Abstract A keystone species is one whose influence is disproportionate to its abundance, the absence of which would change the dynamics of an ecological or human community. Despite its widespread use in the scientific literature, there is a limited understanding of how the keystone concept is defined or measured, or applied in practice, and especially ...
Natasha R. Serrao +5 more
wiley +1 more source
Composition and conservation status of rays sold in Baja California Sur, Mexico
Sharks, skates, and rays (elasmobranchs) are experiencing global population declines, leading to heightened concern regarding the impacts of target and bycatch fishing on their populations. Globally, market mislabeling of unsustainably harvested fish can
Isabella C. Ossiander +11 more
doaj +1 more source
Biodiversity as an index of regime shift in the eastern Bering Sea [PDF]
Data collected from an annual groundf ish survey of the eastern Bering Sea shelf from 1975 to 2002 were used to estimate biomass and biodiversity indexes for two fish guilds: f latfish and roundfish.
Hoff, Gerald R.
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Fishing Discards of Rays and Skates Rajidae in Galicia Waters
Julio Valeiras +6 more
openaire +3 more sources
Abstract Objective While some studies have shown that exercise reduces the incidence of gestational diabetes mellitus (GDM), there is limited evidence on whether aerobic or resistance exercise is more beneficial. This study aimed to examine the rate of GDM according to the type of exercise during early pregnancy.
Takaki Tanamoto +3 more
wiley +1 more source
Marine recreational fisheries statistics survey for northern and central California, quarterly report no. 12, April to June, 1982 [PDF]
Field intercept Marine Recreational Fisheries Statistics Survey (MRFSS) data for central and northern California, collected in April to June 1982, is presented in a data report format. Data in this quarterly report are subdivided into three categories:
Karpov, Konstantin A. +1 more
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Características histológicas del útero de Sympterygia acuta (Garman, 1877) y Sympterygia bonapartii (Müller & Henle, 1841) (Chondrichthyes; Rajidae) [PDF]
Los condrictios constituyen un clado sumamente conservado y vulnerable a la explotación, que ha cobrado una importancia creciente en los últimos años. Sin embargo, existe poca información sobre los aspectos morfológicos relacionados con la reproducción ...
Díaz Andrade, María Constanza +2 more
core +1 more source
Associations of Commercial Fisheries and Cold‐Water Corals and Sponges
Three metrics for determining whether the marine life that are landed by commercial fisheries are associated with cold‐water corals and sponges: (a) Adjacent; (b) General Proximity; and (c) Habitat. The relationship between these structure forming invertebrates (SFI) and fisheries is robust across analytical approaches.
Jennifer Coyle Selgrath +2 more
wiley +1 more source
Effectiveness of a Rigid Grate for Excluding Pacific Halibut, Hippoglossus stenolepis, From Groundfish Trawl Catches [PDF]
A rigid grate was installed in a groundfish trawl to test its effectiveness in excluding Pacific halibut, Hippoglossus stenolepis, from commercial flatfish catches in the Gulf of Alaska.
Gauvin, John R., Rose , Craig S.
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Chasing Fish: 130 Years of Innovation, Displacement and Depletion in Scottish Fisheries
ABSTRACT Rebuilding the depleted fisheries of the 21st century requires an understanding of past drivers of their decline. Despite Scotland's central role in the commercial exploitation of North Sea fisheries for over a century, associations between technological innovations, regulatory introductions and fishery landings have not previously been ...
Zoe F. J. Heard +2 more
wiley +1 more source

