PLEASE RETURN TO: OREGON ESTUARINE RESEARCH COUNCIL School of Oceanography Oregon State Unverny. CorvafliS, Oregon 97331

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1 PLEASE RETURN TO: OREGON ESTUARINE RESEARCH COUNCIL School of Oceanography Oregon State Unverny CorvafliS, Oregon The Occurrence and Distribution of Fish in the Umpqua River Estuary, June Through October 1972 Robert E. Mullen Oregon Department of Fish and Wildlife April 1977 This work was conducted with matching state and federal PL funds.

2 CONTENTS ABSTRACT INTRODUCTION THE STUDY AREA METHODS RESULTS AND DISCUSSION 3 Species Collected 3 Numbers of Species Collected 7 Numbers of Fish Collected 7 Spatial Distribution of Species Collected 7 Page Clupeidae 9 Engraulidae 14 Salmonidae 14 Osmeridae 14 Cyprinadae 15 Catostomidae 15 Ictaluridae 15 Gadidae 15 Atherinidae 15 Gasterosteidae 15 Syngnathidae 15 Percichthyidae 15 Centrarchidae 16 Embiotocidae 16 Pholidae 16 Ammodytidae 16 Gobfldae 16 Scorpaenidae 16 Hexagrammidae 16 Cottidae 16 Bothidae 17 Pleuronectidae 17 ACKNOWLEDGMENTS 17 LITERATURE CITED 18 APPENDIX A 19 APPENDIX B 34

3 TABLES Number Page Names of fishes captured in the Umpqua River estuary, June- October 1972 F I GURES Number Page The Umpqua River estuary showing the standard seining and gill-net sites 2 2 The Umpqua River estuary showing the supplemental seining and gill-net sites 3 Total number of species collected at each standard seining site in the Umpqua River estuary, Average number of species collected per seine haul at each standard seining site in the Umpqua River estuary, The mean number of fish collected per seine haul at standard seining sites, Umpqua River estuary 6 Observed distribution of fishes in the Umpqua River estuary, Mean lengths of American shad collected at various distances from the ocean in the Umpqua River estuary, July through October APPENDIX TABLES Number Page A-i Social Security Beach seine site, Umpqua River (low tide) 19 A-2 Social Security Beach seine site, Umpqua River (high tide) 20 A-3 North Spit seine site, Umpqua River (low tide) 21 A-L+ North Spit seine site, Umpqua River (high tide) 22 A-5 Army Hill seine site, Umpqua River 23 A-6 Cutoff Flats seine site, Umpqua River 24 A-7 Gardiner Channel seine site, Umpqua River 25

4 APPENDIX TABLES (Continued) Number A-8 Black's Island seine site, Umpqua River Page 26 A-9 Spruce Beach seine site, Umpqua River 27 A-b Mill Creek seine site, Umpqua River 28 A-li Lower Smith River seine site, Smith River 29 A-l2 Scholfield Slough gill-net site, Umpqua River 30 A-13 Dean Creek Slough gill-net site, Umpqua River 31 A-114 Otter Slough gill-net site, Smith River 32 A-15 Upper Smith River gill-net site, Smith River 33 B-I Supplemental seine sites A through 5, Umpqua River 314 B-2 Supplemental gill-net sites I through IX, Umpqua River 38

5 A B ST RACT The Umpqua River estuary was seined and gilinetted during the summer of 1972 to estimate the composition and distribution of fishes. The number of species collected at most sites averaged from four to six per seine haul and was relatively constant throughout the estuary. The number of fish collected per seine haul decreased as distance from the ocean increased. The distribution of the 1l species collected is discussed. INTRODUCTION The occurrence and distribution of fishes within Oregon estuaries have not been extensively studied or documented. Most fisheries work has been directed towards single species or small groups of species. More comprehensive studies dealing with all species present in a series of collections have recently been reported for the Coos (Cummings and Schwartz 1971, Hostick 1975), Sixes River (Reimers and Baxter 1976), and Tillamook (Cummings and Berry l97i; Forsberg, Johnson, and Klug 1975) estuaries. These studies are only a start towards cataloging and describing the distribution of fishes--many for the first time--within these estuaries. These studies also provide data that can be used to develop more specific questions and design more definitive studies. The Umpqua River estuary is Oregon's fourth largest in overall surface area (Oregon Division of State Lands 1973). During the summer of 1972 Department of Fish and Wildlife personnel seined and gillnetted in the Umpqua estuary to estimate the composition and distribution of fishes. THE STUDY AREA The estuaries of the Umpqua and Smith rivers were sampled. Sampling began at the mouths and terminated at Scottsburg on the Umpqua River and at the confluence of the North Fork on Smith River (Fig. 1). Mullen (1973) described the physical characteristics of the estuaries and summarized temperature and salinity data collected concurrently with the present study. METHODS Samples were collected from late June through October samples were collected with either a or with two variable-mesh monofilament gill nets (2L.1 38 x 2.5 m, 1.3-cm mesh-bag seine x 3.7 m with four equal-sized vertical panels of 1.9, 2.5, 3.2 and 3.8 cm stretched measure and 30.5 x 3.7 m with five equal-sized vertical panels of 1.5, 5.1, 5.7, 6J, and 7.6 cm stretched measure). A few exploratory seine hauls were made with a 54-rn, 1.9-cm mesh beach seine and a 6-rn, 0.3-cm mesh beach seine. The use of 15 m lead ropes increased the effective fishing areas of both the bag seine and the 524 m beach seine. Most

6 North Fork - (NF) I S Upper Smith River (us) Cutoff Flats (CE) Lower Smith River Gard i ner har,nel ( (sc) Otter Slough (OS) Black's Island (BI) Army HiI (AH) Social Security Beach (SSB) North Spit (NS) Reedsport Scholfield Slough (ss) Umpqua Spruce Beach (SB) Dean Cr. (DC) Mill Creek (MC Scot tsburg o Km Miles Scale Legend A Seining sites Gill-net sites a) a) L L) z Fig. 1. The Umpqua River estuary showing the standard seining and gill-net sites.

7 Nine standard seine sites and four standard gill-net sites were sampled bimonthly (Fig. 1). Supplemental sites were sampled on an irregular basis throughout the study area as time permitted (Fig. 2). Standard seining sites were sampled at or near low slack ti. Two of the sites, North Spit and Social Security Beach, were also sampled on high tides. Seining sites with a sloping bottom were selected whenever possible. Gill-net sites were sampled at or near high slack ti'e. Sites were selected that were as free of snags as possible and usually unsuitable for seining fish. The two nets were normally fished at the surface 50 m apart and anchored or tied at both ends. Gill-net sites were fished for approximately 1/2 h, and all standard sites were sampled during daylight hours. All fish collected were identified and counted in the field. When large numbers of a single species were seined, abundance was estimated by dipnetting the fish back into the water and subsampling the number in one or two dip nets. The fork lengths (mm) of live Pacific herring (Clupea harengus pallasi) and American shad (Alosa sapidissima) were measured. Length frequencies were then plotted from these data. Species Collected RESULTS AND DISCUSSION Of the 1.41 species of fish collected (Table 1), 31 species were collected from the standard seining and gill-net sites (Appendix A). Since only the shallow portions of the estuary were sampled over a short time period and with limited types of gear, the species list cannot be considered complete. Several species of fish known to be common inhabitants of the estuary were not collected during this study. Most noticeable of these were the green sturgeon (Acipenser medirostris) and the white sturgeon (A. transmontcznus), which are harvested by an intensive sport fishery within the estuary. These species inhabit the bottom in deeper areas than we sampled. Brown Irish lord (Herniiep)dzs srinosus), buffalo sculpin (Enophrps bison), cabezon (Scorpac ctiths marrnoratus), rock green 1 ing (Hexagrainmos iagocephaus), and whitespotted greenling (H. stelleri) were also harvested by the sport fishery (Gaumer, Demory, and Osis 1973), but they were not collected in our samples. These species inhabit rocky areas that were inaccessible to our sampling gear. At least 1+8 fish species inhabit the Umpqua River estuary, when all known species are added to those collected in

8 Fig. 2. The Umpqua River estuary showing the supplemental seining and gill-net sites.

9 Table 1. Names of fishes captured in the Umpqua River estuary, June- October Family and common name Clupeidae American shad Pacific herring Engraul idae Northern anchovy Salmon i dae Coho salmon Chinook salmon Cutthroat trout Rainbow trout Osmer I dae Surf smelt Night smelt Cyprinidae Umpqua squawfish Redside shiner Catostomi dae Largescale sucker Ictaluridae Brown bullhead Gad dae Pacific tomcod Scientific name 1 4iosa sapidissima Ciupea harengus pallasi 'vqrczulis mordax Oncorhynchus kisutch C. shawytscha Salmo clarki S. qairdneri Hupomesus pretiosus Sirinchus starksi Hychochei lus umpquae Hichardsonius balteatus Cacstomus macrochei lus Icalurus nebulosus Micro gadus proximus Atheri n idae Topsmel t Aherinops affinis Gas teros tel dae Threespine stickleback Syngnath i dae Bay pipefish Perc I chthy idae Striped bass Cent ra rch i dae Largemouth bass Black crappie Gasterosteus aculeatus Sonathus griseolineatus.'rcne saxatilis ;:ropterus salmoides 2coxis nigromaculatus 5

10 Table 1. (cont'd) Family and common name Scientific Name 1 Emb i otoc i dae Redtail surfperch Shiner perch Striped seaperch Walleye surfperch Silver surfperch White seaperch Pile perch Phol idae Saddleback gurinel Ammodyt i dae Pacific sandlance Gobi idae Arrow goby Scorpaen I dae Black rockfish Hexag ramm i dae Kelp greenflng Lingcod Cott i dae Silverspotted sculpin Sharpnose sculpin Prickly scuipin Pacific staghorn sculpin Both idae Speckled sanddab Pleuronect i dae English sole Starry flounder Sand sole Amphis tic'nus rl-zodoterus C'ymato gas ter aggregata Embiotoca lczteralis Hyperprosopon argenteum H. ellipticum Phanerodon furcatus Rhacoc7'zilus vacca Pholis ornata Ammody tes hexapterus Clevelandia ios Sebastes melanops Hexagrconmos decagrammus Ophiodon e longatus Blepsias cirrhosus Clinocottus acuticeps Cottus as per Leptocottus armatus Citharichthys stigmaeus Parophrys vetu7us Platichthys stellatus Psettichthys melanostictus Fror i';'on anc Scientific Nanes of Fishes, American Fisheries Society Special Pub. 6, 3rd ed.;

11 Cummings and Schwartz (1971), using similar gear, seined and gilinetted 1+1 species of fish in Coos Bay, 36 km south of the Umpqua River, during the summer of Thirty-one species were common to the Coos Bay and Umpqua River collections. Night smelt, Umpqua squawfish, brown bullhead, Pacific sandlance, silverspotted sculpin, and sharpnose sculpin were captured in the Umpqua estuary but were absent in Coos Bay collections. Whitebait smelt (4 sr2erus elongatus), jacksmelt (Atherinopsis californiensis), tube-snout (Aulorhynchus flavidus), high cockscomb (Anoplarchus purpurescens), snake prickleback (Lw'rpenus sagitta) penpoint gunnel (Apodichthys flavidus), bay goby (Lepidogobis lepidus), bocaccio (Sebastes paucispinis), and tidepool sculpin (Oligocottus maculosus) were collected in Coos Bay but were absent in the Umpqua collections. Numbers of Species Collected The number of species collected at each standard seining site was nearly constant, with the exception of the North Spit and Mill Creek sites (Fig. 3). North Spit had the highest species count (17) and Mill Creek the lowest (5). The number of species collected decreased upstream in Coos Bay (Hostick 1975) and in Tillamook Bay (Cummings and Berry l974). The catch at most of the standard seining stations averaged from four to six species per seine haul (Fig. 14). The North Spit station, where the most species were recorded, had the second lowest average catch in species, and thus showed the most pronounced temporal change in species composition. Numbers of Fish Collected There was a decreasing trend in the mean number of fish collected per seine haul at each site relative to the distance upstream from the river mouth (Fig. 5). There were a few notable exceptions to this trend. At Social Security Beach, Cutoff Flats, and Gardiner Channel, fewer fish were captured than at adjacent upstream sites. Many stations, especially those farthest downstream, showed an increase in the number of individuals collected during the third or fourth collection series (Appendix Tables A and B). As summer advanced, many juvenile fish were recruited to larger size classes and became more vulnerable to our sampling gear. Spatial Distribution of Species Collected The spatial distribution of each species was estimated from data collected at standard and nonstandard stations (Fig. 6). Several species were represented by only a few specimens in the catch, so their estimated range is probably minimal.

12 l SSB NS AH CF GC BI SB LS HC Seining Site (Upriver) Fig. 3. Total number of species collected at each standard seining site in the Umpqua River estuary, SSB NS All CF GC 81 SB LS MC Seining Site (Upriver) Fig. 4. Average number of species collected per seine haul at each standard seining site on the Umpqua River estuary,

13 1,200 1,000 :, CU U) U SSB 1S AN CF GC 81 S LS Seining Site (Upriver) Fig. 5. The mean number of fish collected per seine haul at standard seining sites, Umpqua River estuary, Clupeidae. American shad was the fifth most abundant species collected and was the most widely distributed species. In late June 1972, 29 yearling shad (1971 brood) averaging 119 mm, were seined on high tide at the North Spit. The remainder of the shad caught during the study were young-of-theyear (1972 brood). Ages were verified by scale analysis. Cummings and Schwartz (1971) found yearling shad in Coos River as late as the third week in August. Shad were seined at the upper river sites (Spruce Beach, Mill Creek, and Lower Smith) throughout the study period and successively at Black's Island, Gardiner Channel, Army Hill, and Social Security Beach as the summer progressed and the shad migrated downriver. Monthly mean lengths of juvenile shad were computed from subsamples of fish collected at the standard seining sites (Fig. 7). Larger shad were generally found further downriver than smaller ones during the entire study. Fish collected at any given site lacked consistent growth in length with time and remained virtually the same size or showed only a slight increase or decrease in size. This phenomenon could be explained if the fish ceased growing--an unlikely event in the summer. It seems more likely that a constant downriver migration of shad occurred throughout the study. At any given location and time, small fish entered the area from upriver while the larger fish moved downstream. This migration must continue into the ocean because there was no apparent concentration of juvenile shad at the lower river sites in late summer, nor was there an increase in size of shad captured near the river mouth.

14 Number of individuals American shad Pacific herring Northern anchovy Coho salmon Chinook salmon Cutthroat trout Rainbow trout Surf smelt Night smelt Umpqua squawfish Redside shiner Largescale sucker Brown bullhead Pacific tomcod Topsmelt Threespine stickleback 3,716 12, ,733 C 1, , Bay pipefish 14 0 I I I Kilometers from Ocean

15 Number of individuals Striped bass Largemouth bass 32 3 Black crappie Redtail surfperch Shiner perch Striped seaperch 73 7, Walleye surfperch Silver surfperch White seaperch 11 8 Pile perch Saddleback gunnel Pacific sandiance Arrow gohy 3 4,030 '+8 Black rockfish Kelp greenling Li ngcod 3 L I Kilometers from Ocean I 40

16 Number of individuals Silverspotted sculpin Sharpnose sculpin Prickly sculpin Pacific staghorn sculpin Speckled sanddab English sole Starry flounder Sand sole 3L3 1, Kilometers from Ocean Fig. 6. Observed distribution of fishes in the Umpqua River estuary, 1972.

17 60 July August September October JJ E E 50 I F/. / %% 5% :,t %, %S% % 'a.. %% It '4. 5.J I t.'i S SI Li 0 SI'S Kilometers from Ocean Fig. 7. Mean lengths of American shad collected at various distances from the ocean in the Umpqua River estuary, July through October 1972.

18 Juvenile shad typically remain in freshwater or estuaries during their first summer of life and migrate to the ocean in the fall. I believe that shad in the Umpqua River migrate to the ocean throughout the summer and fall with some remaining in the estuarine environment for up to a year. Hildebrand and Schroeder (1928) and Leach (1925) reported finding yearling shad in Chesapeake Bay and the Potomac River, respectively. Juvenile Pacific herring was the most abundant species captured. Herring were most abundant in the lower river stations but were found as far upriver as the Gardiner Channel. Herring were not captured in the earliest samples taken in late June or early July, probably because they were too small to be captured in the beach seine. By late July the herring averaged about 65 mm fork length and by late October they had grown to 90 mm. Engraulidae. Northern anchovies were captured in small numbers at the standard sampling sites. Two were seined at Social Security Beach and one at North Spit. Thirty-eight anchovies were gillnetted in Gardiner Channel in the only night sets made. Anchovies were probably present in far greater numbers than indicated in the samples, but were not captured by our sampling techniques. Salmonidae. Juvenile coho salmon were captured in June (one fish at supplemental seining site C near the North Spit), July (two fish at Social Security Beach), and August (one fish in the Scholfield Slough gillnet samples). These fish appeared to be smolts with the possible exception of the single specimen captured at Scholfield Slough which was 96 mm (fork length) and possibly a resident fish. Salinity in Scholfield Slough, while not measured, was probably low and the area may have supported a small resident coho population. The remaining coho salmon sampled were either jack or adult fish captured in September and October. All of the L9 chinook salmon captured were juvenile fish and none were captured upstream from the Gardiner Channel seining site. Surface salinities near this site were approximately 15 0/00 at high tide (Mullen 1973). Water temperatures at the upper sites, such as Mill Creek and Spruce Beach, exceeded 20 C in July and August and probably account for the apparent lack of chinook salmon rearing in that area. Cutthroat and rainbow trout were captured in small numbers and almost entirely in gill-net samples in upper Umpqua and Smith estuaries. A single cutthroat trout, approximately 25 cm fork length, was seined in the lower estuary at Social Security Beach in mid-july. Osmeridae. Surf smelt were the second most abundant species collected but were confined to the lower estuary. About 96 of those sampled were captured at or near the North Spit and Social Security Beach standard seining sites. Surface salinities in that area were never observed below 20 0/00 at low tide and usually exceeded 30 /oo at high tide (Mullen 1973). Separate counts of adult and juvenile surf smelt were not recorded, but the large numbers caught in August and early September mainly consisted of young-of-the-year fish. 14

19 The only other true smelt captured were night smelt. Eight were caught in a single seine haul at North Spit in early September at high tide. Cyprinidae. Umpqua squawfish and redside shiners were captured in moderate abundance throughout the freshwater zones of the estuary. Squawfish were caught as far downstream as the Black's island standard seining site where salinities of up to 10 0/00 occurred on high tides. Redside shiners, however, were not captured downstream from the Spruce Beach site or the Lower Smith River site except for individuals captured in Scholfield Slough. Redside shiners probably never experienced salinities above 3 or 4 0/oo Catostomidae. Largescale suckers were seined in the vicinity of Mill Creek and Scottsburg and gilinetted at the upper Smith River site. They were not captured in the main river below these points except in adjoining sloughs such as Dean Creek, Scholfield Slough, and Otter Slough. Ictaluridae. Eight brown bullheads were captured in two seine hauls at nonstandard sites M and P (Fig. 2) in the upper Umpqua River estuary. All were caught in areas with no measurable salinity. Gadidae. Only three Pacific tomcod were captured, all at North Spit at high tide. Pacific tomcod were the most common species caught by sport anglers in the Umpqua River estuary in 1971, comprising about 3O / of the total catch by shore anglers (Gaumer, Demory, and Osis 1973). Atherinidae. Topsrnelt were moderately abundant in seine hauls in the mid-estuary. They were found as far downstream as Social Security Beach, but peak abundance was at the Black's Island seining site where 79 /a of the topsmelt were captured. The abundance of topsmelt at Black's Island was consistent, with catches of several hundred topsmelt per seine haul from late August through September. Gasterosteidae. Only 24 threespine stickleback were captured, and they were not consistently captured at any one location. They were captured over a broad area, ranging from river km I to river km Syngnathidae. Four bay pipefish were seined at Spruce Beach on September 20. Their abundance and distribution probably was not reflected in these samples because of the difficulty of capturing pipefish by beach seine. Pipefish were generally associated with eel grass beds which were difficult to seine. There were small patches of eel grass at the Spruce Beach seining site. Percichthyidae. Two young-of-the-year striped bass were gillnetted in Otter Slough in mid-september. These fish measured 97 and 120 mm fork length. The remaining 30 striped bass captured ranged from 17 to 57 cm fork length and averaged about 40 cm. 15

20 No striped bass were captured downstream from Black's Island even though adults are often caught below that point in the intensive sport fishery. Striped bass were captured regularly in Otter Slough where 13 were sampled. Centrarchidae. Three largemouth bass and one black crappie were captured. The largemouth bass were young-of-the-year fish. Two were gillnetted in Dean Creek and one was seined at Spruce Beach. The black crappie measured 20 cm fork length and was seined near the Scottsburg Wayside at river km Embiotocidae. Seven species of surfperch were recorded. All were confined to the lower 5-10 km of the estuary. except shiner perch, which were abundant up to Black's Island and were found in smaller numbers in Otter and Scholfield sioughs. Only 36 walleye, silver, white, and pile perch combined were captured. Striped and redtail perch were more common with 52 and 73 sampled, respectively. Shiner perch were abundant with 7,185 captured, but large numbers of young-of-the-year often escaped by swimming through the seine. Pholidae. Three saddleback gunnels were seined in two hauls at about river km 3.5. Ammodytidae. Pacific sandlance were the fourth most abundant species sampled but were restricted in their range, being collected only at Social Security Beach and North Spit. About 75 /a of the sandlance were captured in a single seine haul made at Social Security Beach in mid-august at high tide. Gobiidae. Only three arrow gobies were captured at the standard seining sites (Gardiner Channel and Black's Island). Forty-five arrow gobies were captured at supplemental sites E, J, and K, using the smaller mesh 6 m seine. Scorpaenidae. A single young-of-the-year black rockfish was seined at Army Hill in mid-july. However, in 1971 shore anglers caught an estimated 2,425 black rockfish, all at the south jetty and training jetty (Gaumer, Demory, and Osis 1973). Our seining sites in the lower estuary were along sandy beaches, where rockfish rarely occur. Hexagrarimidae. A single kelp greenling was seined at North Spit, whereas three longcod were seined at Social Security Beach. The relative abundance of these species was probably considerably higher than the seining data indicated. Sport anglers harvested an estimated 1,111 kelp greenl ing and 405 rock greenl ing in 1971 (Gaumer, Demory, and Osis 1973). Cottidae. Three silverspotted sculpins were caught at supplemental site C, whereas 30 sharpnose sculpins were caught at supplemental site E, using the 6 m seine. Neither species was captured at any other site. Both species were captured among eel grass which was not normally sampled. 16

21 Prickly sculpins were captured as far downstream as the Gardiner Channel. At low tide, salinities in that area were about 5 0/00. Pacific staghorn sculpins were found upstream to the Lower Smith River seining site and the Spruce Beach site where low tide salinities were only 23 /o (Mullen 1973). Bothidae. Only a single speckled sanddab was captured at Social Security Beach in mid-july. This was in sharp contrast to Coos Bay where Cummings and Schwartz (1971) recorded speckled sanddabs as far upstream as river km 43.5 and Hostick (1975) recorded up to eight sanddabs per seine haul. Pleuronectidae. English sole were moderately abundant in the lower 10 km of the river. The largest catches were made at Cutoff Flats and Army Hill. Both of these sampling areas were shallow sites with muddy substrates. Starry flounder were distributed throughout the estuary. Larger specimens were generally captured in the lower estuary, while the smaller, but more abundant, fish were further upriver. Most of the individuals captured above the confluence of the Umpqua and Smith rivers were youngof-the-year. Only nine sand sole were captured, all at North Spit. They were captured throughout the study period and on both low and high tide cycles. ACKNOWLEDGMENTS This study was supported in part by funds received from the Anadromous Fish Act (PL ), administered by the U. S. National Marine Fisheries Service. Gary Hostick and Neil Ten Eyck carried out a large part of the field activities and assisted in the tabulation of data. Larry Korn, Jim Lichatowich, Alan McGie, and Harry Wagner reviewed the manuscript. 17

22 LITERATURE CITED Cummings, E., and R. L. Berry Some observations on fish distribution in Tillamook Bay, Oregon, with notes on shellfish, temperature, and physical characteristics. Fish Comm. Oreg., Coastal Rivers Invest. Info. Rept Mimeo. 29 pp. Cummings, E, and E. Schwartz Fish in Coos Bay, Oregon, with comments on distribution, temperature, and salinity of the estuary. Fish Comm. Oreg., Coastal Rivers Invest. Info. Rept Mimeo. 22 pp. Forsberg, B. P., J. A. Johnson, and S. M. Kiug Identification, distribution, and notes on food habits of fish and shellfish in Tillamook Bay, Oregon. Fish Comm. Oreg., Contract Rept. Mimeo. 85 pp. Gaumer, T., D. Demory, and L. Osis Umpqua River estuary resource use study. Fish Comm. Oreg., Mgt. and Res. Div. 25 pp. Hildebrand, S. F., and W. C. Schroeder Fishes of Chesapeake Bay. Bull. U. S. Bur. Fish. 43: Hostick, G. A Numbers of fish captured in beach seine hauls in Coos River estuary, Oregon, June through September Fish Comm. Oreg., Coastal Rivers Invest. Info. Rept Mimeo. 22 pp. Leach, G. C Artificial propagation of shad. Pages In U. S. Bur. Fish. Doc. 981, App. VIII, Rept. U. S. Comm. Fish., 1911T. Mullen, R. E Temperature and salinity observations in the Umpqua River estuary, July-October Fish Comm. Oreg., Coastal Rivers Invest. Info. Rept Mimeo. 34 pp. Oregon Division of State Lands Oregon estuaries. Div. St. Lands, Oreg. Booklet. Reimers, P. E., and K. J. Baxter Fishes of Sixes River, Oregon. Oregon. Dept. of Fish & Wild., Research Sect., Info. Rept. Ser., Fish pp. 18

23 APPENDIX A (Tables A-i through A-15) Numbers of fish collected at standard sampling sites in the Umpqua River estuary, Each samie cc':sised of a single seine haul or gill-net set except where noted.

24 Appendix Table A-i. Social Security Beach seine site, Umpqua River (low tide). Species Collection dates (1972) 6/28 7/12 7/26 8/11 8/24 9/8 9/22 10/17 10/26 Total American shad Pacific herring , , ,740 Northern anchovy Cohosalmon Chinook salmon Cutthroat trout Surf smelt , , ,902 Topsmeit Threespine stickieback Shiner perch Silver surfperch Pacific sandlance Lingcod Pacific staghorn scuipin Speckled sanddab English sole Starry flounder Number of species Number of individuals , ,825 1,903 1, ,759 1 Jacks.

25 Appendix Table A-2. Social Security Beach seine site, Umpqua River (high tide Species Collection dates (1972) 7/7 8/1 8/17 9/1 Total Pacific herring Northern anchovy Chinook salmon Surf smelt 353 3,000 1, ,921 Pacific sandlance 6 0 3, ,185 Lingcod Pacific staghorn sculpin Starry flounder Number of species Number of individuals 365 3,015 4, ,137

26 Appendix Table A-3. North Spit seine site, Umpqua River (low tide). Species Collection dates (1972) 6/28 7/12 7/26 8/11 8/24 9/8 9/22 10/17 10/26 Total Pacific herring ,362 Northern anchovy Chinook salmon Surf smelt Topsmel t Shiner perch Silver surfperch Pacific sandlance English sole Starry flounder Sand sole Number of species Number of individuals ,322

27 Appendix Table A-4. North Spit seine site, Umpqua River (high tide). Collection dates (1972) Species 6/21 1 8/1 8/17 9/1 Total American shad Pacific herring Coho salmon Chinook salmon Surf smelt Night smelt Pacific tomcod Redtail surfperch Shiner perch Striped seaperch Walleye surfperch Silver surfperch Pacific sandlance Kelp greenling English sole Starry flounder Sand sole Number of species Number of individuals ,290 1 The catch for 6/21 is the average of Io seine hauls.

28 Appendix Table A-5. Army Hill seine site, limpqua River. Species Collection dates (1972) 6/28 7/12 7/26 8/11 8/214 9/8 9/22 10/17 Total American shad Pacific herring , ,389 Cohosalmon Chinook salmon Surf smelt Shiner perch Saddleback gunnel Black rockfish Pacific staghorn sculpin English sole Starry flounder '-h' Number of species Number of individuals , ,632 1 Jack.

29 Appendix Table A-6. Cutoff Flats seine site, Umpqua River. Species Collection dates (1972) /10 7/24 8/8 8/23 9/7 9/22 10/18 Total American shad Pacific herring Surf smelt Topsmelt Shiner perch Striped seaperch Walleye surfperch Pacific staghorn sculpin English sole Starry flounder Number of species Number of individuals

30 Appendix Table A-7. Gardiner Channel seine site, Umpqua River. Species Collection dates (1972) 6/27 7/10 7/24 8/8 8/23 9/7 9/21 10/16 Total American shad Pacific herring Chinook salmon Topsmelt Threespine stickieback Shiner perch ,713 Arrow goby Prickly sculpin Pacific staghorn sculpin Starry flounder Number of species Number of individuals ,455

31 Appendix Table A-8. Black's Island seine site, Umpqua River. Species Collection dates (1972) 6/27 7/10 7/24 8/9 8/22 9/6 9/20 10/18 Total American shad Coho salmon Squawfish Largescale sucker Topsmelt Threespine stickleback Striped bass Shiner perch ,509 Arrowgoby Prickly sculpin Pacific staghorn sculpin Starry flounder Number of species Number of individuals , ,076 1 Adult.

32 Appendix Table A-9. Spruce Beach seine site, Umpqua River. Species Collection dates (1972) 6/29 7/13 7/21+ 8/10 8/22 9/6 9/20 10/18 Total American shad Squawfish Ill Topsmelt Threespine stickleback Bay pipefish Striped bass Largemouth bass Prickly sculpin Pacific staghorn sculpin Starry flounder Number of species Number of individuals ,658

33 Appendix Table A-lU. Mill Creek seine site, Umpqua River. Collection dates (1972) Species 6/28 7/13 7/214 8/10 8/22 9/6 9/20 10/16 Total American shad Squawfish Redside shiner Largescale sucker Starry flounder Number of species Number of individuals

34 Appendix Table A-il. Lower Smith River seine site, Smith River. Species Collection dates (1972) 6/27 7/10 7/24 8/8 8/23 9/7 9/21 10/16 Total American shad Rainbow trout Squawfish Redside shiner Topsmelt Threespine stickleback Striped bass Prickly sculpin Pacific staghorn sculpin Starry flounder Number of species Number of individuals

35 Appendix Table A-12. Scholfield Slough gill net site, Umpqua River. Species Collection dates (1972) 7/5 7/20 8/2 8/16 8/30 9/14 9/27 Total American shad Coho salmon Squawf I sh Largescale sucker Striped bass Shiner perch Prickly sculpin Number of species Number of individuals Jacks.

36 Appendix Table A-13. Dean Creek Slough gill net site, Umpqua River. Species Collection dates (1972) 7/7 7/ /17 8/30 9/la 9/27 Total Cutthroat trout Squawfish Redside shiner Largescale sucker Striped bass Largemouth bass Number of species Li 2 6 Number of individuals

37 Appendix Table A-14. Otter Slough gill net site, Smith River. Species Collection dates (1972) 7/6 7/19 8/2 8/15 8/31 9/15 9/27 Total American shad Coho salmon o Cutthroat trout Squawfish Redside shiner Largescale sucker Striped bass / Shiner perch Number of species / Number of individuals / Adult. 2 Young-of- the-year.

38 Appendix Table A-15. Upper Smith River gill net site, Smith River. Species Collection dates (1972) 7/6 7/19 8/2 8/18 8/31 9/15 9/27 Total American shad Coho salmon Cutthroat trout Rainbow trout Squawfish Redside shiner Largescale sucker Striped bass Number of species Number of individuals Jack.

39 APPENDIX B (Tables B-] through B-2) Numbers of fish collected at supplemental sampling sites in the Umpqua River estuary, sarrp le consited of a single seine hau or gill-net set.

40 Appendix Table B-I. Supplemental seine sites A through S, Umpqua River. BT Collection sites and dates (1972) A7 B2 C2 DJ E F2 J)21 8/214 6/20 W2l 6/ Jl 9/1 6L20 8/30 Aii r i can shad Pacific herring Coho salmon Chinook salmon Surf smelt Umpqua squawfish Redside shiner Largescale sucker Brown bullhead Topsmelt Threespine stickleback Striped bass Black crappie Redtail surfperch Shiner perch Striped seaperch Walleye surfperch Silver surfperch White seaperch Pile perch Saddleback gunnel Arrowgoby Silverspotted sculpin Sharpnose sculpin Prickly sculpin Pacific staghorn sculpin English sole Starry flounder Number of species Number of individuals

41 i Appendix Table B-i. Species (Continued) HI 8/30 Il 6/29 Collection sites and dates (1972) tl 11 7/10 7/24 8/8 8/23 Il 10/18 10/26 American shad Pacific herring Coho salmon Chinook salmon Surf smelt Umpqua squawfish 0 O Redside shiner Largeseale sucker Brown bullhead Topsmelt Threespine stickleback Striped bass Black crappie Redtail surfperch Shiner perch Striped seaperch Walieye surfperch Silver surfperch White seaperch Pile perch Saddleback gunnel Arrow goby Silverspotted sculpin Sharpnose sculpin Prickly sculpin Pacific staghorn sculpin English sole Starry flounder Number of species Number of individuals

42 Appendix Table B-i. (Continued) Species 9/14 K3 9/14 7/13 Collection sites and dates (1972) MI N NI 01 8/24 6/28 7/13 8/3 El 8/22 American shad Pacific herring Coho salmon Chinook salmon Surf smelt Umpqua squawfish Redside shiner Largescale sucker Brown bullhead Topsmelt Threespine stickieback Striped bass Blackcrappie Redtail surfperch Shiner perch Striped seaperch Walleye surfperch Silver surfperch Whiteseaperch Pile perch Saddleback gunnel Arrow goby Silverspotted sculpin Sharpnose sculpin Prickly sculpin Pacific staghorn sculpin English sole Starry flounder Number of species Number of individuals

43 Appendix Table B-I. (Continued) American shad ,025 Pacific herring Coho salmon Chinook salmon Surf smelt Umpqua squawfish Redside shiner Largescale sucker Brown bullhead Topsmelt Threespine stickleback Striped bass Black crappie I Redtail surfperch Shiner perch ,675 Striped seaperch Walleye surfperch Silver surfperch White seaperch Pile perch Saddleback gunnel Arrow goby Silverspotted sculpin Sharpnose sculpin Prickly sculpin Pacific staghornsculpin English sole Starry flounder Number of species Number of individuals Collection sites and dates (1972) Q7 R7 Species 8/10 8/10 8/3 Toa m bag seine , m beach seine. 3 6 in seine.

44 1 Appcndix Table B-2 Supplemental gill net sie 1 through IX, Umpqua River Species i!. x 8/24 Collectio*; sitesand dates (1972) / 2 Iv IV 8/24 7/5 7/20 8/2 IV 8/16. Northern anchovy Cutthroat trout Rainbow trout Umpqua squawfish Redside shiner Largescale sucker Threespine stickleback o o 0 :1 0 Shiner perch O Prickly sculpin Number of species Number of individuals

45 Appendix Table B-2. (Continued) Species V 8/3 Collection sites and dates 1 VI VII VIII IX 8/2 8/2 8/3 8/3 Totals Northern anchovy Cutthroat trout Rainbow trout Umpqua squawfish Reds ide shiner Largescale sucker Thrëespine stickleback Shiner perch Prickly sculpin Number of species 3 2 '4 9 Number of individuals Small mesh net only. Night set.