baldwin

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About baldwin

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  • Interests (Hobbies, favorite activities, etc.):
    fishing, camping, kayaking...
  • What I do for a living:
    Teacher: marine biology, finfish aquaculture, genetics & biotechnology
  1. Great thread here, I'm really enjoying this one.
  2. If you didn't mess with the lip, I'd say slow down. I bend the line tie up a bit and reel it slow enough so the head is under the surface and the tail wags on the surface, leaving a seductive wake. Slow it down and you'll most likely be ok.
  3. Call 3-Tand, ask to talk to Ron. He'll give you the rundown on the reel. Send me a pm and I'll give you the number.
  4. 3-Tand. Give them a call, in Stratford, CT and ask about their reels. Best service you are gonna find, too.
  5. Sounds like a good thing to have. All of them should.
  6. Last year the biggest producers for me were darters and Redfins. Not surprising.
  7. Fisheries science has to be one of the most difficult disciplines in which to justify your findings. There are just so many variables that we don't even know about, errors in reporting,... I tend to lean on the side that feels that if we're going to err in any direction, we're better off erring on the side of conservation. At least if we're wrong in that direction we still have fish left to manage.
  8. Ok, thank you, Mike. George
  9. I'm not sure what you mean by the statement " I'm pretty sure that almost none of the forage consists of menhaden, which is where we started off this discussion". I'm not arguing, just think I'm missing something. Is that meant to say that none of the striped bass forage consists of menhaden? Please explain.
  10. Overton et al. (2008) suggested a greater role of Atlantic Menhaden of all ages in Striped Bass diets. Atlantic Menhaden were often dominant prey in studies of Striped Bass diets in the Chesapeake Bay and the mid‐Atlantic region and were important prey in New England waters (Walter and Austin 2003; Walter et al. 2003; Rudershausen et al. 2005; Nelson et al. 2006; Striped Bass and Atlantic Menhaden Predator–Prey Dynamics: Model Choice Makes the Difference James H. Uphoff Jr. Alexei Sharov First published: 05 July 2018 Published in the journal of the American Fisheries Society These observations indicate that the remnant menhaden population can no longer fulfill its role as the primary prey species for striped bass because of ecological depletion https://chesapeakebayecological.org/effects-of-menhaden-depletion-on-atlantic-coast-striped-bass/ Members of the ASMFC Multispecies Technical Committee and others have worked to develop a multispecies Virtual Population Analysis (MSVPA) model to explore important predator-prey interactions among key ASMFC-managed species, including Atlantic menhaden as the primary forage fish and striped bass, bluefish, and weakfish as predators. http://www.dnr.sc.gov/swap/supplemental/marine/atlanticmenhaden2015.pdf An outbreak of disease among striped bass has coincided with the decline of their forage base. Striped bass with sores and lesions (ulcerative dermatitis) were first documented in 1994 by Dr. Eric May of the Maryland Department of Natural Resources. Since 1997, striped bass have shown a high prevalence of anomalies (skin abrasions, lesions or bacterial infections). Most of the Bay’s striped bass suffer from poor nutrition and approximately half of the population is infected with the disease, Mycobacteriosis. Most of the striped bass also had no fat in their body cavities and showed signs of poor nutrition. Griffin stated: “Atlantic menhaden was the primary prey of striped bass in the Chesapeake Bay in the early 1950s…predation demand was only slightly below prey supply throughout the modeled year for all ages.” At that time, the estimated Atlantic coast population of forage size menhaden (ages 0-2) averaged 795 billion. Griffin’s modeling using data for the same time period estimated menhaden made up 77 percent of the Bay’s ages 3-6 striped bass diet. Between 1997 and 2000, an outbreak of skin lesions and observations of emaciated striped bass, Morone saxatilis (Walbaum), in upper Chesapeake Bay were attributed to a perceived shortage of its main prey, Atlantic menhaden, Brevoortia tyrannus Latrobe. Chesapeake Bay Ecological Foundation, Inc. Easton, MD 21601 410-822-4400 MENHADEN CRUCIAL TO STRIPED BASS HEALTH & CHESAPEAKE BAY ECOSYSTEM Presented to Forage Action Team – Sept. 2016 Quarterly Meeting
  11. pplied bioenergetics models for dominant Chesapeake Bay piscivores, striped bass (Morone saxatilis), bluefish (Pomatomus saltatrix), and weakfish (Cynoscion regalis), along with site-specific data on diets, growth, and energy density, to examine trophic linkages and the relationship of predatory demand to prey supply. Atlantic menhaden (Brevoortia tyrannus), bay anchovy (Anchoa mitchilli), and spot (Leiostomus xanthurus) accounted for 65–99% of the annual biomass of piscivore diets (excluding age-0 striped bass that ate mostly invertebrates). The diets of young piscivores were dominated by anchovy, but menhaden and spot became increasingly important to older fish. Young (age < 2) striped bass ate mostly benthic prey. Older striped bass fed increasingly on pelagic sources, primarily menhaden, but bluefish and weakfish increased benthic resource use from 10% at age 0 to 50% by age 2. Comparison of consumption (supply) to demand (potential consumption) measured the suitability of Chesapeake Bay for predator production. Bluefish came closest to achieving their demand for prey, suggesting that they are more successful predators than either striped bass or weakfish. Results suggest that Chesapeake Bay may be a better nursery than production area for older fish, and prey supply (not temperature) may account for the movements and use of the estuary by older piscivores. datory demand and impact of striped bass, bluefish, and weakfish in the Chesapeake Bay: applications of bioenergetics models Article in Canadian Journal of Fisheries and Aquatic Sciences 52(8):1667-1687 · April 2011 with 83 Reads DOI: 10.1139/f95-760
  12. My apologies, Mike, you're right. The assessments showed "no overfishing occurring". Things haven't looked very good for bunker lately around here in my waters recently, though. About your statement "My first thought is that if the predator population in the pens is higher than the level of predators that would normally be found in the wild (or in addition to the predators already in the wild), they would place greater stress on the forage populations than the wild stocks would.", I wasn't implying that aquacultured fish are placing greater stress on the forage population than wild fish would. I'm saying that the aquaculture industry, added to the predation by wild stocks, is placing greater stress on forage populations. Aquacultured mouths to feed added to the already established wild predators= greater stress on forage populations than before the growth of aquaculture. As far as generalistic feeding, yes they do feed on other food sources. But, there is a good reason that adult striped bass, bluefish and weakfish feed primarily on menhaden. Menhaden are a high energy food source, high in lipids (fats and oils). This is needed to fatten them up and sustain them through migration southward and the winter. Many other foods (crabs, shrimp, eels, silversides,...) do not have the lipid content of the menhaden.
  13. Tattoo's Sea Pup and Rebel Jumpin' Minnow are my current favorites. I've thrown Docs a few times, nothing caught...yet. I'm waiting for something big to move the Doc into my first place slot.
  14. Good question. Aquaculture is supposed to take pressure off wild stocks, but harvesting wild forage to feed farmed fish reduces available feed for the wild fish that aquaculture is meant to save. There’s not enough for wild fish, a growing aquaculture industry and a growing reduction fishery. There is already a documented problem with the menhaden stocks.
  15. You’re right, Charles. Wilbur Ross is no champion of fisheries management. Or even “America first” on this issue. As to Cooke buying Omega, it’s senseless to raise farmed fish on wild forage and call it sustainable. I