Whether we live by the seaside, or by the lakes and rivers, or on the prairie, it concerns us to attend to the nature of fishes, since they are not phenomena confined to certain localities only, but forms and phases of the life in nature universally dispersed. The countless shoals which annually coast the shores of Europe and America are not so interesting to the student of nature as the more fertile law itself, which deposits their spawn on the tops of mountains, and on the interior plains; the fish principle in nature, from which it results that they may be found in water in so many places, in greater or less numbers. The natural historian is not a fisherman, who prays for cloudy days and good luck merely, but as fishing has been styled "a contemplative man's recreation", introducing him profitably to woods and water, so the fruit of the naturalist's observations is not in new genera or species, but in new contemplations still, and science is only a more contemplative man's recreation. The seeds of the life of fishes are everywhere disseminated, whether the winds waft them, or the waters float them, or the deep earth holds them; wherever a pond is dug, straightway it is stocked with this vivacious race. They have a lease of nature, and it is not yet out. The Chinese are bribed to carry their ova from province to province in jars or in hollow reeds, or the water-birds to transport them to the mountain tarns and interior lakes. There are fishes wherever there is a fluid medium, and even in clouds and in melted metals we detect their semblance.
Think how in winter you can sink a line down straight in a pasture through snow and through ice, and pull up a bright, slippery, dumb, subterranean silver or golden fish! It is curious, also, to reflect how they make one family, from the largest to the smallest. The least minnow, that lies on the ice as bait for pickerel, looks like a huge seafish cast up on the shore. In the waters of this town there are about a dozen distinct species, though the inexperienced would expect many more.
Salmon, shad, and alewives were formerly abundant here, and taken in weirs by the Indians, who taught this method to the whites, by whom they were used as food and as manure, until the dam, and afterward the canal at Billerica, and the factories at Lowell, put an end to their migrations hitherward; though it is thought that a few more enterprising shad may still occasionally be seen in this part of the river. It is said, to account for the destruction of the fishery, that those who at that time represented the interests of the fishermen and the fishes, remembering between what dates they were accustomed to take the grown shad, stipulated that the dams should be left open for that season only, and the fry, which go down a month later, were consequently stopped and destroyed by myriads. Others say that the fish-ways were not properly constructed. Perchance, after a few thousands of years, if the fishes will be patient, and pass their summers elsewhere, meanwhile, nature will have levelled the Billerica dam, and the Lowell factories, and the Grass-ground River run clear again, to be explored by new migratory shoals, even as far as the Hopkinton pond and Westborough swamp.
Shad are still taken in the basin of Concord River at Lowell, where they are said to be a month earlier than the Merrimack shad, on account of the warmth of the water. Still patiently, almost pathetically, with instinct not to be discouraged, not to be reasoned with, revisiting their old haunts, as if their stern fates would relent, and still met by the Corporation with its dam. Poor shad! Where is thy (your) redress? When Nature gave thee (you) instinct, gave she thee the heart to bear thy fate? (Did she give you the heart to bear your fate?) Still wandering the sea in thy scaly armor to inquire humbly at the mouths of rivers if man has perchance left them free for thee (you) to enter. By countless shoals loitering uncertain meanwhile, merely stemming the tide there, in danger from sea foes in spite of thy (your) bright armor, awaiting new instructions, until the sands, until the water itself, tell thee (you) if it be so or not. Thus by whole migrating nations, full of instinct, which is thy (your) faith, in this backward spring, turned adrift, and perchance knowest (know) not where men do not dwell, where there are not factories, in these days. Armed with no sword, no electric shock, but mere Shad, armed only with innocence and a just cause, with tender dumb mouth only forward, and scales easy to be detached. I for one am with thee (you), and who knows what may avail a crow-bar against that Billerica dam? - Not despairing when whole myriads have gone to feed those sea monsters during thy suspense, but still brave, indifferent, on easy fin there, like shad reserved for higher destinies. Willing to be decimated for man's behoof after the spawning season.
Away with the superficial and selfish philanthropy of men - who knows what admirable virtue of fishes may be below low-water mark, bearing up against a hard destiny, not admired by that fellow creature who alone can appreciate it! Who hears the fishes when they cry? It will not be forgotten by some memory that we were contemporaries. Thou shalt (You shall) ere long have thy (your) way up the rivers, up all the rivers of the globe, if I am not mistaken. Yea, even thy (your) dull watery dream shall be more than realized. If it were not so, but thou wert (you were) to be overlooked at first and at last, then would not I take their heaven. Yes, I say so, who think I know better than thou canst (you can). Keep a stiff fin then, and stem all the tides thou mayest (you may) meet.
At length it would seem that the interests, not of the fishes only, but of the men of Wayland, of Sudbury, of Concord, demand the levelling of that dam. Innumerable acres of meadow are waiting to be made dry land, wild native grass to give place to English. The farmers stand with scythes whet, waiting the subsiding of the waters, by gravitation, by evaporation or otherwise, but sometimes their eyes do not rest, their wheels do not roll, on the quaking meadow ground during the haying season at all. So many sources of wealth inaccessible. They rate the loss hereby incurred in the single town of Wayland alone as equal to the expense of keeping a hundred yoke of oxen the year round. One year, as I learn, not long ago, the farmers standing ready to drive their teams afield as usual, the water gave no signs of falling; without new attraction in the heavens, without freshet or visible cause, still standing stagnant at an unprecedented height.
All hydrometers were at fault; some trembled for their English even. But speedy emissaries revealed the unnatural secret, in the new float-board, wholly a foot in width, added to their already too high privileges by the dam proprietors. The hundred yoke of oxen, meanwhile, standing patient, gazing wishfully meadowward, at that inaccessible waving native grass, uncut but by the great mower Time, who cuts so broad a swathe, without so much as a wisp to wind about their horns.