| TAXONOMY | BIOGEOGRAPHY | AGE & GROWTH | REPRODUCTION | MORTALITY | DEMOGRAPHY | HABITAT ASSOCIATION & TROPHIC INTERACTIONS | GENETICS | BEHAVIOR | PATHOLOGY | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| CLASS | Life Stage | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Chondrichthyes | Seasonal Cycle | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| SUBCLASS | Growth Parameters | Fertilization and Pupping Period (^^^^^ = peak fertilization; ***** = peak pupping; ##### = doubtful pupping records) | Juveniles | Adolescents | Adults | Genetic Variance | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Elasmobranchii | Total Length (cm) to Weight (kg) Equation (Location) | Length Conversion Equations (Location) | Max. Reported Length (cm) | Geographic Area (max. length) | Length at Birth (cm) | Geographic Area (length at birth) | Linf in cm | k | t0 | r2 | Growth Model | Ageing Method(s) | Validation | Verification | Geographic Area (Age & Growth Study) | Source (Age & Growth Study) | Longevity | Method of Longevity Estimation | Breeding Behavior Mode of Reproduction | Sexual Dimorphism | Length (cm) & Age at 1st Maturity | 50% Maturity | Geographic Area | Courtship | Fertilization | Egg Deposition | Partuition | Mortality Estimates | Food Habits | Food Habits | Food Habits | Substocks | Haplotype Diversity (Geographic Area) | Nucleotide Diversity (#) | Mean Number of Alleles per Locus (SE) | % Polymorphic Loci | Mean Heterozygosity | Approach | Effective Population Size | Source (Genetic Variance) | Behavioral Interactions | Migration & Movement | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Superorder | Order | Family | Genus | Species | Author | Synonymy | Common Name(s) | Eastern North Pacific | Global | Observed Depth Range (m) | Male | Female | Both | Male | Female | Both | Male | Female | Both | Male | Female | Both | Male | Female | Male | Female | Courtship | Nursery | Jan. | Feb. | March | April | May | June | July | Aug. | Sept. | Oct. | Nov. | Dec. | Source (Location) (Seasonal Cycle) | Reproductive Cycle | Fecundity Range and/or Mean Ovarian Eggs | Uterine Eggs | Embryos | Sex Ratio at Birth (M:F) | Uterine Egg or embryo Number at Female TL (cm) or Age | Size Specific Fecundity Equations (length or weight range) | Gestation Time | Natural (M) | Fishing (F) | Total (Z) | Method of Mortality Estimation | Age Range used to Calculate Mortality | Source (Mortality Estimates) | r | er (lambda) | R0 | G(T) | cx/wx | Method | Geographic Region | Source (Demography Study) | Habitat | Diet | Foraging Strategy | Periodicity | Predators | Habitat | Diet | Foraging Strategy | Periodicity | Predators | Habitat | Diet | Foraging Strategy | Periodicity | Predators | Trophic Level | Expected (SE) | Observed (SE) | Interspecific | Intraspecific | Tagging/Tracking Studies | Movement Patterns | Homing Ability (Home Range) | Parasites | Diseases | ||||||||||||||||||||||||
| Galeomorphii |
Carcharhiniformes |
Scyliorhinidae |
Apristurus |
brunneus |
(Gilbert, 1892) |
Catulus brunneus (Gilbert,
1892) |
brown catshark |
eastern Gulf of Alaska off Icy Point to northern Baja California (Mecklenburg et al., 2002) |
NA | 33 to 1000 m (Ebert,
2003) |
males: WT = 3.577 x 10-6
TL2.971 (southern California) (Cross,
1988) females: WT = 2.379 x 10-6 TL3.059 (southern California) (Cross, 1988) |
NF | 69 cm TL (Eschmeyer
et al., 1983) |
NG | 7 to 9 cm TL (Ebert,
2003) |
NG | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | oviparity |
NF | 45 to 50 cm TL (Cross,
1988) |
42.5 to 47.5 cm TL (Cross,
1988) |
NF | NF | NF | midwater, within 200 to 300 m of the bottom (Cross,
1988) |
Jones and Geen, 1977
(British Columbia, Canada) Cross, 1988 (southern California) |
continuous (Cross,
1988) |
29 (Cross, 1988) |
NF | 2 (Ebert, 2003) |
NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | midwater between 200 and 300 m off the bottom, but generally not in waters over 1000 m deep (Ebert, 2003) | NF | NF | NF | NF | midwater between 200 and 300 m off the bottom, but generally not in waters over 1000 m deep (Ebert, 2003) | crustaceans (Pasiphaeidae, Euphausiacea, Galatheidae, Sergestidae), cephalopods (Teuthoidea), teleosts (Myctophidae) (Cross, 1988) | NF | NF | NF | outer continental shelf and upper slopes, demersal over rocky reefs or soft mud bottoms (Ebert, 2003) | crustaceans (Pasiphaeidae, Euphausiacea, Galatheidae,
Sergestidae), cephalopods (Teuthoidea), teleosts
(Myctophidae) (Cross,
1988) |
NF | NF | elasmobranchs, sperm whales (Ebert,
2003) |
3.7 (Cortes, 1999) |
NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | Nematoda (1 family, 1 sp.), Protozoa (Love
and Moser, 1983) |
NF | ||||||||||||
| Galeomorphii |
Carcharhiniformes |
Scyliorhinidae |
Apristurus |
kampae |
Taylor, 1972 |
NA | longnose catshark white-finned catshark (B.E.Flammang, pers.comm.) |
Cape Blanco, Oregon to Gulf of California (Ebert,
2003) |
NA | 180 to 1888 m (Ebert,
2003) |
NF | NF | 57 cm TL (Ebert,
2003) |
central California |
14 cm TL (Ebert,
2003) |
NG | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | oviparity |
NF | 50 cm TL (Ebert,
2003) |
48 to 52 cm TL (Ebert,
2003) |
NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | 2 (Ebert, 2003) |
NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | upper continental shelf (Ebert,
2003) |
crustaceans [Decapoda (deepwater shrimps)], cephalopods,
small mesopelagic teleosts (Ebert,
2003) |
NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF |
| Galeomorphii |
Carcharhiniformes |
Scyliorhinidae |
Cephaloscyllium |
ventriosum |
(Garman, 1880) |
Scyllium ventriosum (Garman,
1880) Catulus uter (Jordan and Gilbert, 1896) Scyliorhinis ventriosus (Regan, 1908) Cephaloscyllium ventriosum (Garman, 1913) Cephaloscyllium uter (Roedel and Ripley, 1950) |
swell shark |
Monterey, California to Chile, including Gulf of California and Guadalupe Island (Miller and Lea, 1972) | NA | 5 to 457 m (Ebert,
2003) |
NF | NF | 110 cm TL (Castro,
1983) |
NG | 13 to 15 cm TL (Eschmeyer
et al., 1983) |
NG | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | oviparity |
NF | 73 cm TL (Grover,
1972b) |
70 cm TL (Grover,
1972b) |
NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | 2 (Ebert, 2003) |
NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | gastropods, teleosts (Semicossyphus pulcher) (Grover, 1972a) |
NF | NF | NF | NF | NF | rocky areas, in/near kelp beds usually on bottom (Eschmeyer
et al., 1983; Castro,
1983) |
teleosts [Pomacentridae (Chromis punctipinnis)],
crustaceans (Eschmeyer
et al., 1983) |
possibly feed at night on inactive resting fish that are sheltering in crevices and kelp (Nelson and Johnson,
1970) utilize bioelectroreception (Tricas, 1981) |
nocturnal (Nelson
and Johnson, 1970) |
NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | resident (Nelson
and Johnson, 1970) |
NF | Monogenea (1 family, 1 sp.) (Love
and Moser, 1983) |
NF |
| Galeomorphii | Carcharhiniformes | Scyliorhinidae | Cephalurus |
cephalus |
(Gilbert, 1892) |
Catulus cephalus (Gilbert, 1892) Scyliorhinus cephalus (Regan, 1908) Cephalurus cephalus (Bigelow and Schroeder, 1941) |
lollipop cat shark head shark, lollipop shark (Balart et al., 2000) |
southern Baja California and Gulf of California, Mexico (Compagno, 1984) |
NA | 155 to 927 m (Compagno, 1984) 112 m (Castro-Aguirre, 1981) |
both: WT = 0.000012 * TL2.84 (Balart et al., 2000) both: WT = 0.0014 * TL1.9438 (Castro-Aguirre, 1981) |
NF | males: 29.8 cm TL (Balart et al., 2000) females: 29.5 cm TL (Castro-Aguirre, 1981; Balart et al., 2000) | off Pacific coast of Baja California, Mexico (Balart et al., 2000) off Pacific coast of Baja California, Mexico (Castro-Aguirre, 1981; Balart et al., 2000) | 10 cm TL (Compagno, 1984) |
NG | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | ovoviviparity |
structural and size (males four times larger) differences in dentition (Castro-Aguirre, 1981) | 19 cm TL (Compagno, 1984) |
19 cm TL (Compagno, 1984) |
NF | NF | NF | NF | Balart et al., 2000 (west coast of Baja California, Sur, Mexico) | NF | 2 (Compagno, 1984) |
NF | 2 (Compagno, 1984) |
1:1 (Balart et al., 2000) |
NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | sedentary on mud bottoms of the continental slope and, to a lesser extent,
on the continental shelf; upper range limited by temperature (Castro-Aguirre, 1981) demersally on upper continental slope and outermost shelf; likely adapted to live at low dissolved oxygen levels (Compagno, 1984) collected in waters of 10 degrees C (Balart et al., 2000) |
crustaceans (Pleuroncodes planipes), teleosts (Engraulidae),
polychaetes (Castro-Aguirre,
1981) |
NF | sedentary on mud bottoms of the continental slope and, to a lesser extent,
on the continental shelf; upper range limited by temperature (Castro-Aguirre, 1981) demersally on upper continental slope and outermost shelf; likely adapted to live at low dissolved oxygen levels (Compagno, 1984) collected in waters of 10 degrees C (Balart et al., 2000) |
crustaceans (Pleuroncodes planipes), teleosts (Engraulidae), polychaetes
(Castro-Aguirre, 1981) |
NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | Nemotoda (1 family, 1 species) (Castro-Aguirre, 1981) |
NF | ||||||||||||||
| Galeomorphii |
Carcharhiniformes |
Scyliorhinidae |
Parmaturus |
xaniurus |
(Gilbert, 1892) |
Catulus xaniurus (Gilbert,
1892) Pristiurus xaniurus (Gilbert, 1892) |
filetail catshark |
Cape Foulweather, Oregon to the Gulf of California (Ebert,
2003) |
NA | 91 to 1251 m (Ebert,
2003) |
males: WT = 3.163 x 10-7 TL3.427 (Southern California)
(Cross, 1988) females: WT = 9.377 x 10-7 TL3.242 (Southern California) (Cross, 1988) |
NF | 61 cm TL (Ebert,
2003) |
NG | 7 to 9 cm TL (Ebert,
2003) |
NG | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | oviparity |
NF | 37.5 to 47.5 cm TL (Cross,
1988) |
42.5 to 47.5 cm TL (Cross,
1988) |
NF | NF | NF | midwater, within 200 to 300 m of the bottom (Cross,
1988) |
Cross, 1988 (southern
California) |
continuous (Cross,
1988) |
23 (Cross, 1988) |
NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | outer continental shelf and upper slope; midwater; up to 490 m above the bottom in water over 1000 m deep (Ebert, 2003) | crustaceans (Pasiphaeidae, Sergestidae, Euphausiidae),
cephalopods (Cailliet,
1981) |
NF | NF | NF | NF | crustaceans (Galatheidae, Pasiphaeidae, Sergestidae), cephalopods (Teuthoidea), teleosts (Myctophidae) (Cross, 1988) | NF | NF | NF | outer continental shelf and upper slope; demersal, usually near bottom at a depth of 91 to 1,251 m; found over rocky and other hard sediment reefs or on muddy, soft bottoms (Ebert, 2003) | crustaceans (Galatheidae, Pasiphaeidae, Sergestidae),
cephalopods (Teuthoidea), teleosts (Myctophidae)
(Cross, 1988) |
forage on slow-swimming teleosts in oxygen minimum zone (Ebeling
et al., 1970) |
NF | NF | 3.6 (Cortes,1999) |
NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | ||||||||||||
| Galeomorphii |
Carcharhiniformes |
Triakidae |
Galeorhinus |
galeus |
(Linnaeus, 1758) |
Galeorhinus zyopterus (Jordan
and Gilbert, 1822a) |
soupfin shark |
British Columbia to the Pacific coast of central Baja California (Ebert,
2003) |
South Pacific, eastern North Atlantic, South Atlantic and southwestern Indian Oceans (Ebert, 2003) | nearshore to 471 m (Ebert,
2003) |
males: log WT = - 5.57297 + 3.26954 (log TL) (California)
(Ripley, 1946) females: log WT = - 7.48993 + 4.15605 TL (California) (Ripley, 1946) |
NF | males: 175 cm TL (Ripley,
1946) females: 195 cm TL (Ripley, 1946) |
California California |
35 cm TL (Ripley,
1946) |
California |
NG | NG | 182.9 |
NG | NG | 0.124 |
NG | NG | -1.29 |
NG | NG | NG | von Bertalanffy growth function |
vertebral centra: whole vertebrae, alizarin red staining |
NG | "double blind" test with two readers |
South Australia |
Moulton et al.,
1992 |
40 yrs. (Smith et
al., 1998) |
NG | aplacental viviparity |
NF | 135 cm TL (Ripley,
1946) NG |
150 cm TL (Ripley,
1946) 12 yrs. (Smith et al., 1998) |
87% were mature at 155 cm (Ripley,
1946) |
65% were mature at 160 cm (Ripley,
1946) |
NG | Tomales Bay, San Francisco Bay, but mainly south of Point Conception, and Ventura Flats east of Santa Barbara, California (Ripley, 1946) | Ripley, 1946
(Santa Catalina Island, California) |
annual (Ripley,
1946) |
NF | 16 to 54 (Ripley, 1946) |
6 to 52 (Ripley,
1946) |
NF | 28 embryos (170 cm TL) (Ripley,
1946) 35 embryos (175 cm TL) (Ripley, 1946) 33 embryos (180 cm TL) (Ripley, 1946) |
NF | 12 months (Ripley,
1946) |
0.113 |
NG | NG | Hoenig's equation |
40 yrs. |
Smith et al., 1998 |
NG | 1.077 ( 95% C.I. 1.037 to 1.128) |
NG | 17.7 (95% C.I. 13.3 to 21) |
NG | age-structured life history tables, Leslie matrices, and Monte Carlo simulation |
southwestern Pacific |
Cortes, 2002 |
NF | polychaetes, crustaceans [Amphipoda, Decapoda (shrimp)], teleosts (Cottidae) (Olsen, 1954) |
NF | NF | elasmobranchs (Carcharadon carcharias, Notorynchus cepedianus), marine mammals (Ebert, 2003) | NF | crustaceans (larger ones than consumed by juveniles), cephalopods, teleosts
(Olsen, 1954) |
NF | NF | elasmobranchs (Carcharadon carcharias, Notorynchus cepedianus), marine mammals (Ebert, 2003) | coastal, from close inshore including shallow bays to deeper offshore
waters (Ebert, 2003) |
teleosts [Clupeidae (Sardinops sagax), Pleuronectiformes, Batrachoididae (Porichthys notatus), Scorpaenidae, Scombridae, Embiotocidae], cephalopods (Teuthoidea) (Ripley, 1946) | NG | NG | elasmobranchs (Carcharadon carcharias, Notorynchus cepedianus), marine mammals (Ebert, 2003) | 4.2 (Cortes,1999) |
NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | segregate by sex and size; off Santa Barbara California females are predominately
caught in waters less than 30 fathoms deep, and males are caught in waters
deeper than 40 fathoms; the proportion of large mature males is highest
in northern California and decreases as progress south, while females show
the opposite trend, large mature females are most abundant in southern California
and as progress north there is a greater proportion of smaller immature females, in central California the sex ratio is about even; young and immature sharks are caught
off Ventura Flats, San Francisco Bay, Monterey, and Tomales Bay (Ripley,
1946) congregate in schools of one sex, and more apparent in the offshore phase of life (Olsen, 1954) |
one shark tagged off Venture was captured 26 months later off Vancouver Island, British Columbia, while another shark tagged in San Francisco Bay was recaptured 12 months later in the same location (Ebert, 2003) | highly migratory, moving north during the summer and south or deeper during the winter; move up to 34 miles/day (Ebert, 2003) | NF | Cestoda (1 familey, 2 spp.), Copepoda (3 families, 4 spp.), Hirudinoidea (1 family, 1 sp.), Monogenea (1 family, 1 sp.), Protozoa (1 family, 1 sp.) (Love and Moser, 1983) | NF | ||||||||||||
| Galeomorphii |
Carcharhiniformes |
Triakidae |
Mustelus |
henlei |
(Gill, 1863) |
Rhinotriacis henlei (Gill,
1863) |
brown smoothhound Henle's shark (Starks, 1917) mud shark, dogfish, sand shark, Henle's shark (Walford, 1935) |
Coos Bay, Oregon to Gulf of California (Eschmeyer
et al., 1983) |
Ecuador and Peru (Compagno,
1984) |
intertidal to 200 m (Ebert,
2003) |
NF | NF | 100 cm TL (Yudin
and Cailliet, 1990) |
Humboldt Bay, California |
19 to 23 cm TL (De
Wit, 1975) 20 to 30 cm TL (Yudin and Cailliet, 1990) |
central California central California |
86.1 (95% C.I. 19.5) |
97.6 (95% C.I. 68) |
97.7 (95% C.I. 64) |
0.285 (95% C.I. 0.196) |
0.225 (95% C.I. 0.059) |
0.224 (95% C.I. 0.05) |
-1.086 (95% C.I. 0.925) |
-1.375 (95% C.I. 0.688) |
-1.296 (95% C.I. 0.49) |
NG | NG | NG | von Bertalanffy growth function |
vertebral centra: sectioned, x-radiography |
edge analysis |
between reader comparison |
Santa Barbara to Humboldt Bay |
Yudin and Cailliet,
1990 |
13 yrs. (Yudin and
Cailliet, 1990) |
vertebral sectioning: annuli count |
placental viviparity |
females larger than males (Yudin,
1987) |
52 to 660 cm TL; 3 yrs. (Yudin
and Cailliet, 1990) NG NG |
51 to 63 cm TL; 2 to 3 yrs. (Yudin
and Cailliet, 1990) 76 cm TL (de Wit, 1975) 67 cm TL (Talent, 1985) |
NF | NF | NF | Tomales Bay, California (Bane
and Bane, 1971) San Francisco Bay, California (De Wit, 1975) San Francisco Bay and Humboldt Bay, California (Yudin, 1987) |
Bane and Bane, 1971
(San Francisco, California) De Wit, 1975 (San Francisco Bay, California) Yudin, 1987 (between Santa Cruz and San Francisco, California) |
NF | NF | NF | 1 to 8 (Talent,
1985) 1 to 10 (Yudin, 1987) |
NF | 6 embryos (64.6 cm TL) (Yudin,
1987) 10 embryos (86 cm TL) (Yudin, 1987) |
NF | ca. 1 year (Yudin,
1987) |
0.295 |
NF | NF | Hoenig's equation |
15 yrs. |
Smith et al., 1998 | 0.478 |
1.163 (95% C.I. 1.021-1.427) |
NG | 4.7 yrs. (95% C.I. 3.0-6.4 ) |
NG | age-structured life history tables, Leslie matrices, and Monte Carlo simulation |
northeast Pacific |
Cortes, 2002 | NF | crustaceans [Grapsidae (Hemigrapsus oregonensis),
Cancridae (Cancer spp.)] (Talent,
1982) |
bottom feeder, may disturb mud to capture food (Russo,
1975) pursue and capture prey over mudflats (Talent, 1982) |
NF | elasmobranchs (Notorynchus cepedianus) (Ebert,
2002) |
NF | crustaceans [Crangonidae (Crangon spp.), Cancridae (Cancer spp.), Grapsidae (Hemigrapsus oregonensis), Albuneidae (Blepharipoda occidentalis), Isopoda, Callianassidae, Stomatopoda), cephalopods [Loliginidae (Loligo opalescens)], echiuran worms [Urechidae (Urechis caupo)], teleosts [Engraulidae (Engraulis mordax), Gobiidae (Gillichthys mirabilis), Cottidae (Leptocottus armatus), Bothidae, Embiotocidae), polychaetes, tunicates, bivalves, teleost eggs (Herald and Ripley, 1951; de Wit, 1975; Talent, 1982; Russo, 1975; Haeseker and Czech, 1993; Ebert, 2003) | may disturb mud to capture food (Russo,
1975) pursue and capture prey over mudflats (Talent, 1982) |
NF | elasmobranchs (Notorhynchus cepedianus) (Ebert, 1989) |
common in enclosed, shallow, muddy bays (Compagno,
1984) |
crustaceans [Crangonidae (Crangon spp.), Cancridae (Cancer spp.), Grapsidae (Hemigrapsus oregonensis), Albuneidae (Blepharipoda occidentalis), Isopoda, Callianassidae, Stomatopoda], cephalopods [Loliginidae (Loligo opalescens)], echiuran worms [Urechidae (Urechis caupo)], teleosts [Engraulidae (Engraulis mordax), Gobiidae (Gillichthys mirabilis), Cottidae (Leptocottus armatus), Bothidae, Embiotocidae], polychaetes, tunicates, bivalves, teleost eggs (Herald and Ripley, 1951; de Wit, 1975; Talent, 1982; Russo, 1975; Haeseker and Czech, 1993; Ebert, 2003) | bottom feeder, may disturb mud to capture food (Russo,
1975) pursue and capture prey over mudflats (Talent, 1982) very agile, quick swimmers; often stim directly at and then past a crab, swiftly turning 180 degrees, grasp the crab from behind, and quickly crush and ingest it; they may also swim at the crab head-on, grabbing a claw and vigorously shaking it side-to-side to break it off, once disabled the carapace is crushed, usually from the side or behind, with the entire crab being ingested; when foraging swim close to the bottom and in schools (Ebert, 2003) |
NF | elasmobranchs (Notorhynchus cepedianus) (Ebert, 1989) |
3.6 (Cortes,1999) |
NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | schools with Triakis semifasciata (Smith,
2001) |
forms schools which are often sexually segregated (Love,
1996) |
capable of moving up to 160 km in 3 months (Compagno,
1984) |
inhabits inshore estuarine waters during spring and moves offshore during
winter months (Compagno,
1984) moves offshore in November, back inshore in spring (Yudin, 1987) move into estuaries in spring/summer before pupping then leave in fall/winter (Fleming, 1999) |
NF | Cestoda (3 families, 8 spp.), Copepoda (1 family, 2 spp.), Hirudinoidea (1 family, 1 sp.), Monogenea (1 family, 2 spp.), Nematoda (2 families, 3 spp.), Protozoa (1 family, 1 sp.) (Love and Moser, 1983; Beveridge & Sakanari, 1987; Nasin et al., 1997) | NF | ||||||||||||
| Galeomorphii |
Carcharhiniformes |
Triakidae |
Mustelus |
californicus |
Gill, 1864 |
NA | gray smoothhound smoothhound (Starks, 1917) mud shark, dogfish, sand shark, gray shark (Walford, 1935) |
Cape Mendocino, California to Mazatlan, Mexico (Eschmeyer
et al., 1983) |
NA | inshore to 67 m (Sandell,
1973) |
males: log WT = 5.20 - 10 + 2.88
log TL (TL = mm) (Anaheim Bay, California) (Sandell,
1973) females: log WT = 4.02 - 10 + 3.19 log TL (TL = mm) (Anaheim Bay, California) (Sandell, 1973) |
NF | 160 cm TL (Eschmeyer
et al., 1983) |
NG | 20 to 30 cm TL (Yudin
and Cailliet, 1990) |
central California |
101.8 (95% C.I. 18.5) |
142.4 (95% C.I. 16.5) |
154.4 (95% C.I. 25.4) |
0.35 (95% C.I. 0.177) |
0.218 (95% C.I. 0.063) |
0.168 (95% C.I. 0.058) |
-1.002 (95% C.I. 0.42) |
-1.032 (95% C.I. 0.296) |
-1.271 (95% C.I. 0.339) |
NG | NG | NG | von Bertalanffy growth function |
vertebral centra: sectioned, x-radiography |
edge analysis |
between reader comparison |
central California |
Yudin and Cailliet,
1990 |
9 yrs. (Yudin and
Cailliet, 1990) |
vertebral sectioning: annuli count |
placental viviparity |
females larger than males (Yudin,
1987) |
57 to 65 cm TL; 1 to 2 yrs. (Yudin
and Cailliet, 1990) NG |
70 cm TL; 2 to 3 yrs. (Yudin
and Cailliet, 1990) 87.5 cm TL (Talent, 1985) |
NF | NF | Anaheim Bay, California (Sandell,
1973) |
Anaheim Bay, California (Sandell,
1973) |
Yudin,
1987 (Elkhorn Slough, California) Sandell, 1973 (Anaheim Bay, California) |
NF | NF | NF | 3 to 16 (Talent,
1985) 3 to 15 (Yudin, 1987) |
NF | 10 embryos (117 cm TL) (Talent,
1973) 3 embryos (74.2 cm TL) (Yudin, 1987) 7 embryos (107.6 cm TL) (Yudin, 1987) 15 embryos (110.5 cm TL) (Yudin, 1987) |
NF | 10 month gestation (Sandell,
1973) ca. 1 year (Yudin, 1987) |
0.368 |
NF | NF | Hoenig's equation |
12 yrs. |
Smith et al., 1998 | 0.124 |
1.132 (95% C.I. 0.996-1.364 ) |
NG | 4.6 yrs. (95% C.I. 2.9-6.1) |
NG | age-structured life history tables, Leslie matrices, and Monte Carlo simulation |
northeast Pacific |
Cortes, 2002 | NF | crustaceans [Decapoda (Hemigrapsus oregonensis, Cancer spp.)], bivalves, teleosts, polychaetes, echiuran worms (Sandell, 1973; Talent, 1982) | may disturb mud or suck organisms to capture food; Pursue and capture over mudflats (Talent, 1982) | no diel pattern (Sandell,
1973) continuous, or intermittent feeding (San Filippo, 1995) |
NF | NF | crustaceans [Grapsidae (Hemigrapsus oregonensis), Cancridae (Cancer spp.), Hippidae (Emerita analoga), Callianassidae), echiuran worms [Urechidae (Urechis caupo)], cephalopods [Loliginidae (Loligo opalescens)], small teleosts, bivalves (Sandell, 1973; Talent, 1982; San Filippo, 1995) | may disturb mud or suck organisms to capture food, purse and capture over mudflats (Talent, 1982) | NF | NF | bottom dwelling in shallow muddy bays (Compagno,
1984) |
crustaceans [ Grapsidae (Hemigrapsus oregonensis), Cancridae (Cancer spp.), Hippidae (Emerita analoga), Callianassidae), echiuran worms [Urechidae (Urechis caupo)], cephalopods [Loliginidae (Loligo opalescens)], small teleosts, bivalves (Sandell, 1973; Talent, 1982; San Filippo, 1995) | may disturb mud or suck organisms to capture food; pursuit and capture
over mudflats (Talent,
1982) |
NF | NF | 3.5 (Cortes,1999) |
NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | schools with Triakis semifasciata (Limbaugh,
1955) |
NF | NF | high biomass in estuary in February, less abundant in May and November,
absent in August (Horn, 1980) reported to migrate from southern to central California in the summer (Compagno, 1984) |
NF | Cestoda (3 families, 4 spp.), Copepoda (2 families, 2 spp.), Digenea (1 family, 1 sp.), Nematoda (1 family, 1 sp.), Protozoa (1 family, 1 sp.), Monogenea (1 family, 1 sp.) (Love and Moser, 1983; Bullard and Overstreet, 2000) | NF | ||||||||||||
| Galeomorphii |
Carcharhiniformes |
Triakidae |
Mustelus |
lunulatus |
Jordan and Gilbert,
1883b |
NA | sicklefin smoothhound dog shark, smoothhound (Gates and Frey, 1974) |
San Diego, California to Peru (Eschmeyer
et al., 1983) |
NA | NF | NF | NF | males: 110 cm TL (Eschmeyer
et al., 1983) females: 170 cm TL (Eschmeyer et al., 1983) |
NG | 32 to 35 cm TL (Compagno,
1984) |
NG | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | viviparity |
NF | NF | NF | 70 to 83 cm TL (Ebert,
2003) |
97 cm TL (Ebert,
2003) |
NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | shallow (Miller
and Lea, 1972) inshore (Eschmeyer et al., 1983) |
teleosts [Scorpaenidae (Scorpaena sp.), Congridae (Taeniconger canabis), Batrachoididae (Portichthys notatus)], crustaceans (Calappidae (Mursia glaudicaudii), Albuneidae (Blepharipoda occidentalis)] (Galvan-Magana et al., 1989) | NF | NF | NF | 3.9 (Cortes,1999) |
NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | common around islands off Baja California Sur from September to May, absent June to August (Galvan-Magana et. al., 1989) | NF | Copepoda (1 family, 1 sp.), Digenea (1 family, 1 sp.), Cestoda (1 family, 1 sp.) (Love and Moser, 1983; Nasin et al., 1997) | NF |
| Galeomorphii |
Carcharhiniformes |
Triakidae |
Triakis |
semifasciata |
Girard, 1855 |
Triakis californica (Gray,
1851) Mustelus felis (Ayres, 1854a) Triakis semifasciatum (Girard, 1855) |
leopard shark catshark (Walford, 1935) |
Oregon to Mazatlan, Mexico (Miller
and Lea, 1972) |
NA | intertidal to 91 m (Eschmeyer
et al., 1983) |
males: Log10 WT(lbs) = 1.9806 Log10
TL - 5.01 (Elkhorn Slough, CA) (Ackerman,
1971) females: Log10 WT(lbs) = 3.1044 Log10 TL - 5.24 (Elkhorn Slough, CA) (Ackerman, 1971) |
NF | 198.1 cm TL (Miller
and Lea, 1972) possibly up to 213 cm TL (Feder et al., 1974) |
NG | ca. 17 to 20 cm TL (Ackerman,
1971) 20 to 25 cm TL (Smith, 2001) |
Elkhorn Slough, California NG |
149.9 |
160.2 |
153.6 (S.E. 10.25) |
0.089 |
0.073 |
0.082 (S.E. 0.014) |
-2.03 |
-2.74 |
-2.31 |
NG | NG | NG | von Bertalanffy growth function |
vertebral centra: thin sectioning, silver nitrate stain |
tetracycline mark-recapture, edge analysis |
between reader comparison |
central California |
Kusher et al., 1992 |
females: ca. 13 to 16 yrs. (Ackerman,
1971) both: 24 yrs., but likely up to 30 yrs. (Kusher et al., 1992) females: 26 yrs. (Smith, 2001) |
length frequency vertebral sectioning: annuli count vertebral sectioning: annuli count |
aplacental viviparity |
females larger than males (Ebert,
2003) |
probably >120 cm TL (Ackerman,
1971) 100 cm TL ; 7 yrs. (Kusher et al., 1992) 70 to 120 cm TL (Ebert, 2003) NG |
120 cm TL (Ackerman,
1971) 105 cm TL; 10 yrs. (Kusher et al., 1992) 110 to 130 cm TL (Ebert, 2003) 104 cm TL (Talent, 1985) |
NF | NF | NF | San Francisco Bay, Tomales Bay, and Bodega Bay, California (Bane
and Bane, 1971) Elkhorn Slough, California (Ackerman, 1971; Talent, 1985) Catalina Harbor, California (Smith, 2001) San Diego, California (Eigenmann, 1891) |
Ackerman, 1971
(Elkhorn Slough, California) Talent, 1985 (Elkhorn Slough, California) Eigenmann, 1891 (San Diego Bay, California) |
annual (Kusher et
al., 1992) |
NF | NF | 7 to 36 (Ackerman,
1971) 6 to 24 (Talent, 1985) 12 (Smith et al., 1998) |
1:1 (Ackerman,
1971) |
ca.15 embryos (123 to 125.9 cm TL) (Ackerman,
1971) ca. 16 embryos(126 to 128.9 cm TL) (Ackerman, 1971) ca. 19 embryos(129 to 134.9 cm TL) (Ackerman, 1971) ca. 22 embryos(135 to 143 cm TL) (Ackerman, 1971) ca. 30 embryos(144 to 146.9 cm TL) (Ackerman, 1971) ca. 32 embryos(147 to 149.9 cm TL) (Ackerman, 1971) 6 embryos (121 cm TL) (de Wit, 1975) |
Pt = 22.64 - (7592)(0.4208)w(t) (Pt = # embryos; w(t) = maternal weight at age t) (Smith and Abramson, 1990) | ca. 12 month gestation (Talent,
1985) |
0.28 (first yr.), 0.14 (after first yr.) 0.15 |
0.038 to 0.163 (avg. 0.084) NG |
NG NG |
Hoenig's equation Hoenig's equation |
NG 30 yrs. |
Smith and Abramson,
1990 Au and Smith, 1997 |
0.067 0.071 NG |
1.07 NG 1.016 (95% C.I. 0.984 to 1.052) |
4.467 NG NG |
22.35 yrs. NG 18.5 yrs. (95% C.I. 16 to 20.6) |
dominated by first five year classes with young of the year comprising 20% of
the population and the next four year classes comprising about another 45%
NG NG |
life history table NG age-structured life history tables, Leslie matrices, and Monte Carlo simulation |
central California NG Northeast Pacific |
Cailliet, 1992 Au and Smith, 1997 Cortes, 2002 |
bays (Limbaugh,
1963) shallow, inshore areas such as tidal creeks (Barry and Cailliet, 1983) sandy or muddy flats, cobble bottoms, rocky reef, and kelp beds (Compagno, 1984) eel grass (Zostera spp.) beds (Ebert, 2003) |
crustaceans [Grapsidae (Hemigrapsus oregonensis),
Cancridae (Cancer spp.)], echiurid worms [Urechidae
(Urechis caupo)], polychaetes [Nereididae (Nereis
spp.)], teleosts [Cottidae (Leptocottus armatus),
Atherinidae (Atherinops affinis), Engraulidae (Engraulis mordax),
Embiotocidae (Cymatogaster aggregata)], teleost eggs
(Atherinid eggs) (Ackerman,
1971; Talent,
1976; Barry et
al., 1996; Kao, 2000;
Ebert, 2003)
|
may disturb mud to capture food (Russo,
1975; Ebert, 2003) may use suction to capture prey (Talent, 1976) |
primarily diurnal (Kao,
2000) |
elasmobranchs (Notorynchus cepedianus, Carcharadon carcharias) (Ebert, 1986; Smith, 2001) | NF | crustaceans [Grapsidae (Hemigrapsus oregonensis, Pachygrapsus crassipes), Cancridae (Cancer spp.)], , echiurid worms [Urechidae (Urechis caupo)], bivalves [Mactridae (Tresus nuttalli siphons)], polychaetes [Nereididae (Nereis spp.)], teleosts [Cottidae (Leptocottus armatus), Atherinidae (Atherinops affinis), Engraulidae (Engraulis mordax), Embiotocidae (Cymatogaster aggregata)], teleost eggs (Atherinid eggs) (Ackerman, 1971; Talent, 1976; Barry et al., 1996; Kao, 2000) | may disturb mud to capture food (Russo,
1975) may use suction to capture prey (Talent, 1976) |
primarily diurnal (Kao,
2000) |
elasmobranchs (Notorynchus cepedianus, Carcharadon carcharias) (Ebert, 1986; Smith, 2001) | found in sand-bottom kelp holdfast, midkelp, rocky-bottom kelp-bed habitat,
and shallow bays and coves, often close over cobble bottom (Limbaugh,
1955) flat areas of sand or cobble near rocky reefs (Limbaugh, 1963) sandy or muddy flats, cobble bottoms, rocky reef, and kelp beds (Eschmeyer et al., 1983; Compagno, 1984) kelp bed and adjacent kelpless cobble area (Larson and DeMartini, 1984) bays and estuaries (Ebert, 2003) |
echiurian worms [Urechidae (Urechis caupo)], teleosts [Cottidae, Atherinidae, Engraulidae (Engraulis mordax,) Embiotocidae, Sciaenidae, Scorpaenidae, Bothidae, Pleuronectidae, Batrachoididae), bivalves [Mactridae (Tresus nuttalli siphons)], crustaceans [Grapsidae (Hemigrapsus oregonensis, Pachygrapsus crassipes) Cancridae (Cancer spp.), Crangonidae (Crago sp.), Upogebiidae (Upogebia sp.), Callianassidae (Callianassa sp.)], fish eggs [Clupeidae (Clupea pallasii eggs), Atherinidae (Atherinid eggs)], polychaetes, elasmobranchs [Myliobatidae (Myliobatis californica), Squalidae (Squalus acanthias), Triakidae (Mustelus spp.)] (Ackerman, 1971; Russo, 1975; de Wit, 1975; Talent, 1976; Barry et al., 1996; Kao, 2000; Ebert, 2003) | may disturb mud to capture food (Russo,
1975; Ebert, 2003) may use suction to capture prey (Talent, 1976) |
primarily nocturnal (Kao,
2000) |
elasmobranchs (Notorynchus cepedianus, Carcharadon carcharias) (Ebert, 1986; Smith, 2001) | 3.7 (Cortes,1999) |
NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | forms schools with Mustelus henlei and M. californicus (Limbaugh, 1955) observed hunting anchovies with Squalus acanthias (Compagno, 1984) forms schools with Mustelus spp., Squalus acanthias, Notorhynchus cepedianus, and Myliobatis californica (Ebert, 2003) |
gregarious, forms large schools (Feder
et al., 1974) segregate by size and sex (Ebert, 2003) |
in San Francisco Bay, California, the population is mainly resident but
ca. 10% move out of the bay in fall and winter; exhibit limited long distance
movements (Smith and
Abramson, 1990) exhibit an overall movement rate of 8.1+0.5 m/min; move in and out with the tides to feed on mudflats of Tomales Bay, California (Ackerman et al., 2000) one individual tagged in San Francisco Bay was recaught in Santa Monica Bay 10 yrs. later (Smith, 2001) |
nomadic; remain in an area for several days and disappear; certain coves
and bays more likely to be visited than others by visiting schools (Limbaugh,
1963) sharks <100 cm TL more common in summer and fall, >100 cm TL sharks caught all year but most abundant in winter and spring in Elkhorn Slough, California (Talent, 1985) juveniles and reproductive adults were most abundant in the spring and summer in Elkhorn Slough, California (Yoklavich et al., 1991) move out of bays and estuaries in winter; temperature and salinity important factors in determining abundance and distribution in bays in Tomales Bay, California (Hopkins, 1993) |
NF | Cestoda (4 families, 10 spp.), Copepoda (4 families, 7 spp.), Hirudinoidea (1 family, 1 sp.), Isopoda (1 family, 1 sp.), Monogenea (1 family, 1 sp.), Nematoda (1 family, 1 sp.), Protozoa (1 family, 1 sp.) (Love and Moser, 1983; Ruhnke, 1994; Ruhnke, 1996) | NF | ||||||||||||
| Galeomorphii |
Carcharhiniformes |
Carcharhinidae |
Carcharhinus |
albimarginatus |
(Rüppell,
1837) |
NF | silver tip shark |
southern Baja California (Compagno,
1984) |
patchy circumglobal distribution (Compagno,
1984) |
surface to 800 m (Compagno,
1984) |
NF | NF | 300 cm (Compagno,
1984) |
NG | 63 to 68 cm (Compagno,
1984) |
NG | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | NF | placental viviparity |
NF | 160 to 180 cm TL (Compagno,
1984) |
160 to 199 cm TL (Compagno,
1984) |
NF | NF | NF | NF | Compagno, 1984 |
NF | NF | NF | NF | NF | 1 to 11 per litter, often 5 or 6 ( | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||