We noted dolphins displacing from and towards two main directions, the northeastern portion of the archipelago and the southeastern portion of the archipelago (where the Dolphin's Bay is).
Research on spinner dolphins in the Fernando de Noronha Archipelago started over 20 years ago, focusing mainly on the Dolphin's Bay (Silva-Jr.
In that sense, this is a pioneering study of dolphins' occupancy in the northeastern portion of Fernando de Noronha Archipelago.
In the Fernando de Noronha Archipelago, previous studies show daily variations in dolphin' occupation pattern.
In the Fernando de Noronha Archipelago, spinner dolphins are now occupying more than one area or slowly changing their main area of occupation from the Dolphin's bay to the Inter Islands area.
2009) recommends against scuba diving with spinner dolphins in Fernando de Noronha Archipelago and advocates the closure of a diving point known as 'Sela Ginete Island'.
Canadian sovereignty over the waters of the Arctic Archipelago
, and specifically the Northwest Passage, is not under threat as a result of increased international commercial shipping at this time, nor will it be in the near future.
This archipelago is composed of twelve major and several minor islands located in eastern Lake Michigan.
The land vertebrates (amphibians, reptiles, birds, mammals) of the islands have long attracted the attention of biologists, but the only attempt at a comprehensive survey of the entire Archipelago was that of Hatt et al.
Recently, Placyk and Gillingham (2002) summarized literature on the distribution of reptiles and amphibians in the northern portion of the Lake Michigan Archipelago (the Beaver Archipelago).
Also included were observations from our own fieldwork in the Archipelago.
To form a mainland species pool we included all those species that have ranges adjacent to the Archipelago in the lower peninsula of Michigan (37 species; Harding 1997).