Dynamic age-length keys – age determination of codfish Are Salthaug 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 distributions can be estimated without much difficulty from length distributions (Fridrikson, […]
Effect of analytical conditions in wavelength dispersive electron microprobe analysis on the measurement of strontium-to-calcium ratios in otoliths of anadromous salmonids – Sr/Ca Christian E. Zimmerman The use of strontium-to-calcium (Sr/Ca) ratios in otoliths is becoming a standard method to describe life history type and the chronology of migrations between freshwater and seawater habitats in […]
Age, growth, maturation, and protandric sex reversal in common snook, Centropomus undecimalis, from the east and west coasts of South Florida – Statistical Data Included Ronald G. Taylor Abstract.–During 1986-91, we examined 2088 common snook, Centropomus undecimalis, captured in Jupiter and Lake Worth inlets and adjacent waters on the east coast of Florida and 1784 […]
Age, growth, and reproduction of permit in Florida waters – Trachinotus falcatus – Statistical Data Included Roy E. Crabtree Abstract–We examined 536 permit (Trachinotus falcatus, 65-916 mm FL) collected from the waters of Florida Keys and from the Tampa Bay area on Florida’s Gulf coast to describe their growth and reproduction. Among permit that we […]
Somatic growth function for immature loggerhead sea turtles, Caretta caretta, in southeastern U.S. waters – Statistical Data Included Karen A. Bjorndal Abstract–The Sea Turtle Stranding and Salvage Network, coordinated by the National Marine Fisheries Service through a network of state coordinators, archives data on sea turtles that strand along the U.S. coast. We conducted length-frequency […]
Geographic and temporal patterns in size and maturity of the longfin inshore squid off the northeastern United States – Loligo pealeii Emma M.C. Hatfield Abstract–Analysis of 32 years of standardized survey catches (1967-98) indicated differential distribution patterns for the longlin inshore squid (Loligo pealeii) over the northwest Atlantic U.S. continental shelf, by geographic region, depth, […]
Larval development of the kishi velvet shrimp, Metapenaeopsis dalei , reared in the laboratory – Rathbun – Decapoda: Penaeidae – Statistical Data Included Jung H. Choi Abstract–The complete larval development of Metapenaeopsis dalei (Rathbun) is described from laboratory-reared larvae. The larvae were reared in a plastic container (20 L). Larvae from the first zoeal stage […]
Distribution and abundance of humpback whales and other marine mammals off the northern Washington coast John Calambokidis Abstract–We examined the summer distribution of marine mammals off the northern Washington coast based on six ship transect surveys conducted between 1995 and 2002, primarily from the NOAA ship McArthur. Additionally, small boat surveys were conducted in the […]
Magnitude and distribution of sea turtle bycatch in the sea scallop dredge fishery in two areas of the northwestern Atlantic Ocean, 2001-2002 Kimberly T. Murray Abstract–In May 2001, the National Marine Fisheries Service (NMFS) opened two areas in the northwestern Atlantic Ocean that had been previously closed to the U.S. sea scallop (Placopecten magellanicus) dredge […]
Fish recolonization in temperate Australian rockpools: a quantitative experimental approach Shane P. Griffiths Abstract–Understanding recolonization processes of intertidal fish assemblages is integral for predicting the consequences of significant natural or anthropogenic impacts on the intertidal zone. Recolonization of experimentally defaunated intertidal rockpools by fishes at Bass Point, New South Wales (NSW), Australia, was assessed quantitatively […]