Marine life of New York–New Jersey Harbor Estuary explained

The New York–New Jersey Harbor Estuary has a variety of flora and fauna. Much of the harbor originally consisted of tidal marshes that have been dramatically transformed by the development of port facilities.[1] The estuary itself supports a great variety of thriving estuarine aquatic species; contrary to popular stereotypes, New York Harbor and its adjacent, interdependent waters are very much alive, and steadily recovering from pollution; ecologically it is true that these waters were once dead or extremely toxic but after 45 years of cleaning the estuary is in a much better state than it has been in a hundred years. Tidal flow occurs as far north as Troy, over 150 miles away. The salt front (dilute salt water) can reach Poughkeepsie in drought conditions and is present in the lower reaches of the Raritan River for most of the year.[2]

Animal species

Arthropods

Chordates

Birds

Although not aquatic animals, these birds are supported by the food and habitat the harbor provides, particularly Jamaica Bay and the Pelham Islands. Many of these birds will fly within sight of the Manhattan skyline and the estuary is a very important point for the East Coast because of its location: it is dead center in the Atlantic Flyway and many raptors and waterfowl use this spot as a rest area along their journey from New England and Canada in fall before heading further south to the Southern States and the Caribbean, reversing the journey in late March and early April.

Fish

Elasmobranch Fish: Sharks, Skates, And Rays

Despite popular belief, sharks are perfectly capable of living in the waters of the estuary as well as the deeper waters near Sandy Hook. This would include the very small species to the giants, with 25 of them being recorded as indigenous to the waters of New York State in total.[9] They were once fairly common to the estuary, as evidenced by records left behind by the Dutch describing them in a way that is unmistakable for any other family of fish, and cousins of sharks like the skates and rays never totally went extinct in the waters off New York or New Jersey. Among the rays and sharks, there are many nomadic species that migrate.

The overwhelming majority of sharks have no interest in hunting humans, as there is plenty of prey available for them to hunt in the nearby waters. Larger species of shark prefer seals, dolphins, and large fish like tuna and billfish, which are found in the waters around the estuary. Most shark species are not known to prey on humans, with increased attacks occurring when natural prey is scarce.[10] The New York Bight, the triangle of water with Montauk at one apex, the Jersey Shore at the second apex, and New York Harbor in the middle, is known for its abundance of marine life,[11] thus providing a large amount of prey for sharks. The exact migration pattern is not completely known and currently being studied, but the general belief is that the larger pelagic sharks migrate north in the spring and return again to Florida and Georgia by the end of November as the water becomes too cold to be bearable. The waters in this area are also a haven for the larger species whose numbers are threatened as shark finning is forbidden by the State of New York.

Rays

Cownose ray (Rhinoptera bonasus)

Mammals

All marine mammals are protected under the Marine Mammals Protection Act of 1972.

Whales

All whales that visit the estuary are wild animals; many, like the humpback, may be mothers with calves. The water from their blowholes will usually be visible long before the rest of the body is. They will defend themselves vigorously and violently if they believe they or their babies are in danger. A recommended distance of at least 100 yards must be maintained between a vessel and the whale, and pursuing one when it does not seek contact is illegal.[21] It is not unknown for some species to be inquisitive and should the whale approach willingly, the boatmen must turn off the engine and give the beast a way out so that if the whale feels uneasy, it can leave.

From 2007-2009, an expert from Cornell University did an experiment listening in on the acoustics of the Harbor Estuary, where, to the astonishment of many, he discovered at least six species of whale vocalizing less than 20 miles from where the Statue of Liberty stands, just past the Verrazano Bridge where the water gets deeper.[23] [24] Historical records show that whales were plentiful in the area going well back into colonial history: in 1697, the charter for Trinity Church received its official royal charter, which gave it not only a large chunk of land in Lower Manhattan, but also the profit from any whales or shipwrecks along the banks of the Hudson.[25] The return of these whales is evidence of the environment's improvement over the past forty years: whales have been absent from New York's waters west of the Hamptons for over a hundred years as the water became incredibly polluted and in 1989 the population was zero. In 2009, however, a young humpback whale attempted to penetrate the gateway to the upper harbor when it passed under the Verrazano Bridge, causing the men and women ashore watching the whole debacle from Fort Hamilton a great deal of alarm, concerned for its health and the safety of the Coast Guard officers trying to herd the frightened, massive creature back out to sea (the whale returned unharmed.)[26] In late 2017, for the first time, Woods Hole Oceanographic Institute in partnership with the New York Aquarium began to count the whales in a census as the population has expanded mightily.[27]

Tunicates

Cnidarians

Corals

Echinoderms

Mollusks

Bivalves

Cephalopods

Gastropods

Annelida

Porifera

Bryozoans

Algae

See also

References

External links

Notes and References

  1. Montalto. Franco A.. Steenhuis. Tammo S.. The link between hydrology and restoration of tidal marshes in the New York/New Jersey Estuary. June 2004. Wetlands. 24. 2. 414–425. 10.1672/0277-5212(2004)024[0414:TLBHAR]2.0.CO;2. 7715635 .
  2. http://www.dec.state.ny.us/website/hudson/hre.html Hudson Estuary Basics
  3. Web site: Archived copy . 2020-03-25 . https://web.archive.org/web/20160413070103/http://docs.google.com/viewer?a=v&q=cache%3ABwGdC-rWyD4J%3Awww.njmsc.org%2Feducation%2FLesson_Plans%2FKey%2FBlue_Crab.pdf+blue+crab+hudson+river&hl=en&gl=us&pid=bl&srcid=ADGEESjHUP7Qb-721t1sNd9fx852frAADj2Kw0GDb7rRpYtuZotDLWOf2S49SV4zTZ3w_robcahjWv3pXL_yl42bRys5dfuVhx-Wf2GDE4TUqdYwHK7XSIcE_qgJgIEseF43i0rlm3O9&sig=AHIEtbTT7RSYoitcrHVyTWncnLxw4vk_6g . 2016-04-13 . dead .
  4. Web site: New York Horseshoe Crab Monitoring Network . 2022-04-22 . www.nyhorseshoecrab.org.
  5. Web site: Feeding Pelicans Can Kill the Birds. 2017-07-07. Bay Soundings. en-US. 2019-03-20.
  6. Web site: Not a Good Year if You're a Red Knot .
  7. Web site: American Eel Is in Danger of Extinction. Sneed. Annie. December 1, 2014. scientificamerican.com. 2020-02-08.
  8. Web site: Millions of Seahorses Wind Up Dead on the Black Market for This Senseless Reason. 2018-08-27. EcoWatch. en. 2019-03-09.
  9. Web site: Sharks - Blue York. blueyork.org. en. 2018-06-14.
  10. Web site: Gray. Richard. The real reasons why sharks attack humans. 2020-07-26. www.bbc.com. en.
  11. Web site: Marine mammal madness in the New York Bight! Thorne Lab. 2020-07-26. you.stonybrook.edu.
  12. Web site: Marshall. Lindsay J.. Barone. Monica. 2016. SharkFin Guide: identifying sharks from their fins. July 26, 2020. Food and Agriculture Organization of the United Nations. 39.
  13. Web site: New England Basking Shark & Ocean Sunfish Project Basking Shark Information. 2020-07-26. www.nebshark.org.
  14. Web site: The Matawan Man-eater: The Real New Jersey "Jaws" of 1916 Weird NJ. weirdnj.com. 2019-02-20.
  15. Web site: Maintaining the Internal Sea. 2020-07-26. www.elasmo-research.org.
  16. Web site: How Big are Great White Sharks? Smithsonian Ocean. 2020-07-26. ocean.si.edu. en.
  17. Web site: Daley. Jason. Rare Great White Shark Nursery Discovered Off the Coast of New York. 2020-07-26. Smithsonian Magazine. en.
  18. Sharks in the City
  19. Web site: Surf-Sharking Revival. 2017-07-27. On The Water. en-US. 2019-02-24.
  20. Book: Goodier, John. December 2004. The Lighthouse Encyclopedia: The Definitive Reference2004445Edited by Ray Jones. The Lighthouse Encyclopedia: The Definitive Reference. Guilford, CT: Globe Pequot Press 2004. 274 pp., £22.50/$27.95. 0-7627-2735-7. Reference Reviews. 18. 8. 39. 10.1108/09504120410565891. 0950-4125.
  21. Web site: CAUTION . . . National Oceanic and Atmospheric Administration . https://web.archive.org/web/20170427115705/https://sero.nmfs.noaa.gov/protected_resources/outreach_and_education/documents/mm_viewing_stranding.pdf . 27 April 2017 . 8 February 2020.
  22. News: The whales off the coast of New York. BBC News . en. 2018-06-14.
  23. Web site: Biology Forum Biology-Online Dictionary, Blog & Forum -. www.biology-online.org. 2020-02-08.
  24. Web site: Whales Appearing in New York Harbor in Greater Numbers | the Cornell Daily Sun . 2011-04-05 . dead . https://web.archive.org/web/20120322005113/http://cornellsun.com/section/news/content/2011/02/04/whales-appearing-new-york-harbor-greater-numbers . 2012-03-22 .
  25. Web site: Whales in New York - Past and Present. Michelle and James Nevius. en. 2020-02-08.
  26. Web site: Humpback Whale Heads Out to Sea. Lee. Jennifer 8. 2009-04-09. City Room. en-US. 2020-02-08.
  27. Web site: Why whales are returning to New York City's once polluted waters 'by the ton'. 2017-08-29. ABC News. en. 2018-06-14.
  28. Web site: Results of Seine the Bay Day June 11, 2017. NY HARBOR NATURE. en. 2019-02-24.
  29. Web site: GEOLOGY AND GEOGRAPHY OF THE NEW YORK BIGHT. www.geo.hunter.cuny.edu. 2018-06-23.