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Cetaceans stranded in the Netherlands from 1998 to 2007 Naturalis
Camphuysen, C.J.; Smeenk, C.; Addink, M.; Jansen, O.E..
Between 1998 and 2007, 2063 cetaceans were found stranded in the Netherlands, representing at least 14 species. Two species, humpback whale (Megaptera novaeangliae) and Blainville’s beaked whale (Mesoplodon densirostris), are additions to the Dutch list. Apart from the first humpback whales, relatively many balaenopterid whales were found in comparison with previous decades. Range extension of recovering populations may explain part of this trend. However, the decline in strandings frequency in sperm whales (Physeter macrocephalus), another species with a slowly recovering Atlantic population but with a distinct peak in strandings in the 1990s, suggests that the factors underlying these changes are complex. During the 20th century, the strandings frequency...
Tipo: Article / Letter to the editor Palavras-chave: Cetaceans; Strandings; The Netherlands; North Sea; Wadden Sea; Fin whale; Sei whale; Minke whale; Humpback; 42.84.
Ano: 2008 URL: http://www.repository.naturalis.nl/record/328649
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The distribution and diversity of whales and dolphins (Cetacea) in the southern North Sea: 1970-2005 Naturalis
Meij, S.E.T. van der; Camphuysen, C.J..
Between 1970 and 2005 sightings data of cetaceans in the southern North Sea were collected as part of the Marine Mammal Database of the Dutch Seabird Group. The data include incidental sightings and reports as well as results from systematic surveys and seawatching data. They are therefore difficult to correct for fluctuations in observer effort. The material was evaluated firstly to see which species occur in Dutch waters and, secondly, to see if any spatial and temporal trends in abundance can be observed. In this study the harbour porpoise (Phocoena phocoena) is excluded from the analysis, except in the discussion, where the results are put into context with data about strandings and overall abundance. The status of the 17 different species that have...
Tipo: Article / Letter to the editor Palavras-chave: Whales; Dolphins; Cetecea; Balaenoptera; Megaptera; Physeter; Hyperoodon; Mesoplodon; Globicephala; Tursiops; Lagenorhynchus; Delphinus; Stenella; Grampus; Sightings; The Netherlands; North Sea; Status; Distribution; Diversity; 42.84; 42.65; 42.94.
Ano: 2006 URL: http://www.repository.naturalis.nl/record/431764
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