Reproductive parameters of eastern North Pacific blue whales Balaenoptera musculus

Abstract Knowledge of reproduction in baleen whales such as the blue whale Balaenoptera musculus is still limited. Here, we combined the sighting histories of 24 yr of reproductively active female blue whales from the United States (US) west coast and the Gulf of California (GoC), Mexico. The latter region is a nursing ground for some of the blue whales that...

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Aerial behavior by the fin whale (Balaenoptera physalus) in the wake of a freighter and near other boats, Marine and Freshwater Behaviour and Physiology

Abstract: This study confirms that the fin whale (Balaenoptera physalus) exhibits infrequent aerial behavior and that it sometimes occurs near different types of boats. We describe this uncommon behavior in the wake of a freighter and near other boats, provide details that expand upon an aerial rotation technique briefly noted in fin whales by others, and show that we have...

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Distribution, densities, and annual occurence of individual blue whales (Balaenoptera musculus) in the Gulf of St. Lawrence, Canada from 1980-2008

Abstract This document describes the distribution of individually identified blue whales (Balaenoptera musculus) in the Gulf of St. Lawrence (GSL), Canada. Data were collected by the Mingan Island Cetacean Study (MICS) from 1980 to 2008. The aim of this project was to provide additional information for designating blue whale critical habitat as required under the Canadian Species at Risk Act....

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