Interspecific relationships in density among the whale community in the Antarctic

Kasamatsu, Fujio; Matsuoka, Koji; Hakamada, Takashi

doi:10.1007/s003009900107

Cited by 50 publications

(49 citation statements)

References 23 publications

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“…In addition, designated and costly surveys usually cover only a small fraction of a species' range (e.g. Kasamatsu et al 2000, Hammond et al 2002, Waring et al 2002, due to the vastness of the marine environment and the panglobal distributions of many species. Thus, these surveys often yield little more than a snapshot, both in time and space, of a given species' occurrence.…”

Section: Abstract: Habitat Suitability Modeling · Marine Mammals · Gmentioning

confidence: 99%

“…We analyzed whaling data following an approach similar to that taken by Kasamatsu et al (2000) and Cañadas et al (2002) when investigating cetacean occurrence in relation to environmental gradients and generated species' response curves for 5 species with quasi-cosmopolitan distributions, including sperm whales Physeter macrocephalus, blue whales Balaenoptera musculus, fin whales Balaenoptera physalus, humpback whales Megaptera novaeangliae, and dwarf minke whales B. acutorostrata. The dwarf minke whale occurs to some extent sympatrically with its closely related sister species, the Antarctic minke whale B. bonaerensis.…”

Section: Marine Mammal Habitat Usagesmentioning

confidence: 99%

See 1 more Smart Citation

Mapping world-wide distributions of marine mammal species using a relative environmental suitability (RES) model

Kaschner¹,

Watson²,

Trites³

et al. 2006

Mar. Ecol. Prog. Ser.

222

200

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Section: Abstract: Habitat Suitability Modeling · Marine Mammals · Gmentioning

confidence: 99%

Section: Marine Mammal Habitat Usagesmentioning

confidence: 99%

Mapping world-wide distributions of marine mammal species using a relative environmental suitability (RES) model

Kaschner¹,

Watson²,

Trites³

et al. 2006

Mar. Ecol. Prog. Ser.

222

200

View full text Add to dashboard Cite

“…Preliminary results are already available from the REMMOA surveys (REcensements des 1987/88, 1992/93, 1994/95, and 2008/09. These surveys have provided considerable information on the abundance and distribution of the more southerly migrating baleen whale species (particularly Antarctic minke, blue, and humpback whales) and sperm whales within the Southern Ocean waters south of 60˚S (Branch and Butterworth, 2001a;Branch and Butterworth, 2001b;Kasamatsu et al, 1988;Kasamatsu et al, 1996;Kasamatsu et al, 1990;Kasamatsu et al, 2000) and have included the first evidence of the recovery of Antarctic blue whales (Branch et al, 2004). The considerable volume of data from these cruises provides the opportunity for further studies, particularly of the distributional data in relation to oceanographic and topographic features.…”

Section: Southwest Indian Oceanmentioning

confidence: 99%

Cetacean research in the southern African subregion: a review of previous studies and current knowledge

Elwen

Findlay

Kiszka

et al. 2011

African Journal of Marine Science

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Cetacean research, in terms of the number of papers, research groups and areas for which data are available has expanded considerably in the Southern African Subregion (SAS) in the last decade, especially in the South West Indian Ocean (SWIO). Here we review cetacean research in the SAS from the 1800s to the present to provide an overview of findings, investigate trends and identify knowledge gaps. Data are presented separately for large whales (those subject to commercial whaling) and smaller cetaceans and are separated by era and ocean basin. Over 550 peer-reviewed papers and books were identified relating to research on cetaceans within the subregion. More than half (284) have been produced since 1990 and 193 relate specifically to South African waters. The most studied species are those that are most accessible due to their coastal distributions

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“…Therefore, correcting sighting frequencies for effort, using relative indices of abundance or encounter rates (Kasamatsu et al 2000b, Griffin & Griffin 2003, MacLeod et al 2003, or producing stratified estimates of cetacean densities is recommended. Alternatively, categories of habitat variables may be defined so that they contain equal effort.…”

Section: Overlay Of Sightings and Maps Of Habitat Variablesmentioning

confidence: 99%

“…The simplest and most frequently used technique to describe cetacean distributions consists of plotting species locations on maps of habitat variables, such as bathymetry (S. E. , D'Amico et al 2003, Fulling et al 2003, sea surface temperature (Gaskin 1968, Au & Perryman 1985, Kasamatsu et al 2000b, or the edges of sea ice (Murase et al 2002). Frequency of occurrence may also be calculated in pre-defined habitat categories.…”

Section: Overlay Of Sightings and Maps Of Habitat Variablesmentioning

confidence: 99%

Techniques for cetaceanhabitat modeling

Redfern¹,

Ferguson²,

Becker³

et al. 2006

Mar. Ecol. Prog. Ser.

375

338

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Cetacean-habitat modeling, although still in the early stages of development, represents a potentially powerful tool for predicting cetacean distributions and understanding the ecological processes determining these distributions. Marine ecosystems vary temporally on diel to decadal scales and spatially on scales from several meters to 1000s of kilometers. Many cetacean species are wideranging and respond to this variability by changes in distribution patterns. Cetacean-habitat models have already been used to incorporate this variability into management applications, including improvement of abundance estimates, development of marine protected areas, and understanding cetacean-fisheries interactions. We present a review of the development of cetacean-habitat models, organized according to the primary steps involved in the modeling process. Topics covered include purposes for which cetacean-habitat models are developed, scale issues in marine ecosystems, cetacean and habitat data collection, descriptive and statistical modeling techniques, model selection, and model evaluation. To date, descriptive statistical techniques have been used to explore cetacean-habitat relationships for selected species in specific areas; the numbers of species and geographic areas examined using computationally intensive statistic modeling techniques are considerably less, and the development of models to test specific hypotheses about the ecological processes determining cetacean distributions has just begun. Future directions in cetacean-habitat modeling span a wide range of possibilities, from development of basic modeling techniques to addressing important ecological questions.

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Interspecific relationships in density among the whale community in the Antarctic

Cited by 50 publications

References 23 publications

Mapping world-wide distributions of marine mammal species using a relative environmental suitability (RES) model

Mapping world-wide distributions of marine mammal species using a relative environmental suitability (RES) model

Cetacean research in the southern African subregion: a review of previous studies and current knowledge

Techniques for cetaceanhabitat modeling

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Interspecific relationships in density among the whale community in the Antarctic

Cited by 50 publications

References 23 publications

Mapping world-wide distributions of marine mammal species using a relative environmental suitability (RES) model

Mapping world-wide distributions of marine mammal species using a relative environmental suitability (RES) model

Cetacean research in the southern African subregion: a review of previous studies and current knowledge

Techniques for cetaceanhabitat modeling

Contact Info

Product

Resources

About

Techniques for cetaceanhabitat modeling