The burrowing behavior of sand lance, Ammodytes hexapterus: Effects of oil-contaminated sediment

Pearson, Walter H.; Woodruff, Dana L.; Sugarman, Peter C.; Olla, Bori L.

doi:10.1016/0141-1136(84)90008-4

Cited by 24 publications

(8 citation statements)

References 16 publications

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“…Nonbiota such as sand and pebbles were the second most FO at 75%. These observations support beluga feeding on Sandlance, and species known to burrow in substrate (Pearson et al 1984). Sandlance larvae became the second most abundant fish larvae in the Beaufort Sea in 2011 following its first observation in 2010 (Falardeau et al 2014).…”

Section: Beluga Dietsupporting

confidence: 63%

Diet and feeding observations from an unusual beluga harvest in 2014 near Ulukhaktok, Northwest Territories, Canada

et al. 2018

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The Eastern Beaufort Sea (EBS) beluga (Delphinapterus leucas) population are an important traditional food for the Inuit of the Inuvialuit Settlement Region, Northwest Territories (NT) Canada. In 2014, over 30 beluga whales were harvested at Ulukhaktok, NT, the first occurrence of a large harvest in the area on record. Unlike observations from the established beluga harvest monitoring program in the Mackenzie Estuary, these belugas had numerous prey and prey items in their stomachs. Our study objectives were to combine traditional and local knowledge (TLK) from beluga hunters with the analysis of dissected stomachs to identify EBS beluga diet, feeding behaviour, as well as gain insights into potential drivers of the event. TLK holders witnessed foraging behaviors such as herding schools of fish. Stomach dissections revealed Sandlance (Ammodytes sp.) to be the predominant prey species, comprising 90% of identified otoliths, occurring in 92% of stomachs. The low presence of Arctic Cod (Boreogadus saida), a preferred prey types, raised questions about prey availability/accessibility and if alternative prey types can sustain beluga energetic needs. Based on interviews of TLK holders, avoidance of noise due to human activity, killer whale presence, and shifts in prey were factors that may have led to the increased beluga sightings near Ulukhaktok, NT.

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Section: Beluga Dietsupporting

confidence: 63%

Diet and feeding observations from an unusual beluga harvest in 2014 near Ulukhaktok, Northwest Territories, Canada

et al. 2018

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“…Wright et al (2000) found that Ammodytes marinus densities were relatively lower in areas where the silt+clay weight fraction ranged from 2 to 10% than in areas where the weight fraction was < 2%. Pearson et al (1984) and Pinto et al (1984) argued that differences in sediment preference between different species of sandeel were minimal. In summary, the aforementioned studies strongly suggest that the silt+clay weight fraction in the sediment provides a strong indicator of sandeel habitat quality.…”

Section: Discussionmentioning

confidence: 99%

Short- and long-term effects of an offshore wind farm on three species of sandeel and their sand habitat

Deurs

Grome²,

Kaspersen³

et al. 2012

Mar. Ecol. Prog. Ser.

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Offshore wind farms (OWFs) are being constructed at a high rate due to a high demand, both economically and politically, for sources of renewable energy. We investigated the short-term and long-term effects of an OWF situated in the North Sea off western Denmark (Horn Rev I; global position: 7.84°E, 55.48°N) on 3 ecologically important species of sandeel. Since sandeels display a distinct preference for sand habitats with a weight fraction of silt+clay < 2%, we expected changes in habitat quality to provide a causal explanation for the potential effect of the OWF on the sandeel community. A Before-After-Control-Impact (BACI) analysis was applied. A baseline survey from March 2002 (prior to construction) was combined with surveys conducted in March 2004 (short-term effects) and March 2010 (long-term effects) plus an additional survey in September 2009. Sandeels were collected using a modified scallop dredge and sediment samples using a van Veen grab. The results from an analysis on all species combined revealed a positive short-term effect on the densities of both juveniles and adults, which was consistent with a reduction in the fraction of silt+clay. In the long term, a negative effect on juveniles was found; however, this effect was neither consistent with the additional survey in 2009 nor the silt+clay fraction. Subsequent analysis at the species level revealed that the effects detected were driven by Hyperoplus lanceolatus, which dominated the study area in all years. Habitat quality was high in both the affected and control area throughout the study period.

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“…Monaghan 1996). Crude oil 1s t0xi.c to fish, and contamination can lead to substantial fish mortality (Stebbing et al 1992), and also to alterations in fish physiology and behaviour that could affect their availability to seabird predators (e.g sandeel emergent behaviour, Pearson et al 1984).…”

Section: Introductionmentioning

confidence: 99%

Sub-lethal effects of an oil pollution incident on breeding kittiwakes Rissa tridactyla

Walton¹,

Turner²,

Austin³

et al. 1997

Mar. Ecol. Prog. Ser.

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fittiwakes from the colony closest to the site of the wreck of the 'Braer' oil tanker in Shetland, Scotland, in 1993 were studied in the breeding season following the spill. Sub-lethal effects of the spill on breeding kittiwakes were assessed by comparison with a n extensive data set collected at the same site (Sumburgh Head) during the 3 yr prior to the spill. Breeding performance in 1993 was very similar to that in 1992, with relatively good breeding success and short, frequent foraging trips. However, haematological data revealed a significant level of anaemia in the breeding kittiwakes at Sumburgh in 1993 compared to birds sampled in the same year at control colonies elsewhere in Scotland. The return rate of adults to the Sumburgh colony between 1992 and 1993 was exceptionally low, and nest-site and mate fidelity also appeared low. This was not a consequence of reduced survival, but was due to some adults not breeding in 1 or 2 yr following the spill, and subsequently returning to breed at the colony in later years. Such behavioural disruption may have considerable consequences for the dynamics and structure of the colony

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The burrowing behavior of sand lance, Ammodytes hexapterus: Effects of oil-contaminated sediment

Cited by 24 publications

References 16 publications

Diet and feeding observations from an unusual beluga harvest in 2014 near Ulukhaktok, Northwest Territories, Canada

Diet and feeding observations from an unusual beluga harvest in 2014 near Ulukhaktok, Northwest Territories, Canada

Short- and long-term effects of an offshore wind farm on three species of sandeel and their sand habitat

Sub-lethal effects of an oil pollution incident on breeding kittiwakes Rissa tridactyla

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