CARR and GlESEL: IMPACT OF THERMAL EFFLUENT 



Table 2. — List of fishes collected during the hot season of 1973 from three creeks in the vicinity of the Northside Generating Station, 



Jacksonville, Fla. 



Family 



Scientific name 



Common name' 



Class^ 



Species 

 utilized^ 



Elopidae 

 Clupeidae 



Engraulidae 



Synodontidae 



Ariidae 



Batrachoididae 



Belonidae 



Cyprinodontidae 



Poeciliidae 



Atherinidae 



Syngnathidae 



Carangidae 



Lutjanidae 

 Gerreldae 



Sparidae 

 Sciaenidae 



Ephippidae 

 Mugilidae 



Gobiidae 



Triglidae 

 Bctliidae 



Cynoglossidae 

 Tetraodontidae 



Elops saurus 

 Brevoortia tyrannus" 

 Opisthonema oglinum 

 Anchoa hepsetus 

 Anchoa mitchilli 

 Synodus toetens 

 Arius fells 

 Opsanus tau 

 Strongylura marina 

 Cyprlnodon variegatus 

 Fundulus grandis 

 Fundulus heteroclitus 

 Fundulus majalis^ 

 Gambusia afflnis 

 Poecilla latiplnna 

 Menldia beryllina 

 Syngnathus florldae 

 Caranx hippos 

 Chloroscombrus chrysurus 

 Selene vomer 

 Trachlnotus falcatus 

 Lutjanus griseus 

 DIapterus ollsthostomus 

 Euclnostomous argenteus 

 Euclnostomous gula 

 Gerres cinereus 

 Archosargus probatocephalus 

 Lagodon rhomboldes 

 Balrdlella chrysura 

 Cynosclon nebulosus 

 Leiostomus xanthurus 

 MIcropogon undulatus 

 Pogonlas cromis 

 Sclaenops ocellata 

 Chaetodipterus faber 

 Mugll cephalus 

 Mugll curema 

 Goblonellus boleosoma 

 Gobionellus hastatus 

 Goblonellus smaragdus 

 Goblosoma bosci 

 MIcrogoblus gulosus 

 Prionotus tribulus 

 CItharlchthys spllopterus 

 Etropus crossotus 

 Parallchthys lethostlgma 

 Symphurus plaglusa 

 Sphoeroldes nephelus 



Ladyfisli 



Atlantic menhaden 

 Atlantic thread herring 

 Striped anchovy 

 Bay anchovy 

 Inshore lizardfish 

 Sea catfish 

 Oyster toadfish 

 Atlantic needlefish 

 Sheepshead minnow 

 Gulf killifish 

 Mummichog 

 Striped killifish 

 Mosquitofish 

 Sailfin molly 

 Tidewater silverside 

 Dusky pipefish 

 Crevalle jack 

 Atlantic bumper 

 Lookdown 

 Permit 



Gray snapper 

 Irish pompano 

 Spotfin mojarra 

 Silver jenny 

 Yellov/fin mojarra 

 Sheepshead 

 Pinfish 

 Silver perch 

 Spotted seatrout 

 Spot 



Atlantic croaker 

 Black drum 

 Red drum 

 Atlantic spadefish 

 Striped mullet 

 White mullet 

 Darter goby 

 Sharptail goby 

 Emerald goby 

 Naked goby 

 Clown goby 

 Bighead searobin 

 Bay whiff 

 Fringed flounder 

 Southern flounder 

 Blackcheek tonguefish 

 Southern puffer 



'Common names recommended by Bailey (1970) are used. 



2J = juvenile; A = adult. 



'Species utilized refers to either sport species or to species cited by Lyies (1969:463-487) as being used by man for food or related fishery products. 



*Some of these specimens may have been B. smithll and/or hybrids of Brevoortia smithll as described by Dahlberg (1970). Since they were all juvenile 

 specimens the major characters given by Dahlberg for distinguishing between the three possibilities were extremely difficult to apply with certainty. 



^According to Carter R. Gilbert (pers. commun.) of the Florida State Museum, some of these specimens may have been F. simllis. The taxonomic status of 

 the two species on the northeast coast of Florida is somewhat uncertain. 



Gobiidae, all of the specimens were juveniles that 

 were using the creeks as a nursery area. Twenty of 

 the species are utilized directly by man, i.e., are 

 species used for food and/or related fishery prod- 

 ucts including sport species and bait fishes. Sub- 

 sequent references to "utilizable species" refer to 

 those used by man as defined above. 



Tables 3-5 provide monthly summaries of the 

 numbers of individuals and the estimated den- 

 sities of all fish species collected from the three 

 creeks. Of the 48 species obtained in one or more 

 collections, 30 were collected at least once in San 

 Carlos Creek, 23 were collected in Nichols Creek, 



and 37 appeared in Browns Creek. Four species, 

 Cyprinodon variegatus and three species of 

 gobies {Gobionellus smaragdus, Gobiosomo 

 bosci, and Microgobius gulosus), were collected 

 only in San Carlos Creek thereby suggesting that 

 they preferred the high temperature regime af- 

 forded there. However, the three species of gobies 

 appeared only in the June samples. Eleven other 

 species of temperature tolerant fishes were pres- 

 ent in San Carlos Creek at densities that were 

 either as great, or greater, than the densities pres- 

 ent in the ambient temperature creek. These 

 species were as follows (in order of decreasing 



71 



