Identifying subtidal burying habitat of Pacific sand lance (Ammodytes hexapterus) in the Strait of Georgia, British Columbia, Canada

2013 ◽  
Vol 115 ◽  
pp. 119-128 ◽  
Author(s):  
Clifford L.K. Robinson ◽  
Doug Hrynyk ◽  
J. Vaughn Barrie ◽  
Jake Schweigert
Keyword(s):  
British Columbia ◽  
Sand Lance ◽  
Strait Of Georgia ◽  
Ammodytes Hexapterus ◽  
Pacific Sand Lance

scholarly journals Diet of the Pacific Sand Lance (Ammodytes hexapterus) in the Salish Sea, British Columbia, in the 1960s

2014 ◽  
Vol 128 (1) ◽  
pp. 57 ◽  
Author(s):  
J. Mark Hipfner ◽  
Moira Galbraith
Keyword(s):  
British Columbia ◽  
Stomach Contents ◽  
Salish Sea ◽  
Sand Lance ◽  
Strait Of Georgia ◽  
Ammodytes Hexapterus ◽  
Saanich Inlet ◽  
The Pacific ◽  
Pacific Sand Lance ◽  
Calanus Marshallae

The diet of the Pacific Sand Lance (Ammodytes hexapterus) was quantified from the stomach contents of 115 Pacific Sand Lance caught in the Strait of Georgia and Saanich Inlet (Vancouver Island) in the Salish Sea, British Columbia, in the spring and summer of 1966, in the Strait of Georgia in the spring and summer of 1967, and in the Strait of Georgia and Saanich Inlet in the spring and summer of 1968. There were 12 major taxa of prey in diets, 8 of which were Crustacea. Based on an index of relative importance, copepods were the dominant prey in 1966 and 1968, but not in 1967, when cladocerans, larvaceans, and teleosts also were common. The copepods Pseudocalanus spp. and Calanus marshallae were the only taxa to appear in diets in all three years. Pseudocalanus dominated the copepod component of diets in 1966, when sampling occurred in July; unspecified copepod nauplii (an early larval stage) were dominant in 1967 and 1968, when sampling occurred earlier (April to June). With the profound changes that have occurred in the Salish Sea over recent decades, these data can serve as a baseline for comparison.

Rhinoceros Auklet (Cerorhinca monocerata) Nestling Diet May Gauge Pacific Sand Lance (Ammodytes hexapterus) Recruitment

1993 ◽  
Vol 50 (9) ◽  
pp. 1908-1915 ◽  
Author(s):  
Douglas F. Bertram ◽  
Gary W. Kaiser
Keyword(s):  
British Columbia ◽  
Sand Lance ◽  
Ammodytes Hexapterus ◽  
Nestling Diet ◽  
Cerorhinca Monocerata ◽  
Pacific Sand Lance ◽  
Term Monitoring ◽  
Rhinoceros Auklet ◽  
Seabird Colonies

We studied (1984–86) the diet of rhinoceros auklet (Cerorhinca monocerata) nestlings at three colonies on the British Columbia coast (Lucy islands, Pine Island, and Triangle Island). On the Lucy Islands, Pacific sand lance (Ammodytes hexapterus) dominated nestling food loads in all years. In 1985, 0+ sand lance dominated the nestling diet on all colonies. Concurrent measures of nestling growth rate, independent indexes of ocean production, and the proportion of sand lance in groundfish stomach samples were also highest in 1985. This suggests a linkage between ocean production, 0+ sand lance abundance, and events on seabird colonies over a broad geographic range. We emphasize the importance of sand lance to temperate seabirds and contrast British Columbia with areas where sand lance are commercially exploited. Rhinoceros auklet nestling diet, growth, and other data collected on colonies suggest that long-term monitoring on seabird colonies can contribute timely and inexpensive information on the recruitment of sand lance stocks in Canadian waters.

First records of Pacific sand lance (Ammodytes hexapterus) in the Canadian Arctic Archipelago

Polar Biology ◽  
2017 ◽  
Vol 40 (11) ◽  
pp. 2291-2296 ◽  
Author(s):  
Marianne Falardeau ◽  
Caroline Bouchard ◽  
Dominique Robert ◽  
Louis Fortier
Keyword(s):  
Canadian Arctic ◽  
Canadian Arctic Archipelago ◽  
Sand Lance ◽  
Ammodytes Hexapterus ◽  
Pacific Sand Lance

scholarly journals Sighting rates and prey of Minke Whales (Balaenoptera acutorostrata) and other cetaceans off Cormorant Island, British Columbia

2019 ◽  
Vol 133 (2) ◽  
pp. 144
Author(s):  
Jared R. Towers ◽  
Christie J. McMillan ◽  
Rebecca S. Piercey
Keyword(s):  
British Columbia ◽  
Pacific Herring ◽  
Balaenoptera Acutorostrata ◽  
Sand Lance ◽  
Clupea Pallasi ◽  
Use Patterns ◽  
Minke Whales ◽  
Ammodytes Personatus ◽  
Pacific Sand Lance ◽  
Lunge Feeding

From June to August 2012, we conducted over 500 h of visual surveys from Cormorant Island, British Columbia, to determine behaviour and habitat use patterns of nearby cetaceans. Seven species were documented, but Minke Whales (Balaenoptera acutorostrata) were by far the most common and were observed lunge feeding at the surface on 15 occasions. In addition, this species was documented surface lunge feeding on Pacific Herring (Clupea pallasi) and Pacific Sand Lance (Ammodytes personatus) on 32 occasions during vessel-based cetacean surveys around Cormorant Island between 2010 and 2014. Although Minke Whales are relatively uncommon in British Columbia, these results indicate that they can regularly be found in specific feeding areas during the summer.

scholarly journals Could the planktonic stages of polar cod and Pacific sand lance compete for food in the warming Beaufort Sea?

2014 ◽  
Vol 71 (7) ◽  
pp. 1956-1965 ◽  
Author(s):  
Marianne Falardeau ◽  
Dominique Robert ◽  
Louis Fortier
Keyword(s):  
Beaufort Sea ◽  
Polar Cod ◽  
Sand Lance ◽  
Larval Stages ◽  
Ammodytes Hexapterus ◽  
Feeding Success ◽  
Bivalve Larvae ◽  
Polar Cod Boreogadus Saida ◽  
Pacific Sand Lance ◽  
Competition For Food

Abstract The boreal Pacific sand lance (Ammodytes hexapterus) was recently detected in southeastern Beaufort Sea (Canadian Arctic), numbering as the second most abundant ichthyoplankton species after the polar cod (Boreogadus saida) in 2011. We contrast the hatching periods, growth, prey selectivity, and feeding success of the planktonic stages of the two species. Polar cod hatched from January to mid-July and sand lance from mid-July to early September, precluding any competition among the larval stages. By weight, sand lance larvae grew 3.7 times faster than polar cod larvae. The co-occurring juveniles of both species fed primarily on copepods and to a lesser extent on bivalve larvae, shifting to larger prey with growth. The feeding success of both species appeared limited by the availability of their preferred prey. A significant diet overlap in juveniles >25 mm suggested potential competition for Pseudocalanus spp., Calanus spp., and bivalve larvae. However, sand lance strongly selected for nauplii while the more diversified diet of polar cod comprised mainly the copepodites of these species. Interspecific competition for food is unlikely at this time but is predicted to amplify with a climate-related reduction in the size of zooplankton prey and an increase in the abundance of sand lance.

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