Gerald R. Hoff
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View article: Interspecific Differences in the Flow Regimes and Drag of North Pacific Skate Egg Cases
Interspecific Differences in the Flow Regimes and Drag of North Pacific Skate Egg Cases Open
Synopsis Skates are a diverse group of dorso-ventrally compressed cartilaginous fish found primarily in high-latitude seas. These slow-growing oviparous fish deposit their fertilized eggs into cases, which then rest on the seafloor. Develo…
View article: Understanding transboundary stocks’ availability by combining multiple fisheries-independent surveys and oceanographic conditions in spatiotemporal models
Understanding transboundary stocks’ availability by combining multiple fisheries-independent surveys and oceanographic conditions in spatiotemporal models Open
Shifts in the distribution of groundfish species as oceans warm can complicate management efforts if species distributions expand beyond the extent of existing scientific surveys, changing the proportion of groundfish available to any one …
View article: An identification key for Chondrichthyes egg cases of the Mediterranean and Black Sea
An identification key for Chondrichthyes egg cases of the Mediterranean and Black Sea Open
Chondrichthyan egg cases are important elements for species-specific identification and also provide a valuable aid in determining a species spatial distribution, as well as for defining spawning areas. Considering the absence of a general…
View article: Inventory of the eastern Bering Sea sponge fauna, geographic range extensions and description of Antho ridgwayi sp. nov.
Inventory of the eastern Bering Sea sponge fauna, geographic range extensions and description of Antho ridgwayi sp. nov. Open
A total of 493 sponges were collected with a bottom trawl during annual groundfish stock assessment surveys in the eastern Bering Sea in 2013, 2015, and 2016 to build an inventory of species in this largely unexplored region. We report her…
View article: Validation of deep-sea coral and sponge distribution models in the Aleutian Islands, Alaska
Validation of deep-sea coral and sponge distribution models in the Aleutian Islands, Alaska Open
Spatial management of vulnerable benthic ecosystem components such as deep-sea corals and sponges requires adequate maps of their distribution. These maps are often based on statistical models of survey data. The objective of this project …
View article: Results of the 2016 eastern Bering Sea upper continental slope survey of groundfishes and invertebrate resources.
Results of the 2016 eastern Bering Sea upper continental slope survey of groundfishes and invertebrate resources. Open
The results of the 2016 Alaska Fisheries Science Center's (AFSC) bottom trawl survey of the groundfish and invertebrate resources of the eastern Bering Sea upper continental slope (EBSS) are presented. The 2016 EBSS survey is the sixth sta…
View article: Changes in habitat utilization of slope-spawning flatfish across a bathymetric gradient
Changes in habitat utilization of slope-spawning flatfish across a bathymetric gradient Open
Understanding how fish distributions may change in response to environmental variability is important for effective management of fish populations, as predicted climate change will likely alter their habitat use and population dynamics. Th…
View article: Identification of multiple nursery habitats of skates in the eastern Bering Sea
Identification of multiple nursery habitats of skates in the eastern Bering Sea Open
The use of more than a single nursery habitat type is examined for oviparous elasmobranchs using data summarized from studies conducted on the Alaska skate Bathyraja parmifera and the Aleutian skate Bathyraja aleutica in the eastern Bering…