Marine debris ingestion by Southern Giant Petrels and its potential relationships with fisheries in the Southern Atlantic Ocean

Copello, Sofía; Quintana, Flavio

doi:10.1016/s0025-326x(03)00312-6

Cited by 37 publications

(19 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…When ingested, fragments can cause obstruction in the digestive system of the animal or give it a feeling of satiety, which will then reduce its search for food and eventually cause malnutrition and death. There are numerous reports of animals that contained plastic fragments or whole items inside their digestive tracts (Bugoni et al, 2001;Copello and Quintana, 2003;Ivar do Sul and Costa, 2007;Moore, 2008;Possatto et al, 2011;Galloway, 2015;Lönnstedt and Eklöv, 2016;Vendel et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

Anthropogenic Litter on Beaches With Different Levels of Development and Use: A Snapshot of a Coast in Pernambuco (Brazil)

2018

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 99%

Anthropogenic Litter on Beaches With Different Levels of Development and Use: A Snapshot of a Coast in Pernambuco (Brazil)

2018

View full text Add to dashboard Cite

“…Plastic pollution poses a threat to marine biota (Derraik 2002), particularly seabirds, as they are thought to ingest plastic mistakenly as food (Azzarello & Van Vleet 1987;Harper & Fowler 1987;Ryan 1987a;Copello & Quintana 2003). Although a range of field studies on Procellariiformes (albatrosses and petrels) are equivocal as to whether ingestion of small plastic items substantially compromise seabird health (Ryan 1987b;Vlietstra et al 2002;Colabuono et al 2009), ingested plastics provide a route by which toxic polychlorinated biphenyls are ingested (Ryan et al 1988;Derraik 2002).…”

Section: Introductionmentioning

confidence: 99%

Plastic debris and seabird presence in the Hauraki Gulf, New Zealand

Young

Adams

2010

New Zealand Journal of Marine and Freshwater Research

View full text Add to dashboard Cite

The potential threat of plastic pollution to seabirds within the Hauraki Gulf was assessed by determining its abundance and distribution at two different spatial scales and assessing the community of resident seabirds during July to September 2008. Samples of floating plastics within the gulf were taken during 66 trawls from the surface of the water in three regions within the inner gulf and Waitamata harbour. Within each of these regions, samples were taken in and outside of visually identified natural slick lines that are surface manifestations of small-scale convergence zones. During each trawl, the identity and abundance of seabirds were assessed. Plastic debris was recorded in all three regions sampled with the greatest abundance being recorded in the harbour. Plastics and debris were also significantly more concentrated within natural slick lines. Both user and industrial plastics were identified and consisted of colours and lengths likely to be mistaken as food items for small to medium seabirds. Surface or near-surface feeding seabirds in the gulf most likely mistakenly to consume plastics were fluttering shearwaters, Cape pigeons and Buller's shearwaters. However, these birds were most abundant in the area of the gulf where abundance of plastic pollution was lowest. The Hauraki Gulf is considered significantly less polluted by plastic debris than other severely polluted areas cited in literature.

show abstract

“…Although we were not able to identify the sources of the marine debris recorded in the diet samples of southern giant petrels in this study, there is evidence to suggest that they are derived from fishing activities. As we mentioned above, during the breeding season, southern giant petrels from Arce and Gran Robredo Islands use a huge area of the Patagonian Shelf to feed and birds showed a clear spatio-temporal overlap with fishing activities (Copello 2007). Giant petrels have been seen feeding not only on discards, but also on garbage thrown overboard (E. Bogazzi & F. Firstater pers.…”

Section: Discussionmentioning

confidence: 99%

“…About 950 000 penguin breeding pairs (Schiavini et al 2005) and 65 000 South American sea lions (Reyes et al 1999, Dans et al 2004) breed along the coast. The highest densities of both carrion/prey species are concentrated at the northern end of the San Jorge Gulf in coastal areas in the vicinities of the southern giant petrel colonies (Copello 2007) (Fig. 1).…”

Section: Discussionmentioning

confidence: 99%

Diet of the southern giant petrel in Patagonia: fishery-related items and natural prey

Copello¹,

Quintana²,

Pérez³

2008

Endang. Species Res.

Self Cite

View full text Add to dashboard Cite

There is an increasing interest in dietary composition of threatened seabirds as an important key to understanding their feeding ecology, population dynamics and interaction with fisheries. Several seabird species exploit discards from fisheries as their main food. The southern giant petrel Macronectes giganteus is a wide-ranging procellariform. It is considered a near-threatened species under International Union for Conservation of Nature (IUCN) criteria and has been included as a threatened species in the Appendix 2 of the Convention on the Conservation of Migratory Species of Wild Animals. The diet of Patagonian colonies of this species remains unknown, even though understanding the relationship between southern giant petrels and fisheries may be crucial to the conservation of this species in the Southwestern Atlantic. We describe the diet of the southern giant petrel from north Patagonian colonies using chick regurgitations and evaluate its relationships with the fisheries. Carrion occurred in the diets of 90.8% of birds sampled, while cephalopods occurred in the diets of 65.1%. Crustaceans were present in 43.7% of samples and fishes in 19.4%. Anthropogenic items were found in 72.7% of the samples. The presence in the petrel's diet of target and discarded species from fishery vessels, and the high incidence of marine debris, suggests an extensive use of discard over the Patagonian Shelf. The population of southern giant petrels in northern Patagonia has reached higher, stable levels. Such a population trend could be linked, at least partially, to the use of fisheries discards.

show abstract

Marine debris ingestion by Southern Giant Petrels and its potential relationships with fisheries in the Southern Atlantic Ocean

Cited by 37 publications

References 13 publications

Anthropogenic Litter on Beaches With Different Levels of Development and Use: A Snapshot of a Coast in Pernambuco (Brazil)

Anthropogenic Litter on Beaches With Different Levels of Development and Use: A Snapshot of a Coast in Pernambuco (Brazil)

Plastic debris and seabird presence in the Hauraki Gulf, New Zealand

Diet of the southern giant petrel in Patagonia: fishery-related items and natural prey

Contact Info

Product

Resources

About