TEMPORAL CHANGES IN PELAGIC BIOMASS OF PLEURONCODES PLANIPES STIMPSON (DECAPODA ANOMURA, GALATHEIDAE) OFF BAJA CALIFORNIA, MEXICO BY MAURICE BLACKBURN Institute of Marine Resources, University of California, La Jolla, California, U.S.A. Adults of the galatheid Pleuroncodes planipeJ Stimpson are very abundant off the west coast of Baja California, Mexico (Boyd, unpublished; Longhurst, 1967; Blackburn, 1969). They occur in the water column and on the bottom; the largest are exclusively benthic (Boyd, 1967). Vernacular names include "red crab" and "langostilla". Blackburn & Thorne (1974) reported preliminary studies of pelagic nekton of a small area off Baja California from April 11 to April 30, 1973. Pleuroncodes planipe.r comprised 90% or more by weight of each of their samples, which were obtained with a micronekton net. The remainders were fish, mostly anchovy (Engrauli.r mordax Girard). A cooperating Soviet research vessel obtained very similar results with a commercial-sized pelagic trawl. It was concluded that the pelagic nekton was almost entirely Pleuroncode.r. Its biomass in several net hauls was compared with simultaneous acoustic measurements of nekton in the water column. A significant linear regression was found, and was then used to estimate biomass from acoustic data alone. Temporal changes in the biomass were discussed
Crustaceana – Brill
Published: Jan 1, 1977
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera