological knowledge diverges and evolves as data are collected that either refute or support the current trajectories of accepted paradigms. As a result, the direction of ecological research continuously branches out into new domains leading to increased ecological understanding. Unfortunately, heightened ecological understanding also builds impediments to future progress. Increased specialization and the parallel evolution of seemingly independent subdisciplines generally compel researchers to become increasingly canalized. Specialization also accelerates the expansion of the ecological literature, making it difficult for researchers to track developments in their own subdisciplines, let alone the general field of ecology. Furthermore, specialization inherently focuses attention on contemporary research and hastens the erasure of memory of historical contributions to modern ecology. As a result, contemporary ecologists art in danger of losing touch with their historical roots and face a greater likelihood of recycling ideas and impeding real scientific momentum. Enhancing our historical perspective on the evolution of ecological ideas will be key in overcoming the negative consequences of progress and safeguarding the continued advancement of ecology.

Vetter, EW, Dayton PK.  1999.  Organic enrichment by macrophyte detritus, and abundance patterns of megafaunal populations in submarine canyons. Marine Ecology-Progress Series. 186:137-148.   10.3354/meps186137   AbstractWebsite

Submarine canyons can provide large quantities of food in aggregated form on the deepsea floor by acting as conduits for marine macrophyte production produced in the intertidal and shallow subtidal zone. Longshore transport delivers substantial quantities of macrophyte detritus from surf-grass Phyllospadix torreyi, kelps Macrocystis pyrifera and Egregia menziesii, and other macroalgae to the heads of Scripps and La Jolla Submarine Canyons. Strong tidal and gravity currents distribute this material throughout much of the canyon system, where it is utilized as food and habitat by benthic fauna. Video data taken from remotely operated vehicles and submarines were used to evaluate differences in detrital cover and megafaunal abundance in the canyons, and at nearby reference stations. Within the canyons dense mats of detritus were common down to 550 m, and M. pyrifera holdfasts were observed at 700 and 900 m. Virtually no drift material was observed out of the canyons. Comparisons of megafaunal invertebrates in and out of the canyons revealed generally higher densities at non-canyon sites due to large numbers of urchins. Species richness of all megafauna and abundance of non-urchin megafauna were greater in the canyons than out. It is l ikely that urchin abundance in canyons is reduced through disturbance by currents and detrital flows in the canyons. Species richness and abundance of fishes were greater in the canyons at all depths for which comparative data were available (100 to 500 m). From 150 to 200 m in Scripps Canyon, juvenile Pacific hake Merluccius productus were so abundant at times that their bodies obscured visibility. Turbot Pleuronichthys sp, and zoarcids Lycodes pacifica were also abundant in Scripps Canyon from 100 to 300 m. Data from this study support the hypotheses that macrophyte detritus covers large areas of the La Jolla and Scripps Canyon axis, and that megafaunal abundance is associated with detritus at both large and small spatial scales.