Nineteen species of the deep-water fish family Macrouridae inhabit Mid-Atlantic Ridge (MAR) North Atlantic. Size and age structure, longevity length at were explored for seven more abundant species: Coryphaenoides armatus, brevibarbis, carapinus, guentheri, mediterraneus, rupestris Macrourus berglax. The otoliths from these had growth increments resembling those accepted as annuli in other whic...

The role of root systems in drought tolerance is a subject of very limited information compared with above-ground responses. Adjustments to the ability of roots to supply water relative to shoot transpiration demand is proposed as a major means for woody perennial plants to tolerate drought, and is often expressed as changes in the ratios of leaf to root area (A(L):A(R)). Seasonal root prolifer...

Today, educational management is an expanding scientific field that has been attracting ever more social and political visibility, and it has been the object of a considerable amount of research. In the Portuguese context, over the past two decades there has been a sharp movement to create post-graduate courses, to increase individual and collective research and the number of scientific publica...

Stable isotope and gut content analyses were completed on multiple age classes of Detroit River rock bass (Ambloplites rupestris) and bluegill sunfish (Lepomis macrochirus) to determine the importance of resource partitioning in littoral centrarchids. d15N signatures ranged from 10.9‰ to 12.8‰ in young of the year (YOY) to 7-yrold rock bass and from 10.3‰ to 12.1‰ for YOY to 4-yr-old bluegills....