Pacific Biological Station

Progress reports of the Pacific Coast stations by Fisheries Research Board of Canada ( Serial )
in English and held by 68 libraries worldwide

Synopsis of the parasites of fishes of Canada by T. E McDonald ( Book )
1 edition published in 1995 in English and held by 55 libraries worldwide

Synopsis of the parasites of fishes of Canada. Supplement (1978-1993) by T. E McDonald ( Book )
3 editions published in 1995 in English and held by 53 libraries worldwide

Biology and management of sablefish, Anoplopoma fimbria : papers from the International Symposium on the Biology and Management of Sablefish, Seattle, Washington, 13-15 April 1993 by International Symposium on the Biology and Management of Sablefish ( Book )
1 edition published in 1997 in English and held by 49 libraries worldwide

Mark-recapture experiment for the 2009 chinook salmon spawning escapement in the Atnarko River ( Book )
2 editions published in 2010 in English and held by 47 libraries worldwide
Two-sample, closed population estimates of spawning escapement in Pacific salmon populations have constituted a common practice. This pooled-Petersen markrecapture approach seems appropriate for cases where closed-population assumptions are met, but could ignore major bias sources if violations to these assumptions are overlooked. In addition, the richness of information commonly generated by many Pacific salmon mark-recapture studies is not being utilized when following a pooled- Petersen protocol, therefore missing important opportunities to enrich our knowledge of salmon ecology. The main goals of this paper are: (i) to provide an estimate of the 2009 Chinook salmon (Oncorhynchus tshawytscha) spawning escapement in the Atnarko River applying the standard pooled-Petersen mark-recapture experiment; (ii) to apply an alternative and robust approach to spawning escapement estimation within a model selection framework encompassing suites of open-population and closed-population maximum likelihood estimators based on individual encounter histories and formal testing of primary closed-population assumptions; and, (iii) to demonstrate the use of information provided by individual encounter histories from mark-recapture experiments allowing the reconstruction of migration phenologies and the estimation of stream residence times. Spawning escapements of 3,593 (95% CI: 3,077 - 4,108) females, 5,636 (95% CI: 4,640 - 6,632) males, and 1,532 (95% CI: 1,028 - 2,035) jacks were estimated with the Petersen model for a total spawning escapement of 10,761 (95% CI: 8,745 - 12,775; CV = 5.7%) fish. These numbers exclude the fish removed from the system for hatchery purposes (969). Using the maximum likelihood model selection approach, closure assumptions were violated and best open-population escapement estimates for females, males, and jacks were 8,232 (SE: 615.2), 7,877 (SE: 513.2), and 4,159 (SE: 796.5), respectively, for a total escapement estimate of 20,268 (95% CI: 16,985 - 24,601; CV = 9.5%). These numbers represent the fish escaping the terminal fisheries and entering the study area and include the fish removed from the system for hatchery purposes (969) and their removal's effect on capture probabilities. Accounting for the survival rates of Chinook salmon within the study period (0.95 for females, 0.94 for males, and 0.95 for jacks) left an average of 19,157 total effective natural spawners. The analysis of scales from a sample of salmon carcasses indicated that about 80% of the spawners consisted of age-3 and age-4 individuals with 100% of the age-3 fish and 91.4% of the age-4 fish exhibiting ocean-type life history. Only 37.9% of the age-5 fish and 28.6% of the age-6 fish exhibited this life history type. The analysis of coded-wire-tag data from a sample of adipose-fin-clipped carcasses indicated that 37.0% of the females, 50.6% of the males, and 61.4% of the jacks in the spawning escapement were of hatchery origin, which translated into an overall hatchery contribution of 49%. Important sources of uncertainty in the mark-recapture experiment of the 2009 Atnarko Chinook spawning escapement were associated to a high tag-loss rate, inconsistencies in the record of recaptures and losses-on-capture, and the return to the system of fish previously removed for hatchery purposes. Although these factors influence escapement estimates of mark-recapture experiments in general, they are particularly crucial in analyses dependent on individual encounter histories. The identification of these issues is expected to improve the reliability of spawning escapement estimates derived from robust analytical approaches in future years. It is herein argued that the intensive and extensive sampling effort currently at work in the Atnarko should be capitalized on by following an experimental approach characterized by the evaluation of closure assumptions, mark-recapture model selection, and the optimization of the use of information.

Biological synopsis of the Chinese mitten crab (Eriocheir sinensis) by É Veilleux ( Book )
4 editions published in 2007 in English and held by 42 libraries worldwide
The Chinese mitten crab (Eriocheir sinensis) is an aquatic invader that could pose a potential threat to Canadian freshwater and brackish biological communities and ecosystems. The crab can cause bank erosion by intensive burrowing and disrupt fisheries by feeding on trapped fish and baits and by damaging nets. As a prerequisite for conducting a risk analysis of a potential invasion of Canadian waters by this species, this biological synopsis summarizes information on the species' description, distribution, biology and natural history, use by humans and impacts.--Document.

A biological synopsis of smallmouth bass (Micropterus dolomieu) ( Book )
3 editions published in 2009 in English and held by 39 libraries worldwide
This synopsis reviews biological information on the smallmouth bass in support of a risk assessment evaluating the impacts of its expansion into non-native areas of Canada. Smallmouth bass is native to the fresh waters of eastern-central North America. Its North American expansion started in the late 1800s and it is now one of the most widely distributed fishes in the world, mainly because of its popularity among anglers. Smallmouth bass usually reside in the littoral zone of clear lakes and slower moving rivers. Juvenile bass > 50mm TL are piscivorous, as are adult fish, and their diet is comprised of crayfish, minnows and other fish and amphibians. Introduced bass can have significant impacts on native fish communities through predation, especially for small-bodied fish such as minnows and salmonids and can cause the extirpation of some populations.

Biological synopsis of pumpkinseed (Lepomis gibbosus) ( Book )
3 editions published in 2009 in English and held by 39 libraries worldwide
This synopsis reviews biological information on the pumpkinseed in support of a risk assessment evaluating the impacts of its expansion into non-native areas of Canada. Pumpkinseed are native to eastern North America. Pumpkinseed live in small lakes, ponds, weedy bays of larger lakes, and in the quiet waters of slow-moving streams. They tolerate a wide range of environmental conditions; maximum known age is eight to ten years. Although pumpkinseed are omnivorous, their main diet is invertebrates. Some populations of pumpkinseed have adapted to feeding on benthic organisms, including snails. Larger pumpkinseed may also be piscivorous. Pumpkinseed compete with native fish communities for habitat and food, and this can have a negative impact on native species richness and/or abundance. Little research has, however, been undertaken on the species outside its native range in Canada.

A biological synopsis of walleye (Sander vitreus) by G. F Hartman ( Book )
3 editions published in 2009 in English and held by 39 libraries worldwide
This synopsis reviews biological information on the walleye in support of a risk assessment evaluating the impacts of its expansion into non-native areas of Canada. Walleye is a fecund piscivore widely distributed in North America from about 32° to 68° north latitude. Large, shallow, turbid lakes are optimal. Walleye are top predators and will eat almost any living organism they can get into their mouths. Yellow perch are the main prey. While much sought by anglers, walleye also supports substantial commercial fisheries. Walleye have been heavily stocked across North America for 120 years, to establish new populations, supplement existing stocks, or for put-and-take fisheries. The ecosystem effects of these introductions have been wide-ranging and are difficult to predict or control. Introduction of walleye may affect other fish through competition, predation, or by altering species composition. In western reservoirs, such as in the Columbia, walleye predation may be a serious problem for salmonids.

Survey of northern abalone, Haliotis kamtschatkana, populations in Lotbinière Bay, British Columbia, March 2000 by B. G Lucas ( Book )
3 editions published between 2000 and 2002 in English and held by 32 libraries worldwide