ItyArticleNematode Parasites of Rockfish (Sebastes spp.) and Cod (Gadus spp.) from Waters near Kodiak Island Alaska, USAMehmet Cemal Oguz 1 , Andrea McRae Campbell two , Samuel P. Bennett two and Mark C. Belk 2, Vocational School of Overall health Services, Mardin Artuklu University, Mardin 47200, Turkey; [email protected] Division of Biology, Brigham Young University, Provo, UT 84602, USA; [email protected] (A.M.C.); [email protected] (S.P.B.) Correspondence: [email protected]; Tel.: 1801422Citation: Oguz, M.C.; Campbell, A.M.; Bennett, S.P.; Belk, M.C. Nematode Parasites of Rockfish (Sebastes spp.) and Cod (Gadus spp.) from Waters near Kodiak Island Alaska, USA. Diversity 2021, 13, 436. https://doi.org/10.3390/d13090436 Academic Editor: Bert W. HoeksemaAbstract: Distribution and abundance of typical parasitic nematodes in marine fishes just isn’t properly documented in lots of geographic regions. Understanding the influence of largescale environmental changes on infection rates of fish by nematodes requires quantitative assessments of parasite abundance for many host species. We collected samples of two species of cod and eight species of rockfish (total of 232 specimens) from waters near Kodiak Island, Alaska, USA in the course of Spring and Summer season of 2015, and dissected and recorded all internal nematode parasites. We quantified the prevalence and intensity of nematode parasites in the ten host species, and tested for differences in prevalence amongst host species. We identified 3 species of nematode: Anisakis simplex, sensu lato (Van Thiel), Pseudoterranova decipiens, sensu lato (Krabbe), and Hysterothylacium sp. (Ward and Magath). Eightytwo % on the examined fish have been infected with at the very least 1 parasitic nematode. The general prevalence of P. decipiens, A. simplex, and Hysterothylacium sp. was 56 , 62 , and 2 , respectively. Anisakis simplex and P. decipiens were abundant and present in all ten species of host fish examined, whereas Hysterothylacium sp. was rare and identified in only 5 with the host fish species. Prevalence and imply intensity of P. decipiens and a. simplex varied across the ten host species, and also the number of parasites varied substantially amongst person hosts inside host species. The imply intensity of P. terranova plus a. simplex in our study was substantially greater than the imply intensity for these same species from several other areas inside a recent metaanalysis. This study supplies a baseline of nematode parasite abundance in longlived fish in waters near Kodiak Island, AK, and fills an important gap in our quantitative understanding of patterns of occurrence and abundance of those frequent and widespread parasites of marine fish. Search phrases: Anisakidae; Chromadorea; Southwest Alaska; Gadus; SebastesReceived: 30 April 2021 Accepted: 8 September 2021 Published: 10 SeptemberPublisher’s Note: MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations.1. Introduction Documenting environmental transform, and consequent modify inside the distribution of organisms, has turn into increasingly vital for understanding the ecological and evolutionary responses of organisms more than time [1]. A number of examples of adjust in distribution, abundance, and diversity of species have been observed because of superior baseline data offered from preceding research [1]. However, detecting such changes with no baseline information is difficult, and quantifying the effects of change is not possible CRTAM/CD355 Protein web without previously colle.