Range Extensions and New Records from Alaska and British Columbia for Two Skates, Bathyraja Spinosissima and Bathyraja Microtrachys

Details

• Journal Title:
  Northwestern Naturalist
• Personal Author:
  Orr, James W ; Stevenson, Duane E ; Hanke, Gavin ; Spies, Ingrid B ; Boutillier, James A ; Hoff, Gerald R
• NOAA Program & Office:
  JISAO (Joint Institute for the Study of the Atmosphere and Ocean) ; NMFS (National Marine Fisheries Service) ; AFSC (Alaska Fisheries Science Center)
• Description:
  Recent deep-water surveys of the continental slope in the Bering Sea and the eastern North Pacific, conducted by the US National Marine Fisheries Service, Alaska Fisheries Science Center, and Fisheries and Oceans Canada, have broadened our understanding of the ichthyofauna in the region. Herein, we report significant new records of 2 species of skates based on morphological and molecular data. For Bathyraja spinosissima, the White Skate, we describe 2 specimens: a neonate male that constitutes a northern range extension for the species to Alaska in the Bering Sea; and an adult male representing a new record for the species in British Columbia. For B. microtrachys, the Fine-spined Skate, we describe 5 males taken in a single haul that represent the 1st record of the species in British Columbia. These specimens had been previously misidentified as B. violacea, the Okhotsk Skate, a species known only from the western Aleutian Islands and the western North Pacific.
• Keywords:
  Bathyraja Microtrachys Bathyraja Spinosissima Skates (Fishes)
• Source:
  Northwestern Naturalist, 100(1), 37-47, 11.
• DOI:
  https://doi.org/10.1898/NWN18-21
• Document Type:
  Journal Article
• Place as Subject:
  Canada ; Alaska
• Rights Information:
  CC BY
• Compliance:
  Submitted
• Main Document Checksum:
  urn:sha256:7b3c293cbc00e245d5d35a1198e4665dc4abc5ac684208f603dccca4087c9d82
• Download URL:
  https://repository.library.noaa.gov/view/noaa/21065/noaa_21065_DS1.pdf
• File Type:
  [PDF - 929.06 KB ]