Species

Filter by Species

Filter by Toxicity Endpoint Type

Filter by Exposure Endpoint Type

Filter by Chemical

Filter by Location

Displaying 41 - 80 of 95 datapoints
Export to CSV

Zalophus californianus

Citation:

Foraging chracteristics of female northern fur seals (Callorhinus ursius) and California sea lions (Zalophus californianus)

Author(s)
Antonelis, George A., Brent S. Stewart and Wayne F. Perryman
Pages
150-158
Year
Volume
68
Exposure Endpoint Type Endpoint Value Endpoint Description Error Units Sex Life Cycle Stage Location Sample Size Type
Foraging Distance 54.2 32.4 SD km Female Adult Adams Cove, San Miguel Island [lat., 34^o01'55"N; long., 120^o26'25" W] 9 Exposure Factor Datasets
Dietary Composition northern anchovy (65%); Pacific Whiting (52%); market squid (13%) % occurrence of most frequent prey in scats % Female Adult Adams Cove, San Miguel Island [lat., 34^o01'55"N; long., 120^o26'25" W] 23 animals Exposure Factor Datasets
Citation:

Newborn size in marine mammals

Author(s)
Scheffer, V. B.
Pages
19-26
Year
Issue
3
Volume
34
Exposure Endpoint Type Endpoint Description Range Units Sex Life Cycle Stage Sample Size Type
Body Weight - Mean neonate weight 14-17 lbs Not Reported Neonate 16 Exposure Factor Datasets
Citation:

An overview of captive births and survivorship of California sea lions 1985-1995

Author(s)
Gates, Luke, Suzanne Tatersall and David Nicholson
Pages
5-9
Year
Issue
1
Volume
22
Exposure Endpoint Type Endpoint Value Endpoint Description Range Units Sex Life Cycle Stage Location Sample Size Type
Survival/ Mortality 66 mean annual survivorship for animals >30 d 14-100 % Not Reported Juvenile captive in British facilities 38 births/10 yr Exposure Factor Datasets
Citation:

Seasonal and annual variability in the diet of California Sea Lions Zalophus californianus at San Nicholas Island, California, 1981-86

Author(s)
Lowry, Mark S., Brent S. Stewart, Carolyn B. Heath, Pamela K. Yochem and John M. Francis
Pages
331-336
Year
Issue
2
Volume
89
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Location Sample Size Type
Dietary Composition northern anchovy (50.6%); Pacific whiting (29.3%); jack mackerel (27.9%); rockfish (25.9%); Pacific mackerel (11.3%); unid. fishes (6.6%); market squid (21.9%); octopus (6.4%); squid, Onychoteuthis (4.7%); squid, Abraliopsis (2.2%); pelagic red crab (10.8%) % frequency of occurrence of major (>2%) prey in scats % Not Reported Not Reported San Nicholas Island 1232 scats Exposure Factor Datasets
Citation:

Milk and energy intakes of suckling California Sea Lions (Z. californicus) pups in relation to sex, growth and predicted maintenance requirements

Author(s)
Oftedal, Olav T., Sara J. Iverson and Daryl J. Boness
Pages
560-575
Year
Issue
5
Volume
60
Exposure Endpoint Type Endpoint Value Endpoint Description Error Range Units Sex Life Cycle Stage Location Sample Size Type
Food Ingestion Rate 723 daily milk intake 31.0 SE g/d Male Pup San Nicolas Island [lat., 33^oW; long., 119^oW] 24 Exposure Factor Datasets
Food Ingestion Rate 609 daily milk intake 24.0 SE g/d Female Pup San Nicolas Island [lat., 33^oW; long., 119^oW] 19 Exposure Factor Datasets
Body Fat (total or %) 18.7 % Male Pup San Nicolas Island [lat., 33^oW; long., 119^oW] 1 Exposure Factor Datasets
Body Fat (total or %) 19.3 % Female Pup San Nicolas Island [lat., 33^oW; long., 119^oW] 1 Exposure Factor Datasets
Water Ingestion Rate 651 total daily water intake derived from sum of milk water intake and metabolic water production 27.9 SE g/d Male Pup San Nicolas Island [lat., 33^oW; long., 119^oW] 24 Exposure Factor Datasets
Food Ingestion Rate daily energy intake estimated from milk intake; range of means for 2 yrs 2144 - 2636 kcal/d Male Pup San Nicolas Island [lat., 33^oW; long., 119^oW] 5-9/yr Exposure Factor Datasets
Food Ingestion Rate daily energy intake estimated from milk intake; range of means for 2 yrs 2032 - 2152 kcal/d Female Pup San Nicolas Island [lat., 33^oW; long., 119^oW] 1-8/yr Exposure Factor Datasets
Growth Rate daily weight gain; range of means for 2 yrs 92.4 - 120.6 g/d Male Pup San Nicolas Island [lat., 33^oW; long., 119^oW] 5-9/yr Exposure Factor Datasets
Growth Rate daily weight gain; range of means for 2 yrs 95.0 - 109.1 g/d Female Pup San Nicolas Island [lat., 33^oW; long., 119^oW] 4-8/yr Exposure Factor Datasets
Citation:

Relationship between heart rate and oxygen consumption during steady-state swimming in California sea lions

Author(s)
Butler, P. J., A. J. Woakes, I.L. Boyd and S. Kanatous
Pages
35-42
Year
Volume
170
Exposure Endpoint Type Endpoint Value Endpoint Description Error Range Units Sex Life Cycle Stage Sample Size Type
Body Weight - Mean 32.2 1.6 SE 25.7-38.1 kg Both Male and Female Juvenile 6 Exposure Factor Datasets
Metabolic Rate 5.1 resting metabolic rate 0.4 SE ml O2/min/kg Both Male and Female Juvenile 6 Exposure Factor Datasets
Metabolic Rate 26.9 metabolic rate during excercise 1.9 SE ml O2/min/kg Both Male and Female Juvenile 6 Exposure Factor Datasets
Citation:

Effects of the 1982-1983 El Nino on several population parameters and diet of California sea lions on the Califonia channel islands

Author(s)
DeLong, R. L., G.A. Antonelis, C.W. Oliver, B.S. Stewart, M.S. Lowry and P.K. Yochem
Pages
166-172
Publisher
Springer Verlag
Year
Exposure Endpoint Type Endpoint Value Endpoint Description Range Units Sex Life Cycle Stage Location Sample Size Type
Body Weight - Mean range of mean weights taken over 5 yrs at 2 sites 13.1 - 19.6 kg Female Pup San Miguel and San Clemente Islands 41 - 151/yr Exposure Factor Datasets
Dietary Composition see citation figure of % occurrence of prey items in scats % Female Adult San Miguel and San Clemente Islands 73 - 283 Exposure Factor Datasets
Citation:

Spring and summer prey of California sea lions, Zalophus californianus, at San Miguel Island, California 1978-79

Author(s)
Antonelis, George A., Clifford H. Fiscus and Robert L. DeLong
Pages
67-76
Year
Issue
1
Volume
82
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Location Sample Size Type
Dietary Composition Pacific whiting (48.7%); market squid (46.7%); juvenile rockfish (35.9%); northern anchovy (20.0%); red octopus (9.7%); jack mackerel (4.6%); nail squid (4.6%); squid (4.1%);chub mackerel (3.6%); Pacific pompano (2.5%); California lantern fish (2.5%) % occurrence of major prey (>1%) in scats % Both Male and Female Both Adults and Juveniles San Miguel Island 224 scats Exposure Factor Datasets
Citation:

The effect of El Nino on pup development in the California sea lion (Zalophus californianus); I. Early postnatal growth

Author(s)
Boness, D. J., O. T. Oftedal,and K. A. Ono
Pages
173-179
Publisher
Springer Verlag
Year
Exposure Endpoint Type Endpoint Value Endpoint Description Error Units Sex Life Cycle Stage Location Sample Size Type
Body Weight - Mean 8.4 mean size neonate ; pre El Nino 1982 0.146 SE kg Not Reported Neonate San Nicolas Island 39 neonates Exposure Factor Datasets
Body Weight - Mean 8.1 mean weight; El Nino 1983 0.163 SE kg Not Reported Neonate San Nicolas Island 31 neonates Exposure Factor Datasets
Body Weight - Mean 8.2 mean weight, post el Nino 1984 0.229 SE kg Not Reported Neonate San Nicolas Island 16 neonates Exposure Factor Datasets
Body Weight - Mean 8.6 mean weight; 2 years post el Nino (1985) 0.227 SE kg Not Reported Neonate San Nicolas Island 16 neonates Exposure Factor Datasets
Growth Rate 0.132 pre-el Nino; 0-2 months 0.007 SE kg/d Not Reported Pup San Nicolas Island 32 Exposure Factor Datasets
Growth Rate 0.101 pups 0-2 months old; El Nino 1983; 0.007 SE kg/d Not Reported Pup San Nicolas Island 30 Exposure Factor Datasets
Growth Rate 0.125 post el Nino 1984 0.007SE kg/d Not Reported Pup San Nicolas Island 32 Exposure Factor Datasets
Growth Rate 0.130 2 years post el nino (1985); 0-2 months 0.006 SE kg/d Not Reported Pup San Nicolas Island 38 Exposure Factor Datasets
Citation:

Population abundance, pup mortality, and copulation frequency in the California sea lion in relation to the 1983 El Nino on San Nicolas Island

Author(s)
Francis, J. M. and C. B. Heath
Pages
271-288
Publisher
Springer Verlag
Year
Exposure Endpoint Type Endpoint Value Endpoint Description Range Units Sex Life Cycle Stage Location Sample Size Type
Clutches or Litters per year range of fecundity over 4 yrs; peak pup/peak female counts 0.23-0.30 pups/female/yr Female Adult San Nicolas Island 4360-6952 pups Exposure Factor Datasets
Survival/ Mortality 10-18 range of % mortality during the first 2 mo of life; estimated over 3 yrs % Female Pup San Nicolas Island 2679 pups Exposure Factor Datasets
Time of Mating/ Laying May - Aug. time of breeding Both Male and Female Adult San Nicolas Island Not Reported Exposure Factor Datasets
Citation:

The pinnipeds of the California current

Author(s)
Antonelis, George A. and Clifford H. Fiscus
Pages
68-78
Year
Volume
21
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Type
Body Weight - Mean 380 kg Male Adult Not Reported Exposure Factor Datasets
Body Weight - Mean 100 kg Female Adult Not Reported Exposure Factor Datasets
Body Weight - Mean 9 kg Not Reported Neonate Not Reported Exposure Factor Datasets
Time of Mating/ Laying May - June breeding Both Male and Female Adult Not Reported Exposure Factor Datasets
Citation:

Validation of heart rate and doubly labelled water as measures of metabolic rate during swimming in California sea lions

Author(s)
Boyd, I. L., A. J. Woakes, P.J. Butler, R.W. Davis and T.M. Williams
Pages
151-160
Year
Issue
2
Volume
9
Exposure Endpoint Type Endpoint Description Range Units Sex Life Cycle Stage Sample Size Type
Metabolic Rate range of mean field metabolic rates estimated by oxygen consumption using direct respirometry and doubly labelled water methods; exercise regime used to simulate swimming 11.8-15.01 ml O2/min/kg Both Male and Female Juvenile 6 Exposure Factor Datasets
Citation:

Thermoregulation and resting metabolic rate of California sea lion (Zalophus californianus) pups

Author(s)
Thompson, Steven, D., Kathryn A. Ono, Olav T. Oftedal and Daryl J. Boness
Pages
730-736
Year
Issue
6
Volume
60
Exposure Endpoint Type Endpoint Value Endpoint Description Error Range Units Sex Life Cycle Stage Location Sample Size Type
Body Weight - Mean 12,000 231 SE 8,333 - 14, 512 g Both Male and Female Pup captured at San Nicolas Island, CA 39 Exposure Factor Datasets
Metabolic Rate 0.78 resting metabolic rate measured over a range of ambient temperatures (16-25C) 0.10 ml O2/g/hr Both Male and Female Pup captured at San Nicolas Island, CA 39 Exposure Factor Datasets
Citation:

Food habits of the California sea lion, Zalophus californianus, at San Clemente Island, California, 1981-86

Author(s)
Lowry, Mark S., Charles W. Oliver, Carolyn Macky and Jeannie B. Wexler
Pages
509-521
Year
Volume
88
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Location Sample Size Type
Dietary Composition northern anchovy (51.3%); jack mackerel (24.6%); pelagic crab (21.2%); Pacific whiting (19.6%); rockfish (19.0%); market squid (16.3%); blacksmith (10.7%); Pacific mackerel (9.5%); octopus (5.1%); squid (2.2%); senorita (1.1%); lanternfish (1.3%) % of scats in which major (>1%) prey occurred % Not Reported Not Reported San Clemente Island 1309 scats Exposure Factor Datasets
Dietary Composition northern anchovy (24.7%); jack mackerel (11.8%); pelagic red crab (10.2%); Pacific whiting (9.4%); rockfish (9.2%); market squid (7.9%); blacksmith (5.1%); Pacific mackerel (4.6%); octopus (2.5%); squid (1.1%) % occurrence of major (>1%) prey taxon from a tally of occurrences of all prey taxa in scats % Not Reported Not Reported San Clemente Island 1309 scats Exposure Factor Datasets
Download CSV

Comment

Please let us know if the information on this page is helpful for you. Enter your comment and leave your email address if you would like to receive a response. Thank you!
OEHHA is subject to the California Public Records Act and other laws that require the release of certain information upon request. If you provide comments, please be aware that your name, address and e-mail may be available to third parties. In addition, all public comments will be posted on our web site upon the close of the comment period.
OEHHA California Office of Environmental Health Hazard Assessment