Results 71 to 80 of about 2,895 (199)

Trophic Relationships of Aquatic Species Offer Valuable Insights Into Shallow Lake Ecosystem Recovery

open access: yesEcology and Evolution, Volume 15, Issue 11, November 2025.
Trophic relationships indicated a hysteretic food web response to restoration. Plankton was the primary food source for fish and invertebrates in BYD. Aquatic plants primarily contributed to the humus formation in BYD. ABSTRACT Shallow freshwater lakes are vital for ecological and climate regulation, but many are degrading. Although restoration efforts
Yajun Qiao   +9 more
wiley   +1 more source

Assessment of alternative strategies for sludge disposal into deep ocean basins off Southern California [PDF]

open access: yes, 1979
The general framework of engineering alternatives for regional ocean sludge disposal is well described in a report by Raksit, and will not be repeated here.
Brooks, Norman H.   +3 more
core  

Distribution and lipid composition of early life stages of the cranchiid squid Galiteuthis glacialis (Chun) in the Weddell Sea, Antarctica [PDF]

open access: yes, 1994
The relatively small numbers of pelagic cephalopods caught in the RMT-8 samples (0–300 m) in February/March 1983 in the Weddell Sea were dominated by early life stages of the cranchiid squid Galiteuthis glacialis. A total of 48 specimens were caught with
Hagen, Wilhelm, Piatkowski, Uwe
core   +1 more source

Species Trends in Sport Fisheries, Monterey Bay, Calif., 1959-86 [PDF]

open access: yes, 1995
Three surveys spanning 28 years were examined for changes in species caught by recreational fishermen from small boats (skiffs) and commercial passenger fishing vessels (CPFV's) in California's Monterey Bay region.
Mason, Janet E.
core  

Status of the spawning biomass of the Pacific sardine, 1983-84 [PDF]

open access: yes, 1984
State law provides for the initiation of a fishery for Pacific sardines, Sardinops sagax caeruleus, when the spawning biomass of sardines reaches 20,000 short tons.
Klingbeil, Richard A., Wolf, Patricia
core  

The status of the ocean shrimp resource and its management [PDF]

open access: yes, 1973
The fishery for ocean shrimp (Pandalus jordani) was began in the early 1950's after exploratory fishing by the Department of Fish and Game discovered five dense concentrations. The fishery has been fully regulated since its beginning and is currently
Dahlstrom, Walter A.
core  

Catchability of pelagic trawls for sampling deep-living nekton in the mid-North Atlantic [PDF]

open access: yes, 2010
Material collected in summer 2004 from the Mid-Atlantic Ridge between Iceland and the Azores with three pelagic trawls was used to estimate relative catchabilities of common fish, cephalopod, decapod, and jellyfish species. Catchability is defined as the
Barkley   +58 more
core   +3 more sources

Static characteristics of a midwater trawl net using canvas mouth opening devices.

open access: yesNIPPON SUISAN GAKKAISHI, 1988
Amidwater trawl net using canvas sheet outside the wings in place of the otter boards was designed, and the static characteristics of the model net were examined in a circulating water tank within flow speed ranging from 25 to 110cm/s. The width and height of the mouth opening and the total drag of the 1.3m model net were measured varying the canvas ...
Ko Matuda, Fuxiang Hu, Atsushi Koike
openaire   +2 more sources

Bulletin / [PDF]

open access: yes, 1966
v.
Chicago Natural History Museum.
core   +1 more source

Early life-history studies of nearshore rockfishes and lingcod off Central California, 1987-92 [PDF]

open access: yes, 1996
This study focused on the physical and biological processes that influence the distribution, abundance, growth, and survival of young-of-the-year (YOY) rockfishes and lingcod along the central California coast.
Gingras, Marty L.   +3 more
core  

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