666. Distribution and Relative Abundance of Fishes in 

 Newport River, North Carolina. By William R. Turner 

 and George N. Johnson. September 1973, iv + 23 pp., 1 

 fig., 13 tables. 



ABSTRACT 



Monthly sampling in Newport River during 1970 disclosed a total of 

 104 species of fishes within the system. Sampling extended from the 

 lower reaches of the estuary upstream into tidal fresh waters, and 

 covered a mid-channel distance of 34.87 km. To sample as wide a range 

 of species as possible, an array of collecting gear was used, i.e.. haul 

 seine, surface trawl, bottom trawls (two sizes), and gill nets. In terms of 

 catch per unit of effort the surface trawl was the most successful gear 

 employed, whereas gill nets, the least efficient gear, captured the 

 greatest variety of species. 



Most of the species of fishes collected in the system were marine forms. 

 Only 15 essentially freshwater species were collected and 5 of these 

 (longnose gar, gizzard shad, golden shiner, white catfish, and black crap- 

 pie) showed varying degrees of tolerance for saline waters (0.6-33.7 %c,). 



Relative numbers of fishes in collections by the different gears in- 

 dicated that seven species made up 97T; of the total catch which com- 

 prised nearly 129,000 individuals. The dominant species were all marine 

 euryhaline forms that used the estuary as a nursery area, penetrating 

 well upstream into brackish or even tidal fresh waters. Seasonal distribu- 

 tion and abundance of the dominant species, as well as other species 

 collected in substantial numbers, are discussed. 



Biomass of fishes in collections by haul seine was estimated at 0.93 

 g/m' for littoral waters of the estuary. Samples collected by other gears 

 did not yield satisfactory estimates of biomass. 



667. An Analysis of the Commercial Lobster (Homarus 

 americanus) Fishery Along the Coast of Maine, August 

 1966 Through December 1970. By James C. Thomas. 

 June 1973, v + 57 pp., 18 figs., 11 tables. 



ABSTRACT 



We have used some life history information and detailed catch and 

 effort data from probability sampling of the commercial catch of lobsters 

 to estimate a biological minimum size of 89-mm (S'i inches) carapace 

 length for maximum sustainable yield. In view of this recommendation, 

 the maximum size regulation of 127-mm (5 inches) carapace length is 

 unnecessary. 



668. An Annotated Bibliography of the Cunner, Tauto- 

 golabrus adspersus (Walbaum). By Fredric M. Serchuk 

 and David W. Frame. May 1973, ii + 43 pp. 



ABSTRACT 



This annotated, indexed bibliography of the cunner contains 347 

 entries including references on taxonomy, distribution, life history, 

 physiology, behavior, commercial and sport fisheries, and related fields. 

 It may be considered current through June 1972. 



669. Subpoint Prediction for Direct Readout Meteoro- 

 logical Satellites. By L. E. Eber. August 1973, iii + 7 pp., 

 2 figs., 1 table. 



ABSTRACT 



The National Environmental Satellite Service (NESS) provides 

 orbital information on meteorological satellites with direct transmission 

 systems, through APT (Automatic Picture Transmission) Predict 

 messages sent over standard weather communications networks. With 

 periodic access to this information, operators of independent APT 

 ground receiving stations can extrapolate, by means of nodal period and 

 nodal increment, to determine future orbits within receiving range of 

 their station. A technique for the prediction of subpoint location along an 

 orbit as a function of time after ascending node was developed from con- 

 sideration of Kepler's laws and derived expressions for the force due to 

 the earth's gravitational potential. Subpoint latitudes and longitudes 

 computed by this technique are within 0.1 degree of those given in NESS 

 predictions. 



670. Unharvested Fishes in the U.S. Commercial Fishery 

 of Western Lake Erie in 1969. By Harry D. Van Meter. 

 July 1973, iii + II pp., 6 figs., 6 tables. 



ABSTRACT 



Potential commercial fish production was estimated for U.S. waters of 

 western Lake Erie in 1969 from pounds landed and pounds discarded. 



Periodic observations of catches in haul seines and trap nets revealed 

 that about 37''i of the catch (by weight) in haul seines and 26?c of that in 

 trap nets were low-value fishes that were discarded. Projection of these 

 discarded catches to include the total fishing effort indicated that an ad- 

 ditional 2.8 million lb of low-value species would have been landed in 

 1969 if a reasonable profit had been assurred. It is concluded that the 

 sustained yield could be increased considerably with only a moderate in- 

 crease in fishing effort. 



671. Coastal Upwelling Indices, West Coast of North 

 America, 1946-71. By Andrew Bakun. June 1973, iv -1- 103 

 pp., 6 figs., 3 tables, 104 app. figures. 



ABSTRACT 



A series of monthly indices of intensity of large-scale, wind-induced 

 coastal upwelling at selected locations along the west coast of North 

 America is presented for the period 1946 through 1971. The indices are 

 based on calculations of offshore Ekman surface wind transport from 

 monthly mean surface atmospheric pressure data. Summaries by 

 quarter and by year are included. 



The effect of using monthly mean pressure data is evaluated by com- 

 parison to a similar series of monthly means of transports computed 6- 

 hourly over a 4' 2-yr period. The correlation between the two series at any 

 particular location was found to be high. However, the slope of the 

 regression line varies at different locations. Also values off southern 

 California during summer may be amplified relative to other locations as 

 a result of the discontinuity in the atmospheric pressure gradient caused 

 by the coastal mountain range between the thermal low in the interior of 

 southern California and the higher pressure offshore. The conclusion is 

 that these series may be satisfactory indicators of temporal variations of 

 upwelling at each location, but less satisfactory indicators of spatial dis- 

 tributions. 



672. Seasonal Occurrence of Young Gulf Menhaden and 

 Other Fishes in a Northwestern Florida Estuary. By 

 Marlin E. Tagatz and E. Peter H. Wilkens. August 1973, 

 iii -I- 14 pp., 1 fig., 4 tables. 



ABSTRACT 



Gulf menhaden, Brevoortia patronus, and other species of fishes were 

 collected by plankton net, seine, and surface trawl from Pensacola Bay, 

 East Bay, and East Bay River from December 1969 to October 1971. 

 Relative abundance, distribution, and relative growth of menhaden are 

 given from the time they enter the estuary as larvae in December to the 

 time they emigrate to the Gulf of Mexico as juveniles in September. 



Eighty-four species of fishes, representing 46 families, were captured. 

 The number and length range of each species by month are presented for 

 the areas from which it was caught. Also included are the salinity and 

 temperature ranges at capture. Four species were not previously record- 

 ed from Pensacola estuaries. 



673. Abundance and Distribution of Inshore Benthic Fauna 

 off Southwestern Long Island, N.Y. By Frank W. Steimle, 

 Jr. and Richard B. Stone. December 1973, iii -I- 50 pp., 2 

 figs., 5 app. tables. 



ABSTRACT 



This paper describes a qualitative and quantitative census of the 

 inshore benthic fauna off southwest Long Island over the period 

 February 1966 through January 1967. prior to construction of an ocean 

 sewer outfall in the general vicinity. Preliminary analyses of data in- 

 dicate the presence of three distinct communities: 1) an inshore medium 

 to coarse grain sand community dominated by the bivalve. Tellina agilis, 

 the amphipod. Protohauslorius deichmannae. and the echinoderm. 

 Echinarachnius parma; 2) an offshore silty fine sand community 

 dominated by the bivalve. Nucula proximo, and the polychaete, 

 Nephtya incisa: and 3) a community dominated by the blue mussel, 

 Mytiliis edulix- 



NOAA TECHNICAL MEMORANDUM NMFS 



ABFL-l. An Improved Incubator for Salmonids and 

 Results of Preliminary Tests of Its Use. By Jack E. Bailey 

 and William R. Heard. September 1973, iii -I- 7 pp., 2 

 figs., 3 tables. 



ABSTRACT 



The environmental requirements of salmonid eggs and alevins are not 

 fully met in conventional hatchery practices, and the resulting fry are 

 physically and behaviorally different from those produced in nature. 



