248 
REPORT OF COMMISSIONER OF FISH AND FISHERIES. 
The following detailed data show the nature of the stomach contents 
of series of silversides from Woods Hole, collected at frequent inter- 
vals between April and December, 1900, by Mr. Vinal N. Edwards. 
Incidentally, the length, sex, and spawning condition are given. 
Stomach contents of silversides from Woods Hole. 
[Great Harbor, April1, 2 p.m.; bottom grass and mud; temperature of water 37° F.] 












No. HsHern Sex. Spawning condition. Stomach contents. 
Inches. 
1 ABI ENG 5 55- Gonadgsismalllearesase =e Gopenoda, 
2 4.50 | Female...|..... Oi ae cece cles sisicteete Fragment 1.5inches long of slen- 
der fish. 
3 4 Full of copepods. 
4 4,25 Do. 
5 4.25 Sie Do. 
6 3. 50 .| Copepods and 1 amphipod. 
7 3.37 Empty. 
8 3.75 Full Of copepods. 
9 3.12 Empty. 
10 2.75 Do. 
[Eel Pond, April 5, 10 a.m.; bottom grass and mud; temperature of water 38° F.] 
1 4.75 Full of small copepods. 
2 4.12 d Do. 
3 4.37 1 Do. 
4 4 Seis Copepods and mysis. 
5 4, 06 GQOizaae Full of copepods. 
6 4.25 eas Do. 
7 3.75 so08 Mysis and copepods. 
8 3.75 Oat ae Distended with copepods. 
9 4.94 ae 5 Mysis and copepods. 
10 4 Jal sisers= Full of copepods. 

[Great Harbor, April 12, 10 a.m.; bottom grass and sand; temperature of water 39° F.] 

SomtseakwNyH 
a 
COIRS/S |S eS C9 ESOS 
BIR PS 
DAA AH 
Reco 109 OD 
td i | 
Female... 

Copepods and mysis. 
Copepods. 
Copepods and 1 mysis. 
Mysis and a few copepods. 
Few copepods. 
oO. : 
Full of copepods. 
Copepods and mysis. 
Hey copepods: 
0. 


{Great Harbor, April 16, 10 a.m.; bottom grass and mu 
d; temperature of water 40° F.] 

COMTI SOF Whe 
= 



4.56 | Female...| Gonads advanced.......... 
4b y ete teas dok-ce|(Gonadsismalll eS saea-aace 
425 lteees does--| Gonadsilargeracss-seeaceeee 
A AcE ke do ....| Well advanced ..........---. 
4162)3| Malle eee 2s|taaon eno ccasor saposesceasus 
4 Female Gonads large .....--.------- 
85b6)|Miale ceases sere (Go enete tena te a aco sciceeee 
ShSt lesen dos Ss202 Gow sais. eee ees 
356) |2e. ae Owsemaliees =x GOSs 5 Seen cece emcee 
Ot AY ee oar GORELS es-ce GOS Ee aaeioeinetercleressteieis 
fae small copepods. 
0. 
Copepods and mysis. 
Full of mysis. 
Distended with copepods. 
Do. 
Full of mysis. 
Full of copepods. 
Do 
Do. 


COMNTIAOOSWHe 
i 


_..| Well advanced 
.| Gonads small 
-.| Gonads small 
.mn.; bottom mud and eelgrass; temperature of water 44° F.] 
Gonads large soo. ya aisieini-10'- 
Well advaneee 

Gonads iarge 



Copepods. 
Few copepods and mysis. 
Bello copepods. 
0. 
Full of mysis and copepods. 
pot copepods. 
oO. 
Do. 
Empty. 
Full of copepods. 



