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Data from: Temperature dependent habitat selection by narwhals
- 负责人：
- DOI：
- doi:10.5061/dryad.zcrjdfn81
- 摘要：
- with?reduction in sea ice are expected to modify the niches of several Arctic marine apex predators. The Scoresby Sound fjord complex in East Greenland
Data from: Oxygen limitations on marine animal distributions and the collapse of epibenthic community structure during shoaling hypoxia
- 负责人：
- 关键词：
- deoxygenation epibenthos habitat shrinkage in situ oxygen limits ocean hypoxia Ocean Networks Canada oxygen loss ROV transect video analysis
- DOI：
- doi:10.5061/dryad.1p55v
- 摘要：
- on component species. We repeated the same benthic transect (n = 10, between 45 and 190 m depths) over 8 years in a seasonally hypoxic fjord usi
Data from: Season and site fidelity determine home range of dispersing and resident juvenile Greenland cod (Gadus ogac) in a Newfoundland fjord
- 负责人：
- DOI：
- doi:10.5061/dryad.2f2b3
- 摘要：
- We used acoustic telemetry to track age 1 juvenile Greenland cod Gadus ogac in Newman Sound, Newfoundland, from October 2010 to November 2012, in 2 consecutive 1 yr experiments. Using single (Year 1) and reciprocal (Year 2) transplant study designs, we investigated seasonal dispersal, home range area, and potential homing behaviour between coves ~3.5 km apart. We tracked individuals moving at metre to kilometre scales, using a network of 26 to 32 hydrophones. We converted tag detections to position estimates in order to calculate seasonal home ranges and individual movement patterns. Home range increased significantly with season (pre-winter, winter, and post-winter) in both study years. Mean seasonal home range area ranged from 0.29 to 3.47 km2 in Year 1 and 0.43 to 1.72 km2 in Year 2. In contrast, fish size-at-capture, capture location, and release location had no significant effect on seasonal home range. Increased movement distance during the winter and post-winter season suggests a reduction in predation pressure on age 1 juveniles at these times, challenging previous assumptions about their vulnerability. We observed variable behaviour spanning residency to kilometre-scale dispersal movements, which represent greater distances than previously assumed. Similar proportions of control and transplant fish visited the other cove, indicating an absence of homing behaviour among dispersing individuals. Juveniles of marine fishes are often characterized as key life history transition stages between vulnerable larvae and older, larger individuals which are less susceptible to predators. Our results indicate that early juvenile life stages may be substantially more mobile than presupposed and contribute to population connectivity in temperate fishes in ways not well described previously.
Data from: A year in hypoxia: epibenthic community responses to severe oxygen deficit at a subsea observatory in a coastal inlet
- 负责人：
- DOI：
- doi:10.5061/dryad.2s75n
- 摘要：
- zones such as the northeast Pacific. Saanich Inlet, on the west coast of Canada, is a natural seasonally hypoxic fjord where certain continental shelf
Data from: Personalities influence spatial responses to environmental fluctuations in wild fish
- 负责人：
- Villegas‐Ríos, David
- 关键词：
- Atlantic cod Animal personality Behavioural plasticity Spatial Ecology home range proactivity fish behaviour
- DOI：
- doi:10.5061/dryad.qt8s031
- 摘要：
- (Gadus morhua). Next, we released the fish back into the sea and monitored their spatial behaviour over large temporal (16 months) and spatial (a whole fjord
Data from: Disassembly of an epibenthic assemblage in a sustained severely hypoxic event in a northeast Pacific basin
- 负责人：
- Gasbarro, Ryan
- DOI：
- doi:10.5061/dryad.88dd3vk
- 摘要：
- eoxygenation. In 2016, an anomalously severe and widespread hypoxic event occurred in the fjord after a decade of oxygen decline at a rate of 0.07?mL?L?1?y?1 as measured
Data from: Previously unknown evolutionary groups dominate the ssDNA gokushoviruses in oxic and anoxic waters of a coastal marine environment
- 负责人：
- DOI：
- doi:10.5061/dryad.7gg25
- 摘要：
- anoxic fjord on the coast of Vancouver Island, British Columbia. Amplicon sequencing of samples from the mixed oxic surface (10 m) and deeper anoxic (200
Data from: Fine-scale population dynamics in a marine fish species inferred from dynamic state-space models
- 负责人：
- Rogers, Lauren A.
- 关键词：
- state-space models population dynamics time-series age-structured model Bayesian spatial structure k-fold cross validation
- DOI：
- doi:10.5061/dryad.td8nb
- 摘要：
- two models: one which assumes all sampled cod belong to one larger population, and a second which assumes that each fjord contains a unique population
