Fishery Bulletin articles from October 2000

Fishery Bulletin archives from October 2000

Variation in life history parameters of Dover sole, Microstomus pacificus, off the coasts of Washington, Oregon, and northern California.(Statistical Data Included)
October 1, 2000... Abstract--Variation in the life history parameters of Dover sole (Microstomus pacificus) off the coasts of Washington, Oregon, and northern California was investigated by using research survey data. We compared growth, maturation, and...

Genetic structure of two commercial penaeids (Penaeus californiensis and P. stylirostris) from the Gulf of California, as revealed by allozyme variation.
October 1, 2000... Abstract--Two commercial shrimp species (Penaeus californiensis and P. stylirostris) were sampled along the Gulf of California and crude extracts were assayed electrophoretically to assess allozyme variation and population genetic structure....

Indices of larval king mackerel (Scomberomorus cavalla) abundance in the Gulf of Mexico for use in population assessments.(Statistical Data Included)
October 1, 2000... Abstract--The stock status of the Gulf of Mexico migratory group of king mackerel (Scomberomorus cavalla) is currently evaluated by using age-based sequential virtual population analysis (VPA). We examined king mackerel larval occurrence and...

Evasive behavior of spotted and spinner dolphins (Stenella attenuata and S. longirostris) during fishing for yellowfin tuna (Thunnus albacares) in the eastern Pacific Ocean.(Statistical Data Included)
October 1, 2000... Abstract--This study examines the question of whether the evasive behavior of northeastern offshore spotted dolphins (Stenella attenuata) during fishing for tuna (by the Mexican fleet) varies in geographic areas of the eastern Pacific Ocean...

Larval growth of the anchoveta Engraulis ringens during the winter spawning season off central Chile.(Statistical Data Included)
October 1, 2000... Abstract--Larval growth rates of the anchoveta Engraulis ringens were determined for two periods during the winter spawning season offTalcahuano, central Chile. Because winter is the season of minimum plankton production during the year, we...

Biology and ecology of threaded sculpin, Gymnocanthus pistilliger, in the eastern Bering Sea.(Statistical Data Included)
October 1, 2000... Abstract--The threaded sculpin (Gymnocanthus pistilliger) is distributed in the North Pacific from Norton Sound south to Southeast Alaska and west to Russia and Japan. It reaches its greatest abundance in the eastern Bering Sea in Bristol Bay...

Age, growth, mortality, and reproduction of red porgy, Pagrus pagrus, from the eastern Gulf of Mexico.
October 1, 2000... Abstract--The red porgy (Pagrus pagrus) is an important component of the Gulf of Mexico reef-fish fishery, yet little information is available on this species's life history. We sampled 877 red porgy (194-489 mm TL) from the eastern Gulf of...

Numbers and distribution of beluga whales, Delphinapterus leucas, in James Bay, eastern Hudson Bay, and Ungava Bay in Canada during the summer of 1993.(Statistical Data Included)
October 1, 2000... Abstract--Aerial surveys to estimate the numbers of beluga whales, Delphinapterus leucas, were flown in James Bay, eastern Hudson Bay, and Ungava Bay in Canada in the summer of 1993 on transects systematically spaced 5 or 10 nmi apart. In James...

Age and growth of cutlassfishes, Trichiurus spp., from the South China Sea.
October 1, 2000... Abstract--Age and growth of two species of cutlassfishes, Trichiurus spp. (Trichiuridae), from the South China Sea were examined. Between December 1996 and November 1997, 1495 specimens were collected from coastal waters near Hong Kong. Two...

Monitoring protocol for Sacramento River winter chinook salmon, Oncorhynchus tshawytscha: application of statistical power analysis to recovery of an endangered species(*).(Statistical Data Included)
October 1, 2000... Abstract--When monitoring endangered species, natural resource managers require a recovery benchmark and a statistical procedure to test whether the benchmark has been met. We applied statistical power analysis to devise such a procedure for...

Seasonal variation in larval fish assemblages in relation to oceanographic conditions in the Abrolhos Bank region off eastern Brazil.(Statistical Data Included)
October 1, 2000... Abstract--The Abrolhos Bank region off the eastern coast of Brazil, under the influence of the Brazil Current, constitutes a typical tropical coral reef ecosystem that is characterized by a high diversity of tropical fish. Results of three...

Variation in age compositions and growth rates of Acanthopagrus butcheri (Sparidae) among estuaries: some possible contributing factors.(Statistical Data Included)
October 1, 2000... Abstract--Age compositions and growth rates have been determined for populations of Acanthopagrus butcheri in four estuaries and a saline, coastal lake, all of which differ markedly in their morphological, physicochemical, and biotic...

Dispersal and growth of yearling Atlantic sturgeon, Acipenser oxyrinchus, released into Chesapeake Bay(*).(Statistical Data Included)
October 1, 2000... Abstract--Significant fisheries for Chesapeake Bay Atlantic sturgeon, Acipenser oxyrinchus, have been absent for nearly a century, and there has been no evidence of recovery in the intervening years. Endangerment of Atlantic sturgeon in the...

Growth rates of juvenile dusky sharks, Carcharhinus obscurus (Lesueur, 1818), from southwestern Australia estimated from tag-recapture data.(Statistical Data Included)
October 1, 2000... Abstract--Tagged neonate and small juvenile Carcharhinus obscurus were released between March 1994 and June 1996 in southwestern Australia. Length and time-at-liberty data from 304 usable recapture data were used to examine growth rates of...

Effects of year and region on the abundance and size of age-0 walleye pollock, Theragra chalcogramma, in the western Gulf of Alaska, 1985-1988(*).(Statistical Data Included)
October 1, 2000... Abstract--Effects of year and region on young-of-the-year (age-0) walleye pollock abundance and size were examined by using bottom and midwater trawl collections made during 1985-88. Samples were collected from shelf and coastal areas in three...

Use of the original von Bertalanffy growth model to describe the growth of barramundi, Lates calcarifer (Bloch).
October 1, 2000... Abstract--In the original von Bertalanffy growth equation, the rate of change in body mass of an individual is assumed to result from two opposing biological processes: anabolism and catabolism. Because this differential equation cannot be...

The relation between spawning area and biomass of Japanese pilchard, Sardinops melanostictus, along the Pacific coast of Japan.
October 1, 2000... Abstract-When stocks are depleted, direct assessments of population levels are not only difficult but may be highly inaccurate. The work reported here was motivated by the need to manage the collapse of the far eastern sardine (Sardinops...

Geographic patterns in growth of the giant Pacific sea scallop, Patinopecten caurinus.
October 1, 2000... Giant Pacific or weathervane sea scallops, Patinopecten caurinus, were first fished commercially in the Gulf of Alaska in 1967, when 3449 kg of unshucked sea scallops (estimated 341 kg of meats) were landed at Kodiak, Alaska (Haynes and Powell,...

Preliminary examination of the match-mismatch hypothesis and recruitment variability of yellowtail flounder, Limanda ferruginea.
October 1, 2000... Underlying explanations of recruitment variation among fish stocks have been an issue for several decades. An understanding of biological relationships between larval fish and their zooplankton prey is needed for interpreting recruitment...

Onset of association behavior in striped jack, Pseudocaranx dentex, in relation to floating objects.
October 1, 2000... Many marine and freshwater species associate with floating objects (flotsam) during some period of their life history (Senta, 1965; Hunter and Mitchell, 1967; Kingsford, 1993). This association behavior is well known among fishermen, who often...

The occurrence of the provisional Brazilian subspecies of spiny lobster (Panulirus argus westonii) in Florida waters(*).
October 1, 2000... The Caribbean spiny lobster, Panulirus argus, is distributed from Brazil throughout the Caribbean and the Gulf of Mexico to approximately North Carolina and Bermuda (Holthius, 1991). It supports major commercial fisheries in Florida, the...

On comparison of growth curves: How do we test whether growth rates differ?
October 1, 2000... Comparisons of growth rates of populations and species are important in fisheries science for a range of reasons that vary with the context of each study. Most studies of fish growth have focused on the practical issues of the most appropriate...

Occurrence of Pacific sardine, Sardinops sagax, off southeastern Alaska.
October 1, 2000... Pacific sardines, Sardinops sagax (Jenyns, 1842), are an important forage and commercial species off central and southern California. From the late 1920s through the early 1940s, sardines were a major resource of the oil and meal fisheries of...