Fishery Bulletin articles from January 2006

Fishery Bulletin archives from January 2006

Precision and accuracy of fish length measurements obtained with two visual underwater methods.
January 1, 2006... Abstract--During the VITAL cruise in the Bay of Biscay in summer 2002, two devices for measuring the length of swimming fish were tested: 1) a mechanical crown that emitted a pair of parallel laser beams and that was mounted on the main camera...

The effect of predation (current and historical) by humpback whales (Megaptera novaeangliae) on fish abundance near Kodiak Island, Alaska.
January 1, 2006... Abstract--Humpback whales (Megaptera novaeangliae) are significant marine consumers. To examine the potential effect of predation by humpback whales, consumption (kg of prey daily) and prey removal (kg of prey annually) were modeled for a...

Variation in trawl geometry due to unequal warp length.(surveys)
January 1, 2006... Abstract--Survey standardization procedures can reduce the variability in trawl catch efficiency thus producing more precise estimates of biomass. One such procedure, towing with equal amounts of trawl warp on both sides of the net, was...

The effect of autotrawl systems on the performance of a survey trawl.
January 1, 2006... Abstract--Three aspects of a survey bottom trawl performance--1) trawl geometry (i.e., net spread, door spread, and headrope height); 2) footrope distance off-bottom; and 3) bridle distance off-bottom--were compared among hauls by using either...

The fishery for California market squid (Loligo opalescens) (Cephalopoda: Myopsida), from 1981 through 2003.(markets)
January 1, 2006... Abstract--The California market squid (Loligo opalescens) has been harvested since the 1860s and it has become the largest fishery in California in terms of tonnage and dollars since 1993. The fishery began in Monterey Bay and then shifted to...

Variability in supply and cross-shelf transport of pink shrimp (Farfantepenaeus duorarum) postlarvae into western Florida Bay.
January 1, 2006... Abstract--The variability in the supply of pink shrimp (Farfantepenaeus duorarum) postlarvae and the transport mechanisms of planktonic stages were investigated with field data and simulations of transport. Postlarvae entering the nursery...

Biology and assessment of the painted sweetlips (Diagramma pictum (Thunberg, 1792)) and the spangled emperor (Lethrinus nebulosus (Forsskal, 1775)) in the southern Arabian Gulf.
January 1, 2006... Abstract--The population biology and status of the painted sweeplips (Diagramma pictum) and spangled emperor (Lethrinus nebulosus) in the southern Arabian Gulf were established by using a combination of size-frequency, biological, and...

A catch-free stock assessment model with application to goliath grouper (Epinephelus itajara) off southern Florida.
January 1, 2006... Abstract--Many modern stock assessment methods provide the machinery for determining the status of a stock in relation to certain reference points and for estimating how quickly a stock can be rebuilt. However, these methods typically require...

Fish assemblages found in tidal-creek and seagrass habitats in the Suwannee River estuary.
January 1, 2006... Abstract--Fish assemblages were investigated in tidal-creek and seagrass habitats in the Suwannee River estuary, Florida. A total of 91,571 fish representing 43 families were collected in monthly seine samples from January 1997 to December...

Prevalence, intensity, and effect of a nematode (Philometra saltatrix) in the ovaries of bluefish (Pomatomus saltatrix).
January 1, 2006... Abstract--Examination of 203 adult bluefish (Pomatomus saltatrix) from Long Island, New York, in 2002 and 2003 and 66 from the Outer Banks, North Carolina, in 2003 revealed the presence of dracunculoid nematodes (Philometra saltatrix) in the...

Duration of unassisted swimming activity for spotted dolphin (Stenella attenuata) calves: implications for mother-calf separation during tuna purse-seine sets.
January 1, 2006... Abstract--Size-related differences in power production and swim speed duration may contribute to the observed deficit of nursing calves in relation to lactating females killed in sets by tuna purse-seiners in the eastern tropical Pacific Ocean...

Population structure and variance effective size of red snapper (Lutianus campechanus) in the northern Gulf of Mexico *.
January 1, 2006... Abstract--We assayed allelic variation at 19 nuclear-encoded microsatellites among 1622 Gulf red snapper (Lutjanus campechanus) sampled from the 1995 and 1997 cohorts at each of three offshore localities in the northern Gulf of Mexico (Gulf)....

The relationship between smolt and postsmolt growth for Atlantic salmon (Salmo salar) in the Gulf of St. Lawrence.
January 1, 2006... The interaction of ocean climate and growth conditions during the postsmolt phase is emerging as the primary hypothesis to explain patterns of adult recruitment for individual stocks and stock complexes of Atlantic salmon (Salmo salar)....

Erratum.(Correction Notice)
January 1, 2006... Erratum: Fishery Bulletin 102(4): p. 568. Calambokidis, John, Gretchen H. Steiger, David K. Ellifrit, Barry L. Troutman, and C. Edward Bowlby Distribution and abundance of humpback whales (Megaptera novaeangliae) and other marine mammals off...