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Thursday, July 30, 2020 | History

2 edition of effects of late-season angling on gamete viability and early fry survival in Atlantic Salmon found in the catalog.

effects of late-season angling on gamete viability and early fry survival in Atlantic Salmon

Gulf Fisheries Centre (Canada)

effects of late-season angling on gamete viability and early fry survival in Atlantic Salmon

by Gulf Fisheries Centre (Canada)

  • 291 Want to read
  • 34 Currently reading

Published by Dept. of Fisheries and Oceans, Gulf Fisheries Centre in Moncton, N.B .
Written in English

    Subjects:
  • Fishing.,
  • Gametes.,
  • Atlantic salmon.

  • Edition Notes

    Statementby Kevin Davidson ... [et al.].
    SeriesCanadian technical report of fisheries and aquatic sciences -- 1982
    ContributionsDavidson, Kevin.
    Classifications
    LC ClassificationsSH"223"C35"no.1982
    The Physical Object
    Pagination12 p. :
    Number of Pages12
    ID Numbers
    Open LibraryOL20396011M

    Peculiarities of reproduction, early ontogeny, methods of egg incubation, and influence of temperature on development are compared in wolffish (Anarhichas lupus L.) and in salmonids, mainly Atlantic salmon (Salmo salar L.). Reproductive indices of females are similar in both species, but differ in males due to the small production of sperm in wolffish, a difference explained by internal.   Assessing risks of invasion through gamete performance: farm Atlantic salmon sperm and eggs show equivalence in function, fertility, compatibility and competitiveness to wild Atlantic salmon (which is beyond the maximum sperm survival time in Atlantic salmon, Yeates ). Each of the four cross with a significant effect of gamete.

    The latency period of post-ovulation of Clarias gariepinus has been demonstrated to affect the viability of its eggs and embryos. This study has examined the effects of various latency periods on the viability of eggs, fertilization, hatchability and survival of the African catfish Clarias ies were produced using eggs successively stripped from the African catfish at 10, The effects of 3-h and h exposures to elevated water Pco₂ (hypercarbia) on blood pH and post-mortem flesh quality were also measured in adult Atlantic salmon. While elevated water Pco₂ disturbed blood pH as predicted, there were minimal effects on flesh quality based on rigor mortis and flesh pH assessments, which were further reduced if.

    A linear mixed-effects model examining heart rate elevation (Fig 4B) across three time points (10, 15, and 20 h) with fish ID as a random variable revealed a significant negative effect of time (i.e., heart rate declined across the time points examined—evident in Fig 5B; β = ± , t 39 = , P = ), but no significant effects. Egg-to-fry survival of two strains of Atlantic salmon (Salmo salar) was evaluated under laboratory conditions in two commercial stream egg incubators. The survival was also examined based on egg developmental stage (i.e., green eggs, eyed egggs, advanced eggs). There was no significant difference in survival of eggs in the Jordan-Scotty and Whitlock-Vibert incubators.


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Effects of late-season angling on gamete viability and early fry survival in Atlantic Salmon by Gulf Fisheries Centre (Canada) Download PDF EPUB FB2

The effects of catch and release angling on muscle physiology, survival and gamete viability were examined in wild Atlantic salmon (Salmo salar), just prior to e in the white muscle increased to μmol∙g −1 after angling and recovered within 4 h.

Muscle pH decreased from at rest to following angling, but returned to resting levels within 2 by:   1. Introduction. The number of Atlantic salmon (Salmo salar) have declined during the last 15 years in Norway (Anon., ), as in most parts of their range (Anon., ).In order to reduce the mortality from recreational angling on fish stocks, hook and release programmes have been introduced in many salmon rivers, especially in North America, but also in Europe (e.g.

Barnhart,NASCO Cited by: gamete viability and early fry survival in Atlantic salmon. Can Tech Rep Fish Aquat Sci 1−12 Dee River Trust () Monitoring of the River Dee fishery. The effects of late season angling on gamete viability and early fry survival in Atlantic salmon By K. Davidson; J.

Hayward; M. Hambrook; A.T. Bielak; J. Sheasgreen Complete document (PDF, KB). Effects of late-season catch and release angling on anaerobic metabolism, acid–base status, survival, and gamete viability in wild Atlantic salmon (Salmo salar) Article Feb Effects of late season. of late season angling on gamete viability and early fry survival in Atlantic salmon.

Can. Tech. Rep. Fish. Aquat. Sci. Similar to other studies on the effects of catch-and-release angling on Atlantic salmon, we identified high survival of the fish released by anglers. One mortality among 39 salmon represents a high probability of survival for salmon given good angling practices.

Interestingly, we calculated a high recapture rate of salmon in Lakselva. Lennox et al. The effects of late season angling on gamete viability and early fry survival in Atlantic salmon.

Can. Effects of catch and release angling on Atlantic salmon, Salmo salar L., of the Conne River, Newfoundland. Fisheries Management and Ecology 9: –   Survival and development of Atlantic salmon eggs and fry at three different temperatures. Aquaculture, Groups of Atlantic salmon (Salmo salar) eggs were incubated at 12, 10 and 8C.

At 12C mortality was high and fry averaged little more than half the weight of those hatched at 10 or 8C. The effects of late season angling on gamete viability and early fry survival in Atlantic salmon Davidson, K.G.

Hayward, J. Hambrook, M. Bielak, A.T. Sheasgreen, J. / Gulf Status of Atlantic salmon in the Richibucto River, New Brunswick inAtkinson, G. Claytor, R.R. / Gulf. A study was conducted in New Brunswick to examine the magnitude of the physiological disturbance in different sizes of wild Atlantic salmon angled in the late season, assess survival under these conditions and investigate the effects of angling on gamete viability.

Effects of late-season catch and release angling on anaerobic metabolism, acid–base status, survival, and gamete viability in wild Atlantic salmon (Salmo salar) Richard K.

Booth, James D. Kieffer, Bruce L. Tufts, Kevin Davidson, Alex T. Bielak. Recreational fishing represents a growing driver of tourism in Scandinavia, particularly in rural regions (Stensland,Kauppila and Karjalainen, ).In Norway, the Atlantic salmon Salmo salar fishery is managed by national policies and regulations but also by local regulations developed either by landowners with exclusive rights to fishing on their property or by landowner associations.

Effect of simulated catch-and-release angling on postrelease mortality and egg viability in sockeye salmon (Oncorhynchus nerka) Matthew J. Smukall, a b Amy Shaw, b Donald C. Behringer a. a Univeristy of Florida, Fisheries and Aquatic Sciences, Gainesville, Florida, USA.

b Cook Inlet Aquaculture Association, Kenai, Alaska, USA. Eighteen Atlantic salmon (Salmo salar) (total body length 58– cm) were radio tagged following angling and then released in the lower reaches of the River Alta, Northern aim was to compare the long-term effects of catch-and-release angling on newly ascended salmon (assumed salmon from a previous study that were released in the upper reaches of the.

"Effects of late-season catch and release angling on anaerobic metabolism, acid-base status, survival, and gamete viability in wild Atlantic Salmon (Salmosalar)." Canadian Journal of Fisheries and Aquatic Science 52 ():   Assessing risks of invasion through gamete performance: farm Atlantic salmon sperm and eggs show equivalence in function, fertility, compatibility and competitiveness to wild Atlantic salmon.

Sarah E. Yeates. School of Biological Sciences, University of East Anglia, Norwich Research Park, Norwich, UK.

Incidence and impacts of escaped farmed Atlantic salmon Salmo salar in nature Eva B. Thorstad1, Ian A. Fleming2, Philip McGinnity3, Doris Soto4, Vidar Wennevik5 & Fred Whoriskey6 1 Norwegian Institute for Nature Research (NINA), Tungasletta 2, NO Norway. e-mail [email protected] 2 Ocean Sciences Centre, Memorial University of Newfoundland, St.

John’s, Newfoundland. Effects of late- season catch-and-release angling on anaerobic metabolism, acid-base status, survival, and gamete viability in wild Atlantic Salmon (Salmo salar).

Effects of late-season catch and release angling on anaerobic metabolism, acid-base status, survival, and gamete viability in wild Atlantic salmon (Salmo salar). Canadian Journal of Fisheries and Aquatic Sciences 52(2):. Advanced fry which were fed earliest grew at similar rates to those produced at lower temperatures and attained the greatest weight.

Biomass gain was more dependent upon survival than upon mean fish weight. The second part of this study investigated the effects of timing of first feeding on fry growth and survival.

Surface and interstitial water levels and temperatures were monitored at 2 min resolution. Data were collected for a period of 3 months, coinciding with early stages of salmonid egg development in this catchment. Egg compartments were checked on six occasions for survival after different hydropeaking events.

Dead eggs were counted and removed.Combinations of short day (6 h light h dark, 6LD) and long days (18L:6D) were able to control spawning, providing advanced and delayed spawning times in a range of salmonids, including masu salmon (Takashima & Yamada ), Atlantic salmon (Taranger et al.), brown trout (Bromage et al.

) and rainbow trout (Bromage et al.