The rime of the modern mariner: evidence for capture of yellow-nosed albatross from Amsterdam Island in Indian Ocean longline fisheries

Thiebot, Jean‐Baptiste; Demay, Jérémie; Marteau, Cédric; Weimerskirch, Henri

doi:10.1007/s00300-015-1680-5

Cited by 3 publications

(2 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Second, this study provides the first figure of bycatch susceptibility for a seabird species, accounting separately for all stages. This showed a high susceptibility for the non‐breeding stages, as previously suggested from seabird tracking studies across life‐stages (Grémillet et al ., ; Phillips et al ., ; Trebilco et al ., ; Delord and Weimerskirch, ; Reid et al ., ; Thiers et al ., ), ship‐based bycatch monitoring (Gales et al ., ; Petersen et al ., ) or clues found on birds (Thiebot et al ., ). These non‐breeding stages usually last longer than the breeding ones (Thiebot et al ., ), and may be the reason for the non‐breeding birds accumulating bycatch risk over time.…”

Section: Discussionmentioning

confidence: 97%

167 individuals versus millions of hooks: bycatch mitigation in longline fisheries underlies conservation of Amsterdam albatrosses

Thiebot

Delord

Barbraud

et al. 2015

Aquatic Conservation

Self Cite

View full text Add to dashboard Cite

International audience1. Industrial fisheries represent one of the most serious threats worldwide to seabird conservation. Death ofbirds in fishing operations (i.e. bycatch) has especially adverse effects on populations of albatrosses, which haveextremely low fecundity.2. The single population worldwide of Amsterdam albatross (Diomedea amsterdamensis) comprises only 167individuals and risks considerable decline over the mid-term from additional mortality levels potentially inducedby fisheries. The priority actions listed in the current conservation plan for this species included characterizingthe longline fisheries operating within its range, dynamically analysing the overlap between albatrosses and thesefisheries, and providing fisheries management authorities with potential impact estimates of longline fisheries onthe Amsterdam albatross.3. During all life-cycle stages and year quarters the birds overlapped extensively with fishing effort in thesouthern Indian and Atlantic oceans. Fishing effort, and consequently overlap score (calculated as the productof fishing effort and time spent by the birds in a spatial unit) was highest in July–September (45% of the hooksannually deployed). Just three fleets (Taiwanese, Japanese and Spanish) contributed to >98% of the overlap scoresfor each stage (72% from the Taiwanese fleet alone, on average). Daily overlap scores were higher for thenon-breeding versus the breeding stages (3-fold factor on average).4. Based on previous bycatch rates for other albatross species, this study estimated that longline fisheriescurrently have the potential to remove ~2–16 individuals (i.e. ~5%) each year from the total Amsterdamalbatross population, depending on whether bycatch mitigation measures were or were not systematicallyemployed during the fishing operations.5. Recent bycatch mitigation measures may be instrumental in the conservation of the Amsterdamalbatross. This study suggests three further key recommendations: (1) to focus conservation efforts on theaustral winter; (2) to require all operating vessels to report ring recoveries; and (3) to allocate specialregulation of fishing operations in the areas of peak bycatch risk for the Amsterdam albatrosses

show abstract

Section: Discussionmentioning

confidence: 97%

167 individuals versus millions of hooks: bycatch mitigation in longline fisheries underlies conservation of Amsterdam albatrosses

Thiebot

Delord

Barbraud

et al. 2015

Aquatic Conservation

Self Cite

View full text Add to dashboard Cite

show abstract

“…Albatrosses are able to swallow the baited hooks, or to attack the fish hauled up on the lines; however they cannot break up the line when they are caught, and may thus drown, unless they are cut free by the fishers or have ingested hooks from lost snoods (Phillips et al 2010;Thiebot et al 2015). Hence, the number of interactions indirectly witnessed from nest-based monitoring only reflects the non-lethal cases, after which the birds were able to come back to the nest.…”

Section: Discussionmentioning

confidence: 99%

Albatross chicks reveal interactions of adults with artisanal longline fisheries within a short range

et al. 2018

Self Cite

View full text Add to dashboard Cite

Incidental capture in fisheries ("bycatch") is a major threat to global marine biodiversity, especially to those species with low fecundity such as albatrosses. Efforts to reduce bycatch have been undertaken in industrial fisheries, however seabird interactions with artisanal, small-scale fleets remain largely unknown. Torishima (Japan) is an important breeding site for two albatross species (short-tailed Phoebastria albatrus and blackfooted P. nigripes), and lies in the range of the artisanal longline fishery for the splendid alfonsino Beryx splendens. In February-March 2017, we GPS-tracked 23 foraging trips of P. nigripes feeding chicks, and monitored prevalence of fishing gear at the nests using a metal detector. Albatrosses foraged within 280 km from Torishima, and only 3.7% of the GPS locations occurred over the shallow habitats targeted by the alfonsino fishery (150-500 m), suggesting relatively low risks of interaction. However, 190 (54.3%) nests of P. nigripes contained fishing gear, among which 12 (3.4%) nests or chicks contained a hook or an unidentified metallic object. Six hooks were also collected from P. albatrus nests. All found hooks, except one, originated from the alfonsino fishery, indicating that both albatross species actually interacted with this fishery at sea. Both approaches provided data from returning birds, and do not reflect possible lethal cases at sea. Monitoring sublethal effects of bycatch, and inviting small-scale fisheries to report the gear lost at sea, is desirable to further help quantifying and reducing the impact of fisheries on seabirds.

show abstract

Intentional killing and extensive aggressive handling of albatrosses and petrels at sea in the southwestern Atlantic Ocean

Gianuca¹,

Bugoni

Jiménez³

et al. 2020

Biological Conservation

View full text Add to dashboard Cite

The rime of the modern mariner: evidence for capture of yellow-nosed albatross from Amsterdam Island in Indian Ocean longline fisheries

Cited by 3 publications

References 16 publications

167 individuals versus millions of hooks: bycatch mitigation in longline fisheries underlies conservation of Amsterdam albatrosses

167 individuals versus millions of hooks: bycatch mitigation in longline fisheries underlies conservation of Amsterdam albatrosses

Albatross chicks reveal interactions of adults with artisanal longline fisheries within a short range

Intentional killing and extensive aggressive handling of albatrosses and petrels at sea in the southwestern Atlantic Ocean

Contact Info

Product

Resources

About