Prey preferences among the community of deep-diving odontocetes from the Bay of Biscay, Northeast Atlantic

Spitz, Jérôme; Cherel, Yves; Bertin, Stéphane; Kiszka, Jérémy J.; Dewez, Alexandre; Ridoux, Vincent

doi:10.1016/j.dsr.2010.12.009

Cited by 107 publications

(115 citation statements)

References 37 publications

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“…Ancistrocheirids have previously been identified from specimens in the North Atlantic and the Mediterranean (Podesta & Meotti 1991, Carlini et al 1992, Santos et al 2007). The family Cycloteuthidae has also been previously reported from the Atlantic (Santos et al 2001, Spitz et al 2011), but was identified for the first time from the North Pacific in negligible amounts (<1%). We also confirmed that Mastigoteuthidae contributes negligibly (<1%) to the North Pacific diet, while it is more important to the diet of whales in the North Atlantic (Table 3; Santos et al 2001).…”

Section: Cephalopod Contribution To Dietmentioning

confidence: 81%

“…They also contributed more to the diet by mass in previously examined specimens from California (83.0%) and Japan (91.8%) (Ohizumi & Kishiro 2003, Adams et al 2015 and contributed 8.1% and 51.8% to the diet by mass from 2 Alaskan whales (Foster & Hare 1990, Fiscus 1997. Gonatid squids are also recognized as being important to Cuvier's beaked whale diet in the North Atlantic (Santos et al 2001, Spitz et al 2011), albeit to a lesser degree than observed in North Pacific whales. Gonatidae contributed less than 2% by number in South Africa (Ross 1984, Sekiguchi 1994).…”

Section: Cephalopod Contribution To Dietmentioning

confidence: 87%

“…On a global scale, the family Cranchiidae appears to be the most important cephalopod family to Cuvier's beaked whale diet based on reports from New Zealand, South Africa, the North Atlantic, and the Mediterranean (Table 3; Fordyce et al 1979, Ross 1984, Sekiguchi 1994, Blanco & Raga 2000, Santos et al 2001, Kova<ić et al 2010, Spitz et al 2011. Cranchiid squid contributed between 7.6 and 47.1% by number in prior studies from the North Pacific (Foster & Hare 1990, Fiscus 1997, Ohizumi & Kishiro 2003, Adams et al 2015.…”

Section: Cephalopod Contribution To Dietmentioning

confidence: 99%

“…Prey identification from stomach content analysis has only been conducted for fewer than 50 individuals world-wide, with a bias of approximately 65% towards males. The majority of Cuvier's beaked whale stomachs examined have come from stranded specimens in the North Atlantic (n = 20) or Mediterranean (n = 12), where findings have been reported in a number of separate studies (Podesta & Meotti 1991, Carlini et al 1992, Blanco & Raga 2000, Lefkaditou & Poulo poulos 1998, Santos et al 2001, Spitz et al 2011. When considering the total number of prey items identified among Cuvier's beaked whales examined world-wide, the data available are heavily weighted towards the North Atlantic.…”

Section: Introductionmentioning

confidence: 99%

“…When considering the total number of prey items identified among Cuvier's beaked whales examined world-wide, the data available are heavily weighted towards the North Atlantic. Over 8000 prey items were identified from an individual specimen stranded near Scotland (Santos et al 2001), and prey was identified from 10 specimens stranded over a 10 yr period in the Bay of Biscay (Spitz et al 2011) and from 7 specimens stranded in the Canary Islands (Santos et al 2007). In the Southern Hemisphere, Cuvier's beaked whale stomach content remains have been identified from 5 individuals from South Africa (Ross 1984, Sekiguchi 1994) and 1 whale from New Zealand (Fordyce et al 1979).…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Diet of Cuvier’s beaked whales Ziphius cavirostris from the North Pacific and a comparison with their diet world-wide

West¹,

Walker²,

Baird³

et al. 2017

Mar. Ecol. Prog. Ser.

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Cuvier's beaked whales Ziphius cavirostris are distributed world-wide and are recognized as vulnerable to anthropogenic noise. They are the most common cetacean to strand in temporal and spatial proximity to navy sonars. Cuvier's beaked whales are known for their extreme diving capabilities, but diet information, fundamental to understanding foraging at depth, is limited from most regions. We report on 11 441 prey items from stomach contents of 16 stranded or bycaught specimens collected between 1976 and 2016 across the North Pacific. Overall diet was composed of cephalopods, fish, and crustaceans, but was dominated by cephalopods. Thirty-seven cephalopod species representing 16 families contributed 98

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Section: Cephalopod Contribution To Dietmentioning

confidence: 81%

Section: Cephalopod Contribution To Dietmentioning

confidence: 87%

Section: Cephalopod Contribution To Dietmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Diet of Cuvier’s beaked whales Ziphius cavirostris from the North Pacific and a comparison with their diet world-wide

West¹,

Walker²,

Baird³

et al. 2017

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

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Cetacean occurrence, habitat preferences and potential for cetacean–fishery interactions in Iberian Atlantic waters: results from cooperative research involving local stakeholders

Goetz

Read

Ferreira

et al. 2014

Aquatic Conservation

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1. Iberian Atlantic waters are heavily exploited by Spanish and Portuguese fisheries. Overlaps between fishery target species and cetacean diet, and between fishing grounds and cetacean foraging areas, can lead to cetacean-fishery interactions including bycatch mortality of cetaceans. results broadly consistent with previous studies on cetacean occurrence in the same area, although sightings frequency for some cetacean species was biased by survey method. Opportunistic sampling has certain restrictions concerning reliability, but can cover a wide area at comparatively low cost and make use of local ecological knowledge to yield information required for cetacean conservation.

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Cetacean‐mediated vertical nitrogen transport in the oceanic realm

Woodstock,

Kiszka,

Ramírez‐León

et al. 2023

Limnology & Oceanography

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In natural systems, animal‐mediated nutrient transport can be a major driver of primary productivity, but the role of marine megafauna such as cetaceans in mediating the transfer and recycling of nutrients has been overlooked. Here, we developed a spatially resolved, stochastic, nutrient‐transport model for cetaceans in the oceanic Gulf of Mexico using species−specific foraging depths, distributions, and diets. An estimated 6.4 × 108 mmol N d−1, or 0.06 mt N yr−1 ind−1, is transported to the surface from depths below 100 m by the 19 cetacean species that occur in the oceanic Gulf of Mexico; 75% of this transport occurs seaward of the continental slope, but the per area transported nitrogen is greater on the continental slope (200–1000 m) than in the ocean basin. Benthos to surface transport comprised 6.0 × 107 mmol N d−1 and was much more common on the continental slope than the open basin. Compared to an existing physical‐biogeochemical model, the transported nutrients add 8% N d−1 to the estimated ammonium concentration above the nutricline and could add 16% N d−1 to the surface ammonium concentration if expelled nutrients remain at the surface. Through feeding on diel vertical migrants, cetaceans retain an additional 2.7 × 107 mmol N d−1 in the surface waters that would otherwise return to depth via downward diel vertical migration. Cetaceans contribute to nutrient movements and recycling in the oceanic Gulf of Mexico, and may provide one of the few allochthonous sources of nutrients for primary producers in oligotrophic ecosystems.

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Prey preferences among the community of deep-diving odontocetes from the Bay of Biscay, Northeast Atlantic

Cited by 107 publications

References 37 publications

Diet of Cuvier’s beaked whales Ziphius cavirostris from the North Pacific and a comparison with their diet world-wide

Diet of Cuvier’s beaked whales Ziphius cavirostris from the North Pacific and a comparison with their diet world-wide

Cetacean occurrence, habitat preferences and potential for cetacean–fishery interactions in Iberian Atlantic waters: results from cooperative research involving local stakeholders

Cetacean‐mediated vertical nitrogen transport in the oceanic realm

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