Long Island Collecting Log, Part 1: October Magic

by | Oct 5, 2013 | Conservation, DIY, Eye Candy, Fish, Science | 1 comment

Seining for tropicals on a cool October morning

Seining for tropicals on a cool October morning

As the days shorten and the nights get colder in New York, the beach crowds and SCUBA divers give way to cold north winds and bundled-up fishermen, cashing in on the fall striped bass migration.  Between the less-than-favorable weather, and the need to return to winter routines, many tropical fish collectors around here have thrown in the towel for the season.  But we die-hards have a secret.  

Because of seawater’s thermal inertia, the water temperature in early October is warmer than it’s been for most of the summer.  Also, the post-larval tropical fishes have been accumulating in our waters since June, and although many of them will soon succumb to the cold, species diversity is currently at its highest point of the year.  So in addition to the tiny new arrivals that have barely taken on their juvenile coloration, there are tropical fishes in our bays that have attained sizes that border on respectable.  One of the greatest advantages to collecting at this time of year is that many of the fishes here now have been growing all summer and their increased size means that they will be considerably easier to feed and hardier in general.  Anyone who has tried to keep a dime-sized spotfin butterflyfish is familiar with the difficulty involved in keeping weight on them, but 4-inch specimens, which are common this time of year, are relatively easy to feed.

The author with a bag of large, late-season spotfin butterflyfish

The author with a bag of large, late-season spotfin butterflyfish

Another advantage to October fish collecting, is that because of the seasonal timing of spawning events further south, new species are arriving on the scene that haven’t been around all summer.  October is often when we first start to see angels, wrasses, parrotfish, and other species that remain virtually unknown to fair-weather fish collectors.

Autumn is the best time to find blue angels in Long Island waters.

Autumn is the best time to find blue angels in Long Island waters.

 

A redfin parrotfish, one of the last species to appear in the northeast before the water temperature gets too low to support tropical fishes.

A redfin parrotfish, one of the last species to appear in the northeast before the water temperature gets too low to support tropical fishes.

For more on this topic, keep an eye out for my forthcoming book: Drifters, a guide to the stray tropical fishes of the northeastern United States.

  • Todd Gardner

    Todd Gardner is a professor of Aquaculture and Marine Biology at Carteret Community College in Morehead City, North Carolina where he oversees a partnership between the college and The Biota Group, a world leader in sustainably cultured marine life. Todd's life and career have been shaped by his passion for ocean life and he has written numerous scientific and popular articles about his research and experiences collecting, keeping, and culturing marine organisms. Todd’s professional background includes work on a National Geographic documentary, commercial aquaculture at C-quest Hatchery in Puerto Rico, and an 11-year term at the Long Island Aquarium where he spent much of his time developing techniques for rearing marine fish larvae. To date he has raised more than 50 species. In 2013 Todd received the prestigious Aquarist of the Year Award from the Marine Aquarium Society of North America (MASNA). In his spare time, Todd dives, photographs marine life, runs marathons, and makes music.

1 Comment

  1. Ben Ilciuc

    What are the regulations/permits required to collect tropicals in New York for your own private aquarium? I am from Chicago and would like to make a trip out there this August/September. Thank you in advance.

    Reply

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