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Notes on Sampling Amphipods and Euphausiids in the North Pacific Ocean
Author(s) -
Allen George H.
Publication year - 1972
Publication title -
transactions of the american fisheries society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.696
H-Index - 86
eISSN - 1548-8659
pISSN - 0002-8487
DOI - 10.1577/1548-8659(1972)101<577:nosaae>2.0.co;2
Subject(s) - oceanography , sampling (signal processing) , fishery , pacific ocean , environmental science , biology , geology , filter (signal processing) , computer science , computer vision
Amphipods and euphansiids caught in Clarke‐Bumpus, 1‐meter, and 1/2‐meter nets fished at the same stations within the North Pacific Ocean and the Gulf of Alaska during the spring of 1956, were compared by simple correlation analysis. Variable correlation in the catch of amphipods by day or night was probably due to patchiness and diurnal migration. A good correlation in catch of euphausiids in the three nets was found for stations sampled at night with coarse mesh and in areas devoid of phytoplankton blooms. There was some evidence that a low catch of euphausiids during the day was a function of availability rather than net avoidance.