Table1

					Supplemental Table 1
Studies that report organohalogen contaminants in the brains of pinnipeds and cetaceans.

Brain Region    Species                             Analytes                     Reference

"brain"         gray seal, harbor porpoise          DDTs, dieldrin, PCBs         (Holden, 1978)

cerebrum,
cerebellum,     striped dolphin                     DDTs, PCBs, pesticides       (Tanabe et al., 1981)
medulla

"brain"         sperm whale                         DDTs, PCBs                   (Aguilar, 1983)

"brain"         harbor seal                         PCBs                         (Bernhoft and Skaare, 1994)

                                                    DDTs, PCDD/PCDFs,
"brain"         harp seal                                                        (Oehme et al., 1995)
                                                    PCBs

cerebrum,
cerebellum,     common dolphin                      PCBs, HCHs                   (Mossner et al., 1994)
hypothalamus

"brain"         neonatal gray seal                  DDTs, PCBs                   (Jenssen et al., 1996)

"brain"         striped dolphin                     DDTs, PCBs, HCB              (Marsili and Focardi, 1997)

"brain"         neonate beluga whale                DDTs, PCBs, pesticides       (Gauthier et al., 1998)

"brain"         beluga whale                        DDTs, PCBs, pesticides       (Metcalfe et al., 1999)

                                                    DDTs, MeSO2-DDE,
"brain"         harbour porpoise                                                 (Karlson et al., 2000)
                                                    PCBs, MeSO2-PCBs

"brain"         harbour porpoise                    PCNs, non-ortho PCBs         (Ishaq et al., 2000)

                melon-headed whale, striped
cerebrum                                            PCBs, OH-PCBs                (Kunisue et al., 2007)
                dolphin, finless porpoise
Table 1
Stranding and life history information of seal and dolphin specimens in which analysis of organohalogen contaminants was performed


                                                                                                                                  Condition   Stranding       Length                     Body Wt. Brain      Brain
         Field ID                 Common Name                   Date/time of death                     Location                    Codea        Type    Sex    (cm)      Age Class         (kg)   Wt. (g)   Lesionb Body Condition   Cause of Death      Samples Analyzed

     CCSN04-186-Hg                    gray seal               Aug 25, 2004 at 20:52            Boston Beach, Truro, MA                    1    single   m      113        neonate          27.0    291.6      no      Emaciated         Diseasec               CSF
     CCSN04-191-Dd               common dolphin               Sept 6, 2004 at 12:25        Squaw Island, Hyannisport, MA                  1    single   f      207         adult           80.0     936.0     yes    Slightly thin     Parasitesd               CSF
     CCSN04-219-Dd               common dolphin               Nov 30, 2004 at 17:30          Herring River, Wellfleet, MA                 1     mass    f      169        subadult         56.0     875.8     no    Not emaciated       Disease                 CSF
     CCSN04-195-La          Atlantic white-sided dolphin      Sept 14, 2004 at 17:36       Herring River Gut, Wellfleet, MA               1    single   m      192        subadult         73.5    1460.3     no    Not emaciated       Disease                 CSF
     CCSN05-037-La          Atlantic white-sided dolphin      Feb 15, 2005 at 14:30         Chipman's Cove, Wellfleet, MA                 1     mass    f      206          adult         125.0    1292.2     no    Not emaciated         NSF           CSF, Cerebellum GM
     CCSN05-038-La          Atlantic white-sided dolphin        February 15, 2005         Chesequesset Neck, Wellfleet, MA                2     mass    f      208     lactating adult    125.0    1153.0     yes   Not emaciated     Neurologicale             CSF
     CCSN05-039-La          Atlantic white-sided dolphin        February 15, 2005         Chesequesset Neck, Wellfleet, MA                2     mass    f      211     pregnant adult     146.0    1329.7     no    Not emaciated         NSF           CSF, Cerebellum GM
     CCSN05-040-La          Atlantic white-sided dolphin        February 15, 2005         Chesequesset Neck, Wellfleet, MA                2     mass    f      204     pregnant adult     123.6    1305.3     no    Not emaciated         NSF           CSF, Cerebellum GM
     CCSN05-084-La          Atlantic white-sided dolphin      Mar 19, 2005 at 14:15                  Wellfleet, MA                        1    single   m      156        subadult         42.6    1057.8     no      Emaciated        Predationf              CSF
     CCSN05-231-La          Atlantic white-sided dolphin      Sept 26, 2005 at 13:30         Sandy Neck, Barnstable, MA                   1    single    f     137        neonate          30.0     839.0     no      Emaciated      Dependent calf g          CSF
     CCSN05-232-La          Atlantic white-sided dolphin       Oct 4, 2005 at 12:22          Nauset Beach, Eastham, MA                    1    single    f     185        subadult         77.5    1186.1     yes    Slightly thin      Parasites              CSF

a
 A condition code of 1 indicates that the animal was euthanized, while a condition code of 2 indicates that the animal was found dead but the specimen was in
fresh condition (i.e., less than 24 hours had passed since the time of death).
b
 Brain lesions were identified using magnetic resonance imaging. CCSN04-191-Dd = lesion in left globus pallidus; CCSN05-038-La = lesion in right occipital lobe; CCSN05-232-La = lesion in vermis of cerebellum.
c
    Disease = enteritis; peritonitis; pancreatitis; pneumonia; cardiomyocyte atrophy; carcinoma; bacterial, viral, or fungal infection.
d
    Parasites = primary cause of death caused by parasites: verminous gastritis, verminous encephalitis, etc.
e
    Neurological = encephalitis, meningitis, other lesions and behaviors not caused by the presence of parasites.
f
    Predation = animal died or was euthanized due to wounds suffered by canid, shark, or gull attacks.
g
 Dependent calf = emaciation/dehydration of a very young animal believed to be separated from or abandoned by the mother.
NSF = no significant findings.
CSF = cerebrospinal fluid.
Cerebellum GM = cerebellum gray matter

				
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