Notes on New Zealand mammals 6. Second report on the stomach contents of long‐finned pilot whales,<i>Globicephala melas</i>

Beatson, E.; O’Shea, Steve; Stone, Clive; Shortland, T

doi:10.1080/03014220709510095

Cited by 15 publications

(12 citation statements)

References 2 publications

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“…In Brazil, the stomachs of fives whales stranded from 1985 to 1998 contained remains of squid of the oceanic families Lycoteuthidae, Histioteuthidae, and Cranchiidae (Santos and Haimovici 2001). Cephalopods were also found as the main prey category in pilot whales stranded in France (Pierrepont et al 2005), New Zealand (Beatson et al 2007, Beatson andO'Shea 2009), and the Bay of Biscay (Spitz et al 2011).…”

Section: Diet Compositionmentioning

confidence: 98%

Patterns and trends in the diet of long‐finned pilot whales (Globicephala melas) in the northeast Atlantic

Santos

Monteiro

Vingada

et al. 2013

Marine Mammal Science

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There is little previous information on feeding habits of long‐finned pilot whales (Globicephala melas) in the northeast Atlantic. The present study analyzed stomach contents of pilot whales stranded in Portugal (n = 6), Galicia (northwest Spain) (n = 32), and Scotland (United Kingdom) (n = 10), from 1990 to 2011. These animals ranged from 213 to 555 cm in length (24 females, 19 males and 5 of unknown sex). The main prey identified were cephalopods of the families Octopodidae and Ommastrephidae, the former being numerically more important in Iberia (Portugal and Galicia) and the latter more important in Scotland, with Iberian whales also showing a more diverse diet. Multivariate analysis revealed evidence of geographical and seasonal variation in diet. Generalized Additive Modeling results indicated that more octopus (Eledone cirrhosa) were eaten in Iberia than in Scotland, more in the first half of the year, and more in larger whales. Numbers of ommastrephid squids in the stomach decreased over the study period and varied with season and whale length. This study confirms cephalopods as the main prey of pilot whales, as previously reported, although our results also suggest that, in the northeast Atlantic, ommastrephid squid are largely replaced as the main prey by octopods at lower latitudes.

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Section: Diet Compositionmentioning

confidence: 98%

Patterns and trends in the diet of long‐finned pilot whales (Globicephala melas) in the northeast Atlantic

Santos

Monteiro

Vingada

et al. 2013

Marine Mammal Science

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“…Of the three dietary patterns proposed from previous studies, the Tasmanian stranded LFPWs exhibit a diverse diet, similar to LFPW diet from the Faroe Islands [29, 74], Italy [73], Argentina [41], Northeast Atlantic [31, 32] and the western North Atlantic [30, 75]. This is in contrast to LFPWs stranded in New Zealand waters, which appear to have restricted dietary diversity (≤3 species) dominated by squid [3, 19, 20, 39]: despite the numerous cephalopod species inhabiting New Zealand and surrounding waters. However, sample size for the New Zealand studies were low, many animals had empty stomachs or few dietary remains, and no animals appeared to have eaten in close proximity to the stranding location [3, 20, 39].…”

Section: Discussionmentioning

confidence: 74%

“…This is in contrast to LFPWs stranded in New Zealand waters, which appear to have restricted dietary diversity (≤3 species) dominated by squid [3, 19, 20, 39]: despite the numerous cephalopod species inhabiting New Zealand and surrounding waters. However, sample size for the New Zealand studies were low, many animals had empty stomachs or few dietary remains, and no animals appeared to have eaten in close proximity to the stranding location [3, 20, 39]. Cephalopods were the main prey for two LFPWs from the coast of Normandy (88% numerical proportion), however only two cephalopod species were recovered ( Sepia sp.…”

Section: Discussionmentioning

confidence: 88%

“…Similar investigations into the diet of 14 LFPWs stranded in two events along the New Zealand coastline found a restricted diet (≤3 species) dominated by Nototodarus spp. and Octopus maorum [3, 20, 39]. The diet of Southern Hemisphere LFPWs has also been investigated in Chile [40], Argentina [41], southern Brazil [42], South Africa [43] and Antarctic/Sub-Antarctic [44].…”

Section: Introductionmentioning

confidence: 99%

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Stomach contents of long-finned pilot whales, Globicephala melas mass-stranded in Tasmania

Beasley

Cherel

Robinson³

et al. 2019

PLoS ONE

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New data are reported from analyses of stomach contents from 114 long-finned pilot whales mass-stranded at four locations around Tasmania, Australia from 1992–2006. Identifiable prey remains were recovered from 84 (74%) individuals, with 30 (26%) individuals (17 females and 13 males) having empty stomachs. Prey remains comprised 966 identifiable lower beaks and 1244 upper beaks, belonging to 17 families (26 species) of cephalopods. Ommastrephidae spp. were the most important cephalopod prey accounting for 16.9% by number and 45.6% by reconstructed mass. Lycoteuthis lorigera was the next most important, followed by Ancistrocheirus lesueurii. Multivariate statistics identified significant differences in diet among the four stranding locations. Long-finned pilot whales foraging off Southern Australia appear to be targeting a diverse assemblage of prey (≥10 species dominated by cephalopods). This is compared to other similar studies from New Zealand and some locations in the Northern Hemisphere, where the diet has been reported to be primarily restricted to ≤3 species dominated by cephalopods. This study emphasises the importance of cephalopods as primary prey for Southern long-finned pilot whales and other marine vertebrates, and has increased our understanding of long-finned pilot whale diet in Southern Ocean waters.

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“…This life off the coast can be explained by their feeding mode [30]. This species is known to feed mainly on cephalopods and occasionally on fish [9,32,33]. These preys are widely below 300 m deep, and some of them (Brachioteuthis riisei for example) can be caught up to 800 m [21].…”

Section: Discussionmentioning

confidence: 99%

Characterization of Short-Finned Pilot Whales (Globicephala Macrorhynchus) Population along the Caribbean Coast of Martinique

Fléchet¹,

Pillet²,

Bordes³

et al. 2019

AOMB

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The Caribbean coast of Martinique has a great wealth of marine mammals, with almost twenty species observed, including the short-finned pilot whale Globicephala macrorhynchus. Little is known about this specie in Martinique. Boat surveys between "le rocher du Diamant" and "l'îlet la Perle" allow gathering data and pictures. Statistical analysis, SIG and photo identification provide first information on the pilot-whale population. Results indicate there is a rather small but healthy population of G. macrorhynchus in Martinique. It is composed of both resident and migrant groups and no seasonality was observed. Correlation between the percentage of teenagers and the number of boats might imply an effect of whale-watching on individuals.

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Notes on New Zealand mammals 6. Second report on the stomach contents of long‐finned pilot whales,Globicephala melas

Cited by 15 publications

References 2 publications

Patterns and trends in the diet of long‐finned pilot whales (Globicephala melas) in the northeast Atlantic

Patterns and trends in the diet of long‐finned pilot whales (Globicephala melas) in the northeast Atlantic

Stomach contents of long-finned pilot whales, Globicephala melas mass-stranded in Tasmania

Characterization of Short-Finned Pilot Whales (Globicephala Macrorhynchus) Population along the Caribbean Coast of Martinique

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