Morbidity in California giant salamander ( Eschscholtz, 1833) caused by sp. Poche, 1926 (Trematoda: Heterophyiidae).

In the fall of 2021, California Department of Fish and Wildlife reported larval and adult California giant salamanders ( Eschscholtz, 1833) with skin lesions at multiple creeks in Santa Clara and Santa Cruz Counties, California, USA. Field signs in both stages included rough, lumpy textured skin, and larvae with tails that were disproportionately long, flat, wavy, and flaccid. Presence of large-bodied larvae suggested delayed metamorphosis, with some larvae having cloudy eyes and suspected blindness.

Considerations for colorblind individuals on selecting colorimetric or fluorescent dye assay outcomes.

A disadvantage of colorimetric detection in nucleic acid amplification assays is the possibility that a colorblind individual may interpret colors differently than observers with full-color vision. Using an isothermal amplification assay, the ability of colorblind individuals to distinguish between positive and negative results for four dyes was tested. Five individuals with self-reported colorblindness and four with full-color vision reported their observations of the color of the solution.

Acute mortality in California tiger salamander () and Santa Cruz long-toed salamander () caused by (Class: Trematoda).

In early September 2019, a morbidity and mortality event affecting California tiger salamanders () and Santa Cruz long-toed salamanders () in late stages of metamorphosis was reported at a National Wildlife Refuge in Santa Cruz County, California, U.S.A.

LOOP-MEDIATED ISOTHERMAL AMPLIFICATION (LAMP) ASSAY FOR DETECTION OF ASIAN FISH TAPEWORM, SCHYZOCOTYLE ACHEILOGNATHI (YAMAGUTI, 1934) [SYN. BOTHRIOCEPHALUS ACHEILOGNATHI].

The Asian fish tapeworm (Schyzocotyle acheilognathi syn. Bothriocephalus acheilognathi) (AFT) is an invasive parasite that can infect many species of fish, although most hosts are primarily members of Cyprinidae. Pathogenicity has most often been reported in aquaculture settings in fry and fingerling stages of carp (Cyprinus spp.

GAPEWORM (SYNGAMUS SPP.) PREVALENCE IN WISCONSIN GREATER PRAIRIE CHICKENS (TYMPANUCHUS CUPIDO PINNATUS).

Under Wisconsin state law, the greater prairie chicken (GRPC; Tympanuchus cupido pinnatus) has been listed as a threatened species since 1976. In 2014-15, we conducted a pilot study to determine the prevalence and intensity of gapeworms (Syngamus spp.) in female Wisconsin GRPCs collected from 2 monitored populations.