Background: Manta rays (Mobulidae), Mobula birostris and Mobula alfredi, are widely distributed in tropical and temperate waters. Still, little is known about their movements and their ecological interactions (e.g. behavior and diet). In Peru, M. birostris has only been reported along the northern shore within the Tropical East Pacific Marine Province. No official reports exist from central or ...

Pesticides usage in agricultural fields to control pests is extremely toxic to non target organisms like fish and affect fish health through impairment of metabolism, sometimes leading to mortality. Present study is a review of potential adverse effects of pesticides and pollutants in fish. Furthermore, the data generated could be useful in the environmental risk assessment of freshwater and ma...

1. introduction seas and oceans comprise over 70 percent of the planet earth always taken into attention in the history. however, the most important official and legal actions to regularize a number of claims made by coastal countries regarding the demand of the territorial and marine control and exclusive ownership date the 20th century. the first conference on marine international law was hel...

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Alcoholic extracts of 48 identified species of marine flora were screened for a wide range of biological activities. Of these, 3 extracts showed diuretic activity while 2 extracts showed hypotensive effect.

There are few instances where a knowledge of the thermal physiology, habitats and lifestyles of a group of closely related species can be mapped onto a well-supported phylogeny and a detailed climatic history. The unique fish fauna of the Southern Ocean, dominated by a single group of fish whose phylogeny is known from traditional and molecular techniques, provides one such opportunity. Further...

1 Department of Biology, University of Bergen, Bergen, Norway, 2 Centre National de la Recherche Scientifique, UMR 7144, Station Biologique, Sorbonne Universités, UPMC Université Paris 06, Roscoff, France, 3 Department of Arctic and Marine Biology, Faculty of Biosciences, Fisheries and Economics, UiT-The Arctic University of Norway, Tromsø, Norway, 4 Hjort Centre for Marine Ecosystem Dynamics, ...