Fishery Bulletin articles from April 2007

Fishery Bulletin archives from April 2007

Sensitivity of angler benefit estimates from a model of recreational demand to the definition of the substitute sites considered by the angler.
April 1, 2007... Abstract--Fishery managers are mandated to understand the effects that environmental damage, fishery regulations, and habitat improvement projects have on the net benefits that recreational anglers derive from their sport. Since 1994, the...

Multiscale habitat associations of deepwater demersal fishes off central California.
April 1, 2007... Abstract--Fish-habitat associations were examined at three spatial scales in Monterey Bay, California, to determine how benthic habitats and landscape configuration have structured deepwater demersal fish assemblages. Fish counts and habitat...

Use of endoparasitic helminths as tags in delineating stocks of American plaice (Hippoglossoides plotessoides) from the southern Gulf of St. Lawrence and Cape Breton Shelf.
April 1, 2007... Abstract--Endoparasitic helminths were inventoried in 483 American plaice (Hippoglossoides platessoides) collected from the southern Gulf of St. Lawrence, NAFO (North Atlantic Fisheries Organization) division 4T, and Cape Breton Shelf (NAFO...

Implications of substrate complexity and kelp variability for south-central Alaskan nearshore fish communities.
April 1, 2007... Abstract--Understanding the interactions between kelp beds and nearshore fish is essential because anthropogenic changes and natural variability in these beds may affect available habitat for fishes. In this study fish communities were...

Genetic variability in spotted seatrout (Cynoscion nebulosus), determined with microsatellite DNA markers.
April 1, 2007... Abstract--Variation in the allele frequencies of five microsatellite loci was surveyed in 1256 individual spotted seatrout (Cynoscion nebulosus) obtained from 12 bays and estuaries from Laguna Madre, Texas, to Charlotte Harbor, Florida, to St....

Review of the crevalle jacks, Caranx hippos complex (Teleostei: Carangidae), with a description of a new species from West Africa.
April 1, 2007... Abstract--The Caranx hippos species complex comprises three extant species: crevalle jack (Caranx hippos) (Linnaeus, 1766) from both the western and eastern Atlantic oceans; Pacific crevalle jack (Caranx caninus) Gtinther, 1868 from the eastern...

Diets of Steller sea lions (Eumetopias jubatus) in Southeast Alaska, 1993-1999.
April 1, 2007... Abstract--The diet of Steller sea lions (Eumetopiasjubatus) was determined from 1494 scats (feces) collected at breeding (rookeries) and nonbreeding (haulout) sites in Southeast Alaska from 1993 to 1999. The most common prey of 61 species...

Spawning and early development of captive yellowfin tuna (Thunnus albacares).
April 1, 2007... Abstract--In this study we describe the courtship and spawning behaviors of captive yellowfin tuna (Thunnus albacares), their spawning periodicity, the influence of physical and biological factors on spawning and hatching, and egg and...

Re-estimation of small-scale fishery catches for U.S. flag-associated island areas in the western Pacific: the last 50 years.
April 1, 2007... Abstract--Nearshore fisheries in the tropical Pacific play an important role, both culturally and as a reliable source of food security, but often remain under-reported in statistics, leading to undervaluation of their importance to...

Whole-gear efficiency of a benthic survey trawl for flatfish.
April 1, 2007... Abstract--Whole-gear efficiency (the proportion of fish passing between the otter doors of a bottom trawl that are subsequently captured) was estimated from data collected during experiments to measure the herding efficiency of bridles and...

Yellow (Perca flavescens) and Eurasian (P. fluviatilis) perch distinguished in fried fish samples by DNA analysis.
April 1, 2007... DNA techniques are increasingly used as diagnostic tools in many fields and venues. In particular, a relatively new application is its use as a check for proper advertisement in markets and on restaurant menus. The identification of fish from...

Natural mortality rate, annual fecundity, and maturity at length for Greenland halibut (Reinhardtius hippoglossoides) from the northeastern Pacific Ocean.
April 1, 2007... Mortality, fecundity, and size at maturity are important life history traits, and their interactions determine the evolution of life history strategies (Roff, 1992; Stearns, 1992; Charnov, 2002). These same traits are also important for...

Validation of back-calculation equations for juvenile bluefish (Pomatomus saltatrix) with the use of tetracycline-marked otoliths.
April 1, 2007... In recent years, a decrease in the abundance of bluefish (Pomatomus saltatrix) has been observed (Fahay et al., 1999; Munch and Conover, 2000) that has led to increased interest in a better understanding the life history of the species....

Announcement of the NMFS (National Marine Fisheries Service) best paper awards.(Brief article)
April 1, 2007... The National Marine Fisheries Service best scientific paper awards for 2006 were awarded to the following authors: Butler, John, Melissa Neuman, Deanna Pinkard, Rikk Kvitek, and Guy Cochrane The use of multibeam sonar mapping...