Fishery Bulletin articles from April 2003

Fishery Bulletin archives from April 2003

Use of ocean and estuarine habitats by young-of-year bluefish (Pomatomus saltatrix) in the New York Bight *.
April 1, 2003... Abstract--Young-of-year (YOY) bluefish (Pomatomus saltatrix) along the U.S. east coast are often assumed to use estuaries almost exclusively during the summer. Here we present data from 1995 to 1998 indicating that YOY (30-260 mm FL) also use...

Dynamics of bigeye (Thunnus obesus) and yellowfin (T. albacares) tuna in Hawaii's pelagic fisheries: analysis of tagging data with a bulk transfer model incorporating size-specific attrition.
April 1, 2003... Abstract--Tag release and recapture data of bigeye (Thunnus obesus) and yellowfin tuna (T. albacares) from the Hawaii Tuna Tagging Project (HTTP) were analyzed with a bulk transfer model incorporating size-specific attrition to infer population...

The geographic basis for population structure in Fraser River chinook salmon (Oncorhynchus tshawytscha).(genetic variation of chinook salmon)
April 1, 2003... Abstract--We surveyed variation at 13 microsatellite loci in approximately 7400 chinook salmon sampled from 52 spawning sites in the Fraser River drainage during 1988-98 to examine the spatial and temporal basis of population structure in the...

Evaluation and application of microsatellites for population identification of Fraser River chinook salmon (Oncorhynchus tshawytscha).
April 1, 2003... Abstract--Variation at 13 microsatellite loci was previously surveyed in approximately 7400 chinook salmon (Oncorhynchus tshawytscha) sampled from 50 localities in the Fraser River drainage in southern British Columbia. Evaluation of the...

Biology and population dynamics of cowcod (Sebastes levis) in the southern California Bight.
April 1, 2003... Abstract--Cowcod (Sebastes levis) is a large (100-cm-FL), long-lived (maximum observed age 55 yr) demersal rockfish taken in multispecies commercial and recreational fisheries off southern and central California. It lives at 20-500 m depth:...

Life history and population dynamics of the finetooth shark (Carcharhinus isodon) in the northeastern Gulf of Mexico.
April 1, 2003... Abstract--The life history and population dynamics of the finetooth shark (Carcharhinus isodon) in the northeastern Gulf of Mexico were studied by determining age, growth, size-at-maturity, natural mortality, productivity, and elasticity of...

Quantifying annual variation in catchability for commercial and research fishing.
April 1, 2003... Abstract--Biomass indices, from commercial catch per unit of effort (CPUE) or random trawl surveys, are commonly used in fisheries stock assessments. Uncertainty in such indices, often expressed as a coefficient of variation (CV), has two...

The effect of intensive line fishing on the virgin biomass of a tropical deepwater snapper, the crimson jobfish (Pristipomoides filamentosus).
April 1, 2003... Abstract--An intensive commercial hook-and-line fishing operation targeted the demersal fisheries resources at Saya de Malha Bank in the Southwest Indian Ocean. Fishing was conducted with 12 dories that were equipped with echo sounders and...

Demographic assessment of the blue crab (Callinectes sapidus) in Chesapeake Bay using extractable lipofuscins as age markers *.(age determination of the blue crab)
April 1, 2003... Abstract--The blue crab (Callinectes sapidus) plays an important economic and ecological role in estuaries and coastal habitats from the Gulf of Mexico to the east coast of North America, but demographic assessments are limited by length-based...

Modeling the effect of striped bass (Morone saxatilis) on the population viability of Sacramento River winter-run chinook salmon (Oncorhynchus tshawytscha).
April 1, 2003... Abstract--we estimated the impact of striped bass (Morone saxatilis) predation on winter-run chinook salmon (Oncorhynchus tshawytscha) with a Bayesian population dynamics model using striped bass and winter-run chinook salmon population...

Seasonal egg production of whitemouth croaker (Micropogonias furnieri) in the Rio de la Plata estuary, Argentina-Uruguay.
April 1, 2003... Abstract--The reproductive biology of the whitemouth croaker (Micropogonias furnieri) inhabiting the estuarine waters of the Rio de la Plata (Argentina-Uruguay) was studied by using histological analysis of the ovaries. Samples were collected...

Growth, recruitment, and abundance of juvenile striped mullet (Mugil cephalus) in South Carolina estuaries *.
April 1, 2003... Abstract--Growth, recruitment, and abundance of young-of-the-year (YOY) striped mullet (Mugil cephalus L.) in estuarine habitats in South Carolina from 1998 to 2000 were examined and compared to historical data (1986-91) of growth, recruitment,...

Migration patterns of spiny dogfish (Squalus acanthias) in the North Pacific Ocean.
April 1, 2003... Abstract--From 1978 to 1988, approximately 71,000 spiny dogfish (Squalus acanthias) were tagged off the west coast of Canada. This program is the most extensive tagging study conducted for a shark species. Twelve years after the last year of...

Larval development of the southern sea garfish (Hyporhamphus melanochir) and the river garfish (H. regularis) (Beloniformes: Hemiramphidae) from South Australian waters.
April 1, 2003... Abstract--Larval development of the southern sea garfish (Hyporhamphus melanochir) and the river garfish (H. regularis) is described from specimens from South Australian waters. Larvae of H. melanochir and H. regularis have completed notochord...

Age and growth of the estuarine dolphin (Sotalia guianensis) (Cetacea, Delphinidae) on the Parana coast, southern Brazil.
April 1, 2003... Abstract--Teeth of 71 estuarine dolphins (Sotalia guianensis) incidentally caught on the coast of Parana State, southern Brazil, were used to estimate age. The oldest male and female dolphins were 29 and 30 years, respectively. The mean...

The relative value of different estuarine nursery areas in North Carolina for transient juvenile marine fishes.
April 1, 2003... Abstract--Offshore winter-spawned fishes dominate the nekton of southeastern United States estuaries. Their juveniles reside for several months in shallow, soft bottom estuarine creeks and bays called primary nursery areas. Despite similarity...

Age and growth estimates of the winter skate (Leucoraja ocellata) in the western Gulf of Maine.
April 1, 2003... Abstract--Age and growth estimates for the winter skate (Leucoraja ocellata) were estimated from vertebral band counts on 209 fish ranging in size from 145 to 940 mm total length (TL). An index of average percent error (IAPE) of 5.8% suggests...

Diet composition of large striped bass (Morone saxatilis) in Chesapeake Bay *.
April 1, 2003... Abstract--Large (>458 mm) striped bass (Morone saxatilis) are dominant predators in Chesapeake Bay. In recent years, the Chesapeake Bay stock of striped bass has increased dramatically, raising concerns about their predatory impact and their...

Reproductive seasonality, fecundity, and spawning frequency of tautog (Tautoga onitis) in the lower Chesapeake Bay and coastal waters of Virginia *.
April 1, 2003... Abstract--The tautog, Tautoga onitis (Linnaeus), ranges from Nova Scotia to South Carolina and has become a popular target for recreational and commercial fisheries. Although tautog are a multiple spawning species, reproductive potential,...

Investigation of congeneric hybridization in and stock structure of weakfish (Cynoscion regalis) inferred from analyses of nuclear and mitochondrial DNA loci *.
April 1, 2003... The weakfish (Cynoscion regalis) is distributed along the east coast of the United States from Massachusetts to eastern Florida and is most abundant from New York to North Carolina (Bigelow and Schroeder, 1953). Historically there has been some...

Dynamic age-length keys.(age determination of codfish)
April 1, 2003... Information about age composition is important when analyzing fish population dynamics. Age determination of individual fish is more difficult and time consuming than the recording of length measurements but by using age-length keys, age...

Effects of blood extraction on horseshoe crabs (Limulus polyphemus).
April 1, 2003... Horseshoe crabs (Limulus polyphemus) are caught by commercial fishermen for use as bait in eel and whelk fisheries (Berkson and Shuster, 1999)--fisheries with an annual economic value of $13 to $17 million (Manion et al. (1)). Horseshoe crabs...

Erratum.(Correction Notice)
April 1, 2003... Fishery Bulletin 98(1): 127-138 (2000). Seyoum, Seifu, Michael D. Tringali, Theresa M. Bert, Doug McElroy, and Rod Stokes An analysis of genetic population structure in red drum (Sciaenops ocellatus) based on mtDNA control region...